ML070180612

Form NIS-2 Owners Report for Repair/Replacement Activity as Required by the Provisions of the ASME Code Section XI

ML070180612
Person / Time
Site:	Byron
Issue date:	09/18/2006
From:	Exelon Nuclear
To:	Office of Nuclear Reactor Regulation
References
99024446-01
Download: ML070180612 (158)

Text

DOCUMENT NO.:

4.1 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 9/18/06 Name 4300 WinfleId Road, Warrenville, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 99024446-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by N P S & W VENTURE Type Code Symbol Stamp Not Applicable Name Authorization No.

Not Applicable 36400 S. Essex Road, Wilmington, IL 60481 Expiration Date Not Applicable Address 4.

Identification of System Chemical & Volume Control - CV 5.

(a) Applicable Construction Code ASME Section III 1971 Edition, S72 Addenda, NONE Code Case (b)

Applicable Edition of Section Xi Used for Repair/Replacement Activity 2001 Edition / 2003 Addenda (c)

Section XI Code Case(s)

NONE 6.

Identification of Components ASME Corrected, Code National Removed, or Stamped Name of Name of Manufacturer Board Other Year Installed (Yes or No)

Component Manufacturer Senal No.

No.

Identification Built RELIEF VALVE, VALVE&GAGE N56897-O0-0038 N/A 1CV8120 1992 Removed YES REUEF VALVE, VA&~5~GEN56897-O0-0018 N/A 1CV8120 1976 Installed YES 7.

Description of Work REPLACE RELIEF VALVE FOR 1CV8120 Nominal Operating Pressure ~

Exempt 0 Test Temp.

72 Note: Supplemental sheets in form of lists, sketches, or drawings maybe used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Other 0 Pressure 18 psi

DOCUMENT NO.:

4.1 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 9/18/06 Name 4300 WinfleId Road, Warrenville, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 99024446-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by N P S & W VENTURE Type Code Symbol Stamp Not Applicable Name Authorization No.

Not Applicable 36400 S. Essex Road, Wilmington, IL 60481 Expiration Date Not Applicable Address 4.

Identification of System Chemical & Volume Control - CV 5.

(a) Applicable Construction Code ASME Section III 1971 Edition, S72 Addenda, NONE Code Case (b)

Applicable Edition of Section Xi Used for Repair/Replacement Activity 2001 Edition / 2003 Addenda (c)

Section XI Code Case(s)

NONE 6.

Identification of Components ASME Corrected, Code National Removed, or Stamped Name of Name of Manufacturer Board Other Year Installed (Yes or No)

Component Manufacturer Senal No.

No.

Identification Built RELIEF VALVE, VALVE&GAGE N56897-O0-0038 N/A 1CV8120 1992 Removed YES REUEF VALVE, VA&~5~GEN56897-O0-0018 N/A 1CV8120 1976 Installed YES 7.

Description of Work REPLACE RELIEF VALVE FOR 1CV8120 Nominal Operating Pressure ~

Exempt 0 Test Temp.

72 Note: Supplemental sheets in form of lists, sketches, or drawings maybe used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Other 0 Pressure 18 psi

FORM NIS-2 (Back) 9.

Remarks WO# 99024446-01 Applicable Manufacturers Data Reports to be attahed CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of ~thorizationNo.

Not Applicable Signed

~

~S~~

~

Date l~27I/f

,20 s

\\1)

(,~9~or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspected the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neitherthe Inspector nor his employermakes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any mannerfor any personal injury or property damage or a loss of any kind arising from or connected with thi~inspection.

Commissions

,//-J%qi Inspectors Signature National Board, State Province, and EndOrSements Date:

I~it~//

,20

~

FORM NIS-2 OWNERS REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 05/18/05 Name 4300 Winfield Road, Warrenvllle, IL 60555 Sheet 1

of Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL 61010 Work Order No. 00437574-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Type Code Symbol Stamp Not Applicable Name Authorization No.

Not Applicable 4450 N. German Church Road, Byron, IL 61010 Expiration Date Not Applicable Address 4.

Identification of System 1A DG

- DIESEL GENERATOR 5.

(a) Applicable Construction Code Section III 1974 Edition, S176 Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacement Components 19 89 (c)

Section XI Code Cases used, N/A 6.

Identification of Components Repaired or Replaced and ReplacementComponents Name of Component Name of Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built

Repaired, Replaced, or Replacement ASME Code Stamped (Yes or No) 3/4-10 STUD Cooper Energy Services NIA N/A 1OGO1KA 1978 REPLACED NO 3/4-lO STUD Nova Machine Products HT: 223432 Code: K495 N/A CAT. lD# 37094 IDGOIKA 2004 REPLACEMENT NO 7.

Description of Work REPLACE 3/4-lO STUD WITH LONGER ONE FOR THREAD ENGAGEMENT.

ENGINE DRIVEN JACKET WATER PUMP SUCTION EXPANSION JOINT 8.

Test Conducted:

Hydrostatic El Pneumatic El Nominal Operating Pressure 0 N/A Other 0 Pressure psi Test Temp Note: Supplemental sheets in form of lists, sketches, or drawingsmay be used, provided (I) size is 8Y2 in. x 11 in., (2) information in items I through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recordedat the top ofthis form.

FORM NIS.2 (Back) 9.

Remarks WO# 00437574-01 Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this REPLACEMENT conform to the rules of the ASME Code, Section Xl.

repair or replacement Type Code Symbol Stamp Not Applicable Certificate of Auth rization~p.

Not Applicable Signed

~

e47~~Q.~

Date

,20 ~

or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspected the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, the d~wnerhas ~

and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspectornor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions

/4~Z-/1(9 Inspectors Signature National Board, State Province, and Endorsements Date:

0Z.

,20

~~f*

FORM NIS-2 OWNERS REPORT FOR REPAIRS OR REPLACEMENT As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Name 4300 Winfield Rd. Warrenville, II. 60555 Address 2.

Plant Byron Nuclear Power Station Name 4450 N. German Church Road, Byron, II.

Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron Mechanical Maintenance Type Code Symbol Stamp Not Applicable Name Authorization No. Not Applicable 4450 N. German Church Road, Byron, II.

Expiration Date Not Applicable Address 4.

Identification of System

[DG] DIESEL GENERATOR 5.

(a) Applicable Construction Code Section III 1974 Edition, Sf75 Addenda,N/A (b) Applicable Edition of Section XI Utilized for Repairs or Replacement Components 19 89 (c) Applicable ASME Section XI Code Cases: NONE 6.

Identification of Components Repaired or Replaced and Replacement Components Name of Component Nameof Manufacturer Manufacttyer Serial No.

National Board No.

Other Identification Year Built

Repabsd, Replaced, or Replacement ASME Code; Stamped (Yes or No)

UPPER JW FLTG HEAD AMERICAN STANDARD SIN:9-20003-06-1 32693 ETN: IDGO1KA-X1 1978 2005 REPLACED YES UPPER JW FLTG HEAD ENERGY STEEL

& SUPPLY CO.

S/N:NPT31848-1 N/A CAT ID 1406144 ETN: IDGOIKA-X1 REPLACEMENT YES UPPER JW END CVR: FLTG AMERICAN STANDARD S/N:9-20003-06-1 32693 ETN: 1 DGO1 KA-X1 EAST END 1978 1979 1978 1979

REPLACED YES UPPERJW END CVR: FLTG CONSOLIDATED POWER S/N:

NBN33537-1 N/A CAT ID 1390433 ETN: IDGO1KA-X1 REPLACEMENT NO UPPER JW END CVR: STA.

AMERICAN STANDARD S/N:9-20003-06-1 32693 ETN: I DGOI KA-X1 WEST END REPLACED NO UPPER JW END CVR: STA.

H~)

CONSOLIDATED POWER S/N:

NBN33537-2 N/A CAT ID 1390433 ETN: 1DGOIKA-Xl REPLACEMENT NO 7.

Description of Work REPLACE FLOATING CHANNEL HEAD AND END COVERS 8.

Test Conducted:

Hydrostatic El Pneumatic0 Nominal Operating Pressure

~

Other J~

Pressure 6.7 psi Test Temp.

170

°F Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (I) size is 8-1/2 in. x II in.,

(2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This form has been electronically generated.

Date 5/18/05 Sheet 1

of I

Unit 01 Work Order No. 00596632-01 Code Case

FORM NIS-2 (Back)

• ~*

Remarks Work Order 00596632-01 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this Replacement conforms to the rules of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of Authorization No.

Not Applicable Expiration Date Not Applicable Signed (f$?4-L Date 7/i~c

,20 0i CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by__HSB CT.

of Hartford, CT

, /

have inspe9ted)he components descrtbed Ifl this Owners Report during the period 427/5w to

, and state that to the best of my knowledge and belief, the ~)~nerhas performed examinat1bnV~ndtaken corrective measures described in the Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or propertydamage or a loss of any~iqd~risinom or nnected with this inspection.

Commissions ln~ec~s Sqiaflse N~iOnaao~o,St~ePmvtnce. ~1det~eaner~s Date~9w~ig

,20

~

FORM NlS-2 OWNERS REPORT FOR REPAIRS OR REPLACEMENT As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 5/18/05 Name 4300 Winfield Rd. Warrenville, II. 60555 Sheet 1 of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, II.

Work Order No. 00596747-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron Mechanical Maintenance Type Code Symbol Stamp Not Applicable Name Authorization No. Not Applicable 4450 N. German Church Road, Byron, II.

Expiration Date Not Applicable Address 4.

Identification of System

[DG] DIESEL GENERATOR 5.

(a) Applicable Construction Code Section III 1974 Edition, S/75 Addenda,N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacement Components 19 89 (c) Applicable ASME Section Xl Code Cases: None 6.

Identification of Components Repaired or Replaced and Replacement Components Name of Component Narneof Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built Repa~ed,

Replaced, or Replacement ASME Code; Stamped (Yes or No)

LOWER JW FLTG HEAD AMERICAN STANDARD S/N:9-20003-07-1 32694 ETN: 1DGOIKA-X2 1978 REPLACED YES LOWER JW FLTG HEAD ENERGY STEEL

& SUPPLY CO.

SIN:NPT31848-2 N/A CAT ID 1406144 ETN: IDGOIKA-X2 2005 REPLACEMENT YES LOWER JW END CVR: FLTG AMERICAN STANDARD S/N:9-20003-07-1 32694 ETN: IDGOIKA-X2 West End 1978 REPLACED NO LOWER JW END CVR: FLTG ENERGY STEEL

& SUPPLY CO.

SIN:

NBN33533-1 N/A CAT ID 1390433 ETN: 1DGOIKA-X2 1979 REPLACEMENT NO LOWER JW END CVR: STA.

AMERICAN STANDARD S/N:9-20003-07-1 32694 ETN: IDGO1KA-X2 East End 1978 REPLACED NO LOWER JW END CVR: STA.

ENERGY STEEL

& SUPPLY CO.

S/N:

NBN33538-2 N/A CAT ID 1390433 ETN: 1DGOIKA-X2 1979 REPLACEMENT NO I

JCS 7/~6.r

~f 7.

Description of Work REPLACE 0-TATIONARY, FLOATING, CHANNEL HEADS AND END COVERS 8.

Test Conducted:

Hydrostatic 0 PneumaticEl Nominal Operating Pressure

~

Other 0 Pressure 6.7 psi Test Temp.

170

°F Note: Supplemental sheets in form of lists, sketches, or drawings maybe used, provided (1) size is 8-1/2 in. x 11 in.

(2) information in items I through 6 on this report is inclUded on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This form has been electronically generated.

FORM NIS-2 (Back)

Remarks Work Order 00596747-01 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this Replacement conforms to the rules of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of Authorization No.

Not Applicable Expiration Date Not Applicable Signed

~

C~,-~L Date 7/Jg

,20___

~erso~,

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by__HSB CT.

of Hartford, CT have inspeçtedjhe components described in this Owners Report during the period to 7/j~4~

,and state that to the best of my knowledge and belief, the gwrfer has performed examinat~6ns~nd taken corrective measures described in the Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report. Furthermore, neither the Inspector nor his empIoyer~shall be liable in any manner for any personal injury or property damage or a loss of any kin~rj~ing fro or co ected with this inspection.

~a9/

Commissions C SQiUwe Hoes. ~a P,nelce. we Et~$ememe Date~9%k~/f

,20 ~yf

FORM NIS-2 OWNERS REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Name Date 05/19/05 4300 Winfield Rd. Warrenville, IL 60555 Address Sheet 1

of I

Byron Nuclear Power Station Name 4450 N. German Church Rd. Byron, IL 61010 Address Work Order: 99157436-01 Repair Organization P.O., Job No., etc Type Code Symbol Stamp Not Applicable Authorization No.

Not Applicable Expiration Date Not Applicable 4.

Identification of System DIESEL GENERATOR [DG]

5.

(a)

Applicable Construction Code Section III 19 74 Edition, S/76 Addenda, N/A Code Case (b)

Applicable Edition of Section Xl Utilized for Repairs or Replacements 19 89 (c)

Section XI code Cases used, N/A 6.

Identification of Components Repaired or Replaced and Replacement Components Name of Component

~

Name of Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built

Repaired, Replaced, or Replacement ASME Code Stamped (Yes or No) 2X3 RELIEF VLV CROSBY N60542-OO-0013 N/A IDG5O3OA 1997 REPLACED YES 2X3 RELIEF VLV CROSBY N60542-00-0006 N/A IDG5O3OA 1978 REPLACEMENT YES I

7.

Description of Work REPLACE RELIEF VLV. WITH PRE-TESTED RELIEF VLV.-PM REQUIREMNT 8.

Test Conducted:

Hydrostatic 0

Other 0 Pressure Pneumatic 48 O

Nominal Operating Pressure psi Test Temp.

144

°F NOTE: Supplemental sheets in form of lists, sketches, ordrawings may be used, provided (1) size is 8 1/2 in. x II in., (2) information in items I through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

2.

Plant Unit 01 3.

Work Performed By Byron_Mechanical Maintenance 4450 N. German Church Rd.

Byron, IL 61010 Address

FORM NIS-2 OWNERS REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI (Back) 9.

Remarks WO#99157436-01 Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this REPLACEMENT conform to the repair or replacement rules of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of Authorization No.

Not Applicable Signed

~v-~ 6i2~

Date

, 20 b5

\\~3~J (~~or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State of Province of Illinois and employed by H.S.B. CT.

of I~jprtford,CT.

Haye ~pspectedthe components described in this Owners Report during the period to

~

,and state that to the best of my knowledge and belief, the O~nerhas perfrrded examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions

/~z-.,~.tcj Inspectors signature National Board, State, Province, and Endorsements Date 5/

,20

FORM NIS-2 OWNERS REPORT FOR REPAIRS OR REPLACEMENT As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 5/17/05 Name 4300 Winfield Rd. Warrenville, II. 60555 Sheet I of I Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, II.

Work Order No,. 00734954-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron Mechanical Maintenance Type Code Symbol Stamp Not Applicable Name Authorization No. Not Applicable 4450 N. German Church Road, Byron, II.

Expiration Date Not Applicable Address 4.

Identification of System

[DO] Diesel Oil 5.

(a) Applicable Construction Code Section III 1977 Edition, 5177 Addenda,N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacement Components 19 89 (c) Applicable ASME Section Xl Code Cases:

None 6.

Identification of Components Repaired or Replaced and Replacement Components Name of Component Name of Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built

RepaWed, Replaced, or Replacement ASME code; Stamped (Yesor No)

ReliefValve Crosby Valve N62578-00-0009 ETN: 1 DOO2OA N/A 1980 Replaced Yes Relief Valve Crosby Valve N62578-OO-O01 I N/A Cat ld# 1403705 ETN: 1DOO2OA 1980 Replacement Yes 7.

Description of Work Set point change,bench test and replace relief valve 8.

Test Conducted:

Hydrostatic 0 Pneumatic ~

Nominal Operating Pressure

~

Other 0 Pressure 33 psi Test Temp.

86 Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 8-1/2 in. x 11 in.,

(2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This form has been electronically generated.

FORM NIS-2 (Back) 9.

RemarksW/O# 00734954-01 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this REPLACEMENT conforms to the rules of the ASME Code,Section XI.

,sjdeorrsØacen~et*

Type Code Symbol Stamp Not Applicable Certificate of Authorization No.

Not Applicable Expiration Date Not Applicable Signed

~

Date_______

,20 o.j CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT.

of Hartford, CT have inspecjed ~Jiecomponents clescnbecl in this Owners Report during the period to

$4/,4~

, and state that to the best of my knowledge and belief, the O*inef has performed examinatidns~ndtaken corrective measures described in the Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from o~onnected with this inspection.

9 Commissions BOed, ~MeP,Cv~e,~EI~seae,ls Date,7~ 3/

,20 #5~

FORM NIS-2 OWNERS REPORT FOR REPAIRS OR REPLACEMENT As Required by the Provisions of the ASME Code Section Xl Date 05/18/05 Sheet I of I

Unit 01 Work Order No. 00734957-01 Test Conducted:

Hydrostatic 0 Pneumatic0 Nominal Operating Pressure Z Other 0 Pressure 33 psi Test Temp.

86 Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 8-1/2 in. x II in.,

(2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This form has been electronically generated.

1.

Owner Exelon Nuclear Name 4300 Winfield Rd. Warrenville, Il. 60555 Address 2.

Plant Byron Nuclear Power Station Name 4450 N. German Church Road, Byron, II.

Address Repair Organization, P.O. No., Job No.. etc.

3.

Work Performed by Byron Mechanical Maintenance Type Code Symbol Stamp Not Applicable Name Authorization No. Not Applicable 4450 N. German Church Road, Byron, II.

Expiration Date Not Applicable Address 4.

Identification of System

[DO] DIESEL OIL 5.

(a) Applicable Construction Code Section Ill 1977 Edition, S/77 Addenda,N/A (b) Applicable Edition of Section Xl Utilized for Repairs or Replacement Components 19 89 (c) Applicable ASME Section XI Code Cases:

None 6.

Identification of Components Repaired or Replaced and Replacement Components Code Case Name of Component Name of Manufacturer Manufacturer Serial No.

National Boerd No.

Other Identification Year Butt

Repaired, Replaced, or Replacement ASME Code; Stamped (Yes or No)

Valve Complete Crosby Valve S/N:

N62578-0O-0014 N/A ETN:I DOO2OC 1980 Replaced Yes Valve Complete Crosby Valve S/N:

N62578-OO-00I2 N/A ETN:IDOO2OC CAT lD# 1403705 1980 Replacement Yes 7.

8.

Description of Work REPLACE RELIEF VALVE WITH NEW SETPOINT CHANGED RELIEF VALVE

FORM NIS-2 (Back) 9.

Remarksw/o# 00734957-01 Ap~cabeMonutactur&s Data Reports to be attathed I

CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this REPLACEMENT conforms to the rules of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of Authorization No.

Not Applicable Expiration Date Not Applicable Signed

~

~

C,~7c~?

Date SJ3ci

,20 o~

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT.

of Hartford, CT have inspec~ted~e components described in this Owners Report during the period to

,and state that to the best of my knowledge and belief, the O~nefhasperformed examinatións and taken corrective measures described in the Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any ki arising from r conn ed with this inspection.

~

Commissions

/~L-/45~

hapec~rsSç.ix.

BneC Stae we~I~eesents Date,7~~~43/ 20,ç

DOCUMENT NO.:

2A REV. NO.:

1 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear 2.

3.

Name 4300 Wlnfield Road, Warrenville, IL Date 4/02/06 Sheet 1

of 1

Unit 01 Work Order No. 00782232-01 Repair Organization, P.O. No., Job No., etc.

Type Code Symbol Stamp Not Applicable Not Applicable Not Applicable 4.

Identification of System FP - FIRE PROTECTION section iii 1~f4 iaiiion

~i4

~aaenaa ~epiacementStrut 5.

(a)

Applicable Construction Code ASME Section Ill 1977 Edition, S/77 Addenda, 1644-8 Code Case (b) Applicable Edition of Section XI Used for Repair/Replacement Activity:

2001 Edltlon/2003 Addenda (c)

Section Xl Code Case(s)

None 6.

Identification of Components Name of Component Name of Manufacturer Manufacturer Serial No.

National Board No.

Other identification Year Built Corrected, Removed, or installed ASME Code Stamped (Yes or No)

SWAY STRUT ELCEN 2417 N/A EPN:1FP39025X FIG. 420N 1982 REMOVED Yes SWAY STRUT ANVIL PROD.

N/A N/A Cat.ld.:1406468 EPN:1 FP39025X 2005 INSTALLED Yes 7.

Description of Work REPLACE SWAY STRUT 1 FP39025X. REV.1

• WELD ON NEW END BRACKET THAT CAME WITH SWAY STRUT.

8.

Test Conducted:

Hydrostatic 0 Tr-3 Other ~

Pressure Pneumatic 0 n/a psi Nominal Operating Pressure 0 Exempt0 Test Temp.

n/a Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

Address Plant Byron Nuclear Power Station Name 4450 N. German Church Road, Byron, IL Address Work Performed by Byron Mechanical Maintenance Name 4450 N. German Church Road, Byron, IL Address Authorization No.

Expiration Date

FORM NIS-2 (Back) 9.

Remarks 00782232-01 Applicable Manufacturers Data tieports to oe auacnea CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of Authorization No.

Not Applicable Signed Scott Esposito

~

Date 06/30

, 20 06 Owners Designee, Title CERTiFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspected the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief,

{h~Ownerhas performed e~aminationsand taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes anywarranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions Inspectors Signature National Board, State Province, and Endorsements Date: ~

20 r2é

LDOCUMENT NO.:

3.2 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl Owner Exelon Nuclear Date 09/20/06 Name 4300 WinfIeld Road, Warrenville, IL Sheet Address Plant Byron Nuclear Power StatIon Name 4450 N. German Church Road, Byron, IL Address 3.

Work Performed by N P S & W VENTURE Name 36400 S. Essex Road, WIlmington, IL 60481 Unit 01 1

of 1

Work Order No. 00793278-01 Repair Organization, P.O. No., Job No., etc.

Type Code Symbol Stamp Not Applicable Authorization No.

Not Applicable Expiration Date Not Applicable 4.

Identification of System FP (FIRE PROTECTION) 5.

(a) Applicable Construction Code ASME Section III 1974 Edition, W75Addenda, None Code Case (b) Applicable Edition of Section Xl Used for Repair/Replacement Activity 2001 Edition / 2003 Addenda (c) Section Xl Code Case(s)

NONE 6.

Identification of Components Name of Component Name of Manufacturer Manufacturer Serial No.

VALVE, CHECK ANDERSON GREENWOOD ASME Code Stamped (Yes or No)

A3753 N/A 1FP345 1981 REMOVED YES VALVE, CHECK 6 (Refurbed)

ANDERSON GREENWOOD N25811 N/A 1FP345 19~1 t.

INSTALLED YES

~s

,,/i~D P~.

Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

• 1.

2.

Address 6

Nation al Board No.

Other Identification Corrected, Removed, or Installed Year Buift 7.

Description of Work REPLACE CHECK VALVE 1 FP345. ORIGINAL WELD NECK FLANGES AND BODY-TO-FLANGE BOLTING WERE RE-USED AND NOT REPLACED.

8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure D Other 0 Pressure 151 psi Exempt0 Test Temp.

68

FORM NIS-2 (Back) 9.

Remarks WORK ORDER 00793278-01 Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPUANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not ApplIcable Certificate of ~thorizationNo.

Not ApplIcable Signed qJ~~24 C ~4&AJt~AJe2I2J~ &~,A)~4Tz)fZ.

Date /~/~.o,20 06 Owj~ror Owners Designee, Title ~Jfl,,Jze/O CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued bythe National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have in9pecpd the components described in this Owners Report during the period to

,//,4?4~~

, and state that to the best of my knowledge and belief, the (5wner has performedex&ninations and taken corrective measures described in this Owners Report in accordance with the requirements of theASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions

,~t/~.~Lc4 Inspectors Signature National Board, State Province, and Endorsements Date:

~149. 0tt7

.20 06 (Final)

DOCUMENT NO.:

2A REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI Owner Exelon Nuclear Date 2/13/06 Name 4300_Winfleld Road, Warrenvllle, IL Sheet 1

of I

Address Byron Nuclear Power Station Unit 00 Name 4450_N. German Church Road, Byron, IL Work Order No. 00807090-01 Address Repair Organization. P.O. No., Job No., etc.

Performed by Byron Mechanical Type Code Symbol Stamp Not Applicable MaIntenance Name Authorization No.

Not Applicable N. German Church Road, Byron, IL Expiration Date Not Applicable Address Identification of System

[FP] Fire protection [1-FP-2-N5]

Applicable Construction Code ASME Section III 1974 Edition, S/75Addenda, N/A Code Case Applicable Edition of Section XI Used for Repair/ReplacementActivity:

2001 Edition/2003 Addenda*

Section Xl Code Case(s)

N/A Identification of Components ASME Corrected, Code National Removed, or Stamped of Name of Manufacturer Board Other Year installed (Yes or No)

Component Manufacturer Seilal No.

No.

Identification Built Hunter Corp.

242749, 3137, L03363 N/A ETN: OFPJ6A-4 FP-22-6 1934 U~emov NO DEG (2)

Southwest Fabricating 9298 N/A EN: OFPJ6A-4 FP-22-6 1979 Re ad mov NO Hunter Corp.

AU6N N/A EN: OFPJ6A-4 FP-22-6 emov NO Consolidated Power supply HT# U82949 N/A CAT ID; 24993 ETN: OFPJ6A-4 2005 Installled NO DEG (2)

Consolidated Power supply HT# P409A -

N/A CAT ID; 24615 ETN: OFPJ6A-4 2005 I

tallIed flS NO Consolidated Power supply HT# M064-49 N/A CAT ID; 24730 ETN: OFPJ6A-4 005 lnstallled 7.

Description of Work Replace section of 4 line no. OFPJ6A 8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure ~

Exempt0 Other 0 Pressure 145 psi Test Temp.

75

°F Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (I) size is 8Y2 in. x 11 in., (2) information in items I through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 (Back) 9.

Remarks 00807090-01 Applicable Manufacturers Data i~eportsto oe anacnea

• Note: Welds #3, 4, 5, 6 were fabricated prior to the 10-Year ISI Update (ASME Section XI 1989 ED). Welds

1. 2 and 7 were fabricated after the 10-Year ISI Update (ASME Section XI 2001 Ed/2003 Ad). Post

- Maintenance Testing performed to ASME Section XI 2001 Ed/2003 Ad).

CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of ~ti~thorizationNo.

Not Applicable Signed

~\\

~

~

~

Date 3/a

,20 t4~

Owner Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of IllInois and employed by HSB CT of Hartford, CT have insp~tedthe components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, tice ówner has performed examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from orconnected with this inspection.

Commissions

/2/-

ff9 inspectors Signature National Board, State Province, and EndOrSementS Date:

~

d/

,20

~

FORM NIS-2 OWNERS REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions ofthe ASME Code Section XI 1.

Owner Exelon Nuclear Date 11/11/05 Name 4300 Winfield Road, Warrenville, IL 60555 Sheet I

of Address 2.

Plant Byron Nuclear Power Station Unit 00 Name 4450_N. German Church Road~Byron~IL 61010 Work Order No. 00862599-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by

~ea~1~cal Type Code Symbol Stamp Not Applicable Name Authorization No.

Not Applicable 4450 N. German Church Road, Byron, IL 61010 Expiration Date Not Applicable Address 4.

IdentificatIon of System

[FPI Fire Protection 5.

(a) Applicable Construction Code Section Ill 19 74

EdItion, S/75 Addenda, N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacement Components 19 89 (c)Section XI Code Cases used, N-416-2 6.

Identification of Components Repaired or Replaced and Replacement Components Name of Component Name of Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built

Repaired, Replaced, or Replacement ASME Code Stamped (Yes or No) 6 Pipe Sch 40 SOUTHWEST FAB S/N: 8240 N/A ETN:OFPC2BA-6 MK# FP-14-4 1977 Replaced Yes 6 Pipe Sch4O Consolidated Pipeand Supply Heat Code:

X82519 N/A ETN:OFPC2BA-6 2004 Rep~ment No PIPE TO LUG WELDS HUNTERCORP N/A N/A ETN:OFPC2BA-6 M-1FP04025X 1983 Replaced No PIPE TO LUG WELDS EXELON CORP N/A N/A ETN:OFPC2BA-6 M-1FP04025X 2005 Replacement No 7.

Description of Work REPLACE PIPE SPOOL. REMOVE LUG FROM EXISTING PIPE AND INSTALL ON NEW PIPE.

8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure ~

Other 0 Pressure 147 psi Test Temp AMBIENT

°F Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 8V2 in. x 11 in., (2) information in items I through 6 on thisreport is includedon each sheet, and (3) each sheet is numbered and the numberof sheets is recorded at the top ofthis form.

FORM NIS-2 (Back) 9.

Remarks WO#00862599-0I Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this REPLACEMENT conform to the rules of the ASME Code,Section XI.

repair or replacement Type Code Symbol Stamp Not Applicable Certificate of Aut~tlorizati~)JsJo.

Not Applicable Signed

~

~) 4~1-~~

~.

CitrA Date Ø.2~

,20

~.

~

(~~r Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hapford, CT have in~pect~Ø the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, the bwner has performed exa~inationsand taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes anywarranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neitherthe Inspector nor his employer shall be liable in any manner for any personal injury or property ctarna~eor a loss of auy kind arising from orconnected with this inspection~--~-

Commissions

//E. //5-4 inspectors Signature Natlonai Board, State Province, and EndOrSementS Date:

JftH~5i2

,20 ______

FORM NIS-2 OWNERS REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 11/23/05 Name 4300 WinfleId Road, Warrenville, IL 60555 Sheet I

of Address 2.

Plant Byron NuclearPower StatIon Unit 00 Name 4450_N. German Church Road, Byron, IL 61010 Work Order No. 00862599-11 Address Repatr Organization. P.O. No., Job No., etc.

3.

Work Performed by Type Code Symbol Stamp Not Applicable Name Authorization No.

Not Applicable 4450_N. German Church Road, Byron, IL 61010 Expiration Date Not Applicable Address 4.

Identification of System

[FPI Fire Protection 5.

(a) Applicable Construction Code SectIon III 1974

Edition, S/75 Addenda, N/A Code Case (b) Applicable Edition of Section Xl Utilized for Repairs or Replacement Components 19 89 (c)

Section Xl Code Cases used, N-416-2 6.

Identification of Components Repaired or Replaced and Replacement Components Name of Component Name of Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built

Repaired, Replaced, or Replacement ASME Code Stamped (Yes or No) 6 P~e SOUTHWEST FAB S/N:

8237 N/A ETN: OFPC4A-6 MK#14-1 1977 Replaced YES 6 Pipe CONSOLIDATED POWER SUPPLY HT: X82519 CODE: B4YZ N/A ETh: OFPC4A-6 2005 Replacement NO PIPE TO LUG WELD HUNTERCORP N/A N/A ETN:OFPC4A-6 M-1FP04035X MK#2A 1977 Replaced NO PIPE TO LUG WELD EXELON CORP N/A N/A ETN:OFPC4A-6 M-1FP04035X 2005 Replacement NO 7.

Description of Work REPLACE PIPE SPOOL. REMOVE LUG AND REINSTALL ON NEW PIPE 8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure ~

Other 0 Pressure 147 psi Test Temp AMBIENT

°F Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 8/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top ofthis form.

FORM NIS-2 (Back) 9.

Remarks W0#00862599-1I Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this REPLACEMENT conform to the rules of the ASME Code,Section XI.

repair or replacement Type Code Symbol Stamp Not Applicable Certificate of A orization No.

Not Applicable Signed 4ç/_9~g,~(~(,C.,Q Tide Date V(~~

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued bythe National Board of Boiler and Pressure Vessel Inspectors and the State or Province of IllInois and employed by HSB CT of Hartford, CT have in~pe3tedthe components described in this Owners Report during the period

// ~ tsg to

~

, and state that to the best of my knowledge and belief, the er has performe6ex~minatlonsand taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

Bysigning this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neithertheJnspector nor his employer shall be liable in any manner for any personal kijury~orprupertydamage sk~ssafarrykind-ar1singirorrrorconnectedwith 1h~inspeetIon~~~

(~4~j~~

Commissions

/11 -/f~5

Inspectors Signature National Board, State Province, and Endorsements Date:

Je,. 30

,20

~76

9A REV. NO,:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl Name 4300 Winfleld Road, Warrenville, IL Date 04/21/06 Sheet 1

of 1

Unit 00 Work Order No. 00908440-01 Repair Organization, P.O. No., Job No., etc.

Type Code Symbol Stamp Not Applicable Not Applicable 4.

Identification of System IFPI Fire Protection 5.

(a)

Applicable Construction Code ASME Section III 1974 Edition, Sf75 Addenda, N/A Code Case (b)

Applicable Edition of Section Xl Used for Repair/Replacement Activity:

2001 Edition/2003 Addenda (c)

Section Xl Code Case(s)

NONE 6.

Identification of Components Name of Component Nameof Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built Corrected, Removed, or Installed ASME Code Stamped (Yes or No) 6 pipe sch.40 SOUTHWEST FAB S/N: 9074 N/A ETN:OFPJ9A-6 FP-25-1 1977 Removed YES 6 pipe sch.40 CONSOLIDATED POWER SUPPLY HT#: X82519 N/A Catuid: 24417-1 ETN:OFPJ9A-6 2006 Installed NO 6 PIPE ELBOW 90 DEGREE 3 ea.

SOUTHWEST FAB S/N: 9074 N/A ETN:OFPJ9A-6 FP-25-1 1977 Removed NO 6 PIPE ELBOW 9ODEGREE1ea.

SOUTHWEST FAB S/N: 9074 N/A ETN:OFPJ9A-6 1977 Removed N

6 PIPE ELBOW 45 DEGREE 1 ea.

SOUTHWEST FAB S/N: 9074 N/A ETN:OFPJ9A-6 FP-25-1 1977 Removed NO 6 PIPE ELBOW 90 DEGREE 4 ea.

CONSOLIDATED POWER SUPPLY HT#: N862B N/A Cat/id: 2491 3-1 ETN:OFPJ9A-6 2005 Installed NO 6 PIPE ELBOW 45 DEGREE 1 ea.

CHICAGO BRIDGE & IRON HT#: FH6W N/A Catiid: 2491 4-1 ETN:OFPJ9A-6 1993 Installed NO Pipe support saddle-lug weld HUNTER CORP HT. # 4(32087 N/A ETN:OFPJ9A-6 M-1 FP06042X 1980 Removed NO Pipe support saddle-lug weld Exelon N/A N/A ETN:OFPJ9A 6 M-lFPO6o42x 2006 Installed NO 7.

Description of Work REPLACE PIPE SPOOL AND FITTINGS. REMOVE PIPE SUPPORT SADDLE FROM REMOVED PIPE AND REINSTALL ON INSTALLED PIPE.

8.

Test Conducted:

Hydrostatic 0 VT-3 Other ~

Pressure Pneumatic 0 170 psi Nominal Operating Pressure ~

Exempt 0 Test Temp.

72.5 Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2in. x 11 In., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

1.

Owner Exelon Nuclear 2.

3.

Address Plant Byron Nuclear Power Station Name 4450 N. German Church Road, Byron, IL Address Work Performed by Byron Mechanical Maintenance Name 4450 N. German Church Road, Byron, IL Address Authorization No.

Expiration Date Not Applicable

FORM NIS-2 (Back) 9.

Remarks W/O 00908440-01 Applicable Manufacturers Dafa iiepons io oe auacnea CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of Aut~orizationNo.

Not Applicable Signed

~

<~J~9~C~4?.

Date

~

,20 e~1 Owne or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspe5ted the components described in this Owners Report during the period to

~

, and state that to the best 9f my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owners Report in accordance with the requireme.nts of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injuryor property damage or a loss of any kind arising from or connected with this inspection.

Commissions

,//- /15.4 inspectorsSignatuFe National Board, State Province, and Endorsements Date:

~~$,/7

,20

~

I DOCUMENT NO.:

8A REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xi 1.

Owner Exelon Nuclear Date 04/21/06 Name 4300 Winfield Road, Warrenville, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 00 Name 4450 N. German Church Road, Byron, IL Work Order No. 00911617-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron Mechanical Type Code Symbol Stamp Not Applicable Maintenance Name Authorization No.

Not Applicable 4450 N. German Church Road, Byron, IL Expiration Date Not Applicable Address 4.

Identification of System

[FP] Fire Protection 5.

(a)

Applicable Construction Code ASME Section III 1974 Edition, Sf75 Addenda, N/A Code Case (b)

Applicable Edition of Section Xl Used for Repair/Replacement Activity:

2001 Editlon/2003 Addenda (c)

Section XI Code Case(s)

NONE 6.

Identification of Components ASME Corrected, Code National Removed, or Stamped Name of Name of Manufacturer Board Other Year Installed (Yes orNo)

Component Manufacturer Serial No.

No.

Identification Built 6 pipe sch.40 SOUTHWEST FAB S/N: 9075 N/A ETN:OFPJ9A-6 FP-25-2 1977 Removed Yes 6 pipe sch.40 CONSOLIDATED POWER SUPPLY HT # X82519 N/A Cat/id: 2441 7-1 ETN:OFPJ9A-6 2006 Installed NO 6 PIPE ELBOW 90 DEGREE SOUTHWEST FAB S/N: 9075 N/A ETN:OFPJ9A-6 FP-25-2 1977 Removed Yes 6 PIPE ELBOW 90 DEGREE CONSOLIDATED POWER SUPPLY HT #: N862B N/A ETN:OFPJ9A-6 Cat_Id 24913 2005 Installed NO 4 Pipe Stanchion BARR-SAUNDERS 164884 N/A ETN:OFPJ9A-6 M-2FP11001A 1982 Removed NO 4 Pipe Stanchion CHICAGO TUBE

& IRON HT #: L21434 LOT: 1F4056 N/A ETN:OFPJ9A-6 M-2FP11001A 1992 Installed NO 7.

Description of Work REPLACE PIPE SPOOL AND FITTINGS. REMOVE PIPE SUPPORT STEEL (lT#1)

OF2FP1 1001 A FROM REMOVED PIPE AND REPLACE WITH NEW.

8.

Test Conducted:

Hydrostatic 0 VT-3 Other ~

Pressure Pneumatic 0 170 psi Nominal Operating Pressure ~

Exempt 0 Test Temp.

72.5 Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 (Back) 9.

Remarks Work Order No. 00911617-01 Applicable Manufacturers Data deports to De attacflect CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of AutI~orizatio~J~Jo.

Not Applicable Signed

~

~

Date

,20 C 4 or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of

~IarL~ord, CT have in,pe9ted the components described in this Owners Report during the period to

.$~#,4~1

, and state that to the best of my knowledge and belief, th~O~nerhas pertorme~e~minationsand taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injuryor property damage or a loss of any kind arising from orconnected with this inspection.

Commissions

/fZ~/I~

Inspectors Signature National Board, State Province, and Endorsements Date:

/9

,20 _______

DOCU MENT NO.:

4.1 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions ofthe ASME Code Section Xl Owner Exelon Nuclear Date 9/17/06 Name 4300 Wlnfleld Road, Warrenville, IL Sheet 1

of 1

Address Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00634888-01 Address Repair Organization, P.O. No., Job No., etc.

Wor 131 k Performed by NWS Technologies LLC Type Code Symbol Stamp VR, NR Name Authorization No.

632, 81 Venture BIvd, Spartanburg, SC 29306 Expiration Date 4/3/09, 4/9/09 Address Iden (a)

(b) tification of System MS-MAIN STEAM -1MSO13D Applicable Construction Code ASME Section III 1974 Edition, N/A Addenda, NONE Code Case Applicable Edition of Section XI Used for Repair/Replacement Activity 2001 Edition / 2003 Addenda (C)

Iden Section XI Code Case(s)

NONE tification of Components ASME Corrected, Code Nationai Removed, or Stamped of Nameof Manufacturer Board Othr Year Instailed (Yes orNo) t Manufacturer Serial No.

No.

Identification Built VALVE DRESSER IND. GJE/AAF45 N/A 101 1977 REMOVED NO VALVE DRESSER IND.

ADG27 N/A 2001 INSTALLED NO 7.

Description of Work MATERIAL - SB-637 INCONEL X-750 MATERIAL PER EC 79123 8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic 0 Nominal Operating Pressure 0 Exempt ~

N/A psi Test Temp.

N/A Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

REFURBISH ThE VALVE & TEST AT VENDOR, INSTALL NEW DISC (CAT ID 16492)

FORM NIS-2 (Back) 9.

Remarks WO# 00634888-01 Applicable Manufacturers Data Reports tO be~attchéd~

CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of A horization No.

Not Applicable Signed

~

Date

, 20 06 or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have irjspec)ed the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, tfe Owner has performed examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neitherthe Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions

,i1-i~e.c1 Inspectors Signature National Board, State Province, and Endorsements Date:

441,

~

, 20 06 (Final)

~f_

..~.~,

~

~ui auu~

1. Work performed by:

P-JWS TechnologIes, LLC Purchase Order# 00415135 131 Venture Boulevard, Spartanbui~,SC 29306

5. a: Repaired pressure relief device:

b: Name of manufacturer Consolidated I Dresser C: Identifying nos.

3707R

n/a steam 6

77 (typs)

(N5S)

(leivics)

(slz.)

d: Construction Code:

ASME SeCtion III 1974 n/a n/a 2

(r~ms1i.odoi Milan)

(edlilon)

(addend.)

(Cods Cases(s))

(Gods Class)

6. ASME Code Section Xl applicable for inseMce inspection:

7. ASME Code Section XI used for repairs, replacements:

8. ConstructIon Code used for repairs, replacements:

9. DesIgn reeponslbllltles n/a 2001 2003 n/a (sdNlan) 2001 (addsnda) 2003 (CodsCase(s))

n/a 1974

~ddsnds)

Na (CodeCassM n/a

(.dllon)

(addsnds)

(CodsCase(s))

10. OpenIng pressure:

1235 psig Set-pressure adjustment made at NWS Technologies, LLC

11. DescrIption of work (lnckide nsms and ldsntWylag numbsr of ruplas.nisr~p.r~): Disassembled, cleaned, Inspected.

lapped nozzle & passivated seat area~.Installed antl-gulde-moverfleflt modification EC#340678, installed pre-oxldized X750 disc, assembled. Cerffl~edset~pressureand seat tightness üutng Steam..

12. Remarks: New disc s/n ADG27Installed. NWS Traveler#06-237.

CERTIFICATE OF COMPUANCE I,

Brad M. Schulte certify that to the best of my knowledge and belief the statements made in this report are correctand the repair, modification or.replacement of the pressure relief devices described above conforms to Section XI of theASME Code and the National Board Inspection Code WVRn and NW rules.

National Board Certificate of AUthorizatiOn No.

632 to use the WVRU stamp expires Apr83, 2009 National Board Certificate ofAuthorizétlon No.

81 to us~~e,~RJta~p expires

~..pru 9,2009.

gJri/t~

NWS Technologies, LLC

~ji~ce~resicient Rspafr Organ~atlon Authoi~.d,.pcssentatlvs This CERTIFICATE OFINSPECTION I,

Charles F. Toeg.I Jr.

holding avalid commIssion issued byThe National Board of BoIler and Pressure Vessel Inspectors and certificate of competency issued by the jurisdiction of North Carolina and employed by Hartford St..m Boiler of CT of Hartford, CT have inspected the repair, modification or replacement described in this report on /7~P~

~3~and state that to the best of my knowledge and belief, this repair modification or replacement has been completed In accordance with Section Xl of the of the ASME Code and the National Board Inspection Code yRTM and NWrules.

By signing this certificate, neitherthe undersigned nor my employer makes any warranty, expressed or implied, concerningthis repair, modification or replacement described in this report Futhermore, neither theundersigned nor my emplo~ershaN be liable in any mannerfor any personal injury, property damage orloss of any kind FORM NVR-1 REPORT OF REPAIR ~

REPLACEMENT ~I OF NUCLEAR PRESSURE REUEF DEVICES wo ~o~~-ei

2. Work performed for ExelonCorporation, Byron Nuclear Station 3/4. Owner-name, address andidentification of nuclearpower plant Exelon Corporation~

Byron Nuclear StatIon 4450 N. German Church Road Byron, IL. 61010 Main SteamSafety Valve BR09893 (mWs S*~

using Steam I

DOCUMENT NO.:

4.1 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 9/17/06 Name 4300 Wlnfield Road, Warrenville, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00634890-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by NWS Technologies LLC Type Code Symbol Stamp VR, NR Name Authorization No.

632, 81 131 Venture BIvd, Spartanburg, SC 29306 Expiration Date 4/3/09, 4/9/09 Address 4.

Identification of System MAIN STEAM (MS]

5.

(a) Applicable Construction Code ASME Section III 1974 Edition, N/A Addenda, NONE Code Case (b) Applicable Edition of Section Xl Used for Repair/Replacement Activity 2001 Edition / 2003 Addenda (C)

Section Xl Code Case(s)

NONE 6.

Identification of Components ASME Corrected, Code National Removed, or Stamped Name of Name of Manufacturer Board Other Year Installed (Yesor No)

Component Manufacturer Serial No.

No.

Identification Buitt DISC, VALVE DRESSER IND.

HT1G2411

~1B 1980 REMOVED NO DISC, VALVE DRESSER IND.

~~87 N/A 2001 INSTALLED NO 7.

Description of Work X-750 PER EC 79123.

REFURBISH ThE VLV & TEST AT VENDOR. INSTALL NEW DISC (CID 16492) MATL-SB637INCONEL 8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic 0 Nominal Operating Pressure 0 n/a psi Test Temp.

n/a Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

Exempt ~

FORM NIS-2 (Back) 9.

Remarks WO# 00634890-01 Applicable Manufacturers Data tiepons to oe auacneo CERTiFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of k~~thorization No.

Not Applicable Signed

~

Sjvct__

~

~

~

Date

~/-& (

20 06

(~or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspected the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, the Owner has perrormedexaminations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions Inspectors Signature National Board, State Province, and Endorsements Date:

,2006 (FINAL)

r

~

~~**

oo,

~o i

~uu~

FORM NVR-1 REPORT OF REPAIR ~

REPLACEMENT ~

OF NUCLEAR PRESSURE RELIEF DEVICES wo 0p~3Lj~2~j~1

(

1.Work performed by: NWS Technologies, LLC Purchase OrderS 00415135 131 Venture Boulevard, Spartanburg, SC 29306

2. Work performed for Exelon Corporation, Byron Nuclear Station 3/4. Owner - name, address and identification of nuclear power plant Exelon Corporation,

~yron Nuclear Station 4450 N. German Church Road Byron, IL 61010

5. a: Repaired pressure relief device:

Mali Steam Safety Valve b: Name of manufacturec ConsolidatedI Dresser C: Identifying nos.

3707R BR09591 n/a steam 6

77 (type)

(rr~rsSIN)

(NBS)

(service)

(size)

(yr.bullt) d: Construction Coder ASME Section III 1974 nia fl/a 2

(name/uctlo&divlslon)

(edItion)

(addenda)

(Cods Cases(s))

(Code Class)

6. ASME Code Section XI applicable for inservice inspectIon:

2001 2003 n/a (ed~lon)

(addenda)

(Cods Case(s))

7. ASME Code Section XI used for repairs, replacements:

2001 2003 n/a (edition)

(addenda)

(Cods Case(s))

8. Construction Code used for repass, replacements:

1974 n/a n/a (edison)

(addenda)

(Code Case(s))

9. Design responsibilities:

n/a

10. 9penlng pressure:

1235 pslg Set-pressure adjustment made at NWSTechnologies, LLC using steam

11. DescriptIon of work (~dudsname and idsnU~yki9number o( raplacement parts)

Disassembled, cleaned, lnspected~

lapped nozzle & passivated seatarea, Installed anti-guide-movement modification EC#3406~Installed anti-vibration modification EC#339376, Installed pre-oxldized X750 disc, assembled Certified set-pressure and seat tightness using steam.

12. Remarks: New disc s/n ADG37 Installed. NWS Traveler506-236.

CERTIFICATE OF COMPUANCE I,

Brad M. Schulte certify that to the best of my knowledge and beliefthe statements made in this report are correct and the repair~modification or replacement of the pressure reliefdevices described above conforms to Section Xl of theASME Code and the National Board Inspection Code NVRW and 0NR rules.

National Board Certificate of Authorization No.

832 to use the UVRNstamp expires April 3, 2009.

National Board Certificate of Authorization No.

81 to us th MNR~stamp expires April 9, 2009.

NWS Technologies, tiC

1JA)cT Vice President Dale R.p.lr Org*n~atlon ad representative This CERTIFICATE OF INSPECTION I,

Charles F. Toegel Jr.

holding a valid commission issued by The National Board of Boiler and Pressure Vessel Inspectors and certificateof competency issued by the jurisdiction of North Carolina and employed by Hartford Steam Boiler of CT of Hartford, CT have inspected the repair, modification or replacement described in this report on

,7 ç~p~

~

and state that to the bestof my knowledge and belief, this repair, modification or replacement has been completed in accordance with Section XI of the of theASME Code and the National Board Inspection Code VRM and NR rules.

By signing this certificate, neither the undersigned nor my employer makes any warranty, expressed or implied.

concerning this repaw, modification or replacement descnbed in this report Futhermore. neitherthe undersigned nor my employer shall be liable In any manner for any personal injury, property damage orlossof any kind arising from or connededj~ththis ins~ecJon.

NB 58462, A, N, 1 HC# 1073 Sio

~

faif~Vv~~rtk,n IMR 1ln~i~nA~r~mi.nf~

jtnis~ietinn.&~noj

F DOCUMENT NO.:

4.1 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Date 9/17/06 Name 4300 Winfield Road, Warrenvllle, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00645649-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by NWS Technologies LLC Type Code Symbol Stamp VR, NR Name Authorization No.

632, 81 131 Venture Blvd, Spartanburg, SC 29306 Expiration Date 4/3/09, 4/9/09 Address 4.

Identification of System MaIn Steam [MS]

5.

(a)

Applicable Construction Code ASME Section III 1974 Edition, N/A Addenda, NONE Code Case (b)

Applicable Edition, of Section XI Used for Repair/Replacement Activity 2001 Edition / 2003 Addenda (c)

Section Xl Code Case(s)

NONE 6.

Identification of Components ASME Corrected, Code National Removed, or Stamped Name of Name of Manufacturer Board Other Year Installed (Yes or No)

Component Manufacturer Serial No.

No.

Identification Built DISC, VALVE DRESSER IND.

ADG4O N/A ES~~:

B 9309 1981 REMOVED NO DISC, VALVE DRESSER IND.

HT:68787 N/A 2001 INSTALLED NO 7.

Description of Work X-750 PER EC 79123 REFURBISH ThE VLV & TEST ATVENDOR. INSTALL NEW DISC (CID 16492) MATL-SB637 INCONEL 8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic 0 N/A psi Nominal Operating Pressure 0 Exempt ~

Test Temp.

N/A Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

4 FORM NIS-2 (Back) 9.

Remarks WO# 00645649-01 Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of A~horizationNo.

Not Applicable Signed

,~.

j~..

Date

, 20 06

(~~orOwners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding avalid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have in~pect9dthe components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, the wner has performedexaminations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspectornor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage~or loss of any kind arising from or connected with this inspection.

Commissions _________________________

Inspectors Signature National Board, State Province, and Endorsements Date:

-~

, 20 06 (Final)

__-I P.,

FORM NVR-1 REPORT OF REPAIR 2 REPLACEMENT ~1 OF NUCLEAR PRESSURE RELIEF DEVICES

~

00

1. Work performed by:

NWS Technologies LL.C Purcttase OrderS 004151 35 131 Venture Boulevard, $partanburg, SC 29306

2. Work performed for Exebn Co!pocatiOn, Byron Nuclear Station 3/4. Owner - name, address and identifIcation of nuclearpower plant Exelon Corporation, Byron Nuclear Station 4460 N. German Church Road Byron, IL 61010

5. a: Repaired pressure relief device:

Main Steam Salety Valve b: Name of manufacturec Consolidated / Dresser C: Identifying nos.

3707R BR09609 n/a steam 6

(N85)

(service)

(s~s) 77 (yr.bullt)

(type)

(mSs SIN) d: Construction Code:

ASME Section III 1974

- (

6. ASME Code Section Xl apØcable for inservice inspection:

ri/a n/a

(Cods Came(s))

2001 2003

)

2 (Code ~

n/a (CodsCase(s))

7. ASME Code Section Xl used for repairs, replacements:

2001 2003 (edlion)

(addenda) n/a (Cod. Case(s))

8. Conslruction Code used for repairs, replacements:

1974 n/a

(.dtilon)

(addsnda)

n/a (Cods case(s))

9. DesIgn responsibilities:

n/a

10. OpenIng pressure:

1175~eig Set-pressurea~ustmentmade at NWS Technologle~LLC using steam

~

11. DescrIption of work Ondudename and Idel~ingnui~ro(r.plscsmsnt pelts):

Disassembled, cleaned, inipectec, lapped nozzle & passivated seatareajnstailed anti-guide-movementmodification EC*340678, Installed anti-vibration modification EC#339376, installed ire-oxidized )(750 disc, assembled Certified sat-pressure d seat ssusI~steam

12. Remarks: New disc s/n ADG3O histeH~N~Traveler506-238.

CERTIFICATE OF COMPLIANCE I,

Brad M. Schulte certify that to the best of my knowledge and beliefthe statements made In this repórUare correctand the repair, modification orreplacement of the pressure relief devices described above conforms to Section XI of the ASME Code and the National Board Inspection Code KVR~and NR rules.

National Board Certificate of Authorization No.

632 to usethe VRstamp expires April 3,2009.

National Board Certificate of Authorization No.

81 to u~~e expires AprIl 9, 2009.

3/ilJoi, NWS Tecbnolog3ge, LLC

/14 Vice President Date Repafr Oi~anIzatian Authorizedrepresentative Title CERTIFICATE OF INSPECTION 1,

Charles F. To.91 Jr.

holding a valid commission issued by The National Board ofBoiler and Pressure Vessel Inspectors and certificate of competency issued by thejurisdiction of North Carolina and employed by Hartford Steam BoilerofCT

of Hartford, CT have inspected the repair, modification or replacement described in this report on /7~Pr..~and state that to the bestof my knowledge and belief, this repair, modification or replacementhas been completed in accordance with Section XI of the of the ASME Code and the National Board Inspection Code VR and NR rules.

By signing this certificate, neither the undersigned normy employer makes any warranty, expressed orimplied.

concirnin~this repair, mOdtfl~abon brrepiacemetttdescribed in this report Futherrno~neitherthe undersigned nor my employer shall be liable in any r~iannerfor any pe_rsonalinjury, property damage or Loss of any kind I

~1

I DOCUMENT NO.:

REV. NO.:

FORM NIS-2 OWNERS REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section Xi 1.

Owner Exelon Nuclear Date 09/18/06 Name 4300WInfield Road, Warrenville, IL Sheet Address Plant Byron Nuclear Power Station Name 4450 N. German Church Road, Byron, IL Address 1

of 1

Repair OrganIzation~P.O. No., Job No.. e*c.

Type Code S)mbol Stamp Not Applicable Authorization No.

Not Applicable Expiration Date Not~ppiIcable 4.

IdentIfication of System MAIN STEAM 5.

(a) Applicable Construction Code ASME Section III 1974 EdItion, S74 Addenda, 1644 Rev. 7, 1651, 1682, 1683, 1685, 1686, 1728, 1729, 1734, N-108, N-ISO Code Case (b) Applicable EdItion of Section Xl Used for Repair/Replacement ActIvity 2001.

Edition / 2003 Addenda (C) Section Xl Code Case(s)

NONE 6.

identification of Components Name of

~

Component Name of Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built Corrected, Removed, or Installed ASME Code Stamped (Yes or No)

PIVOT PIN GRINNELL N/A N/A 1MS08007S2 N/A Removed NO TAPERED PIN ANVIL N/A N/A CAT ID 1396339 N/A Installed NO 8.

Test Conducted:

HydrostatIc 0 VT-3 Pneumatic 0 Nominal Operating Pressure 0 Exempt 0 TestTemp.

Note: Supplemental sheets inform of lists, sketches, ordrawings maybe used, provided (1) size is 81/2 in. x 11 in., (2)

Information In items 1 through 6 on this report is included on each sheet, and (3) each sheet Is numbered and the number of sheets is recorded at the top of this form.

2.

3.

Work Performed by UnIt 01 N P S & W VENTURE Name 36400 S. Essex Road. WIlminaton. IL 60481 Work Order No. 731035-01 Address a

7.

Description of Work REPLACED PIVOT PIN WITH TAPERED PIN Other ~

Pressure psi

FORM NIS-2 (Back) 9.

Remarks WO 731035-01 Applicable Manufacturers Data Reports to be attached CERTIFiCATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of Authorization No.

Not Applicable Signed Date 9-ZG

,2006 Owner a Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have ins ed the components described in this Owners Report during the period to

~

, and state that to the best of my knowledge and belief, the ner has perform examinations and taken corrective measures described In this Owners Report in accordance with the requirements of theASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described inthis Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any mannerfor any personal Injury or property dthnage or a loss of any kind arising from or connected with this inspection.

Commissions JI1JI~54 lnspectocs Signature National Board, State Province, and Endorsements Date:

,2006 (Final)

DOCUMENT NO.:

6.0 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI Exelon Nuclear Date Name Wlnfield Road, Warrenville, IL Sheet 1

of 1

Address Byron Nuclear Power Station Unit 01 Name N. German Church Road, Byron, IL Work Order No. 00792236-01 Address Repair Organization, P.O. No., Job No., etc.

Performed by N P S & W VENTURE Type Code Symbol Stamp Not Applicable Name Authorization No.

Not Applicable S. Essex Road, Wilmington, IL 60481 Expiration Date Not Applicable Address Identification of System REACTOR COOLANT [RC]

Applicable Construction Code ASME Section III 1974 Edition, S74 Addenda, NONE Code Case Applicable Edition of Section Xl Used for Repair/Replacement Activity 2001 Edition / 2003 Addenda Section Xl Code Case(s)

NONE Identification of Components ASME Corrected, Code National Removed, or Stamped of Name of Manufacturer Board Other Year Installed (Yes orNo)

Component Manufacturer Serial No.

No.

Identification Built COOLER PERFEX DIV.

875201-2 s,!8~~io 1976 REMOVED YES COOLER PERFEX DIV 900401-1 5960 1978 INSTALLED YES COOLER IONICS INC.

7512/13-12 412 1976 REMOVED YES COOLER IONICS INC.

8062/63-2 529 si~~~i 1978 INSTALLED YES Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

7.

Description of Work Motor Assembly Replace 1 C Reactor Coolant Pump Motor Assembly3S-84P740 with Refurbished 4S-84P741. Motor Assemblies include upper and lower oil coolers.

8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure Exempt 0 Other D Pressure 132 psi Test Temp.

75

FORM NIS-2 (Back) 9.

Remarks Work Order 00792236-01 Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of AutI~orizationNo.

Not Applicable Signed

~

~

~

Date IIJ~3

,20 06

~or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued bythe National Board of Boiler and Pressure Vessel Inspectors and the State or Province of IllInois and employed by HSB CT of Hartford, CT have inspected the components described in this Owners Report during the period

~

to

, and state that to the best of my knowledge and belief, tice Owner has performed examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage ora loss of any kind arising from or connected with this inspection.

Commissions _____________________

Inspectors Signature National Board, State Province, and Endorsements Date:

~

/3

,20 06 (Final)

FORM NIS-2 OWNERS REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section Xl Owner Exelon Nuclear Date 3/13/06 Name Winfleld Road, Warrenville, IL 60555 Sheet 1

of 4

Address Byron Nuclear Power Station Unit 00 Name N. German Church Road, Byron, IL 61010 Purchase Order No. 00083172 Release 00002 Address Repair Organization, P.O. No., Job No., etc.

Performed by Westinghouse Electric Type Code Symbol Stamp Not Applicable Name Authorization No.

Not Applicable Box 355 Pittsburgh PA 15230-0355 Expiration Date Not ApplIcable Address Identification of System Reactor Coolant [RC] - Spare Reactor Coolant Pump Motor Oil Coolers W76 Upper Oil Cooler Applicable Construction Code Section III 1974 Edition, S74

Addenda, None Code Case Applicable Edition of Section Xi Utilized for Repairs or Replacement Components 2001 Ed/2003 Ad Section Xl Code Cases used, None Identification of Components Repaired or Replaced and Replacement Components ASME Corrected, Code National Removed, or Stamped of Name of Manufacturer Board Other Year Installed (Yes or No)

Component Manufacturer Serial No.

No.

Identification Built Cooler Top Perfex Division Studs (12) n/a n/a S/N 900401-1 1978 Removed No Cooler Top Nova Machine Studs (12)

Products HT: 230111 HTCode: 86E n/a S/N 900401-1 2005 I

lied nsta No Cooler Btm Perfex Division (24) n/a n/a S/N 900401-1 1978 Removed No Cooler Btm Nova Machine (24)

Products HT: 7220464 HT Code: 86E n/a S/N 900401-1 2005 Installed No Upper Oil Cooler Top End Cover Nuts (24)

Upper Oil Cooler Top End Cover Nuts (24)

Upper Oil Cooler Btm End Cover Studs (12)

Upper Oil Cooler Btm End Cover Studs (12)

Perfex Division Nova Machine Products Perfex Division Nova Machine Products n/a HT:

HTC 7220464 ode: 86E n/a HI: 23011 HTCode: 86E n/a n/a n/a n/a S/N 900401-1 S/N 900401-1 S/N 900401-1 S/N 900401-1 1978 2005 1978 2005 Removed Installed Removed Installed No No No No 7.

Description of Work S/N 8062/63-2 for Spare Reactor Coolant Pump Motor S/N 4S-84P741.

Replace Bolting on Upper Oil Cooler S/N 900401-1 and Lower Oil Cooler 8.

Test Conducted:

Hydrostatic 0 N/A Other 0 Pneumatic 0 Nominal Operating Pressure 0 Exempt 0 Pressure N/A psi Test Temp N/A Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2in. x 11 in., (2) information in items I through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 (Back) 9.

Remarks Purchase Order No. 00083172 Release 00002 Applicable Manufacturers Data Heports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of Aujhorization No.

Not Applicable Signed

~~r

~

Date

~

,20 04, Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspected the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, tfce ~iwnerhas perform~examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner forany personal

~uryorpropertyd~aeora loss of any kind arising from or connected with this inspection.

Commissions

~/..

~~t54 NationalBoard, State Province, and Endorsements Date:

________,20

~

FORM NIS-2 SUPPLEMENTAL SHEET Exelon Nuclear Date 03/13/06 Name 4300 Winfield Road, Warrenville, IL 60555 Sheet Address Byron Nuclear Power Station Unit 00 Name 4450 N. German Church Road, Byron, IL 61010 Address Work Performed by Westinghouse Electric Name P0 Box 355 Pittsburgh PA 15230-0355 Address 2

of 4

Type Code Symbol Stamp Not Applicable Authorization No.

Not Applicable Expiration Date Not Applicable 4.

Identification of System Reactor Coolant [RCJ - Spare Reactor Coolant Pump Motor Oil Coolers W76 Upper Oil Cooler 5.

(a)

Applicable Construction Code SectIon III 1974

Edition, S74

Addenda, None Code Case (b)

Applicable Edition of Section Xl Utilized for Repairs or Replacement Components 2001 Ed/2003 Ad (C)

Section Xl Code Cases used, None 6.

Identification of Components Repaired or Replaced and Replacement Components ASME Corrected, Code National Removed, or Stamped Nameof Name of Manufacturer Board Other Year Installed (Yes or No)

Component Manufacturer Serial No.

No.

Identification Built Upper Oil Cir Top Sta.

Flange Studs (8)

Perfex Division n/a n/a S/N 900401-1 1978 Removed No Upper Oil Clr Top Sta.

Flange Studs (8)

Nova Machine Products HI: 230111 HT Code: 86E n/a S/N 900401-1 2005 Installed No Upper Oil CIr Top Sta.

Flange Studs for Drip Pan (4)

Chicago Tube &

Iron HI: 122Z245 Code: LIDE n/a S/N 900401-1 1981 Removed No UpperOil CIrTop Sta.

Flange Studs for Drip Pan (4)

Nova Machine Products HT: 230111 Lot: 50046080 n/a S/N 900401-1 2005 Installed No UpperOil CIt Btm Floating Flange Studs (12)

Perfex Division n/a n/a S/N 900401.1 1978 Removed No Upper Oil Clr Btm Floating Nova Machine Flange Studs (12)

Products HT: 230111 HT Code: 86E n/a S/N 900401-1 2005 Installed

~

No Upper Oil Cir Btm Floating JPerfex Division Flange Nuts (24)

UpperOil CIr Btm Floating Nova Machine n/a HI 7220464 n/a n/a S/N 900401-1 S/N 9004011 1976 2005 Removed Installed No No Flange Nuts (24)

Products HT Code: 86E UpperOil CIrlop Sta.

Flange Nuts (24)

Upper Oil Cit Top Sta.

Flange Nuts forDrip Pan (4)

Upper Oil Clr Top Sta.

Flange Nuts (28)

Perfex Division Chicago lube &

Iron Nova Machine Products n/a HI: 8867040 Code: LICC HI:

HI C 7220464 ode: 86E n/a n/a n/a S/N 900401-1 f~,1J.123 S/N 900401-1 S/N 900401.1 1978 1981 2004 Removed Removed Installed No No No 1.

Owner 2.

Plant 3.

Purchase Order No. 00083172 Release 00002 Repair Organization, P.O. No., Job No., etc.

FORM NIS-2 SUPPLEMENTAL SHEET 1.

Owner Exelon Nuclear Name 4300 Winfleld Road, Warrenvllle, IL 60555 2.

Plant Byron Nuclear Power Station 4.

Identification of System 3

of 4

Type Code Symbol Stamp Not ApplIcable Authorization No.

Not Applicable Expiration Date Not Applicable W76 Upper Oil Cooler 5.

(a) Applicable Construction Code Section III 1974

Edition, S74

Addenda, None Code Case (b) Applicable Edition of Section Xl Utilized for Repairs or Replacement Components 2001 Ed/2003 Ad (c)

Section XI Code Cases used, None 6.

Identification of Components Repaired or Replaced and Replacement Components Name of Component Name of Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built Corrected, Removed, or Installed ASME Code Stamped (Yes or No)

~

Upper Oil Clr Mounting Bracket Support Bolts(2)

Perfex Division n/a n/a S/N 900401-1 1978 Removed No Upper Oil Cir Mounting Bracket Support Bolts (2)

Nova Machine Products HT: US Y87951 Code: R563 n/a S/N 900401-1 2005 Installed No Upper Oil CIr Sliding Support Studs (2)

Perfex Division n/a n/a S/N 900401-1 1978 Removed No Upper Oil CIr Sliding Support Stud (2)

Nova Machine Products HI: 54678 Code: R564 n/a

~~~900401-1 2005 Installed No Upper Oil CIr Sliding Support Nuts (2)

Perfex Division n/a n/a S/N 900401-1 1978 Removed No Upper Oil CIt Sliding Support Nuts (2)

Nova Machine Products HI: 7201928 Code: VAR n/a S/N 900401-1 2005 Installed No Upper Oil CIr Sliding Support Jam Nuts (2)

Perfex Division n/a n/a S/N 900401-1 1978 Removed No Upper Oil CIt Sliding Support Jam Nuts (2)

Nova Machine Products HI: 7201928 Code: R565 n/a S/N 900401-1 2005 Installed No Address Date 3/13/06 Sheet Unit 00 3.

Name 4450 N. German Church Road, Byron, IL 61010 Address Work Performed by Westinghouse Electric Name P0 Box ~55Pittsburgh PA 15230-0355 Address Purchase Order No. 00083172 Release 00002 Repair Organization, P.O. No., Job No., etc.

Reactor Coolant [RC] - Spare Reactor Coolant Pump Motor Oil Coolers

FORM NIS-2 SUPPLEMENTAL SHEET Sheet 4

of 4

Type Code Symbol Stamp Not Applicable Authorization No.

Not Applicable Expiration Date Not Applicable W76 Upper Oil Cooler 5.

(a)

Applicable Construction Code SectIon III 1974

Edition, S74

Addenda, None Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacement Components 2001 Ed/2003 Ad (c)

Section XI Code Cases used, None 6.

Identification of Components Repaired or Replaced and Replacement Components ASME Corrected, Code National Removed, or Stamped Name of Name of Manufacturer Board Other Year Installed (Yes or No)

Component Manufacturer Serial No.

No.

Identification Built Lower Oil Cit Support Bracket Bolts (3) lonincs Inc.

n/a n/a S/N 8062/63-2 1978 Removed No LowerOil Cit Support Bracket Bolts (2)

Nova Machine Products HI: CR172120 Code: N n/a S/N 8062/63-2 2005 Installed No Lower Oil CIt Bearing Bracket Pipe Support Bolts (4)

LowerOil CIt Bearing Bracket Pipe Support Bolts (4) lonincs Inc.

Dubose National Energy Services n/a HT: 57279 Code: 14571 n/a n/a S/N 8062/63-2 S/N 8062/63-2 1978 2003 Removed Installed No No 1.

Owner ExeIon Nuclear Name 4300 Winfield Road, Warrenville, IL 60555 Address 2.

Plant Byron Nuclear Power Station Date 3/13/06 Name 3.

Unit 00 4450 N. German Church Road, Byron, IL 61010 Address Work Performed by Westinghouse Electric Name P0 Box 355 Pittsburgh PA 15230-0355 Address Purchase Order No. 00083172 Release 00002 4.

Identification of System Repair Organization, P.O. No., Job No., etc.

Reactor Coolant [RCI - Spare Reactor Coolant Pump Motor Oil Coolers (Final)

I DOCUMENT NO.:

3.0 REV. NO.,:

0 FORM NIS-2 OWNERS REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 09/17/06 Name 4300 Wlnfleld Road, Warrenville, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power StatIon Unit 01 Name 4450 N, German Church Road, Byron~jL Work Order No. 59499201 Address Repa~~

OrganizatiOn, P.O. No., Job No., etc.

3.

Work Performed by NP S & W VENTURE Type CodeSymbol Stamp Not ApplIcable Name Authorization No.

Not Applicable 36400 S. Essex Road, WIlmington, IL 60481 ExpIration Date Not Applicable Address 4.

5.

IdentificatIon of System ResIdual Heat (a) Applicable Construction Code ASME Section III 1974 EdItion, S74 Addenda, 1644 Rev. 7, 1651, 1682, 1683, 1685, 1686, 1728, 1729, 1734, N-108, N-180 Code Case (b) Applicable Edition of Section Xl Used for Repair/Replacement Activity 2001 Edition / 2003 Addenda 6.

(c)Section XI Code Case(s)

NONE IdentifIcation of Components Nameof Component Name of Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built Corrected, Removed, or k~elaNed

~

ASME Code Stamped (Yes cc No)

Snubber, PSA

(~SA-1/4)

Pacific Scientific 14850 N/A 1RHO2112S 1980 Removed Yes Snubber, Lisega 3018 Llsega 30500419 001 N/A 1RHO2112S 2005 Installed No 7.

Description of Work REPLACED SNUBBER 8.

Test Conducted:

Hydrostatic 0 VT-3 Other ~

Pressure Pneumatic 0 Nominal Operating Pressure 0 ExempttJ psi Test Temp.

Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 8~in. x 11 in., (2) information in items 1 through 6 on this report is Included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 (Back) 9.

Remarks WO 594992-01 A~~llC5DlC Manufacturers Data deports to oe attacnec No.

CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stanip Not Applicable Certificate of Signed Not O~wie?sDesignee. Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission Issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspected the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owners Report inaccordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described In this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this Inspection.

Commissions jL /5y~,

Inspectors Signature National Board, Stale Province, and Endorsements Date:

,20 06 (Final)

DOCUMENT NO.:

4.1 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTiVITY As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Date 9/20/06 Name 4300 Wlnfield Road, Warrenville, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00792225-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by N P S & W VENTURE Type Code Symbol Stamp Not Applicable Name Authorization No.

Not Applicable 36400S. Essex Road, Wilmington, IL 60481 Expiration Date Not Applicable Address 4.

Identification of System RESIDUAL HEAT REMOVAL 5.

(a)

Applicable Construction Code ASME Section III 1971 Edition, S72 Addenda, None Code Case (b)

Applicable Edition of Section Xl Used for Repair/Replacement Activity 2001 Edition / 2003 Addenda (c)

Section XI Code Case(s)

NONE 6.

Identification of Components Name of Component Nameof Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built Corrected, Removed, or Installed ASME Code Stamped (Yes orNo)

RELIEF VALVE 3 x4~

Crosby Valve&Gage N56904-OO-0012 N/A 1RH8708A 1975 Removed YES VALVE vaIv~~~geN56904-O0-0013 N/A 1RH8708A 1975 Installed YES 7.

Description of Work REPLACE RELIEF VALVE FOR 1RH8708A 8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic 0 378 psi Nominal Operating Pressure ~

Exempt 0 Test Temp.

155 Note: Supplemental sheets in form of lists, sketches, or drawings maybe used, provided (1) size is 81/2in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 (Back) 9.

Remarks WO# 00792225-01 Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of &uthorization No.

Not Applicable Signed

~

~

Cmrst Date _______,20 ~(~

or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued bythe National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspected the components described in this Owners Report during the period 3.p~

to

,/

ii.. p6

, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neitherthe Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property d age or~1ossof any kind arising from or connected with this inspection.

Commissions j~j/~

J/!rI Inspectors Signature National Board, State Province, and Endorsements Date:

,44k 3j7

,20

~~6

L DOCUMENT NO.:

3-1 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear 2.

3.

Name 4300 WInfield Road, Warrenville, IL Date 9/18/06 Unit 02 1

Work Order No. 911404-01 Repair Organization, P.O. No., Job No., etc.

Type Code Symbol Stamp Not Applicable Not ApplIcable Not Applicable 4.

Identification of System RH - RESIDUAL HEAT REMOVAL 5.

(a) Applicable Construction Code ASME Section III 1974 Edition, S75 Addenda, NONE Code Case (b) Applicable Edition of Section Xl Used for Repair/Replacement Activity:

2001 EditionI2003 Addenda (C) Section Xl Code Case(s) 6.

Identification of Components NONE Nameof Component Name of Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built Corrected, Removed, or Installed ASME Code Stamped (Yes or No)

STUDS REPUBLIC STEEL HT#97674 N/A 1RH607 1979 REMOVED NO NUTS CASTLE METALS HT #6057647 N/A 1 RH607 1998 REMOVED NO STUDS Nova Machine Products HI Code R460 HI: 7526262 N/A CAT ID #44337 1 RH607 2005 INSTALLED NO NUTS

~

Nova Machine Products HI: Q2280A N/A CAT ID #30520 1 RH607 2006 INSTALLED NO 7.

Description of Work REPLACE FLANGE STUDS AND NUTS DUE TO BORIC ACID CORROSION 8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic 0 Nominal Operating Pressure 0 n/a psi Test Temp.

n/a Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

Sheet of Address Plant Byron Nuclear Power Station Name 4450 N. German Church Road, Byron, IL Address Work Performed by Byron Mechanical Maintenance Name 4450 N. German Church Road, Byron, IL Address 1

Authorization No.

Expiration Date Exempt D

FORM NIS-2 (Back) 9.

Remarks Work Order No. 911404-01 Applicable Manufacturers Data Heports to ~eattached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not ApplIcable Certificate of A orization No.

Not Applicable Signed

~

Date _______,20j~~

~~yr Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued bythe National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspected the components described in this Owners Report during the period to qi546

, and state that to the best of my knowledge and belief, t1~eC(wner has performed examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions 1It-JJ5~

Inspectors Signature National Board, State Province, and Endorsements Date:

~

/~

,20

~

(Final)

FORM NIS-2 OWNERS REPORT FOR REPAIRS OR REPLACEMENT As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 8-29-05 Name 4300 Winfield Rd. Warrenvllle, II. 60555 Sheet I of I 2.

Plant Byron Nuclear Power Station Unit 0 Name 4450 N. German Church Road, Byron, II.

PurchaseOrder 00084690 Address Repa)r Oi~an~zatIon,P.O. No., Job No., etc.

3.

Work Performed by FLOWSERVE Type Code Symbol Stamp Not Applicable Pw~e Authorization No. Not Applicable 4816 Worth P1. Charlotter, North Carolina Expiration Date Not Applicable 4.

Identification of System (RH) Residual Heat 5.

(a) Applicable Construction Code Section Ill 19 74

EdItion, S74 Addenda N528-1 Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacement Components 19 89 6.

Identification of Components Repaired or Replaced and Replacement Components

~et

~E N.m.~

Coi~,cnwd Nsmso(

Uumi&*zv Mesiaet,.r Sedl No.

Bawd No.

0th.

Idwd5~

Yew B~t RsØacsd, orf~c4.csment CodsSlaniped (Y~or No)

Locating Tabs on StuffingBox Extension piece Ingersoll Rand 91130 N/A UTC 2714864

,.~ NO. ~

1~

Replacement No 7.

Description of Work: Welded 8 locating tabs on Stuffing Box Extension piece, Cat lD# 1405802-1 8.

Test Conducted:

HydrostatIc 0 Pneumaticlj Nominal Operating Pressure Q None Reouired Other El Pressure psi Test Temp.

°F Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provlded (1) size is 8-1/2 in. x 11 In.,

(2) information in items I through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This fonn his been ~ectron)ca1y generated.

FORM NIS-2 (Back)

ER-AA-330-009 Revision 2 Page 30 of36 9.

Remarks Facitily Evaluation # 00040795 CERTIFICATE OF COMPLIANCE We certifythat the statements made in the report are correct and Replacement conforms to the rules of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of Authorization No.

Not Applicable Expiration Date Not ApplIcable Signed Scott Esposito

~

Date 4- / Z

,20 06 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission Issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT.

of Hartford~CT have inspecte~,the,componentsclescnbed in this Owners Report during the period

~

to

,and state that to the best of my knowledge and belief, the,~wnefhas performed examinationsandtaken corrective measures described in the Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employermakes anywarranty, expressed or Implied, concerning the examinations and corrective measures described in this Owners Report Furthermore, neither the Inspector nor his employer shall be liable in any manner for anypersonal injury or propertydamage or a loss of any kind aris from or ad with this inspection.

~

Commissions

~

Date ~

,2006

DOCUMENT NO.:

4,0 REV. No.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nudear Date 9/27/06 Name 4300 Winfield Road, Warrenville, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00783828-02 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Westinghouse Type Code Symbol Stamp Not Applicable Electric Company LLC Name Authorization No.

Not Applicable P0 Box 355, PIttsburgh, PA. 15230-0355 Expiration Date Not Applicable Address 4.

Identification of System Pressurizer (RY) 5.

(a) Applicable Construction Code (Vessel) ASME Section III 19 71 EdItion, S73 Addenda,

~

Code Case 1528 Applicable Construction Code (Pipe)

ASME Section III 1974 Edition, S75 Addenda, None Code Case (b) Applicable Edition of Section XI Used for Repair/Replacement Activity 2001 Edition / 2003Addenda (C)Section XI Code Case(s)

(*) N-504-2 and N-638-1 APPROVED BY NRC, RR 13R-08 6.

IdentIfication of Components Repaired or Replaced and Replacement Components:

Name of Name of Manufacturer National Other Year Corrected, ASME Code Component

~

Manufacturer Serial No.

Board No.

Identification Built Removed, or Installed Stamped (Yes or No) 1RYO1S, Surge

~

Weld/Pipe Westinghouse PZR: 1721 Safe-End: Fit #

~g5eLine:

10350 W13580 1 RY1 1A-14 1RYO1S, PN SW1 1976 Installed YES 7.

Description of Work STRUCTURAL WELD OVERLAY ON PRESSURIZER SURGE NOZZLE PN SW~UNENo. 1RY11A-14

-I 8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic 0 2233 psI Nominal Operating Pressure ~

Exempt 0 Test Temp.

557 Note: Supplemental sheets in form of lists, sketches, or drawings maybe used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI (back) 9.

RemarkS Work Order No. 00783828 - 02 Applicable Manufacturers Data Reports to be attached

(*) Code Cases N-504-2 and N-638-1 invoked by Relief Request 13R-08, B&PV Code Case 2142-2 CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate ofA~iéioØ~tion Fj9/

Not Applicable Signed A4~Yi.%~

£4.~ø7

(~S2~COOIZ~/II-7~Y?~

Date 1~

,20 06 Owner or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of IllinoIs and employed by HSB CT of Hartford, CT have inspected the components described In this Owners Report during the period to

, and state that to the best of my knowledge and belief, the dwner has performed e~aminatIonsand taken corrective measures described in this Owners Report In accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions

-1J54 Inspectors Signature National Board, State Province, and Endorsements Date:

,20 06

FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 09/27/06 Name 4300 WInfIeld Road, Warrenvllle, IL Sheet 1

of Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00783828-40 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by N P S & W VENTURE Type Code Symbol Stamp Not Applicable Name Authorization No.

Not Applicable 36400 S. Essex Road, Wilmington, IL 60481 Expiration Date Not ApplIcable Address 4.

Identification of System Reactor Coolant PressurIzer (RY) 5.

(a) Applicable Construction Code ASME Section Ill 19 74 EdItion, S74 Addenda, See Remarks Code Case (b) Applicable Edition of Section Xl Used for Repair/Replacement Activity: 2001 Edltlon/2003 Addenda (C) Section Xl Code Case(s)

NONE 6.

Identification of Components Name of Component Name of Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built Corrected, Removed, or Iristalled ASME Code Stamped (Yes or No)

FIG 2956 Pipe Clamp Load Bolt (2)

Grinneil N/A N/A 1 RY09045C 1984 REMOVED NO FIG 2956 Pipe Clamp Load Bolt (2)

Anvil HT RF8782 N/A 1 RY09045C 2003 INSTALLED NO FIG 2956 Pipe Clamp Hex Nuts (6)

Gnnnell N/A N/A 1RYO9O4SC 1984 REMOVED NO FIG 2956 Pipe Clamp Hex Nuts (6)

Nova Machine Products HT: 8994826 N/A 1 RY09045C 2003 INSTALLED NO FIG 290 3/4 Wekiless Eyenut Grinnell N/A N/A 1 RY09045C 1984 REMOVED NO FIG 290 3/4 Weldiess Eyenut Anvil N/A N/A 1 RY09045C 2006 INSTALLED NO 3/4 Threaded Support Rod Grinnell N/A N/A 1 RY09045C 1984 REMOVED NO 3/4 Threaded Support Rod Nova Machine Products HT: 230941 Code: S213 N/A 1 RY09045C 2004 INSTALLED NO 3/4 Hex Nuts(2)

Grlnnell N/A N/A 1RY09045C 1984 REMOVED NO 3/4 Hex Nuts (2)

Nova Machine Products HT: S67159 N/A 1 RY09045C 2005 INSTALLED NO 7.

Description of Work REPLACE PIPE CLAMP LOAD BOLTS/HEX HUTS, SUPPORT ROD, EYENUT AND HEX NUTS.

8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure 0 Exempt 0 VT-3 Other ~

Pressure psi Test Temp.

Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 (Back) 9.

Remarks Work Order No. 00783828-40 Applicable Manufacturers Data tieports io oe attacneci Code Cases: 166 Rev 7, 1682, 1683, 1685, 1686, 1651, 1728, 1729, 1734, N-180, N-108, N-222, N-225 N-38, 1690, N-242-1, and n-247 CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of A onzation 0.

Not Applicable Signed

~j Date _______,20 (DL CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspected the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, the O~nerhas performecfexaf~inationsand taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neitherthe Inspector nor his employer shall be liable in any mannerfor any personal injury or property clama e or a loss of any kind arising from or connected with this inspection.

Commissions

/~4 /I,g Inspectors Signature National Board, State Province, and Endorsements Date:

Dee. 2(

,20

~

L DOCUMENT No.:

4.0 REV. No.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Date 9/27/06 Name 4300 Winfield Road,Warrenville, IL Sheet 1

of Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road,Byron, IL Work Order No. 00783828-45 Address Repair Organization, P.O. No., Job No., etc.

3.

WorkPerformed by Westinghouse Electric TypeCode Symbol Stamp Not Applicable Company LLC Name Authorization No.

Not Applicable P0 Box355, Pittsburgh, PA. 15230-0355 Expiration Date Not Applicable Address 4.

Identification of System Pressurizer (RY) 5.

(a)

Applicable Construction Code ASME Section ifi 19 71 Edition, S73 Addenda, NB4643, Code Case (vessel) 1493-1, 1528 Applicable Construction Code (Pipe) ASME Section ifi 19 74 Edition, S75 Addenda, None Code Case (b)

Applicable Edition of Section XI Used for Repair/Replacement Activity 2001 Edition /

2003 Addenda (c)

Section XI Code Case(s)

(*) N-504-2 and N-638-1 APPROVED BY NRC,RB 13R-08 6.

Identificationof Components Repaired or Replaced and ReplacementComponents:

ASME Corrected, Code National Removed, or Stamped Nameof Name of Manufacturer Board Other Year Installed (Yes or No)

Component Manufacturer Serial No.

PZR: 1721 No.

Identification Built I RYOIS, Spray NozzleJDM Weld/Safe -End/SS WektlConcenmc Reducer Westinghouse Safe-End: HL #

P72S s~~ntdo Reducer 91278-3 W13580 IRYO1C-~IRYOIS PN-02-SW2

1976 Installed YES 7.

Description of Work STRUCTURAL WELD OVERLAY ON PRESSURIZER SPRAY NOZZLE, 1RYOIS, PN-02-SW2ILINE IRYO1C-4 Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure ~

Exempt0 2233 psi Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

8.

Test Conducted:

Other 0 Pressure Test Temp.

557

FORM NIS-2 OWNERS REPORTFOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI (back) 9.

Remarks Work Order No. 00783828-45 Applicable Manutacturers Data Reports to be attached

(*) Code Cases N-504-2 and N-638-1 invoked by Relief Reauest 13R-08, B&PV Code Case 2142-2 CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of theASME Code,Section XI.

Type Code Symbol~tamp Not Applicable Certificate of Aut i~ffonNo Not Applicable Signed 1~t~ C~o14~?,%c.

Date It.(lrF-

,20 Owner or Owners Designee,Title 06 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by theNational Board of Boiler and Pressure Vessel Inspectors and the State or Province of illinois andemployed by HSB CT of

~Hartford, CT have inspected the components describedin this Owners Report during the period to

, and state that to the best of my knowledge and belief, wner has performed examinations and taken corrective measures described in this Owners Report in accordance with therequirements of the ASME Code,Section XI.

Bysigning this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning theexaminations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employershall be liable in any manner for any personal injury or property damage or a loss of any kindarising from or connected with this inspection.

~Y~

Commissions

/%4.. /,~9 Inspectors Signature National Board, State Province, and Endorsements Date:

~

if

,20 06

I DOCUMENT No.:

4.0 REV. No.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME CodeSection XI 1.

Owner Exelon Nuclear Date 9/27/06 Name 4300 WinfieldRoad, Warrenvile, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00783828-46 Address Repair Organization, P.O. No.,Job No., etc.

3.

Work Performed by Westinghouse Electric Type Code Symbol Stamp Not Applicable Company LLC Name Authorization No.

Not Applicable P0 Box 355, PIttsburgh,PA. 15230-0355 Expiration Date Not Applicable Address 4.

Identification of System Pressurizer (RY) 5.

(a)

Applicable Construction Code ASME Section ifi 19 71 Edition, S73 Addenda, NB4643, Code Case (vessel) 1493-1, 1528 Applicable Construction Code (Pipe) ASME Section ifi 19 74 Edition, S75 Addenda, None Code Case (b) Applicable Edition of Section XI Used for Repair/Replacement Activity 2001 Edition /

2003 Addenda (c)

Section XI Code Case(s)

(*) N-504-2 and N-638-1 APPROVED BY NRC, RR 13R-08 6.

Identification of Components Repaired or Replaced and ReplacementComponents:

ASME Corrected, Code National Removed,or Stamped Name of Nameof Manufacturer Board Other Year Installed (Yes or No)

Component Manufacturer Serial No.

PZR: 1721 No.

Identification Built IRYOIS, Relief

~~-Enwss Weld/45°Elbow Westinghouse Safe-End: I-It #

~

61378-6 Wl3580 IRYO2A-6, 1RYOIS, PN SW3 1976 Installed YES 7.

Description of Work STRUCTURAL WELD OVERLAY ONPRESSURIZER SPRAY NOZZLE, 1RYO1S, PN-03-SW3 - RELIEF NOZZLE

- LINE 1RYO2A-6. WELD OVERLAY HAD SEVERAL AREAS REQUIRING REPAIR DUETO UNACCEPTABLE FLAWS.

THESE FLAWS WERE REMOVED AND CORRECTED, W/O 783828 TASK 74.

8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic 0 Nominal OperatingPressure ~

Exempt 0 2233 psi Test Temp.

557

°F Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by theProvisions of the ASME Code Section XI (back) 9.

Remarks Work Order No. 00783828-46 Applicable Manufacturers Data Reports to be attached

(*) Code Cases N-504-2 and N-638-1 invoked by Relief Request 13R-08, B&PV Code Case 2142-2 CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate ofAuth~j~tJ~n No.

Not Applicable Signed

,Zltit ~o&Ob../M9v~..

Date

)t~Jp)

,20 Owneror Owners Designee, Title 06

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartjord, CT have inspec~dthe components described in this Owners Report during the period to

,and state that to the best of my knowledge and belief, ttce O~nerhas performed exami~ationsand taken corrective measuresdescribed in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employershall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

~%ø~~*~

Commissions 14~/j5rf Inspectors Signature National Board, State Province, and Endorsements Date:

j~4~g./~

,20 06

STRUCTURAL WELD OVERLAY ON PRESSURIZER, SMFETY NOZZLE PN SW4-LINE 1RYO3AA-6. WELD OVERLAY HAD SEVERAL AREAS REQUIRING REPAIR DUE TO UNACCEPTABLE FLAWS. THESE FLAWS WERE REMOVED AND CORRECThD, W/O 783828 TASK 73.

8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal OperatingPressure ~

Exempt 0 Other 0 Pressure 2233 psi Test Temp.

557 Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

[

DOCUMENT No.:

4.0 REV. No.:

0 FORM NIS-2 OWNERS REPORTFOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of theASME Code Section XI 1.

Owner Exelon Nuclear Date 9/27/06 Name 4300 Winfield Road, Warrenvitle, Ii Sheet 1

of Address 2.

Plant Byron NuclearPower Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00783828 -47 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Westinghouse Electric Type Code Symbol Stamp Not Applicable CompanyLLC Name Authorization No.

Not Applicable P0 Box 355, Pittsburgh, PA. 15230-0355 Expiration Date Not Applicable Address 4.

Identification of System Pressurizer (RY) 5.

(a)

Applicable ConstructionCode ASME Section ifi 19 71 Edition, S73 Addenda, NB4643, CodeCase (vessel) 1493-1, 1528 Applicable Construction Code (Pipe) ASME Section ffi 19 74 Edition, S75 Addenda, None Code Case (b) Applicable Edition of Section XI Used for Repair/Replacement Activity 2001 Edition/

2003 Addenda (c)

Section XI Code Case(s)

(*) N-504-2 and N-638-1 APPROVED BY NRC, RR 13R-08 6.

Identification of Components Repaired or Replaced andReplacement Components:

ASME Corrected, Code National Removed, or Stamped Name of Nameof Manufacturer Board Other Year Installed (Yes or No)

Component Manufacturer SerialNo.

PZR: 1721 No.

Identification Built IRYO1S, Safety Safe-End: Ht.

A Nozzle/DM

1. P72S IRYO3AA-6, Weld/Safe Westinghouse Safety A~

W13580 IRYOIS, PN 1976 Installed YES End/SS Weld/45° Elbow:

SW4 Elbow 92378-9 7.

Description of Work

FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by theProvisions of the ASME Code Section XI (back) 9.

Remarks Work Order No. 00783828 -47 Applicable ManufacturersData Reports to be attached

(*) Code Cases N-504-2 and N-638-1 invoked by Relief Request 13R-08, B&PV Code Case 2142-2 CERTIFICATE OF COMPLIANCE I certify that the statements made inthe report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp NotApplicable Certificate of Autho t~ No.,~,,,

NotApplicable Signed

~.vF(

(SCit ~

Date 12/20 Owneror Owners Designee, Title

,20 06 CERTIFICATE OF INSERVICEINSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler andPressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspec)ed the components described in this Owners Report duringthe period to

, and state that to the best of my knowledge and belief, the Ownerhas performed examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing thiscertificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector norhis employer shall be liable inany manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

~

Commissions Inspectors Signature National Board, State Province, and Endorsements Date:

.2P

,20 06

DOCUMENT No.:

4.0 REV. No.:

0 1 FORM NIS-2 OWNERS REPORTFOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of theASME Code Section XI 1.

Owner Exelon Nuclear Date 9/27/06 Name 4300 Winfield Road, Warrenvifle, IL Sheet 1

of Address 2.

Plant Byron NuclearPower Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00783828-48 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Westinghouse Electric Type Code Symbol Stamp Not Applicable Company LLC Name Authorization No.

Not Applicable P0 Box 355, Pittsburgh, PA. 15230-0355 Expiration Date Not Applicable Address 4.

Identification of System Pressurizer (RY) 5.

(a)

Applicable Construction Code ASME Section ifi 19 71 Edition, S73 Addenda, NB4643, Code Case (vessel) 1493-1, 1528 Applicable Construction Code (Pipe) ASME Section ifi 19 74 Edition, S75 Addenda, None Code Case (b) Applicable Edition of Section XI Used forRepair/ReplacementActivity 2001 Edition /

2003 Addenda (c)

Section XI Code Case(s)

(*) N-504-2 and N-638-1 APPROVED BY NRC,RR 13R-08 6.

Identification of Components Repaired or Replaced andReplacement Components:

ASME Corrected, Code National Removed, or Stamped Name of Name of Manufacturer Board Other Year Installed (Yes or No)

Component Manufacturer Serial No.

PZR: 1721 No.

~

Identification Built IRYOIS, SafetyB

-~~s Weld/45°Elbow Westinghouse Safe-End: Ht. #

~

EIbow~92378-8 W13580 1RYO3AB-6, IRYOIS, PN SW5 1976 Installed YES 7.

Description of Work STRUCTURAL WELD OVERLAY ON PRESSURIZER SAFETY NOZZLE, PN SW5 - LINE 1RYO3AB-6 TestTemp.

557 Note: Supplemental sheets in form of lists, sketches, or drawings maybe used, provided (1) size is 81/2in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at thetop of this form.

8.

Test Conducted:.

Hydrostatic 0 Other 0 Pressure 2233 psi Pneumatic 0 Nominal OperatingPressure ~

Exempt 0

FORMNIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required bythe Provisions of the ASME Code Section XI (back) 9.

Remarks Work Order No. 00783828-48 Applicable ManufacturersData Reports to be attached

(*) Code Cases N-504-2 and N-638-l invoked by ReliefRequest I3R-08, B&PV Code Case 2 142-2 CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol~tamp Not Applicable Certificate of Autl/riz~jonNo NotApplicable Signed 4$~f\\

(~L&

~

Date ILII!

,20 O~~ejor Owners Designee, Title 06 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holdinga valid commission issuedby the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of illinois and employed by HSB CT of Hartford, CT have inspec the components described in this Owners Report during the period to

,and state thatto the bestof my knowledge and belief, th(O~erhas performed examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing thiscertificate neither the Inspectornor hisemployer makes any warranty, expressed or implied, concerning the examinations andcorrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employershall be liable in any manner for any personal injury or property damap or a loss of any kind arisingfrom or connected with this inspection.

~94~*~r Commissions

/4~-/L/41 Inspectors Signature National Board, State Province, and Endorsements Date:

DeLJt

,20 06

DOCUMENT No.:

4.0 REV. No.:

FORMNIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI Owner Exelon Nuclear Date 9/27/06 Name 4300 Winfleld Road, Warrenvifle, IL Sheet 1

of 1

Address Plant Byron NuclearPower Station Unit 01 Name 4450 N.German Church Road, Byron, IL WorkOrder No. 00783828-49 Address Repair Organization, P.O. No.,Job No., etc.

Work Performed by Westinghouse Electric Type Code Symbol Stamp Not Applicable CompanyLLC Name Authorization No.

Not Applicable Box 355, Pittsburgh, PA. 15230-0355 Expiration Date Not Applicable Address Identification of System PRESSURIZER (RY)

Applicable Construction Code ASME Section ifi 19 71 Edition, S73 Addenda, NB4643, Code Case (vessel) 1493-1, 1528 ApplicableConstruction Code (Pipe) ASME Section ffi 19 74 Edition, S75 Addenda, None Code Case Applicable Edition of Section XI Used for Repair/Replacement Activity 2001 Edition/

2003 Addenda Section XI Code Case(s)

(°)N-504-2 andN-638-1 APPROVED BY NRC, RR 13R-08 Identification of Components Repaired or Replaced andReplacement Components:

ASME Corrected, Code National Removed, or Stamped of Name of Manufacturer Board Other Year Installed (Yes or No)

Manufacturer Safety End/SS Westinghouse Elbow Serial No.

PZR: 1721 Safe-End: Ht.

1. P72S Safety C Elbow: 92378-No.

W13580 Identification IRYO3AC-6, 1RYOIS, PN SW6 Built 1976 Installed YES 7.

Description of Work STRUCTURAL WELD OVERLAY ON PRESSURIZER 1RYO1S, SAFETY NOZZLE, PN-06-SW6 - LINE 1RYO3AC-6. WELD OVERLAY HAD SEVERAL AREAS REQUIRING REPAIRDUE TO UNACCEPTABLE FLAWS. THESE FLAWS WERE REMOVED AND CORRECTED, W/O783828 TASK72.

8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure ~

Exempt 0 Other 0 Pressure 2233 psi Test Temp.

557 Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, arid (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required bythe Provisionsof theASME Code Section XI (back) 9.

Remarks Work Order No. 00783828-49 Applicable Manufacturers Data Reports to be attached

(*) Code Cases N-504-2 and N-638-1 invoked by Relief Request 13R-08, B&PV Code Case 2142-2 CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correctand this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of Author t~ No.

Not Applicable Signed Date 12/20

,20 Owneror Owners Designee, Title 06 CERTIFICATEOF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boilerand Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have in~pectedthe components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, the Owner has performedexaminations and takencorrective measures described inthis Owners Report inaccordance withthe requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty,expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neitherthe Inspector nor his employershall be liable in any mannerfor any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

$7,~~4i~r~

Commissions Inspectors Signature NationalBoard, State Province, and Endorsements Date:

J)~?/1

,20 06

DOCUMENT No.:

4.2 REV No.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Date 10/13/06 Name 4300 WInfield Road, Warrenvllle, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00783828-72 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Westinghouse Electric Type Code Symbol Stamp Not ApplIcable Company LLC Name Authorization No.

Not Applicable P0 Box 355, PIttsburgh, PA. 15230-0355 Expiration Date Not Applicable Address 4.

Identificationof System PRESSURIZER (RY)

(pipe) ASME Section ifi, 1974 Edition, S75 Addenda 5.

(a)

Applicable Construction Code ASME Section III 19 71 Edition, S73 Addenda, NB4643, Code Case (vessel) 1493-1, 1528 (b) Applicable Edition of Section XI Used for Repair/Replacement Activity 2001 Edition/

2003 Addenda (C)

Section Xl Code Case(s)

(*) N-504-2 and N-638-1 APPROVED BY NRC,, RR 13R-08 6.

Identification of Components Repaired or Replaced and Replacement Components:

ASME Corrected, Code National Removed, or Stamped Name of Name of Manufacturer Board Other Year Installed (Yes or No)

Component Manufacturer Serial No.

PZR: 1721 No.

Identification Built 1RYO1S, Safety Safe-End: Ht.

C Nozzle/DM

1. P72S 1 RYO3AC-6, Weld/Safe Westinghouse Safety C W13580 1RYO1S, PN 1976 Corrected YES End/SS Weldi~45° Elbow: 92378-SW6-R1 Elbow 4

7.

Description of Work STRUCTURAL WELD OVERLAY ON PRESSURIZER 1RYO1S, SAFETY NOZZLE, PN-06-SW6-R1 - LINE 1RY03AC~6N 8.

Test Conducted:

Hydrostatic D Other 0 Pressure Pneumatic 0 2233 psi Nominal Operating Pressure ~

Exempt 0 Test Temp.

557

¶ Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NlS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As RequIred by the Provisions of the ASME Code Section XI (back) 9.

Remarks Work Order No. 00783828-72 Applicable Manufacturers Data Reports to be attached

(*) Code Cases N-504-2 and N-638-1 invoked by Relief Request 13R-08, B&PV Code Case 2142-2 CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stam Not Applicable Certificate of Author t

No.

Not ApplIcable Signed

~tfCK

~

Date 12/20

,20 06 O~ri~

or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspected the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, the dwner has perform6d ~xamlnations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner forany personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions

/11-/~t5~f Inspectors Signature National Board, State Province, and Endorsements Date:

__________,2006

DOCUMENT No.:

4.2 REV. No.:

0 1

FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 10/10/06 Name 4300 Winfield Road, Warrenvllle, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00783828-73 Address Repair Organization, P.O. No., Job No., etc.

3.

WorkPerformed by Westinghouse Electric Type Code Symbol Stamp Not Applicable Company_LLC Name Authorization No.

Not Applicable P0 Box 355, PIttsburgh, PA. 15230-0355 Expiration Date Not Applicable Address 4.

Identification of System PRESSURIZER (RY)

(pipe) ASME Section ifi, 1974 Edition, S75 Addenda 5.

(a) Applicable Construction Code ASME Section III 19 71 Edition, S73 Addenda, NB4643,Code Case (vessel) 1493-1, 1528 (b) Applicable Edition of Section Xl Used for Repair/Replacement Activity 2001 Edition /

2003 Addenda (C)

Section XI Code Case(s)

(*) N-504-2 and N-638-1 APPROVED BY NRC, RR l3R-08 6.

Identification of Components Repaired or Replaced and Replacement Components:

ASME Corrected, Code National Removed, or Stamped Name of Name of Manufacturer Board Other Year Installed (Yes or No)

Component Manufacturer Serial No.

PZR: 1721 No.

Identification Built 1 RYO1S, Safety Safe-End: Ht.

A Nozzle/DM

1. P72S 1RYO3AA-6, Weld/Safe Westinghouse Safety A Wi3580 1 RYO15, PN 1976 Corrected YES End/SS Weld/45° Elbow: 92378-SW4-R1 Elbow 9

7.

Description of Work STRUCTURAL WELD OVERLAY ON PRESSURIZER IRYO1S, 1A SAFETY NOZZLE, PN-04-SW4-R1 - LINE 1 RYO3AA-6 8.

Test Conducted:

Hydrostatic D Other 0 Pressure Pneumatic 0 2233 psi Nominal Operating Pressure ~

Exempt 0 Test Temp.

557 Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl (back) 9.

Remarks Work Order No. 00783828-73 Applicable Manufacturers Data Reports to be attached

(*) Code Cases N-504-2 and N-638-1 invoked by Relief Request 13R-08, B&PV Code Case 2142-2 CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of Aut~ji~?ion No.J Not Applicable Signed iZ~,2~ttC~~LO~it~i.

Date 12/20

,20 06 Owner or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler andPressure Vessel Inspectors and the State or Province of IllInois and employed by HSB CT of Hartford, CT have inspec~dthe components described in this Owners Report during the period to

/44,~/6~.6

, and state that to the best of my knowledge and belief, the dwner has perform6d examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions Inspectors Signature National Board, State Province, and Endorsements Date:

___________,20 06

DOCUMENT No.:

4,2 REV. No,:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code SectIon XI 1.

Owner Exelon Nuclear Date Name 4300 Winfleld Road, Warrenville, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00783828-74 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Westinghouse Electric TypeCode Symbol Stamp Not Applicable Company LLC Name Authorization No.

Not Applicable P0 Box 355, Pittsburgh, PA. 15230-0355 Expiration Date Not Applicable Address 4.

Identification of System PRESSURIZER (RY)

(pipe) ASME Section ifi, 1974 Edition, S75 Addenda 5.

(a)

Applicable Construction Code ASME Section III 19 71 Edition, S73 Addenda, NB4643, Code Case (vessel) 1493-1, 1528 (b)

Applicable Edition of Section XI Used for Repair/Replacement Activity 2001 Edition /

2003 Addenda (C)

Section Xl Code Case(s)

(*) N-504-2 and N-638-1 APPROVED BY NRC, RR l3R-08 6.

Identification of Components Repaired or Replaced and Replacement Components:

ASME Corrected, Code National Removed, or Stamped Name of Name of Manufacturer Board Other Year installed (Yes or No)

Component Manufacturer Serial No.

PZR: 1721 No.

Identification Built 1RYO1S, Relief a~~-~txi/ss WekV45°Elbow Westinghouse Safe-End: Ht. #

~

61378-6 W13580 1 RYO2A-6 1RYO1S, PN SW3R1 1976 Corrected YES 7.

Description of Work STRUCTURAL WELD OVERLAY ON PRESSURIZER 1 RYO15, PORV NOZZLE, PN-03-SW3-R1 - LINE 1RYO2A-6 8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic 0 Nominal Operating Pressure ~

Exempt 0 2233 psi Test Temp.

557 Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of thisform.

FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI (back) 9.

Remarks Work Order No. 00783828-74 Applicable Manufacturers Data Reports to be attached

(*) Code Cases N-504-2 and N-638-1 invoked by Relief Request 13R-08, B&PV Code Case 2142-2 CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symboi,Stamp Not Applicable Certificate of Auth/~zftfonNo. /

Not Applicable Signed A2~1~.4e~4~7 jZ~ti( CO.I*7~

Date gvi,q

,20 06 Owner or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have insyected the components described in this Owners Reportduring the period to

, and state that to the best of my knowledge and belief, the wner has performed examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neitherthe Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions

/~/~.4%ff inspectors Signature National Board, State Province, and Endorsements Date:

~j A/

,20 06

DOCUMENT No: 4.2 FORM NIS-2 OWNERS As Required by th REV. NO.: 0 OR REPLACEMENT Code Section XI REPORT FOR REPAIRS e Provisions of the ASME 1.

Owner Exelon Nuclear Date 10-12-06 Name 4300 Winfleld Rd. Warrenville, II. 60555 Sheet I of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, Il.

Work Order No. 00783828-85 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron Mech. Maintenance Type Code Symbol Stamp Not Applicable Name Authorization No. Not Applicable 4450 N. German Church Road, Byron, IL Expiration Date Not Applicable Address 4.

Identification of System RY REACTOR COOLANT PRESSURIZER 5.

(a) Applicable Construction Code Section III 1974 Edition, S74 Addenda See Remarks Code Case (b) Applicable Edition of Section XIUtilized for Repairs or Replacement Components 2001 Ed / 2003 Ad (c) Applicable ASME Section XI Code Cases: ~~None 6.

Identification ofComponents Repaired or Replaced and Replacement Components Name of Component Name of Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built

Repaired, Replaced, or Replacement ASME Code; Stamped (Yes or No)

HEX NUT, CI.AMP GRINNELL N/A N/A 1RYO9O3OC N/A REMOVED NO HEX NUT, ~AMP ANVIL N/A N/A CAT ID 37034 N/A INSTALLED

NO 7.

Description of Work INSTALLEDPIPE CLAMP HEX NUT.

8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating PressureD VT-3 Other 0 Pressure______

psi Test Temp.______________

°F Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 8-1/2 in. x 11 in.,

(2) information in items I through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets isrecorded at the top of this form.

This focm has been ekctron,cally geI~rated.

J DOCUMENT No: 4.2 REV. NO.: 0 FORMNIS-2 (Back) 9.

Remarks Work Order No. 00783828-85 Annhs,hIe Mam,f5etn,~rsI)ntn Pn.,.tc kmN.

Constant Support Code Cases: 1644 Rev. 7, 1682, 1683, 1685, 1686, 1651, 1728, 1729, 1734, N-180, N-108, N-225, N-38,1690, N-242-1, and N-247 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this REPLACEMENT conforms to the rules of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of Authorization No. Not Applicable Expiration Date Not Applicable Signed___________________________________________

Date

/Z.~d

,2006

(~O~&.

Dn~ Thk CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by H.S.B. CT of Hartford, Ct.

have inspcte)l the components described in this Owners Report during the period___________ to___________________ and state that to the best of my knowledge and belief, the Owner has performed 6xaminations and taken corrective measures described in the Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinationsand corrective measures described in this Owners Report.

Furthermore, neither the Inspector norhis employer shall be liable in any mannerfor any personal injury or prop~rt~

dama e of a loss of any kind arising from or connected with this inspection.

~

Commissions ji/-/I5~

I..p.no.. 51.

N.i.~ B~ Sk~,Pro,~ ~d Ead,.~

Date ke. h~

,2006

I DOCUMENT NO.:

4.1 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As RequIred by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Date 9/15/06 Name 4300 WInfleld Road, Warrenville, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00802596-01 Address Repair OrganizatIon, P.O. No., Job No., etc.

3.

Work Performed by N P S & W VENTURE Type Code Symbol Stamp Not Applicable Name Authorization No.

Not ApplIcable 36400 S. Essex Road, Wilmington, IL 60481 Expiration Date Not Applicable Address 4.

Identification of System Reactor Coolant Pressurizer (RY) 5.

(a) Applicable Construction Code ASME Section III 19 71 Edition, W72 Addenda, NONE Code Case (b)

Applicable Edition of Section XI Used for Repair/Replacement Activity 2001 Edition / 2003 Addenda (C)

Section Xl Code Case(s)

NONE 6.

identification of Components ASME Corrected, Code National Removed, or Stamped Nameof Name of Manufacturer Board Other Year Installed (Yes orNo)

Component Manufacturer Sesial No.

No.

Identification Built REUEF VALVE CROSBYVALVE N56964-O0-0047 N/A 1 RY8O1OB 1976 REMOVED YES REUEF VALVE CROSBY VALVE rs~s6~.oo~oO89 N/A 1RY8O1OB 1977 INSTALLED YES 7.

Description of Work RELACE RELIEF VALVE LESS INLET NUTS PER PM REQUIREMENTS 8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic 0 Nominal Operating Pressure 0 2233 psi Test Temp.

557

¶ Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81k in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

Exempt 0

FORM NIS-2 (Back) 9.

Remarks WO 00802596-01 Applicable Manufacturers Data ~eportsto be attacrieo CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not ApplIcable Certificate of Aut~orIzationNo.

Not Applicable Signed

~

<~I~

~r~L Date i~4c

,20 06 Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel inspectors and the State or Province of IllInois and employed by HSB CT of Hartford, CT have inspected the components described in this Owners Report during the period

/ ~

to

,/ ~q9.

~

, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor hIs employer shall be liable in any manner for any personal injury or property dampge or a loss of any kind arising from ~rconnected with this inspection.

Commissions

~Z1~~~(54 Inspectors Signature National Board, State Province, and Endorsements Date:

A#tF~ ~

,20 06 (Final)

7.

Description of Work REPLACE VALVE TRIM 8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure 0 Exempt 0 psi Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

L DOCUMENT NO.:

4-1 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Date I /a i Name 4300 WInfield Road, Warrenvllle, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00836102-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron Mechanical Type Code Symbol Stamp Not Applicable MaIntenance Name Authorization No.

Not Applicable 4450 N. German Church Road, Byron, IL Expiration Date Not Applicable Address 4.

Identificatiori of System RY - REACTOR COOLANT PRESSURIZER 5.

(a) Applicable Construction Code ASME Section Ill 19 71 Edition, S72 Addenda, 1649 Code Case (b) Applicable Edition of Section Xl Used for Repair/Replacement Activity: 2001 Edltlon~2003Addenda (c) Section Xl Code Case(s)

NONE 6.

Identification of Components ASME Corrected, Code National Removed, or Stamped Nameof Nameof Manufacturer Board Other Year Installed (Yes orNo)

Component Manufacturer Serial No.

No.

Identification Built VALVE PLUG COPES VULCAN 88-5 N/A 1 RY456 1990 REMOVED NO VALVE PLUG COPES VULCAN 9821-96590-1-3 (986)

N/A CAT ID #35955 1RY456 HT# 24696 1998 INSTALLED NO Other 0 Pressure Test Temp.

FORM NIS-2 (Back) 9.

Remarks Work Order No. 00836102-01 Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of1A~thorizationNo.

Not Applicable Signed flj~4 CL. LLL JI~IQRCboRiIA),t 7Zf~

Date _______,20 O~.

O~

or OwnersDesignee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued bythe National Board of Boiler and Pressure Vessel Inspectors and the State or Province of IllInois and employed by HSB CT of

,Har3ford, CT have ins9ecte~~I the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, the Owner has performed 6xaminations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neitherthe inspector nor his employer shall be liable in any manner for any personal injury or property damag~e a loss of any kind arising from or connected with this inspection.

Commissions ________________________

Inspectors Signature National Board, State Province, and Endorsements Date:

/4&. r2/

,20 Qh,

FORM NIS-2 OWNERS REPORT FOR REPAIRS OR REPLACEMENT As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Date 6/23/05 Name 4300 WinfIeld Rd. Warrenville, II, 60555 Sheet I

of 1

Address 2.

Plant Byron Nuclear PowerStation Unit 01 Name 4450 N. German Church Road, Byron, Ii.

Work Order No. 00402990-01 Address RepairOrganizateon, P.O. No., Job No., etc.

3.

Work Performed by Byron Mechanical Maintenance Type Code Symbol Stamp Not Applicable Name Authorization No. Not Applicable 4450 N. German Church Road, Byron, II.

Expiration Date NotApplicable Address 4.

Identification of System STATION AIR [SA]

5.

(a) Applicable Construction Code Section III 1986 Edition, 1987 Addenda,(VALVE)

Code Case NONE 19 74 S/75 (PIPE)

(b) Applicable Edition of Section XI Utilized forRepairs or Replacement Components 19 89 (c) Applicable ASME Section XI Code Cases: _N-416-1 6.

Identificationof Components Repaired or Replaced and Replacement Components Name of Con~oncnt Nvneof Manufacturer Mamifacturer Serial No.

National Boacd No.

Other Identification Year Built

Repaired, Repl*ced, or Replacement ASME Codç Stan~ed (Yen or No)

VALVE 1 KEROTEST TKD4-23 11,581 1SA181C 1976 REPLACED YES VALVE 2 FLOWSERVE 47AZL N/A ISAI8IC CATID# 1384035 2004 REPLACEMENT YES 2 3004 S.W.R.F.

FLANGE WESTERN FORGE AND FLANGE C0 HT#3M40774 CODE: BPQ-A-2 N/A ISA77BC CATID#24465 2004 REPLACEMENT NO STUDS-5/8-I 1 THD. ROD NOVA MACHINE PRODUCTS CORP HT#224938 N/A ISA77BC CAT ID#25042 2004 REPLACEMENT NO NUTS-5/8-ll NOVA MACHINE PRODUCTS CORP HT#7220464 N/A ISA77BC CAT 1D~37029 2004 2004 REPLACEMENT NO 2X1 INSERT CONSOLIDATED POWER SUPPLY HT#021J N/A ISA77BC CATID#27472 REPLACEMENT NO 7.

Description of Work REPLACE 1 CHECK VALVE W/ 2 FLANGED CHECK VALVE-ISAI8IC PER EC# 79847.

8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal OperatingPressure

~

Other 0 Pressure 245 psi Test Temp. 87.4

°F Note: Supplemental sheets in form oflists, sketches, or drawings maybe used, provided (I) size is 8-1/2 in. x 11 in.,

(2) information in items I through 6 on this report is included on each sheet, and (3) each sheet is numbered andthe numberof sheets is recorded atthe top ofthis form.

This form has been electronically generated.

FORM NIS-2 (Back) 9.

Remarks Work OrderNo. 00402990-01 Applicable Manutacturers l)ata Reports to be attachen CERTIFICATE OF COMPLIANCE We certif~thatthe statements made in the report are correct and this REPLACEMENT conforms to the rules of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate ofAuthorization No. Not Applicable Expiration Date Not Applicable Signed

~

C..t..L Date

~/7

,20 ~

O~

O~CaDna~ien,ate CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issuedby the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois andemployed by HSB CT.

of Hartford, CT have inspect~dth~.componentsdescnbed in this Owners Report during the period

~

to

, and state that to the best of my knowledge and belief, th~Owner hasperformed examinations and tákei~orrectivemeasures described in the Owners Report accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspectornor his employermakes any warranty, expressed or implied, concerning the examinations and corrective measuresdescribed inthis Owners Report. Furthermore, neither the Inspectornor hisemployer shall be liable in anymanner for ~nypersonal injury or property damage or a loss of anykind arising from or connectedwith t inspecti Commissions

/~.-

~f$i(

a National d, Slate PTo,mon. antbadulnonnia Date t~~1 9

,20 ~

n Is

DOCUMENT NO.:

8.0 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIRIREPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 9/20/06 Name 4300 Wlnfleld Road, Warrenville, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00790082-01 Address Repair Organization, P.O. No.,Job No.,etc.

3.

Work Performed by N P S & W VENTURE Type Code Symbol Stamp Not Applicable Name Authorization No.

Not Applicable 36400 S. Essex Road, Wilmington, IL 60481 Expiration Date Not Applicable Address 4.

Identification of System SD STEAM GENERATOR BLOWDOWN 5.

(a) VALVE BODY ASME Section Ill 19 74 Edition, W75Addenda, NO Code Case Applicable Construction Code

PIPING - Applicable ASME Section III 19 74 Edition, S75 Addenda, NO Code Case Construction Code (b) Applicable Edition of Section Xl Used for Repair/Replacement Activity: 2001 Edltion/2003 Addenda (c) Section Xl Code Case(s)

NONE 6.

Identification of Components ASME Name of Name of Manufacturer National Board Other Year Corrected, Removed, or Installed Code Stamped (Yes or No)

Component Manufacturer Serial No.

No.

Identification Built VALVE BODY MASONEILAN D-313-1 N/A 1979 REMOVED NO VALVE BODY MASONEILAN N00196-3-7 N/A CAT ID #25948 1979 INSTALLED NO 2 SCH. 80 PIPE HUNTER CORP.

HT~AA N/A 1SDO1CH S-SD-001-27-3A 1984 REM VED NO 2 SCH. 80 US STEEL HT: A82900 N,A CAT ID #24507 2006 INSTALLED NO 7.

Description of Work REPLACE VALVE BODY & ASSOCIATED PIPING 8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure ~

Exempt 0 Other 0 Pressure 1080 psi Test Temp.

556 Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is81/2in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 (Back) 9.

Remarks Work Order No. 00790082-01 Applicable Manufacturers Data Neports to be attactieci CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conformsto the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of &uthoriz~j9nNo.

Not Applicable Signed

~ç~ S.

~

Date I t/2i.~

,20 °I.

orOwners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued bythe National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have in ed the components described in this Owners Report during the period to i//

/~

, and state that to the best of myknowledge and belief, the ocvner has performe examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neitherthe Inspector nor his employer shall be liable in any manner for any personal injury or property damage o a loss of any kind arising from or connected with this ins ection.

Commissions IlL JJ5~

Inspectors Signature National Board, State Province, and Endorsements Date:

~

j.~

,20

~

T DOCUMENT NO.:

5A REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 9/21/06 Name 4300 Wlnfleld Road, Warrenvllle, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power StatIon Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00790082-11 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron Mechanical Type Code Symbol Stamp Not Applicable MaIntenance Name Authorization No.

Not Applicable 4450 N. German Church Road, Byron, IL Expiration Date Not Applicable Address 4.

Identification of System SD STEAM GENERATOR BLOWDOWN 5.

(a) Applicable Construction Code ASME Section Ill 1974 Edition, W75Addenda, NONE Code Case (b) Applicable Edition of Section Xl Used for Repair/Replacement Activity:

2001 EdItlon/2003 Addenda (C) Section Xl Code Case(s)

NONE 6.

Identification of Components ASME Corrected, Code National Removed, or Stamped Nameof Nameof Manufacturer Board Other Year Installed (Yes orNo)

Component Manufacturer Serial No.

No.

Identification Built VALVE PLUG MASONEILAN DRESSER N320189-048-6 87367-22 N/A 1SDO54D 1987 REMOVED NO VALVE PLUG MASONEILAN DRESSER S/N: 070134-9 /

N/A 1SDO54D CAT ID #29440 2006 INSTALLED NO BODY STUDS MASONEILAN INTERNATIONAL MK #B7T N/A 1SDO54D 1979 REMOVED NO BODY STUDS MASONEILAN DRESSER HT: 8869139 HT COD~:D3 N/A 1SD0540 CAT ID #25886 1996 INSTALLEp NO NUTS MASONEILAN INTERNATIONAL MK#2HT N/A 1SDO54D 1979 REMOVED NO NUTS NOVA MACHINE PRODUCTS HT: 8994826

CODE: OJR/D805 N/A 1SDO54D CAT ID #37033 2003 INSTALLED NO 7.

Descnption of Work REPLACE VALVE PLUG, STUDS & NUTS. WELD VALVE STEM TO VALVE PLUG.

VALVE BODY TO BE REPLACED UNDER TASK 01 OF THIS WORK ORDER (SEPARATE RRR/NIS-2).

8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure ~

Exempt 0 Other 0 Pressure 1080 psi TestTemp.

556 Note: Supplemental sheets in form of lists, sketches, ordrawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 (Back) 9.

Remarks Work Order No. 00790082-11 Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of thorization No.

Not Applicable Signed 5/~l-..~~

cci~j Date Ij/~

,20

~

15~i~9 orOwners Designee, Trite CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued bythe National Board of Boiler and Pressure Vessel Inspectors and the State or Province of IllInois and employed by HSB CT of Hart?rd, CT have in~pecJedthe components described in this Owners Report during the period to

///~~Ø~

, and state that to the best of my knowledge and belief, thlOWher has performedex~fninationsand taken corrective measures described In this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neitherthe Inspector nor his employer shall be liable in any manner for any personal injury or pr~pertydan~a or a !oss of any kind arising from or connected with this inspection.

Commissions

/tI-jI$i Inspectors Signature National Board, State Province, and Endorsements Date:

~

j:

.20

~6

DOCUMENT NO.:

DOC #5A REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl 1.

Owner ExeIon Nuclear Date 09/26/06 Name 4300 WInfleld Road, Warrenvllle, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00792341-07 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron Mechanical Type Code Symbol Stamp Not ApplIcable Maintenance Name Authorization No.

Not Applicable 4450 N. German Church Road, Byron, IL Expiration Date Not Applicable Address 4.

Identification of System SD STEAM GENERATOR BLOWDOWN 5.

(a) Applicable Construction Code ASME Section III 1974 Edition, W75Addenda, NO Code Case (b) Applicable Edition of Section Xl Used for Repair/Replacement Activity:

2001 Edltlon/2003 Addenda (c)Section XI Code Case(s)

NONE 6.

Identification of Components ASME Corrected, Code National Removed, or Stamped Nameof Nameof Manufacturer Board Other Year Installed (Yes orNo)

Component Manufacturer Serial No.

No.

Identification Built VALVE PLUG MASONEILAN N.00196-3-3 N/A 1SDOO2A 1988 REMOVED NO VALVE PLUG MASONEILAN B1602H-9 CAT ID#

0000030848 2006 INSTALLED NO 7.

Description of Work REPLACE VALVE PLUG 8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure 0 Exempt ~

Other 0 Pressure psi Test Temp.

Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 (Back) 9.

Remarks Work Order No. 00792341-07 Applicable Manufacturers Data~Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of AL4J~iorizationNo.

Not ApplIcable Signed

(~~N ~

Date

) if?

,20 L~(i~

\\~

or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding avalid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have in9pe~ptedthe components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, the Owner has performedeiaminations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions Inspectors Signature National Board, State Province, and Endorsements Date:

,V1/ /~/

,20 e6 (Final)

DOCUMENT NO.:

DOC #5A REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Date 9/21/06 Name 4300 Winfield Road, Warrenvllle, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00792347-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron MechanIcal Type Code Symbol Stamp Not Applicable Maintenance Name Authorization No.

Not Applicable 4450 N. German Church Road, Byron, IL Expiration Date Not ApplIcable Address 4.

Identification of System SD STEAM GENERATOR BLOWDOWN 5.

(a) Applicable Construction Code ASME Section III 1974 Edition, W75 Addenda, NO Code Case (b)

Applicable Edition of Section Xl Used for Repair/Replacement Activity: 2001 Edltlon/2003 Addenda (c)

Section Xl Code Case(s)

NONE 6.

Identification of Components ASME Corrected, Code National Removed, or Stamped Name of Name of Manufacturer Board Other Year Installed (Yes orNo)

Component Manufacturer Serial No.

No.

Identification BrUit VALVE PLUG MASONEILAN HT #A12478-5 N/A 1SDOO2H 1988 REMOVED NO VALVE PLUG MASONEILAN S37946-6 N/A CAT lD#29440 1SDOO2H 2006 INSTALLED NO 7.

Description of Work REPLACE VALVE PLUG 8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure 0 Exempt ~

Other 0 Pressure n/a psi Test Temp.

n/a Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 (Back) 9.

Remarks Work Order No. 00792347-01 Applicable Manufacturers Data tiepons to ~e auacnea CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of Au orizati No.

Not Applicable Signed Date I(/t

, 20 ot.

Owne Owners Designee, TItle CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspec~edthe components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neitherthe Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions

~

Inspectors Signature National Board, State Province, and Endorsements Date:

,44r /5

,20 p6 (Final)

[~CUMENT NO.

4-2 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI Name 4300 WInfleld Road, Warrenvllle, IL Sheet 1

of 1

Unit 1

Work Order No. 00819715-01 Type Code Symbol Stamp Not ApplIcable Authorization No.

Expiration Date 4.

Identification of System SD Steam Generator Blowdown 5.

(a) Applicable Construction Code ASME Section Ill 1974 Edition, W175 Addenda, None Code Case (b)

Applicable Edition of Section XI Used for Repair/Replacement Activity:

2001 Edltlon/2003 Addenda (C) Section Xl Code Case(s)

None 6.

Identification of Components Name of Component Name of Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built Corrected, Removed, or Installed ASME Code Stamped (Yes or No)

Stern/Plug Assembly Masoneilan-Dresser S/N 87367-7 N/A ETN: 1SDO54F 1987 Removed No Stern/Plug Assembly Masoneilan-Dresser S/N S37946-8 N/A ETN: 1SDO54F Caty/id:

0001405248-1 2004 Installed No 7.

Description of Work Replace Plug/Stem assembly.

8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic 0 N/A psi Nominal Operating Pressure 0 Exempt ~

Test Temp.

N/A Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

1.

Owner Exelon Nuclear 2.

3.

Date 9/19/06 Address Plant Byron Nuclear Power Station Name 4450 N. German Church Road, Byron, IL Address Work Performed by Byron MechanIcal Maintenance Name 4450 N. German Church Road, Byron, IL Address Repair Organization, P.O. No., Job No., etc.

Not Applicable Not Apollcable

FORM NIS-2 (Back) 9.

Remarks WO 0081971 5-01 Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of Aut~orization o.

Not Applicable Signed

~ç~

~R-

~

Date ________,20 i4~

OwnersDesignee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have in,pected the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, the ocvner has performedexaminations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injuryor property damage or a loss of any kind arising from or connected with this inspection.

Commissions Inspectors Signature National Board, State Province, and Endorsements Date:

/P~, 1/

.20 O&

ER-AA-330-009 Revision 4 Page 31 of 39

[

DOCUMENT NO.:

N/A REV. NO.:

N/A FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Date 9/23/06 Name 4300 WinfIeld Road, Warrenvllle, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00741277-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron Mechanical Type Code Symbol Stamp Not ApplIcable Maintenance Name Authorization No.

Not Applicable 4450 N. German Church Road, Byron, IL Expiration Date Not Applicable Address 4.

5.

6.

Identification of System SI SAFETY INJECTION (a) Applicable Construction Code ASME Section III 1971 Edition, W72 Addenda, NONE Code Case (b) Applicable Edition of Section XI Used for Repair/Replacement Activity:

2001 Edltion/2003 Addenda (c) Section Xl Code Case(s)

NONE Identification of Components Name of Name of Manufacturer National Board Other Year Corrected, Removed, or Installed ASME Code Stamped (Yes or No)

Component Manufacturer Serial No.

No.

Identification Built VALVE COVER KEROTEST S/N: KYA5-3 9568 1SI8900D 1976 INSTALLED YES 7.

Description of Work INSTALL BODY TO CAP SEAL WELD 8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure ~

Exempt 0 Other 0 Pressure 2240 psi Test Temp.

557 Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

ER-AA-330-009 Revision 4 Page 31 of 39 FORM NIS-2 (Back) 9.

Remarks Work Order No. 00741277-01 Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of Aut~orizati~p.,No.

Not Applicable Signed (iT~\\.\\ ~9~~

~

~

Date

,20

~Z

~

L..

~

Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspect,d the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner forany personal injury or prop rty damage or a loss of any kind arising from or connected with this inspection.

Commissions __________________________

Inspectors Signature National Board, State Province, and Endorsements Date:

,4/~4, 4

,20

~

DOCUMENT NO.:

2-1 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI Owner Exelon Nuclear Date 09/23/06 Name 4300 Winfield Road, Warrenville, IL Sheet 1

of 1

Address Plant Byron Nuclear Power Station Unit 01 Name 4450_N. German Church Road, Byron, IL Work Order No. 00741277-08 Address RepairOrganization, P.O. No., Job No., etc.

Work Performed by Byron Mechanical Type Code Symbol Stamp Not Applicable Maintenance Name Authorization No.

Not Applicable 4450 N. German Church Road, Byron, IL Expiration Date Not Applicable Address Identification of System~

SI SAFETY INJECTION (a) Applicable Construction Code ASME Section Ill 1971 Edition, W72 Addenda, N/A Code Case Applicable Edition of Section Xl Used for Repair/Replacement Activity:

2001 Edition/2003 Addenda Section Xl Code Case(s)

N/A Identification of Components ASME Corrected, Code National Removed, or Stamped of Name of Manufacturer Board Other Year Installed (Yes orNo)

Component Manufacturer Serial No.

No.

Identification Built CHECK KEROTEST KYA5-3 9568 1SI8900D 1976 CORRECTED YES 7.

Description of Work EXCAVATE BASE METAL NDE INDICATION ON CAP REFERENCE EC#362682 8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure ~

Exempt 0 2240 psi Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

Other 0 Pressure Test Temp.

557

FORM NIS-2 (Back) 9.

Remarks WO# 741 277-08 Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of Au~orizationNo.

Not Applicable Signed

~-

~

Date

,20 oç.

Owners Designee. Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspected the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, tI(e O~nerhas performed ~xa~inationsand taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neitherthe Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injuryor property damage or a loss of any kind arising from or connected with this inspection.

Commissions L-/1541 Inspectors Signature National Board, State Province, and Endorsements Date:

A/g~ p.f

,20

,~4

[~

DOCUMENT NO.:

4-1 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 09/19/06 Name 4300 Wlnfield Road, Warrenville, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 1

Name 4450 N. German Church Road, Byron, IL Work Order No. 00870274-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron Mechanical Type Code Symbol Stamp Not Applicable MaIntenance Name Authorization No.

Not Applicable 4450 N. German Church Road, Byron, IL Expiration Date Not Applicable Address 4.

Identification of System SI Safety Injection 5.

(a) Applicable Construction Code ASME Section Ill 19 71 Edition, W/72

Addenda, 1553 Code Case (b) Applicable Edition of Section Xl Used for Repair/Replacement Activity: 2001 Edltlon/2003 Addenda (c)

Section XI Code Case(s)

None 6.

Identification of Components ASME Corrected, Code National Removed, or Stamped Name of Name of Manufacturer Board Other Year Installed (Yes or No)

Component Manufacturer Serial No.

No.

Identification Built Dise for 6 Swing Check Valve.

Westinghouse HT #65800 SIN: 2045 NJA EPN: 1S18818C 1976 A

ed emov NO Disc for 6 Swing Check Valve.

Westinghouse HT# 276470 S/N RP-2003

,~

EPN: 1S18818C fl a 7.

Description of Work Replace the check valve discfor better seating.

8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic [1 psi Nominal Operating Pressure 0 Test Temp.

Exempt ~

Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 (Back) 9.

Remarks Reference WO 00870274-01.

Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of Authorization No.

Not Applicable Signed Date

,20 ps,,

Owne orOwners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Ha ord, CT have ins ed the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, t e ner has perform ex inations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xi.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injuryor property dama e or alo of any kind arising from or connected with this inspection.

Commissions Ia

- /IS~

Inspectors Signature National Board, State Province, and Endorsements Date:

~t

.20

I DOCUMENT NO.:

5.2 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Name 4300 Winfield Road, Warrenville. IL Address Plant Byron Nuclear Power Station Name 4450 N. German Church Road, Byron, IL Address 36400 S. Essex Road, Wilmington, IL 60481 Date 09/16/06 Sheet 1

of 1

Unit 01 Work Order No. 00890987-09 Repair Organization, P.O. No., Job No., etc.

Type Code Symbol Stamp Not Applicable Authorization No.

Not Applicable Expiration Date Not Applicable 4.

Identification of System SI (SAFETY INJECTION) 5.

(a)

Applicable Construction Code ASME Section lii 1974 Edition, S75 Addenda, none Code Case (b) Applicable Edition of Section XI Used for Repair/Replacement Activity 2001 Edition / 2003 Addenda (c) Section Xl Code Case(s)

NONE 6.

Identification of Components 8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic El Nominal Operating Pressure 0 psi Test Temp.

Note: Supplemental sheets inform of lists, sketches, or drawings may.be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

2.

3.

Work Performed by N P S & W VENTURE Name Address Name of Component Nameof Manufacturer Manufacturer Serial No.

END BELL FTG CBI CBI contract 74-2256 National Board No.

Other Identification Year Built Corrected, Removed, or Installed ASME Code Stamped (Yes or No)

N/A 1SIO6AA-24 1976 Removed NO Suction Pipe N/A 1SIO6AA-24 2006 Installed NO 7.

Description of Work REMOVED END BELL. INSTALLED SUCTION PIPE COLLAR PER EC 356569 Exempt~

¶

FORM NIS-2 (Back) 9.

Remarks WO# 00890987-09, installed suction pipe collar is a non-code item, the listed component number is from the bill of materials Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of Authorization No.

Not Applicable Signed OatA4 O~.A1A.~

, R~,z~Op/Jizv~.

Date

/i-.2/

,20 06 Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspecpd the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, the Owner has performedexaminations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neitherthe Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from orconnected with this inspection.

Commissions Iii lici Inspectors Signature National Board, State Province, and Endorsements Date:

______________,20 06 (Final)

DOCUMENT NO.:

5.2 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI Owner Exelon Nuclear Date 9/16/06 Name 4300 Winfield Road, Warrenvllle, IL Sheet 1

of 1

Address Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00890987-14 Address Repair O,panlzatlon, P.O. No., Job No., etc.

Work Performed by N P S & W VENTURE Type Code Symbol Stamp Not Applicable Name Authorization No.

Not Applicable 36400 S. Essex Road, Wilmington, IL 60481 Expiration Date Not Applicable Address IdentificatIon of System SI (Safety Injection)

Applicable Construction Code ASME Section Ill 1974 EdItion, S75 Addenda1 Case Applicable Edition of Section Xl Used for Repair/ReplacementActIvity 2001 EditIon / 2003 Addenda Section XI Code Case(s)

NONE Identification of Components ASME Corrected, Code National Removed, or Stamped of Name of Maniiacturer Board Other Year Installed (Yes orNo)

Component Manufacttwer Serial No.

No.

Identification Bunt FTG CBI N/A 1SIO6AB-24 1976 Removed NO Pipe CCI N/A 1SIO6AB-24 2006 Installed NO 7.

Description of Work Removed End Bell, installed suction pipe collar per EC 356569 8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure 0 Exempt~

Other 0 Pressure

_________psi Test Temp.

Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is includedon each sheet, and (3) each sheet is numbered and the number of sheets Is recorded at thetop of this form.

FORM NIS-2 (Back) 9.

Remarks WO# 00890987-14, installed suction pipe collar is a non-code item, the listed component number is from the bill of materials.

Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPUANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of,Apthorization No.

Not Applicable Signed 1/Jiwol (~.itA.~..u. i?PR COO~f)ift)ftroP~

Date

/~2- ~

,20 06 or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspected the components described in this Owners Report during the period to

, and statethat to the best of my knowledge and belief, tie5wner has performed ex~minationsand taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described In this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable In any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions ii~z-Inspectors Signature National Board, State Province, and Endorsements Date:

A~JV/1

,20 06

(

I DOCUMENT NO.:

3.2 REV. NO.:

0 7

FORM NIS-2 OWNERS REPORT FOR REPAIRIREPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 9/16/06 Name 4300 Winfleld Road, Warrenville, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 00908949-01 & -14 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by N P 5 & W VENTURE Type Code Symbol Stamp Not Applicable Name Authorization No.

Not Applicable 364005. Essex Road, Wilmington, IL 60481 Expiration Date Not Applicable Address 4.

Identification of System SI-SAFETY INJECTION 1974 Ed/S75 Piping 5.

(a)

Applicable Construction Code ASME Section III 1971 Edition, W72Addenda, None Code Case (b)

Applicable Edition of Section Xl Used for Repair/Replacement Activity 2001 Edition / 2003 Addenda (c)

Section Xl Code Case(s)

NONE 6.

Identification of Components Name of Component Nameof Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built Corrected, Removed, or Installed ASME Code Stamped (Yes orNo) 2Check Valve Kerotest/Flowserve Corp.

S/N: KYA1-7 7752 1S18819B 1975 Removed YES 2Check Valve Kerotest/Flowserve Corp.

S/N: US6-11

~.

21440 1S18819B 1978 Installed YES 2 Pipe, Sch. 160 Sandvik Inc.

HT# 462460 N/A 1SI18FB/1SI18EB 1977 Removed NO 2 Pipe, Sch. 160 Kerotest/Flowserve (Sanyo Steel)

HT# 805256~

N/A 1SI18FB/1SI18EB 1997 Installed NO 2-1500# Sch.160 Orifice Flange G+W Taylor Bonney Div HT: HK584

N/A Mech. Joint# 31A 1980 Removed NO 2-1500# Sch.160 Orifice Flange Consolidated Power Supply HT: 34811

~

N/A Mech. Joint# 31A 2006 Installed NO 7.

Description of Work REPLACE CHECK VALVE, PIPE STUBS, AND 2-1500# Flange-SCH. 160 Bore 8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure ~

Exempt 0 Other 0 Pressure 755 / 2235 psi Test Temp.

90/108

°F Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number nf ~hnAt~~ rpgnrrl~d~t th~t~nnf thifl ft~rm

FORM NIS-2 (Back) 9.

Remarks WO# 00908949-01 and WO 00908949-14 (Pre-Fabrication Work).

Applicable Manufacturers Data Reports to be attached NOTE: Installed valve with pipe stubs was supplied as an assembly by Flowserve Corp as documented In the attached NR-1 Form.

CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of A orization No.

Not ApplIcable Signed

_~::5 Date I

p

, 20 06 or Owners Designee, Title CERTiFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspeced the components described in this Owners Report during the period to

/~/Jo/8(

, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

~9O4~~(

Commissions

/LL ~

Inspectors Signature National Board, State Province, and Endorsements Date:

IP

,20 06 (Final)

POOR OVALITY OR1CINAL b~I0OO~~%~0I/l~

~(

14k-I P~T CFRnAJR(J MO0U~1CMION[~]

OR 1?~TALIATICNCFREPLAcEM~r(s)0 TONUCI2ARCOMIVNENTSANDS~IF~JN NL~I1ARPOWER PLANTS Plows.rv. Corp.

P.O. #367072:

5.0.

1. R474p-1

~-

-I 7Olflrst Str.t, Williaasport, PA 17701 2.~ Co~onwa2thBdiion Cc~oanv P.O. Sos 767, Chicago, IL 60690

&H~.d

~did.~~i

~m-rtp~pIwt Byron Suclear Station 44S0 S. Gar~anChurch Rna&. 5yrfnl~. IT.

~1f%1fl t~pus1

5. ~

Lao~WI4arr.pI&.J2 1500$ YGlobe Chack Valva

~

Xerotest Manufacturina Corp.

a I

~

~

N/A N/A S/A 1975

~tM$.)

.p

~ Ci~.~urd~nCod....M~..j.U1974 Si~r 1QTS 5/5 1

a~

N/A N/A 7~~~prth

~ ~

1974 Su~.r 1976 s/A

~u_u

~

if

~

~Jl~

N/A I/A N/A

1~~~

LD.~gn._v_i~4I4I?lowserv-. Corp.

m~~--~I~L----&(~Jpr_.atD d.ilpp.u.usirsD p,~.

5500 pi Co~Cu~) I/A W.ld pip. stubs on valves, 12 body to pipe stub wild,

.~

I Nydrotest and seat leakaaa tant wa1~

~

Pine stub. ST *805256 suonli.d by Ceonwealth Idigon c*RTIflCAT$ Of CCMPUANCZ I

V - fliiv~r

-eHfv ih.& Hi. ~

ni.d. thiIH.,~t rt i.id Hi.,~

iiIi.~.M.i..,w i~a~i&

ddwIlsue dsath~

euJ~.toSactianXI.1 th.Ak~4ECod. and~ lb. NadoanI Bead C.d.1Nr.~d.

NadC.S,ciAuthorIzalb~nNo~NR44

~ian 1RaI~up~ea7Jlfl

.HC 7flfll

~

crzrIncAuOFINSPICTJON L_f~h.rI~ Youaa

-hd~Iga~~idf-~ib.u.dbyTh. N.danal lead.(l.Oi, andP,eaw,~

Pannay1v~n4a

~esupIyndby C~.rcialUnion Insurance Co.

~ Boston MA

~~~avW

~vora$&~4m.,rL.Jbe d~j~tai 5 AQI9 ~17

~

lii.

ktciayImawIudpaidb~4d~iep~

~cri,~1-i,~h.b.anençkludin acrordans. wIth5&cllon XI BeadL.~anC.d.NRnd.

~

~

aMthadwawb.dgand~*x y

• iá.~

WIanI)~.4.....4 or bnpBed,, cos~lig

~.Lnaiy niavisfir

~__

099.00586 k.~.?

DOCUMENT NO.:

3.2 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 9/15/06 Name 4300 Winfield Road, Warrenville, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 1

Name 4450 N. German Church Road, Byron, IL Work Order No. 00908951-01, 09 & 14 Address Repair Organization, P.O. No.,,Job No., etc.

3.

Work Performed by N P S & W VENTURE Type Code Symbol Stamp Not Applicable Name Authorization No.

Not ApplIcable 36400 S. Essex Road, Wilmington, IL 60481 Expiration Date Not Applicable Address 4.

Identification of System SI-SAFETY INJECTION 5.

(a)

Applicable Construction Code (Chk\\~lv)ASME Section III 1971 Edition, W72 Addenda, None Code Case Applicable Construction Code(Piping)

ASME Section Ill 1974 Edition, Sf75 Addenda, None (b) Applicable Edition of Section Xl Used for Repair/Replacement Activity 2001 Edition / 2003 Addenda (c) Section Xl Code Case(s)

NONE 6.

identification of Components Name of Component Nameof Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built Corrected, Removed, or Installed ASME Code Stamped (Yes or No) 2 Check Valve

~t~ow~e S/N: US6-2 21438 1SI8819C 1978 Removed YES 2 Check Valve

~/F1OWS~IV~

S/N: E-467P-1-6 N/A 1S18819C 1999 Installed YES 2 Pipe, Sch. 160 Sanyo Steel HT: 805256 N/A 1SI18EC/1SI18FC 1997 Removed NO 2 Pipe, Sch. 160 HT: 505112 N/A 1SI18EC/1SI18FC 2006 Installed NO

?-1500# Sch.160 Orifice Flange G+W Taylor Bonney Division HT HK584

~

N/A Mech. Joint# 26A 1500# Flange 1980 R

ed emov NO 2-1500# Sch.160 Orifice Flange Consolidated Power Supply HT 479YNE

~

N/A Mech. Joint# 26A 1 500# Flange 2002 I stalled n

NO 7.

Description of Work Replace check valve, pipe stubs, and 2-1500# Flange-SCH. 160 Bore. WO 00908951 Task-Ol installs assembly into the system, Task-09 welded piping to Chk. VIv., Task-14 welded Flange To Pipe.

8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure ~

Exempt0 Other 0 Pressure 755 / 2235 psi Test Temp.

90 I 108

~F Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 (Back) 9.

Remarks WO# 00908951-01 (system installation), Tasks 09 and 14 (Pre-Fabrication Work).

App~icabieManufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of e~thoriza~n No.

Not ApplIcable Signed

~

J($~_ ~

Date i%f4t

,20 06

~~or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued bythe National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have in;pecj~dthe components described in this Owners Report during the period to

/~~4~6

, and state that to the best of my knowledge and belief, th~O~ner has performedex~inationsand taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neitherthe inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neitherthe Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions Ia -//51

~I Inspectors Signature National Board, State Province, and Endorsements Date:

4~W5i2

,20 06 (Final)

[

DOCUMENT NO.:

4-1 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Name 4300 Winfield Road, Warrenville, IL Date 9/26/06 Unit 01 1

Work Order No. 00957225-01/03 Repair Organization, P.O. No., Job No., etc.

Type Code Symbol Stamp Not Applicable 4.

Identification of System SI - SAFETY INJECTION 1~b ~aiuon,nio iwoenaa ~vaive~

5.

(a)

Applicable Construction Code ASME Section III 1974 Edition, S75 Addenda, NONE Code Case (b) Applicable Edition of Section Xl Used for Repair/Replacement Activity:

2001 EditlonI2003 Addenda (C)

Section Xl Code Case(s)

NONE 6.

Identification of Components Nameof Component Name of Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built Corrected, Removed, or Installed ASME Code Stamped (Yes or No)

VENT LINE INSTALLED ON 24 B.W. PIPE CAP 1SIO1B-24 (Spool Sl-14-1) 1-1/2 SOCKOLET Energy&

Process Corp.

HT#GP7O N/A CATID#1416698 1SIK3AA-1 W 2006 INSTALLED NO 1-1/2 PIPE Consolidated Power Supply HT.# 8223J N/A CAT ID #1 226372 1SIK3AA-1 1/2 2001 INSTALLED NO 1-1/2 GATE VALVE Flow Serve ET550-9-3 ~

~

N/A CAT ID #1416683 1SI126A 1993 INSTALLED YES 1-1/2 S.W.R.F.

FLANGE Chicago Tube

& Iron HT# AMBO N/A CAT ID #19984 ISIK3AA-1 1/2 1987 INSTALLED NO 1-1/2 BUND FLANGE Energy &

Process Corp.

HT.Code C5656

N/A CAT ID #37922 1SIK3M-1 W 2000 INSTALLED NO 1/2-13 X 3CAP SCREWS (4)

Nova Machine Products HT.#

USY06420 N/A CAT ID #23225 1SIK3AA-1 1/2 2003 INSTALLED NO 1/2-13 HVY HEX NUTS (4)

Nova Machine Products Ht #B87035 Code: K135 N/A CAT ID #37027 1SIK3AA-1 1/2 2004 INSTALLED NO 7.

Description of Work 8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic 0 Nominal Operating Pressure ~

33 psi Test Temp.

82 Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

2.

3.

Sheet of Address Plant Byron Nuclear Power Station Name 4450 N. German Church Road, Byron, IL Address Work Performed by Byron Mechanical MaIntenance Name 4450 N. German Church Road, Byron, IL Address 2

Authorization No.

Expiration Date Not Applicable Not ApplIcable Install Two Vent Valve/Pipe Spools On Si SupplyHeader Per Ec# 362644 Exempt 0

I DOCUMENT NO.:

4-1 REV. NO.:

0 FORM NIS-2 SUPPLEMENTAL SHEET 1.

Owner Exelon Nuclear Name 4300 Winfleld Road, Warrenville, IL Date 9/26/06 Sheet 2

of 2

Unit 01 Work Order No. 00957225-01/03 Not Applicable Not Applicable i~s~

~OItlOn,NO ~ciaenaa~vaive~

5.

(a) Applicable Construction Code SectIon III 1974 Edition, S75 Addenda, None Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacement Components 2001 Ed/2003 Ad (c)Section XI Code Cases used, None 6.

Identification of Components Repaired or Replaced and Replacement Components Nameof Component Nameof Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year BUilt Removed, ~

Corrected Installed ASME 1 Stamped Code (Yes or No)

VENT LINE INSTALLEDON 24 SIN D PIPE 1SIO1 B-24 (Spool Sl-14-4) 1-1/2 SOCKOLET Energy &

Process Corp.

HT# GP7O

N/A CAT ID #1416698 1SI3AB-1 1/2 2006 INSTALLED NO 1-1/2 PIPE Consolidated Power Supply HT.# 8223J -

N/A CAT ID #1226372 1SI3AB-1 1/2 2001 INSTALLED NO 1-1/2 GATE VALVE Flow Serve ET550-9-10 -~

N/A CAT ID #1416683 1SI126B 1993 INSTALLED YES 1-1/2 S.W.R.F.

FLANGE Chicago Tube &

Iron HT# AMBO N/A CAT ID #19984 1SI3AB-1 1/2 1987 INSTALLED NO 1-1/2 BLIND FLANGE Energy &

Process Corp.

HT.Code C5656 N/A CAT ID #37922 1SI3AB-1 1/2 2000 INSTALLED NO 1/2-13 X 3 CAP SCREWS (4)

Nova Machine Products HT.# USY06420

~

N/A CAT ID #23225 1SI3AB-1 1/2 2003 INSTALLED NO 1/2-13 HW HEX NUTS (4)

Nova Machine Products Ht #B87035 Code: K135 CAT ID #37027 1SI3AB-1 Y2 2004 INSTALLED NO 2.

3.

Address Plant Byron Nuclear Power StatIon Name 4450 N. German Church Road, Byron, IL Address Work Performed by Byron Mechanical Maintenance Name 4450 N. German Church Road, Byron, IL Address Repair Organization, P.O. No., Job No., etc.

Type Code Symbol Stamp Not Applicable 4.

Identification of System SI SAFETY INJECTION Authorization No.

Expiration Date (Final)

4 FORM NIS-2 (Back) 9.

Remarks 00957225-01/03 Applicable Manufacturers Data Reports to be attached CERTiFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of A~thoriza~~p No.

Not Applicable Signed

(~~

~

~

Date 1(/V~

,20 O~

(~~)

orOwners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding avalid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspected the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, tI~Owner has performed ex~fninationsand taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employershall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions

/i~Z-/J3~2 Inspectors Signature National Board, State Province, and Endorsements Date:

,t.~?/ ~7

,20 p~

ENTNO.~.O FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTiVITY As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 9/21/06 Name 4300 WInfield Road. Warrenvllle. IL Sheet Address plant Byron Nuclear Power Station Name 4450 N. German Church Road, Byron, IL Address 1

of 1

Type Code Symbol Stamp Authorization No.

Not Applicable Expiration Date Not ApplIcable 4.

Identification of System ESSENTIAL WATER (SX) 5.

(a) Applicable Construction Code ASME Section III 19 74 Edition, S75 Addenda, 1702 Code Case 1773 (b)

Applicable Edition of Section XI Used for Repair/Replacement Activity 2001 Edition / 2003 Addenda (c)

Section XI Code Case(s)

NONE 6.

Identification of Components Name of Component Name of Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built Corrected, Removed, or Installed ASME Code Stamped (Yes or No)

Butterfly Valve Jamesbury NO.48858-hA N/A 1SX143A 1978 REMOVED YES Butterfly Valve ENERTECH 11534 N/A 1SX143A 2006 INSTALLED YES 7.

Description of Work REPLACE VALVE PER EC 77580 8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic 0 Nominal Operating Pressure ~

97 psi Test Temp.

63 Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

REV.NO.:

0 2.

3.

Work Performed by Unit 01 NPS&W VENTURE Name 36400 S. Essex Road, Wilmington, IL 60481 Work Order No. 00503434-01 Address Repair Organization, P.O. No., Job No., etc.

Not Aoølicable Exempt 0

FORM NIS-2 (Back) 9.

Remarks Work Order No. 00503434-01 Applicable Manufacturers Data ~eponsto oe auacneci CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms tO the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of thorization No.

Not Applicable Signed

~

DeSIgn;, litie Date i t/~I

,20 06 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspec)ed the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, the dwner has pertorme6 examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neitherthe Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspectornor his employershall be liable in any manner for any personal injury orproperty damagp or a loss of any kind arising from or connected with this inspection.

Commissions

///-/I cf L~

Inspectors Signature National Board, State Province, and Endorsements Date:

, 20 06 (Final)

FORM NIS-2 OWNERS REPORT FOR REPAIRS OR REPLACEMENT As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 8/2/05 Name 4300 Winfield Rd. Warrenville, II. 60555 Sheet I of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, II.

Work Order No. 00603161-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron Mechanical Maintenance Type Code Symbol Stamp Not Applicable Name Authorization No. Not Applicable 4450 N. German Church Road, Byron, II. 61010 Expiration Date Not Applicable Address 4.

Identification of System ESSENTIAL SERVICE WATER [SX]

5.

(a) Applicable Construction Code Section Ill 1977 Edition, W78 Addenda,N/A Code Case (b) Applicable Edition of Section Xl Utilized for Repairs or Replacement Components 19 89 (c) Applicable ASME Section XI Code Cases:

None 6.

Identification of Components Repaired or Replaced and Replacement Components Nameof Component Name of Manufacturer Manufact~w Serial No.

National Board No.

Other IdentIfIcatIon Year

~

RepaWed.

Replaced, or Replacement ASME Code; Stamped (Yes or No) 1.5 DIAMETER SEM Tec Inc.

80-52894-4-29 N/A 1SX2165A 1981 REPLACED NO BALL CarpenterTec.

1.5 DIAMETER ITT Industries S/N 746462-1-2 1SX2165A 2004 REPLACEMENT NO BALL HT: 718053-21 N/A 7.

Description of Work REBUILD VALVE REPLACE BALL 8.

Test Conducted: Hydrostatic D PneumaticJ~Nominal Operating Pressure Ei N/A Other 0 Pressure_______ psi Test Temp.______________

°F Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 8-1/2 in. x 11 in.,

(2) information in items I through 6 on this report is included on each sheet, arid (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This form has been electronically generated.

FORM NlS-2 (Back)

RemarksWO# 00603161-01 Apptsable Manufacturees DataReports to be attached CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this REPLACEMENT conforms to the rules of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of Authorization No.

Not Applicable Expiration Date Not Applicable Signed

~

~5~eraoe*L~~

C,~-J.

Date_________,20 Q~,

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by__HSB CT.

of Hartford, CT have ins~pecJedthe components described in this Owners Report during the period 4((~.çf~f to

~~4~5

, and state that to the best of my knowledge and belief, tho#t)ner has performed examir1a~E6nsand taken corrective measures described in the Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report. Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or propertydamage or a loss of any kip&qri~pgfrom nnec e th this inspection.

Commissions

/41 -

t3oed,~MePrevince. arvi E,~1mmei1i Date

~

(~.20 ~5

FORM NIS-2 OWNERS REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Date 1/6/06 Name 4300 Winfleld Road, Warrenville, IL 60555 Sheet 1

of Address 2.

Plant Byron Nuclear Power Station Unit 00 Name 4450_N. German Church Road, Byron, IL 61010 Work Order No. 00722701-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron Mechanical Maintenance Type Code Symbol Stamp NOT APPLICABLE Name Authorization No.

Not Applicable 4450 N. German Church Road, Byron, IL 61010 Expiration Date Not Applicable Address 4.

Identification of System ESSENTIAL SERVICE WATER [SX}

5.

(a)

Applicable Construction Code Section III 1974 Edition, S/76 Addenda, NO Code Case (b) Applicable Edition of Section Xl Utilized for Repairs or Replacement Components 19 89 (c) Section Xl Code Cases used, None 6.

Identification of Components Repaired or Replaced and Replacement Components Name of Component Name of Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built

Repaired, Replaced, or Replacement ASME Code Stamped (Yes or No)

CHECK VALVE ANDERSON GREENWOOD B386

~__________

N/A OSXI43B 1978 Replaced YES CHECK VALVE ANDERSON GREENWOOD 97-61040 N/A Cat id 35908 OSXI43B 1998 Replacement YES 7.

Description of Work REPLACE CHECK VALVE 8.

Test Conducted:

Hydrostatic Li Pneumatic 0 Nominal Operating Pressure Z Other Li Pressure 22 psi Test Temp Ambient

°F Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 8V2 in. x 11 in., (2) information in items I through 6 on thisreport is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded atthe top of this form.

FORM NIS-2 (Back) 9.

Remarks WO# 00722701-01 Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE We certifythat the statements made in the report are correct and this Replacement conform to the rules of the ASME Code, Section Xl.

repairor replacement Type Code Symbol Stamp Not Applicable Certificate of Au~orizationNo.

Not Applicable Signed

(-\\?c\\ ~S~3&

~L Date

,20 17,~

(~j~pr Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspected the components described in this Owners Report during the period to

~

, and state that to the best of my knowledge and belief, the owner has performe~ex~minationsand taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

Bysigning this certificate neitherthe Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

~t~t~%

Commissions Inspectors Signature National Board, State Province, and Endorsements Date:

i-ri.

ç~!7

,20

~7

FORM NIS-2 OWNERS REPORT FOR REPAIRS OR REPLACEMENT As RequIred by the ProvIsIons of the ASME Code Section XI 1.

Owner Exelon Nuclear Name 4300 Wlnfleld Rd. Warrenvllle, II. 60555 Address 2.

Plant Byron Nuclear Power Station Name 4450 N. German Church Road, Byron, II.

7.

Description of Work REPLACE CHECK VALVE.

8.

Test Conducted: Hydrostatic 0 Pneumatic0 Nominal Operating Pressure

~

N/A Other 0 Pressure 73 psi Test Temp.

72

°F Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 8-1/2 in.xll in.,

(2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This form has been electronicallygenerated.

Date 11/08/05 Sheet 1

Unit Work Order No. 00726137-01 of 1

1 Address RepaIr Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron Mechanical Maintenance Type Code Symbol Stamp Not ApplIcable Name Authorization No. Not Applicable 4450 N. German Church Road, Byron, II.

Expiration Date Not ApplIcable Address 4.

Identification of System SX ESSENTIAL SERVICE WATER 5.

(a) Applicable Construction Code Section Ill 1974 Edition, W75 Addenda, NONE Code Cases (b) Applicable Edition of Section Xl Utilized for Repairs or Replacement Components 19 89 (C) Applicable ASME Section Xl Code Cases:

None 6.

Identification of Components Repaired or Replaced and Replacement Components Name 01 Con~onent Name ci Nanufachirer Mw,ufacturer Se,1~No.

Naft~l Board No.

Other IdentIfication Year Built Repelre~

Replaoad.

~ Replacement ASME Cods; Stamped (Yea or No)

ANDERSON S/N:

N/A YES Check Valve GREENWOOD N26076 1SX174 1990 Replaced ANDERSON S/N:A-120 N/A YES Check Valve GREENWOOD 1SX174 1977 Replacement

FORM NIS-2 (Back) 9.

Remarks Work Order No. 00726137-01 Appilcabte Manufadurers OatS Reports to be attactied Replacement check valve was rebuilt under Purchase Order 00403938.

CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this Replacement conforms to the rules of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate o Authorization No.

Not Applicable Expiration Date Signed ~

Not Applicable Date_________,20 OL, CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of IllInoIs and employed by HSB CT.

of Hartford, CT have inspected)he components clescnDed Ifl this Owners Report during the period

,//~>1c to

, and state that to the best of my knowledge and belief, the O*nér has performed e~amWla~Ions and taken corrective measures described in the Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner forany personal injury or propert~çJ~magqora igas of any kind arising from or connected with this inspection.

Commissions

,...,~:fq h

Date J~q.3Q

,20 ~

FORM NIS-2 OWNERS REPORT FOR REPAIRS OR REPLACEMENT As Required by the ProvIsions of the ASME Code Section XI 1.

Owner Exelon Nuclear Name 4300 WinfIeld Rd. Warrenville, II. 60555 Address 2.

Plant Byron Nuclear Power Station Name 4450 N. German Church Road, Byron, II.

of 1

1 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron MechanIcal Maintenance Type Code Symbol Stamp Not ApplIcable Name Authorization No. Not Applicable 4450 N. German Church Road, Byron, II.

Expiration Date Not Applicable Address 4.

Identification of System SX ESSENTIAL SERVICE WATER 5.

(a) Applicable Construction Code Section III 1974 Edition, W75 Addenda, 1567 & 1682 Code Cases (b) Applicable Edition of Section Xl Utilized for Repairs or Replacement Components 19 89 (c) Applicable ASME Section Xl Code Cases:

None 6.

Identification of Components Repaired or Replaced and ReplacementComponents Name ci Component Name 01 Manufacturer Manufacturer Se,iai No.

Natlonai Board No.

Other Identification Year Butt

Repaired, Replaced, or Replacement ASME Code; Stamped (Yes or No)

Valve Disc Anchor/Darling HT: A1608 S/N: R2492 N/A 1SX175 S/N E-6220-4-3 1977 Replaced No Valve Disc Flowserve Corp.

HT:B6516 S/N: 2 N/A 1SX175 CAT ID #008188-1 2000 Replacement YES 7.

Description of Work Rebuild valve, replace disc and stem.

8.

Test Conducted: Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure 0 N/A Other 0 Pressure n/a psi Test Temp.

n/a

°F Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 8-1/2 in.xll in.,

(2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

This form has been electronically generated.

Date 11/08/05 Sheet 1

Unit Work Order No. 00740850-01

FORM NIS-2 (Back) 9.

Remarks Work Order No. 00740850-01 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this Replacement conforms to the rules of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of Authorization No.

Not Applicable Expiration Date Not Applicable Signed

~ ~

C~-y~irJ Date________,20 o~

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT.

of Hartford, CT have inspect9d tije components descnbecl in this Owners Report during the period jc//4~5 to

, and state that to the best of my knowledge and belief, the OWnerfias performed exafhin~fionsand taken corrective measures described in the Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neitherthe Inspector nor his employer shall be liable in any manner for any personal injury or propertv.d~qiagegr a lo~of any kind arising from or connected with this inspection.

Commissions

/I-

,~!5Y ll,p,c~xeSgnesse r~atcnaaced. ~

Pwmre~a~

Date JiM 3~?,20 p~

S 7.

Description of Work Rebuild valve, replace disc 8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure 0 Exempt ~

Other 0 Pressure psi Test Temp.

Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the numberof sheets is recorded at the top of this form.

DOCUMENT NO.:

3-1 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Date 9/21/06 Name 4300WInfleld Road, Warrenvllle, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 01 Name 4450 N. German Church Road, Byron, IL Work Order No. 790200-13 Address RepairOrganization, P.O. No., Job No., etc.

3.

Work Performed by Byron Mechanical Type Code Symbol Stamp Not Applicable MaIntenance Name Authorization No.

Not Applicable 4450N. German Church Road, Byron, IL Expiration Date Not Applicable Address 4.

Identification of System SX Essential Service Water 5.

(a) Applicable Construction Code ASME Section III 1974 Edition, W75 Addenda, none Code Case (b) Applicable Edition of Section XI Used for Repair/Replacement Activity: 2001 EdItionI2003 Addenda (c)

Section XI Code Case(s) none 6.

Identification of Components ASME Corrected, Code National Removed, or Stamped Name of Name of Manufacturer Board Other Year Installed (Yes or No)

Component Manufacturer Serial No.

No.

identifIcation Built DISC DRUMMOND MCCALL &

MAR. SA-515 GR7O N/A 1SXO46A S/N 78G720 1978 riemoved DISC VELAN ENG.

S/N 4~72 N/A Cat Id 23891 2005 Installed No

FORM N1S-2 (Back) 9.

Remarks Work Order No. 790200-13 Applicable Manufacturers vata ~eportsto ~eattacnea CERTiFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate ofAuthorization No.

Not Applicable Signed

(/J~v~4a ~

,~ M/~&?aI2Jj,A)4-IZ),1e Date

/c2/~1O,20 o~

(~Q[~pr Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hajtford, CT have in~pectedthe components described in this Owners Report during the period 4/4/nb to

, and state that to the best of my knowledge and belief, the Owner has performe6e~minationsand taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neitherthe Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injuryor property damage or a loss of any kind arising from or connected with this inspection.

Commissions ___________________________

Inspectors Signature Natlonai Board, State Province, and Endorsements Date:

Af,~14~f

,20 i.~6

DOCUMENT NO.:

4A REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl Owner Exeion Nuclear Date 10/20/06 Name 4300 WinfIeld Road, Warrenville, IL Sheet 1

of 1

Address Plant Byron Nuclear Power Station Unit 00 Name 4450 N. German Church Road, Byron, IL Work Order No. 00846436-01 Address Repair Organization, P.O. No., Job No., etc.

Work Performed by Byron Mechanical Type Code Symbol Stamp Not Applicable Maintenance Name Authorization No.

Not Applicable N. German Church Road, Byron, IL Expiration Date Not Applicable Address Identification of System SX ESSENTIAL SERVICE WATER Applicable Construction Code ASME Section Ill 1974 Edition, S75 Addenda, N/A Code Case Applicable Edition of Section Xl Used for Repair/Replacement Activity: 2001 Edltlon/2003 Addenda Section XI Code Case(s)

N/A Identification of Components ASME Corrected, Code National Removed, or Stamped of Nameof Manufacturer Board Other Year Installed (Yes or No)

Component Manufacturer Serial No.

No.

identification Built 802 N/A N/A N/A OSXA1 BA N/A REMOVED NO 802 HT# A82900 N/A Cat Id 24507-1 2006 INSTALLED NO 7.

Description of Work REMOVE AND REPLACE PIPE SECTION BETWEEN VALVES OSX168A & OSX169A.

THIS PIPE HAS BEEN CHANGED TO ASME CL.3. PER EC# 357135.

PIPE WAS PREVIOUSLY NON-SAFETY RELATED.

8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure ~

Exempt0 Other 0 Pressure 150 psi Test Temp.

52 Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 (Back) 9.

Remarks WO#00846436-01 Applicable Manufacturers uata ~eportsto re attacnea CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of &uthoriza~nNo.

Not Applicable Signed

%.~ )(~E?rj

~

Date I ~/zi..

,20 ~4~

(~~?~rOwners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have in~pect,dthe components described in this Owners Report during the period to

///J7/~

, and state that to the best of my knowledge and belief, tfe Owner has performedex~inationsand taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injuryor ro erty damage a loss of any kind arising from or connected with this ir~spection.

q~4~ir~

Commissions

/fL~,.t~c4 Inspectors Signature National Board, State Province, and Endorsements Date:

/14~/, ~2?,20

~

(Final)

DOCUMENT NO.:

4A REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Date 10/13/06 Name 4300Winfield Road, Warrenville, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 00 Name 4450 N. German Church Road, Byron, IL Work Order No. 00846493-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron Mechanical Type Code Symbol Stamp Not ApplIcable Maintenance Name Authorization No.

Not Applicable 4450 N. German Church Road, Byron, IL Expiration Date Not Applicable Address 4.

Identification of System SX ESSENTIAL SERVICE WATER 5.

(a) Applicable Construction Code ASME Section III 1974 EditIon, S75 Addenda, N/A Code Case (b) Applicable Edition of Section XI Used for Repair/Replacement Activity:

2001 Edition/2003 Addenda (C)Section XI Code Case(s)

N/A 6.

Identification of Components ASME Corrected, Code National Removed, or Stamped Name of Name of Manufacturer Board Other Year Installed (Yes or No)

Component Manufacturer Serial No.

No.

Identification Built PIPE SCHED 802 N/A N/A N/A OSXA1BB N/A REMOVED NO PIPE SCHED 802 HT# A82900 N/A Ci#24507-1 2006 INSTALLED NO 7.

Description of Work REMOVE AND REPLACE PIPE SECTION BETWEEN VALVES OSX198B & OSX169B.

THIS PIPE HAS BEEN CHANGED TO ASME CL.3. PER EC# 357135.

PREVIOUSLY NON-SAFETY RELATED.

8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic 0 148 psi Nominal Operating Pressure ~

Exempt0 Test Temp.

48 Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 (Back) 9.

Remarks WO#00846493-01 Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of Signed Not CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding avalid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hajtford, CT have in~pec~~d the components described in this Owners Report during the period to

///J~2f6

, and state that to the best of my knowledge and belief, the 6wner has pertormedexaminations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions _________________________

Inspectors Signature National Board, State Province, and Endorsements A/fl1 Date:

,20

°6

I DOCUMENT NO.:

4A REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 11/10/06 Name 4300 WInfield Road, Warrenville, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 00 Name 4450 N. German Church Road, Byron, IL Work Order No. 00846494-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron Mechanical Type Code Symbol Stamp Not Applicable MaIntenance Name Authorization No.

Not Applicable 4450 N. German Church Road, Byron, IL Expiration Date Not Applicable Address 4.

Identification of System SX ESSENTIAL SERVICE WATER 5.

(a) Applicable Construction Code ASME Section Ill 1974 Edition, S75 Addenda, N/A Code Case (b) Applicable Edition of Section Xl Used for Repair/Replacement Activity:

2001 Editlon/2003 Addenda (c)

Section XI Code Case(s)

N/A 6.

Identification of Components Name of Component Nameof Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built Corrected, Removed, or installed ASME Code Stamped (Yes or No)

PIPESCHED8O2 N/A N/A N/A OSXA1BD N/A REMOVED NO PUE SCHED 80 2~

HT# A82900 N/A Cat Id #24507-1 2006 INSTALLED NO Note: Supplemental sheets in form of lists, sketches, or drawings maybe used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

PIPE PREVIOUSLY WAS NON-SAFETY RELATED.

7.

Descnption of Work REMOVE AND REPLACE PIPE SECTION BETWEEN VALVES OSX168D & OSX169D.

THIS PIPE HAS BEEN CHANGED TO ASME CL.3. PER EC# 357135.

Other 0 Pressure 8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure ~

Exempt 0 146 psi Test Temp.

50

FORM NIS-2 (Back) 9.

Remarks WO#00846494-01 Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of Au~horizationNo.

Not ApplIcable Signed

...S ~

~

~

Date I,,4~ei.20 D(_

~or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued bythe National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspected the components described in this Owners Report during the period to

//~~~

, and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property ~lama~eor a loss of any kind arising from or connected with this inspection.

Commissions Inspectors Signature National Board, State Province, and Endorsements Date:

~

19

,20 8~

I DOCUMENT NO.:

4A REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl Owner Exelon Nuclear Name 4300 Wlnfleld Road, Warrenville, IL Address 2.

Plant Byron Nuclear Power Station Name 4450 N. German Church Road, Byron, IL Address Date 10/20/06 Sheet 1

of 1

Unit 00 Work Order No. 00846496-01 Repair Organization, P.O. No., Job No.. etc.

Work Performed by Byron Mechanical Maintenance Name 4450 N. German Church Road, Byron, IL Address 4.

Identification of System Type Code Symbol Stamp Authorization No.

Expiration Date SX ESSENTIAL sERvIcE WATER Not Applicable Not Applicable Not Applicable 5.

(a) Applicable Construction Code ASME Section III 1974 Edition, S75 Addenda, N/A Code Case (b) Applicable Edition of Section Xl Used for Repair/Replacement Activity:

2001 EdltIon/2003 Addenda (C)Section XI Code Case(s)

N/A 6.

Identification of Components 7.

Description of Work REMOVE AND REPLACE PIPE SECTION BETWEEN VALVES OSX198C & 0SX169C.

THIS PIPE HAS BEEN CHANGED TO ASME CL.3. PER EC# 357135.

PREVIOUSLY NON-SAFETY RELATED.

8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure ~

Exempt 0 Other 0 Pressure 150 psi Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

Test Temp.

52 3.

FORM NIS-2 (Back) 9.

Remarks WO#00846496-01 Applicable Manufaclurers Data Heports to be attacned CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of As~thorizationNo.

Not Applicable Signed

~

~7~3ç

~

Date I (/~t

.20 ~~é

~

or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued bythe National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Ijarford, CT have ins,ect,d the components described in this Owners Report during the period to

//j~3~, and state that to the best of my knowledge and belief, the (fwner has performeIexa~inationsand taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or roperty da e ora)ss of any kind arising from or connected with this inspection.

Commissions

/~ij~,jc4 Inspectors Signature National Board State Province and Endorsements Date:

~

~7

,20

~

Note: Supplemental sheets in form of lists, sketches, ordrawings maybe used, provided (1) size is 8Y2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

I DOCUMENT NO.:

4A REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 10/20/06 Name 4.300 Winfleld Road, Warrenvllle, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power StatIon Unit 00 Name 4450 N. German Church Road, Byron, IL Work Order No. 00846497-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron Mechanical Type Code Symbol Stamp Not ApplIcable Maintenance Name Authorization No.

Not Applicable 4450 N. German Church Road, Byron, IL Expiration Date Not Applicable Address 4.

Identification of System SX ESSENTIAL SERVICE WATER 5.

(a) Applicable Construction Code ASME Section III 1974 Edition, S75 Addenda, N/A Code Case (b) Applicable Edition of Section XI Used for Repair/Replacement Activity:

2001 Edltlon/2003 Addenda (c)Section XI Code Case(s)

N/A 6.

Identification of Components Nameof Component Nameof Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year BUIlt Corrected, Removed, or Installed ASME Code Stamped (Yes or No)

PIPE SCHED 802 N/A N/A N/A OSXA1BE N/A REMOVED NO PIPE SCHED 802 HT# A82900 N/A Cat ld#24507-1 2006 INSTALLED NO ORIGINAL PIPE WAS NON-SAFETY RELATED 7.

Description of Work REMOVE AND REPLACE PIPE SECTION BETWEEN VALVES OSX168E & OSX169E.

THIS PIPE HAS BEEN CHANGED TO ASME CL.3. PER EC# 357135.

Other 0 Pressure 8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure ~

Exempt 0 150 psi Test Temp.

52 2F

FORM NIS-2 (Back) 9.

Remarks WO#00846497-01 Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of thorization No.

Not Applicable Signed

~

~or

~e;~igne

~

Date 1(74 t

,20

~,

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of IllInois and employed by HSB CT of Hartford, CT have in1pe9ted the components described in this Owners Report during the period to

,//Jt/t~6

, and state that to the best of my knowledge and belief, th6 dwner has pertorme6ex~hiinationsand taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or pr~pertydamage7a loss of any kind arising from or connected with this inspection.

Commissions

- JI,5_4 Inspectors Signature NationalBoard, State Province, and Endorsements Date:

,4/pj/,

,(f

,20 176

I DOCUMENT NO.:

4A REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl 1.

Owner Exelon Nuclear Date 10/13/06 Name 4300 Wlnfield Road, Warrenville, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 00 Name 4450 N. German Church Road, Byron, IL Work Order No. 00846498-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron Mechanical Type Code Symbol Stamp Not Applicable Maintenance Name Authorization No.

Not Applicable 4450 N. German Church Road, Byron, IL Expiration Date Not Applicable Address 4.

5.

6.

Identification of System SX ESSENTIAL SERVICE WATER (a) Applicable Construction Code ASME Section Ill 1974 Edition, S75 Addenda, N/A Code Case (b) Applicable Edition of Section XI Used for Repair/Replacement Activity:

2001 EdItion/2003 Addenda (c)

Section XI Code Case(s)

N/A Identification of Components Nameof Component Nameof Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built Corrected, Removed, or Installed ASME Code Stamped (Yes or No)

PIPE SCHED 802 N/A N/A N/A OSXA1 BF N/A REMOVED NO PIPE SCHED 802 Consolidated Power Supply HT# A82900 N/A OSXA1 BF CI# 24507-1 2006 INSTALLED NO 7.

Description of Work REMOVE AND REPLACE PIPE SECTION BETWEEN VALVES OSX168F & OSX169F.

THIS PIPE HAS BEEN CHANGED TO ASME CL.3. PER EC# 357135.

Pneumatic 0 Nominal Operating Pressure ~

Exempt 0 148 psi Test Temp.

48

¶ Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 8/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

PREVIOUSLY NON-SAFETY RELATEa 8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure

FORM NIS-2 (Back) 9.

Remarks WO#00846498-01 Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of P~ithorizatii9~.

No.

Not Applicable Signed

~

Date _______,20 LX..

Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of,H~rtford,CT have in~pectedthe components described in this Owners Report during the period to

,/)(tç/66

, and state that to the best of my knowledge and belief, the bwner has performedex~ninationsand taken corrective measures described in this Owners Report in acordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injuryor property damag~ra loss of any kind arising from or connected with this inspection.

Commissions ___________________

Inspectors Signature National Board, State Province, and Endorsements Date:

,4%,~/.~(S

,20

~

I DOCUMENT NO.:

4-1 REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Name Date 07/27/06 4300 Winfield Road, Warrenville, IL Address 2

Pl~int Byron Nuclear Power Station Name 4450 N. German Church Road. Byron. IL Address Work Performed by Byron Mechanical Maintenance Name 4450 N. German Church Road, Byron, IL Address 4.

Identification of System SX ESSENTIAL SERVICE WATER 5.

(a) Applicable Construction Code ASME Section III 1974 Edition, W75 Addenda, 1567, 1682 Code Case (b) Applicable Edition of Section Xl Used for Repair/Replacement Activity:

2001 Edition/2003 Addenda (c) Section Xl Code Case(s)

NONE 6.

Identification of Components Name of Component Name of Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built Corrected, Removed, or Installed ASME Code Stamped (Yes or No)

DISC 0U~ERft~.1.OY CASTING CO.

R3480 I{~A1634 N/A OSX161A S/N E-6220-4-9 1978 REMOVED NO DISC FLOWSERVE 05320-X664 N/A OSX161A S/N E-6220-4-9 2006 INSTALLED NO NUT, BONNET NUTS, INC.

HT# X44392 N/A OSX161A S/N E-6220-4-9 1978 REMOVED NO NUT, BONNET OTY. 6 NOVA MACHINE PROD.

HT#B87035 CODE VCF N/A OSX161A CAT ID 37029-1 2000 INSTALLED NO NUT, BONNET OTY. 2 NOVA MACHINE PROD.

HT# 8077124 N/A OSX161A CAT ID 37029-1 2000 INSTALLED NO STUD, BONNET R.E.C. CORP.

HT#: X4.4392 N/A OSX161A S/N E-6220-4-9 1978 REMOVED NO STUD, BONNET NOVA MACHINE PROD.

HTTR#230111 HI CODE ~

N/A OSX161A CAT ID 370921 2005 INSTALLED NO Exempt~

7.

Description of Work REBUILD VALVE, REPLACE DISC, BONNET STUDS & NUTS.

NEW VALVE DISCWILL REQUIRE MACHINING TO FIT THE VALVE.

8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure 0 Other 0 Pressure n/a psi Test Temp.

n/a Note: Supplemental sheets in form of lists, sketches, ordrawings may be used, provided (1) size is 81/2in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

3.

Sheet 1

of Iir~it 00 1

Work Order No. 00907092-01 Repair Organization, P.O. No., Job No., etc.

Type Code Symbol Stamp Not Applicable Authorization No.

Expiration Date Not Applicable Not Applicable

FORM N1S-2 (Back) 9.

Remarks WO# 00907092-01 Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of NotApplicable Signed Owners Designee, Title Date ________,20 c9~~

CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspected the components described in this Owners Report during the period

~4b to

~4JP4~

, and state that to the best of my knowledge and belief, tice (5wner has performed examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or propertydam,~geor a loss of any kind arising from or connected with this inspection.

Commissions Date:

Inspectors Signature I~7 National Board, State Province, and Endorsements

,20,24

I DOCUMENT NO.:

4i REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Date 7/7/06 Name 4300 Winfield Road, Warrenville, IL Sheet 1

of 1

Address 2.

Plant Byron Nuclear Power Station Unit 0

Name 4450 N. German Church Road, Byron, IL Work Order No. 00936532-01 Address Repair Organization, P.O. No., Job No., etc.

3.

Work Performed by Byron Mechanical Type Code Symbol Stamp Not Applicable Maintenance Name Authorization No.

Not Applicable 4450 N. German Church Road, Byron, IL Expiration Date Not_Applicable Address 4.

Identification of System SX Essential ServIce Water 5.

(a)

Applicable Construction Code ASME Section III 1974 Edition, 5/75 Addenda, N/A Code Case (b)

Applicable Edition of Section XI Used for Repair/Replacement Activity: 2001 Edltlon/2003 Addenda (c)

Section Xl Code Case(s)

N/A 6.

Identification of Components ASME Corrected, Code National Removed, or Stamped Nameof Name of Manufacturer Board Other Year Installed (Yes or No)

Component Manufacturer Serial No.

No.

Identification Built Sd~802 Pipe Hunter Corp.

Ht. Cd. AA MAR 4967 Pipe Une OSX85AB-2 emove o

Sch. 802 Pipe Consolidated Power Supply HT:

1 M35684 N/A Pipe Une OSX85AB-2 2005 I

I nsta N0 7.

Description of Work Replace section of pipe between FW-1423 (Tee) and FW-1551 (Elbow) 8.

Test Conducted:

Hydrostatic 0 Pneumatic 0 Nominal Operating Pressure ~

Exempt0 Other 0 Pressure 146 psi Test Temp.

76 Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 (Back) 9.

Remarks WO 00936532-01 Applicable Manufacturers Data Reports to be attached CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp Not Applicable Certificate of A horizat~9gNo.

Not Applicable Signed

~W~t

~

Date _______,20 (21,

~

(~or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspected the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, the ~wnerhas perform~e~minationsand taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions Inspectors Signature National Board, State Province, and Endorsements Date:

,20 4

NO.

7A REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Name 4300 Winfield Road, Warrenville, IL 1

of 1

Type Code Symbol Stamp Not Applicable Authorization No.

Expiration Date 4.

Identification of System SX ESSENTIAL SERVICE WATER 5.

(a) Applicable Construction Code ASME Section III 1974 Edition, S75 Addenda, N/A Code Case (b) Applicable Edition of Section Xl Used for Repair/Replacement Activity: 2001 Editlon/2003 Addenda (c) Section Xl Code Case(s)

N/A 6.

Identification of Components Name of Component Name of Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built Corrected, Removed, or Installed ASME Code Stamped (Yes orNo)

PIPE 2 SCHED 80 GULF STATES TUBE DIV HT: JD1571 MK: AA N/A OSX85AA 1977 REMOVED NO PIPE 2 SCHED 80 CONSOLIDATED POWER SUPPLY HT#

1 M35684 N/A osx~~

CAT ID 24507-1 2005 INSTALLED NO COUPLING 2SCHED. 80(2)

BONNEY FORGE BM35 N/A OSXB5AA 1977 REMOVED NO COUPLING 2 SCHED. 80(2)

CONSOUDATED POWER SUPPLY WFI HT#

297YNB N1A OSX85AA CAT ID 47132.1 1997 INSTALLED NO ELBOW 2 SCHED. 80 (2)

ELBOW 2 SCHED. 80(2)

BONNEY FORGE CONSOLIDATED POWER SUPPLY M240 HT: D35269 Lot: 75661 N/A N/A OSXB5AA OSX85AA CAT ID 47207-1 1977 2005 REMOVED INSTALLED NO NO 7.

Description of Work REPLACE PIPE SECTION AND FITTINGS.

8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic 0 150 psi Nominal Operating Pressure ~

Exempt0 Test Temp.

82 Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

2.

3.

Date 07/26/06 Sheet Unit 00 Address Plant Byron Nuclear Power Station Name 4450 N. German Church Road, Byron, IL Address Work Performed by Byron Mechanical Maintenance Name 4450 N. German Church Road, Byron, IL Address Work Order No. 00941255-01 RepaIr Organization, P.O. No., Job No., etc.

Not Applicable Not Applicable

FORM NIS-2 (Back) 9.

Remarks WO# 00941255-01 Applicable Mafiufacturers Data Reports to béattachd CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of Signed Not CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspe9ed the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, tfce O~nerhas performed examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions

,j~ -J4SV Inspectors Signature Date:

V 20

1. 1~

National Board, State Province, and Endorsements (Final)

~I~~UMENT NO.:

3A REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl Address Plant Byron Nuclear Power Station Name 4450 N. German Church Road, Byron, IL Address Work Performed by Byron Mechanical Maintenance Name 4450 N. German Church Road, Byron, IL Address 4.

Identification of System VA-AUX. BLDG. HVAC 1

of 1

5.

(a) Applicable Construction Code ASME Section III 1974 Edition, S/76 Addenda, N/A Code Case (b) Applicable Edition of Section Xl Used for Repair/Replacement Activity: 2001 Edition/2003 Addenda (C)Section XI Code Case(s)

N/A 6.

Identification of Components Name of Component Nameof Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built Corrected, Removed, or Installed ASME Code Stamped (Yes or No) 3/8-16X4 LOWER HEAD BOLT CARDINAL HT: C72103 N/A 1VAO8S 1992 REMOVED NO 3/8-16X4 LOWER COOLER HEAD BOLT NOVA MACHINE PRODUCTS HT: 8092338 CODE: BVG N/A 1VAO8S CAT. ID: 36960 1996 INSTALLED NO 7.

Description of Work REPLACE ONE LOWER COOLER HEAD BOLT.

8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic 0 psi Nominal Operating Pressure 0 Test Temp.

Exempt~

Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

1.

Owner Exelon Nuclear Date 9/22/06 Name 4300 Winfield Road, Warrenvilie, IL Sheet 2.

3.

Unit 01 Work Order No. 00602001-01 Repair Organization, P.O. No., Job No., etc.

Type Code Symbol Stamp Not Applicable Authorization No.

Expiration Date Not Applicable Not Applicable

FORM NIS-2 (Back) 9.

Remarks WO# 00602001-01 Applicable Manufacturers uata 1-leports to oe attacnea CERTiFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of Aut~orizationNo.

Not Applicable Signed

,-~.

~

~&..

(~-1 Date _______,20 D~

Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued bythe National Board of Boiler and Pressure Vessel Inspectors and the State or Province of Illinois and employed by HSB CT of Hartford, CT have inspe9ted the components described in this Owners Report during the period

~

to

, and state that to the best of my knowledge and belief, theOwner has performede~minationsand taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

Bysigning this certificate neitherthe Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions

//%- //! 1 Inspectors Signature National Board, State Province, and Endorsements Date:

~

If

,20 06

I DOCUMENT NO.:

3A REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl Name 4300 Winfleld Road, Warrenville, IL 1

of 1

Type Code Symbol Stamp Not Applicable Authorization No.

Expiration Date 5.

(a) Applicable Construction Code ASME Section III 1980 Edition, S/80 Addenda, N/A Code Case (b) Applicable Edition of Section XI Used for Repair/ReplacementActivity:

2001 Edltlon/2003 Addenda (C) Section Xl Code Case(s)

N/A 6.

Identification of Components Nameof Component Nameof Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year Built Corrected, Removed, or installed ASME Code Stamped (Yes orNo)

VALVE, REUEF TARGET ROCK S/N: 5 N/A EPN:OWOO28A 2004 REMOVED YES VALVE, REUEF CROSBY VALVE N99949-00-0002 ~

N/A EPN:00028A CAT. ID 1414005 2006 INSTALLED YES 11/2 PIPE GULF STATES TUBE CORP HT#JD1571 MK: AC N/A OWO136AA-1-1/2 PvtJ#1A 1977 REMOVED NO 1-1/2 PIPE CONSOLIDATED POWER SUPPLY HT#: 98766,~,

N/A OWO136AA-1-1/2 MJ#1A 2005 INSTALLED NO FLANGE NATIONAL FLANGE

& ATT1NG HT#: 82242 MK#BDW-77 N/A OWO136AA-1-1/2 M~J#1A 1978 REMOVED NO 1.i/~

FLANGE CONSOLIDATED POWER SUPPLY HT# A050963 ~

Code: CWL-A-1 N/A OWO136AA-1-1/2 MJ#1A 2006 INSTALLED NO 1/2-13 ThREADED ROD NOVA MACHINE PROD.

HT#QKZ N/A OWO136AA-1-1/2

~#1 A 2000 REMOVED NO 1/2-13 HEAVY HEX SCREW NOVA MACHINE PROD.

HT# US Y064201 N/A OWO136AA-1-1/2

?~,tJ#1A 2003 INSTALLED NO 1/2.13 HEAVY HEX NUT NOVA MACHINE PROD.

HT#EVY N/A OWO136AA-1-1/2 MJ#1 A 1997 REMOVED NO 1/2.13 HEAVY HEX NUT NOVA MACHINE PROD.

HT# B87035.J Code: K135 N/A OWO136AA-1-1/2 Pv1J#1A 2004 INSTALLED NO 7.

Description of Work REPLACE RELIEF VALVE, PIPE, FLANGE, NUTS & STUDS. PER EC#355050 8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic 0 32 psi Nominal Operating Pressure ~

Exempt0 Test Temp.

55 Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

1.

Owner Exelon Nuclear 2.

3.

Date 10/28/06 Sheet Unit 00 Address Plant Byron Nuclear Power Station Name 4450 N. German Church Road, Byron, IL Address Work Performed by Byron Mechanical Maintenance Name 4450 N. German Church Road, Byron, IL Address Work Order No. 00803477-02 Repair Organization, P.O. No., Job No., etc.

4.

Identification of System WO - CHILLED WATER Not Appllcable Not Applicable 1974 Edition, S75 Addenda (piping)

FORM NIS-2 (Back) 9.

Remarks WO#00803477-02 / EC#355050 Applicable Manufacturers uata ~eponsto ~eauacnea CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not Applicable Certificate of AI~t~thorization No.

Not Applicable Signed

)~ 5/~_~ ~

~

Date II/1~

,20 y~

or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued bythe National Board of Boiler and Pressure Vessel Inspectors and the State or Province of IllinoIs and employed by HSB CT of Hartford, CT have in9pected the components described in this Owners Report during the period to

,/~

, and state that to the best of my knowledge and belief, t~SeOwner has pertomiec1ex~minations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neitherthe inspector nor his employer shall be liable in any manner for any personal injury or roperty dama$e or a loss of any kind arising from or connected with this inspection.

Commissions Inspectors Signature National Board, State Province, and Endorsements Date:

~(4~ ~7

,20 L9~

(Final)

DOCUMENT NO.:

5A REV. NO.:

0 FORM NIS-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section Xl Owner ExeIon Nuclear Date 4/5/06 Name 4300 Wlnfield Road, Warrenville, IL Sheet 1

of 1

Address Plant Byron Nuclear Power Station Unit 00 Name 4450 N. German Church Road, Byron, IL Work Order No. 00881400-02 Address Repair Organization, P.O. No., Job No., etc.

Work Performed by Byron Mechanical Type Code Symbol Stamp Not Applicable Maintenance Name Authorization No.

Not Applicable 4450 N. German Church Road, Byron, IL Expiration Date Not Applicable Address Identification of System WO CHILLED WATER Applicable Construction Code ASME Section III 1974 Edition, S76*Addenda, 1634-2 Code Case Applicable Edition of Section XI Used for Repair/Replacement Activity:

2001 Edltlon/2003 Addenda Section XI Code Case(s)

NONE Identification of Components ASME Corrected, Code National Removed, or Stamped of Name of Manufacturer Board Other Year Installed (Yes or No)

Component Manufacturer Serial No.

No.

identification Built MTG~FLANGE CARRIER END)

CORP.

202626 139923 OWOO1CB 1978 RRE CO CTED YES (WEST CARRIER COVER)

CORP.

202626 139923 OWOO1CB 1978 RE COR CTED YES 7.

Description of Work REPAIR ERODED AREAS BY WELDING AND MACHINING 8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic 0 72 psi Nominal Operating Pressure ~

Exempt0 Test Temp.

75 Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

FORM NIS-2 (Back) 9.

Remarks WO# 00881400-02 Applicable Manufacture?~ aaRePortsto De attacrieci ASME Section ffl ND-4130 1992 Edition invoked for repair examination criterion.

.~.

.~

CERTiFICATE OF COMPLIANCE I certify that the statements made in the report are correct and this conforms to the requirements of the ASME Code, Section Xl.

Type Code Symbol Stamp NoAPPl1(~b~

Certificate of Auth~ior~No Not Applicable Date

~~or Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned,holding a valid commission issued by the National Board of Boiler and Pressure Vessel inspectors and the State or Province of Illinois and employed by HSB CT of

~Iartf9rd,CT have inspected the components described in this Owners Report during the period to

, and state that to the test of my knowledge and belief, th~OIner has perform~ex&ninations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code, SeCtiOfl XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerningthe examinations and corrective measures deScilbed in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any mannerfor any personal injuryor property dame or a loss of any kind arising from or connected with this inspection.

Commissions ~

4i5/

Inspectors Signature National Board, State Province, and Endorsements Date:

_____________,20

~

FORM NIS-2 OWNERS REPORT FOR REPAIRS OR REPLACEMENT As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Narm 4300 Winfield Rd. Warrenville, Il. 60555 Address 2.

Plant Byron Nuclear Power Station Nan~

4450 N. German Church Road, Byron, Ii.

Date 11/3/05 Sheet I of I

Unit 01 Purchase Order 00403938 Address 3.

Work Performed by Crane Nuclear, Inc Nan~

860 Remington Blvd., Bolingbrook IL 60680-5388 Addesas 4.

Identification of System XX(spare valve)

RepairOrganization, P.O. No., JobNo., etc.

TypeCode Symbol Stamp NR Authorization No. NR-24 Expiration Data February 17,2006 5.

(a)

Applicable Construction Code Section III 1974 Edition, W/75 Addenda,N/A (b) Applicable Edition of Section XI Utilizedfor Repairs or Replacement Components 19 89 6.

Identification of Components Repaired or Replaced and Replacement Components Cede Case Nanar of Conçoneis Maineof Mainiacturer Mauufactwnr Serial Mo.

Natk,nal board No.

Oth~

Ideatificatain Year

~

Repaird.

Rephoed, or Replacement

.ASME Code; Staep,ed (Yes or No)

DISC, VALVE Anderson Greenwood N04-2337-O1O N/A A120 1977 REPLACED NO DISC, VALVE Anderson Greenwood A982-3 N/A A120 1991 REPLACEMENT NO

BUSHING, HINGE PIN Anderson Greenwood N04-2341-003 N/A A120 1977 2005 REPLACED NO

BUSHING, HINGE PIN Consolidated Power Supply HT#9R092-LGO N/A A120 REPLACEMENT NO BOLT, HEX Anderson Greenwood N04-2309-004 N/A A120 1977 REPLACED NO BOLT, HEX NOVA Machine Products HT# 7404339 N/A~

Al 20 200~

REPLACEMENT NO NUT,HEX SLOflED Anderson Greenwood N05-2107-002 N/A A120 1977 REPLACED NO NUT, HEX SLOTFED NOVAMachine Products HT# 8079541 N/A A120 1998 REPLACEMENT NO Valve Body Anderson Greenwood N04-2336-00l N/A A120 1977 Repaired NO Valve Flange Anderson Greenwood N05-2104-023 N/A A120 1977 Repaired NO 7.

Description of Work Weld repairof flange and seating surfaces and replacementof internal valve parts 8.

Test Conducted:

Hydrostatic ~

Pneumatic 0 Nominal Operating Pressure 0.

Other [J Pressure 450 psi TestTemp~.ambient

°F Note: Supplemental sheets in form of lists, sketches, or drawings may be used,provided (1) size is 8-1/2 in. x 11 in.,

(2) information in items 1 through 6 on this report is included on each sheet, and(3) each sheet is numberedand the number of sheetsis recorded atthe top ofthis form.

This form has been electronically generated.

FORM NIS..2 (Back) 9.

Remarks: Repair and replacementper P0 00403938, see attached NR-l for description of vendor work activities.

Applicable Manufacturers Data Repoitsto be attached CERTIFICATE OF COMPLIANCE We certify that thestatements madein the report are correctand this Repair/Replacement conformsto the rules ofthe ASME Code,Section XI.

Type Code Symbol Stamp NOT APPLICABLE Certificate of Authorization No.

NOT APPLICABLE ExpirationDate NOT APPLICABLE Signed J~*AJ~p.

/~4(~~1~))~j

/,4)47v,~

Date

/f - ~

,20 05 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued bythe National Board of Boilerand Pressure Vessel Inspectors and the State or Province of ILLINOIS and employed by H.S.B. CT of Hartford, CT.

have inspecte5l th,e components described in this Owners Report during the period to

, and state that to the best ofmy knowledge and belief, the~w~has performed examinations and tak~n~orrective measures described in the Owners Report in accordance with the requirements of the ASME Code, Section Xl.

By signing this certificateneither the Inspector nor his employermakes any warranty, expressed or implied, concerningthe examinations and corrective measures described in this Owners Report. Furthermore, neither the Inspectornor his employer shall be liable in any mapner forany personal injuryor property damage or a loss of any kind arising from or connected with this inspection.

Commissions

/4j~. ~1~L l,~eoora east bead,ale

~d tudealsailta Date

,4#~/,,~

,20 p5

CORRECTED COPY FORM NR-I REPORT OF REPAIR MODIFICATION OR REPLACEMENT ~

TO NUCLEAR COMPONENTS AND SYSTEMS IN NUCLEARPOWER PLANTS I.

Work performed by CRANE Nuclear. Inc.

(eane OF~4RClDftc,te tot&e) 860 Remington Blvd..Bolingbrook. IL 60440 P0 #000403938, Rev. 004- 002 (P.O ac. job so~

~,~

(

Owner Excion Generation Company LLC

(

P0 Box 805388, Chicago, IL 60680-5388

(.~eai)

Name, address and identification ofnuclear power plant Byron Nuclear Station 4450 North C~ermanChurch Rd., Byron IL 61010 4.

System N/A 5a.

Items Which Required Repair, Modification, or Replacement Activities I TyVeof

~

T Mfg. J Mtg.

kern

~

Name Scrial No, N/A N/A N/A N/A Natl Bet.

No.

Jurisd.

No.

Year Built Edition/

Addenda Code Code Case(s)

- Class N/A N/A N/A N/A N/A

~

N/A N/A N/A

~t I -~1 I.

6.

ASME Code S I

I 1

I I

ection XI applicable tbr inscryice inspection:

None

None (d(ttoi)

(addendS) 7.

ASME Code SectiOn XI used for repairs, modifications, or replacements:

1989 (cdeion)

None (adatcada) 8.

Construction Code used tar repairs, modit,catiotts, or replacements:

1974 (oiit~oo Winter 75 (addmd~)

9.

Design responSib 10.

Tests conduCtc (titles Anderson, Greenwood and Co. (HousonJ2cj d: hydrostatic ~

pneuncatic D design pressure 0 pressure 2.

3.

Sb.

Items Installed During Replacement Activities Identification I

Construction Code None (CodeCea(a))

None COde Cate(s))

None (Code C~s))

p~iCode Case(s)

Pc i~)313~

NATIONAL BOARD INSPECTION CODE LI.

Description ofwork

- Clean & blast valve Body, inepect, grindlmachine Flange & Seating surface, PT Flange &

(sane o(peoçaa(y (dead.d ndd~ioaatiScel(s) at tkcic~4u)~ applicabte)

Surface, repair weld, machine repair area, PT repaw area, reassemble using customer supplied parts, performed Hydrostatic Shell & Seat tests, deaned. ~NRStamped, painted, ship. The following customer supplied parts were

._ti~__~\\.~

Replaced:

PART CAT ID#

SERJAL#

PART CAT ID 

SERIAL#

BushingLlnk 38586-1 N/A

..4lingePinBushing 21094-1 N/AIIT#9R092.LGO Cotter Pin 483579 N/A Torsion Spring 35594-2 N/A Bushing Seal 483607-4 N/A Hinge Pin 38515-1 N/A Hinge Pin Sleeve 483760 N/A Linkage Link 35474-2 N/A B4ptt Seal 496187 N/A Heheojl 35544-2/35544-I N/A 4lex Nut 20610-1 N/A Hi #8079541 Washer

792001

• 4-4ex Screw 20704-1 WA Hi C 7.4O43O97~4339fl46/.~

.,,Valve Plate (DIsc) 21090-1 WAA9S2-3 12.

Remarks CNISONo.27573-02 Description of Valve: 6 Model CVIB-061 5-SCM-N8, I50#, Check Valve Original Equipment Manufacturer was Anderson, Greenwood and Company (Houston, TX)

CERTIFICATE OF COMPLIANCE I,

Jerome A. Kurowski. P.E.

eertity that to thebestofmy knowledge and beliet thestatements made in this report arc Coatect and therepair, moditication or replacement activities described above conform to Scction Xl UI the ASME Code Snd the National Board Inspection Code NR~rules.

National Board Certificate 01 Authonzation No.

NR.24 to use the NR stan~~

expires February Il 2006 NR Certificate Holder CRA E Nuclear, Inc.

Date Nov. 3 2005 Signed

~

Sr. Quality Assurance Engineer (asat~sa~

ne

)

(tithe)

CERTIFICATE OF INSPECTION I.

Lee Malabanan holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspectors and certificate olconspetency issued by the jurisdiction of

Illinois and employed by HSBCT of Hartford, CT have Inspected the repair, moditication orreplacement described in this report on Nov mbe1).,,

2005 and state that to the best olmy knowledge and beliet, this repair, modification or replacenient activity has been completed in accordance with Section XI oIthe ASME Code and the National Board Inspection CodeNR~rules.

By signing this certif,cai~,neither the undersigned nor my employer snakes any warranty, expressed or implied, concerning the work described in this report. Furthermore, neither the undersigned nor my employer shalt be liable an any manner tbr any personal injury, properly damage or a loss ot any kind ansing Irom or connected with this inspection.

Date Nov. 3 2005 Signed

~.___\\~A_.L.t.a___~

Commissions NB 8756 ANI. IL 1085 Nat~astltawd(aa.1 coda.

.nestU,pwndaCUoe. sodaw I tlepccwe) lee Matato*~an

FORM N1S-2 OWNERS REPORT FOR REPAIR/REPLACEMENT ACTIVITY As Required by the Provisions of the ASME Code Section XI 1.

Owner Exelon Nuclear Name 4300 Wlnfield Road, Warrenville. IL 4.

Identification of System Date 10/06/06 Sheet 1

of 1

UnIt 0

Purchase Order No. 406305 Not Applicable ASME Section lii 1974 EditIon, W75 Addenda, NONE Code Case Used for Repair/Replacement Activity: 2001 EdltionI2003 Addenda NONE 6.

Identification of Components 7.

8.

Test Conducted:

Hydrostatic 0 Other 0 Pressure Pneumatic J

Nominal Operating Pressure 0 psi Test Temp.

Note: Supplemental sheets in form of lists, sketches, or drawings may be used, provided (1) size is 81/2 in. x 11 in., (2) information in items 1 through 6 on this report is included on each sheet, and (3) each sheet is numbered and the number of sheets is recorded at the top of this form.

2.

3.

Address Plant Byron Nuclear Power Station Name 4450 N. German Church Road, Byron, IL Address Work Performed by Anderson Greenwood Crosby Name 43 Kendrick St Wrentham, MA 02093 Address RepaIr Organization, P.O. No., Job No., etc.

Type Code Symbol Stamp Not Applicable 5.

(a)

(b)

(C)

Authorization No.

Expiration Date Applicable Construction Code Applicable Edition of Section Xl XX~SPAREVALVE(6uSWING CHECK)

Not ADDlicabie Section Xl Code Case(s)

Name of Component Name of Manufacturer Manufacturer Serial No.

National Board No.

Other Identification Year BuIlt Corrected, Removed,or Installed ASME Code Stamped (Yesor No)

VALVE BODY END FLANGE FACES ANDERSON GREENWOOD NO.4-2336-001 NJA VLV S/N N26076 1990 CORRECTED YES VALVE DISC PLATE ANDERSON GREENWOOD A925-2 N/A VLV S/N N26076 1990 REMOVED NO VALVE DISC PLATE ANDERSON GREENWOOD N97552 006 N/A VLV S/N N26076 2005 INSTALLED NO DRILLED HEX HEAD BOLT ANDERSON GREENWOOD B047 N/A VLV S/N N26076 1993 REMOVED NO DRILLED HEX HEAD BOLT NOVA MACHINE PRflflI ICTS HI: 7404339 N/A VLV S/N N26076 2005 INSTALLED NO SLOTTED HEX NUT NOVA MACHINE HI 8079541 N/A VLV S/N N26076 1991 REMOVED NO

. SLOTTED HEX NUT NOVA MACHINE PRODUCTS HT: 8079541 N/A VLV S/N N26076 1998 INSTALLED NO HINGE PIN BUSHING (2)

ANDERSON GREENWOOD B487 B859 N/A VLV S/N N26076 1999 REMOVED NO S

B859 HINGE PIN ANDERSON 1999 N97556.33-N/A VLV S/N N26076 2005 INSTALLED NO BUSHING (2)

GREENWOOD Description of Work Machine valve body end flange gasket seating surfaces to restore condition. Replace Valve disc, hex head bolt, slotted hex nut and hinge pin bushings.

Exempt~

FORM NIS-2 (Back) 9.

Remarks Purchase Order No. 406305 Applicable Manufacturers Data lieports to oe auacnea CERTIFICATE OF COMPLIANCE I certify that the statements made in the report are correctand this conforms to the requirements of the ASME Code,Section XI.

Type Code Symbol Stamp Not ApplIcable Certificate of At~orizationfip.

Not Applicable Signed (1~

ç~& (~4 Date c~1,20 O&~

Owner r Owners Designee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued bythe National Board of Boiler and Pressure Vessel Inspectors and the State or Province of IllInois and employed by HSB CT of Hartford, CT have ins ed the components described in this Owners Report during the period to

, and state that to the best of my knowledge and belief, e

wner has perform examinations and taken corrective measures described in this Owners Report in accordance with the requirements of the ASME Code,Section XI.

By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerning the examinations and corrective measures described in this Owners Report.

Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or property damage or a loss of any kind arising from or connected with this inspection.

Commissions Inspectors Signature National Board, State Province,and Endorsements Date:

~

//

,20 I~t~

(Final)

Section 6.0 Containment Inservice Inspection Report

BYRON STATION UNIT 1 REFUELING OUTAGE 14 INSERVICE INSPECTION REPORT EC 363076 Rev. 0 EVALUATE CONDITIONS THAT DID NOT MEET THE ACCEPTANCE CRITERIA DURING THE 2~IWL 5-YEAR CONTAINMENT CONCRETE SURVEILLANCE Reason for Evaluation/Scope:

This evaluation is being performed to address all conditions that exceeded the acceptance criteria established by the Owner in surveillance packages for the conduct of the 2nd IWL containment concrete surveillance (per Ref.s 2 & 3) at Byron. These conditions were documented individually in the following IRs:

1)

IR #515883: CORROSION LEVELS FOR TENDON HO1EF-F CAN IN U-2 FAILS AC (the acceptance criteria is no active corrosion).

2) IR #515877: CORROSION LEVELS FOR TENDON HO1AC-C CAN IN U-i FAILS AC (the acceptance criteria is no active corrosion).

The above conditions are evaluated as acceptable since adequate design margins exist and therefore, no repair/replacement is required until the 25th~yrtendon surveillance (scheduled in 2009) where these cans will be replaced like for like.

This evaluation includes the requirements of the Evaluation Report section of Ref.1. As such, the following items have been addressed in this evaluation report:

1) The cause of the condition that does not meet the acceptance criteria,

2) The applicability of condition to the opposite unit,

3) The acceptability of the concrete containment and hence, the acceptability of the condition,

4) Whether or not repair/replacement activity is required and,

5) Extent, nature and frequency of additional examinations.

In the Detailed Evaluation portion of this document, both conditions described in the IRs above are addressed.

Detailed Evaluation:

1) The Unit-2 tendon grease can HO1EF-F and Unit-i tendon grease can HO1AC-C exhibited active corrosion as indicated by the presence of a reddish layer of corrosion on the outer surface of the cans. This condition was observed during the conduct of the 2nd IWL 5-yr containment structure concrete surfaces and exceeded the acceptance criteria established by the Owner (provided in Refs. 3 & 2 respectively and given here as Attachment 1). The grease cans are located at the base of the containment structures in enclosed buttresses with moisture present on the floor of the buttresses. It is the presence of this moisture in this environment that had contributed to the corrosion on the cans. The moisture has since been removed and no source of new moisture has been identified.

Upon close examination of the corrosion condition of the tendon grease cans, it was noted that the corrosion is not in the form of delamination and only as a thin layer of dust. Based upon the freshness of the color of the corrosion products and the fact that these grease cans were not identified as having corrosion in the 1st IWL 5-yr containment concrete surfaces examination Section 6.0 Page 1 of 5

BYRON STATION UNIT 1 REFUELING OUTAGE 14 INSERVICE INSPECTION REPORT EC 363076 Rev. 0 EVALUATE CONDITIONS THAT DID NOT MEET THE ACCEPTANCE CRITERIA DURING THE 2~IWL 5-YEAR CONTAINMENT CONCRETE SURVEILLANCE (Refs 4 & 5), it was determined that active corrosion is taking place. However, it was also determined that only superficial metal loss on the can surfaces had taken place. No corrosion was taking place on the can bolts and the welds also were unaffected.

The tendon grease cans only hold grease and do not serve any other structural function. The grease cans are made out of a 1/8 steel sheet rolled into a tube and welded to two 3/4 thick plates (lid and flange) to complete a cylinder (Ref. 8).

The amount of metal loss due to the observed corrosion is minimal and considering the length of time it has taken for the corrosion to develop, it is acceptable and it will not challenge the structural integrity of the grease cans and the cans will retain their ability to hold grease. The grease can replacement is required during the 25th~yrtendon surveillance (scheduled in 2009 per Refs 6 & 7). Instructions have been added to the work orders (Refs 6 & 7) to ensure replacement cans are procured and installed.

These grease cans will also be inspected one additional time prior to the 3rd 5-yr containment concrete examination surveillance to monitor the condition of the corrosion. This is tracked by ATIs 515883-03 and 515877-03 for Units 2 and 1 respectively. Therefore, although the observed condition exceeded the acceptance criteria established in Refs 2 & 3, it met the acceptance criteria for the external grease can examinations of section 4.3.1 of Ref. 9.

During the conduct of this surveillance, all tendon grease cans at both Units were examined and no active corrosion was observed on any of the remaining grease cans.

The frequency of the containment concrete surfaces examination remains at 5 years with the additional examination scheduled once prior to the 3rd 5-yr surveillance.

==

Conclusion:==

The active corrosion on tendon grease cans HO1EF-F (Unit-2) and HOiAC-C (Unit-i) as documented in this evaluation is acceptable (does not challenge the ability of the tendon grease cans to hold grease) without additional corrective actions until they are replaced in 2009 (per Refs 6 & 7).

The existing frequency of concrete surfaces examination surveillance (every 5 years) is therefore, considered adequate per the current Concrete ISI Program requirements. The additional examinations are tracked by ATIs 515883-03 and 515877-03 for Units 2 and 1 respectively.

References:

1) 2001 Edition with the 2003 Addenda of ASME Section Xl, Subsection IWL, Paragraph IWL-3310

2) WO #7i3045-Oi (Unit-i)

3) WO #713046-01 (Unit-2)

4) WO #99238605-Oi (Unit-2)

Section 6.0 Page 2 of 5

BYRON STATION UNIT 1 REFUELING OUTAGE 14 INSERVICE INSPECTION REPORT EC 363076 Rev. 0 EVALUATE CONDITIONS THAT DID NOT MEET THE ACCEPTANCE CRITERIA DURING THE 2nd IWL 5-YEAR CONTAINMENT CONCRETE SURVEILLANCE

5) WO #99238606-Oi (Unit-i)

6) WO#943328-0i (Unit-i)

7) WO #943330-01 (Unit-2)

8) Inland Ryerson drawing No. i7OWi8R (Attachment 2).

9) ER-AA-330-006 procedure (Rev.03)

Answers to applicable DAR questions:

Question 4.i.4.i:

The containment structures are designed to contain radioactive material that may be released from the reactor core following a design basis Loss Of Coolant Accident.

Additionally, they provide shielding from the fission products that may be present in the containment atmosphere following accident conditions. The tendon grease cans function to hold tendon sheathing protection medium.

Question 4.1.4.2:

The containment structures are Safety-Related.

Question 4.1.4.3:

The containment structures are seismically qualified.

Question 4.i.39:

The tendon grease cans only serve to retain grease and therefore, must only be able to support self weight and any applicable weight of grease (primarily only the grease inside the can). They are not subject to any other civil or structural loading requirements.

Question 4.1.40:

The grease cans are not safety-related and are not seismically qualified.

Preparer:

Nader Vakili Date:

10/20/06 Reviewer:

Ron Janowiak Date:

10/25/06 Approved:

Ken Kovar Date:

10/26/06 Jeff Hendricks Date:

10/3i/06 ANII Representative Section 6.0 Page 3 of 5

BYRON STATION UNIT 1 REFUELING OUTAGE 14 INSERVICE INSPECTION REPORT EC 363076 Rev. 0 EVALUATE CONDITIONS THAT DID NOT MEET THE ACCEPTANCE CRITERIA DURING THE 2nd IWL 5-YEAR CONTAINMENT CONCRETE SURVEILLANCE :

Recordable indications:

Cracks, exposed rebars or other metallic items, grease leakage, moisture, leaching, settlement, deflections, popouts, voids, spalls, honeycombs, bug holes, corrosion, scaling, coating deteriorations (including damage, flaking, blistering, peeling or missing coating), abrasions, wear, efflorescence, deviations from design drawings, and other irregularities.

Acceptance Criteria per IWL 3211 for components subject to the examination Category L-A requirements of IWL subsection (there are no augmented examinations) shall be as follows:

General conditions:

a)

No evidence of unusual contamination, foreign material or debris.

b)

No abrasion, erosion, cavitation, wear or any other degradation mechanism resulting in significant loss of concrete material.

c)

No unusual bulges on containment vessel structure.

d)

No deviation from the design drawings.

e)

No other conditions specified or not specified in the Recordable Indication Type Codes table of Attachment 6 of ER-AA-335-018 procedure that may violate the containment leak-tight integrity.

Tendon anchorage grease cans:

a)

No deformed or sheared threads in the zone of thread engagement of bolts, studs or nuts.

b)

No localized general corrosion that reduces the bolt or stud cross-sectional area.

c)

No bending, twisting or deformation of bolts or studs to the extentthat assembly or disassembly is impaired.

d)

No fractured bolts, studs or nuts.

e)

No evidence of damage or discontinuities that may prevent an acceptable gasket seal between the bearing plate and the grease can.

f)

No bolting conditions that do not meet design/material specifications/drawings.

g)

No evidence of active corrosion.

h)

No evidence of grease leakage exceeding 10% of duct volume of the associate tendon.

Coated and uncoated concrete surfaces:

a)

No evidence of flaking, peeling, blistering, discoloration or other signs of distress other than caused by mechanical damage.

b)

No evidence of active coating wear or erosion.

c)

No appearance of leaching or concrete attack.

d)

No evidence of missing required coating.

e)

No harsh environments that may reduce the life of the coating.

f)

No popouts, scaling, spalls and bug holes of any shape and size that breach the concrete cover.

g)

No corrosion staining of undefined source on the concrete surfaces.

h)

No cracks greater than.04 in maximum width.

i)

No settlement or deflection visible to the unaided eye.

j)

No occurrence of exposed reinforcing steel other than nonstructural exposed rebars, embedded metallic or nonmetallic items that do not adversely impact the structural function of the components.

k)

No apparent patch or repair on the concrete surface.

I)

No wetness other than temporary moisture.

m) No surface Efflorescence other than those from adjacent non-IWL components.

Items exceeding the acceptance criteria shall be considered suspect areas and would require introduction into the plants Corrective Action Program and, resolution in accordance with IWL section 3000 (and applicable parts of section 4.7 of ER-AA-335-018).

If a documented resolution, either complete or ongoing, exists that adequately addresses the as-found observed condition, it need not be considered a suspect area and should be recorded for information only.

Recordable Indications that are not classified as suspect areas do not require documentation in the plants CAP.

Section 6.0 Page 4 of 5

BYRON STATION UNIT 1 REFUELING OUTAGE 14 INSERVICE INSPECTION REPORT EC 363076 Rev. 0 EVALUATE CONDITIONS THAT DID NOT MEET THE ACCEPTANCE CRITERIA DURING THE ~

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Section 6.0 Page 5 of 5