ML18219D825

Response to Letter of 12/9/1977, Forwarding Completed Operating History Questionnaire for Steam Generators

ML18219D825
Person / Time
Site:	Cook
Issue date:	03/14/1978
From:	Tillinghast J Indiana Michigan Power Co, (Formerly Indiana & Michigan Power Co)
To:	Case E Office of Nuclear Reactor Regulation
References
Download: ML18219D825 (68)

Text

oP Pl <g REGULATORY INFORMATION DISTRlBUTION SYSTEM (RIDS)

DISTRlBUTION FOR INCOMING MATERIAL REC:

CASE E G

NRC ORG:

TII LINGHAST J IN 5 MI PWR DOCDATE: 03/14/78 DATE RCVD: 03/20/78 DOCTYPE:

LETTER NOTARIZED:

NO COPIES RECEIVED

SUBJECT:

LTR 1

ENCL 1

RESPONSE

TO NRC "S LTR DTD 12/09/77...

FOWARDING COMPLETED OPERATING HISTORY QUESTIONNAIRE FOR THE STEAM GENERATORS AT SUBJECT FACILITY...NOTORIZED 03/14l?8.

PLANT NAME: COOK UNlT 1

COOK UNIT 2 REVIEWER INITIAL:

XJ DISTR IBUTER INITIAL:

4H~+~~4~4~+~~4++4H~+~~4~~~

DISTRlBUTION OF THIS MATERIAL IS AS FOLLOWS RESPONSES TO STEAM GENERATOR QUESTIONNARE (DISTRIBUTION CODE A023)

FOR ACTION'NTERNAL:

EXTERNAL:

BR C

CER~~~W/7 ENCL FI I ED< W/ENCL HANAUER~~~W/ENCL SHAO~~~W/ENCL BUTLER++W/ENCL J

COLL INST+ W/ENCL LPDR S ST.

JOSEPH.

MI4E4~tJ/ENCL T IC++W/ENCk NS ICE< W/ENCL RON GAMBLE4~+W/6 ENCL KEN HERRING4<~W/6 ENCL ACRS CAT B++W/16 ENCL NRC PDR++W/ENCL OELD++W/ENCL EISENHUT+4 W/ENCL BAER++W/ENCL GR IMES++W/ENCL DISTRIBUTlON:

LTR 50 ENCL 50 SIZE:

2P+43P HH!%8Hf%%8fSl %0HHHH&%8HHHH&%%4%%%%8HHf %SHE %

THE END CONTROL NBR:

78080001&

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INDIANA II MICHIGAN POWER COMPANY P. 0. BOX 18 BOWLING GREEN STATION NEW YORK, N. Y. 10004 Mr. Edson G. Case, Acting Director Office of Nuclear Reactor Regulation U.S. Nuclea'r Regulatory Co'mmission'ashington, D. C 20555 March.'14,,1978 c9>

l

/

Donald C.

Cook Nuclear Plant Units-1 Il2 Ig'ocket Nos. 50-315'nd 50-'316 DPR Nos.

58 and 74

Pis, t) 9 IARg0)y8 eg(~~gt

/p

Dear Mr. Case:

This letter is in respon'se

'to Mr. Karl R. Goller's letter dated December 9,

1977 wh'ich'.'requested response 'to the operating history questionnaire 'for thesteam generators by all PWR licensees.

Enclosed please find a completed questionnaire for the steam generators at theDonald C.

Cook Nuclear Plant.

The responses to this ques'tionnaire

'are *for'he 'Unit No.

1 steam generators since we have 'not'a'd any si*gnificant operating experience on the Unit 2 steam generator's.

The'team generators in both units

, of the Cook Nuclear Plant are 'identical.

Very trulv vours, JT:em Vice President Sworn and subscribed to before me this J&~

day of March, 1978 in New York County, New York Notary Public k'-r%1s>>i'i ('ARJ$Y NOTA(.Y i ge t<,'lein ot New'p No. 41-4606192 Queti(ied in Qr.cans County Cwtilicete tiied in New York Counfjj Conrnussion Expires Mart;h 3Q, 1~2>

(Attached)

$ st I

I

&808000l0 I

4 l

t

~ ~

I

\\

• I

% ~

cc:

R.

C. Callen G. Charnoff P.

W. Sketetee R. J. Vollen R. Nalsh R. V. Jurgensen D. V. Shaller-Bridgman

0 P

ENCLOSURE 1

STEAM GENERATOR OPERATING HISTORY QUESTIONNAIRE II.

'II.

NOTE:

All percentages should be reported to four significant figures.

~ +

BASIC PLANT INFORMATION plant:

Donald C.

Cook Nuclear Plant, Unit 1 Startup 'Date:

Utility:

Indiana

& Michigan Pcwer Company Plant Location:

sridgman, Michigan Thermal power Level:

3250 Mwt Cu>v>p'>)

3 39'I vvIWP'v>>>v>P 4)

Nuclear-Steam Supply System (NSSS) Supplier:

westinghouse Number of Loops:

4 Steam Generator Supplier, Model No. and Type: westinghouse 51 Series Steam Generator Number of Tubes Per Generator:

3384 Tube Size and Material: 7/8" Inconel 600 (Inconel'Aswc -SB-163)

STEAM GENERATOR OPERATING CONDITIONS

~N1 0

Temperature:

512.2'low Rate:

33.9 x 10 lb./hr. Allowable Leakage Rate:

As pep-haec, Specs 6

Primary Pressure:

2250 1GPM total Primary-to-secondary leakage through all. steam generators Secondary Pressure:

758 psia and 500 gallons per-day. th'rougli any-one Steam Generator.

h Design Base LOCA Max. Del ta-P:

No specific analysis has been done since the steam generators are not Main Steam Line Break (HSLB) Max. Delta-P:

in a'degraded condition, STEAM GENERATOR SUPPORT PLATE INFORMATION Material:

SA-285 Grade C

Design Type:

Design Code:

Solid drilled plate typical for the westinghouse 51 Series Steam Generator Dimensions:

Flow Rate:

33.9 x 10 lb./hr.

6 Tube Hole Dimensions:

.891 g.906" Dia L. 891" Flow Hole Dimensions:

~ 750"

. 766" "

750 II Dia

0 i.

c

. 'Y.

STEN GENERATOR BLOHDOWN INFORMATION Frequency of Blowdown:

Continuous Normal Blowdown Rate:

20 gpm/ S/6 Blowdown Rite w/Condenser Leakage <>.5gpm/S/G Chemical Analysis Results Resul ts Parameter Control Limits Normal Values pH Conductivity Cation Conductivity Sodium Ammonia Phosphate Chloride

-Free Hydroxide Silica t

8.8 9.2

<2. Oymho

< 100 ppb

< 0.15 ppm

< 0.15 ppm 1.0 ppm 8.9 5.0 pmho 1.0 ymho 7 ppb 0.5 ppm

-'il Nil Nil Nil V.

HATER CHEMISTRY INFORNTION Secondar Mater Type of Treatment and Effective Full Power

{EFP) Honths of Operation:

AVT Typical Chemistry or Impurity Limits:

Feedwater Oxygen Typical Chemistry c< Impurity Limits:

Hydazie

"'pH Condenser Cool in

';,'ater

>> ~

Typlcal

< 10 ppb 3-5 ppb residual

'9. 2 Typical Typical Chemistry or Impurity imits:

pH 7.2 Na

.100 - 300 ppb Demineralizers - Type:

None I

Cooling Tower (open cycle, c'osed cycle or none):

None

l r

1

~

l

~

h

/

3 TURBINE STOP VALVE TESTING (applicable to Babcock 5 Hilcox {BRM) S.G. on'ly)

Fre uenc of Testin Actual:

manufacturer Recommendati on Power Level At Which Testin Is Conducted Actual:

tlanufacturer Recommendation:.

Testin Procedures (Stroke len th, stroke rate, etc.

Actual:

flanufactur er Recommendati on:

STEN GENERATOR TUBE DEGRADATION HISTORY

'The following is to be repeated for each scheduled ISI)

Inservice Inspection

{ISI) Date: april l3 to /fly l l97G I

Number of

EFP, Days of Operation Since Last Inspection:

. 2G6.37

{The following is to be repeated for each steam generator)

.r Steam Generator Number:

Percentage of Tubes Inspected At This ISI:

Percentage of Tubes Inspected At This ISI That Had Been Inspected At The Previous Scheduled ISI: N/A Percentage of Tubes Plugged Prior to This ISI: NONE

i. 'C Percentage of Tubes Plugged At This ISI: NGNE Percentage of Tubes Plugged That Did Not Exceed Degradation Limits:

NoNg Percentage of Tubes Plugged As A Result of Exceedance of Degradation Limits Sludge Layer Haterial Chemical Analysis Results:

Sludge Lancing (date): Npp DON~

Ave. Height of Sludge Before Lancing:

3 l/2" Max. Localized 1nletside Outlet, side not Recorded Ave. Height of Sludge After Lancing:ng>.

Replacement, Retubing or Other Remedial Action Considered:

(Briefly Specify Details)

NONE Support Plate Hourglassing: NON Support Plate Islanding:

NON<

Tube Hetalurgical Exam Results:

Npp DON~

<7 Fretting or Vibration in U-Bend Area (not applicabl'e to BIIW S.G.)

AS OF ~4 Percentage of Tubes Plugged Other Preventive Heasures NONE N/A

/

Was ta e/Cay itation Eros ion AS OF ~4

~Hot:Le:

{Repeat this "inf'ormation for the cold leg on Co@bastion Engineering (C.E,) and Westinghouse (W) S.G.)

Area of Tube Bundle (1)

X of Tubes Affected by

~

Wastage/Cavitation'rosion X of Tubes PIugged Due to Exceedance of Allowable Limit (2)

X of Tubes Plugged That Did not Exceed Degradation Limit Location Above Tube Sheet (3)

Hax. Wastage/Cavitation Erosion Rate for Any Singlie Tube (Tube Circum. Ave) (Hills/Honth)

Max. Wastage/Cavitation Erosion in Any Single Unplugged Tube (Tube Circum. Ave) (Hills).

b c

d e

RON NON NON Sl&1H FOR COLD LEG

~ Cracking AS OF ~4 Caustic Stress Corrosion Induced in C.E.

and W S.G.

Flow Induced Vibration Caused in BEW S.G.

/

]

'I

~

'l~

~Crackin (Con't)

~me "I e

<nepeat this information for the cold leg on C.E.

and ii S.G:)

Area of Tube Bundle (1)

.c d

e X of Tubes Affected By Cracking 5 of Tubes Plugged Due to

'racking X of Tubes Plugged That Did Not Exceed Degradati on Limit Location Above

( 3)

Tube Sheet Rate of Leakage From Leaking Cracks (gpm)

NO NO NOi SAME -FOR COLD LEG

~(4 cold leg on C.E.. and l< S.G.)

Ho~

Le<O:

(Repeat this information f t

Area of Tube Bundle (1) or the a

b c

e I

~Dentin (Not applicable to BSM S.G.} AS OF X of Tubes Affected by D nting, X of Tubes Plugged Due to Exceedance o'llowable Limit (2) 5 of Tubes Plugged That Did Not Exceed Degradation Limit Rate of Leakage From Leaking'Dents (gpm)

Hax. Denting Rate for Any Single Tube (Tube Circum. Ave) (Hills/Honth)

Hax. Denting in Any Single Unplugged Tube (Tube Circum. Ave) (Hills)"""t NOiV I

NON "

NON" N/A N/A N/a Ibdrqe C,o(d i'>

J t.

C l

Denting (Con't) Support Plate Levels Hax. Denting in Any Single Tube in Bundle Area (Tube Ave) (Mills) (1) c d

X of Tubes'Affected By Denting in Bundle Area 6

SAIK FOR COLD LEG

TURBINE STOP VALVE TESTING (applicable to Babcock 5 Hflcox (B&M) S.G. only)

Fre uenc of Testin Actual:

Manufacturer Recommendation:

Power Level At Which Testin Is Conducted Actual:

Manufacturer Recommendation:

Testin Procedures

{Stroke len th, stroke rate, etc.

Actual:

Manufacturer Recommendation:

STEAM GENERATOR TUBE DEGRADATION HISTORY (The following is to be repeated for each scheduled ISI)

Inservice Inspection (ISI) Da<<:

April 13 to ttay 1, 1976 Number of EFP Days of Operation Since Last Inspection: 266.37

'The following is to be repeated for each steam generator)

Steam Generator Number: 2 Percentage of Tubes Inspected At This ISI:

22%

Percentage of Tubes Inspected At This ISI That Had Been Inspected At The Previous Scheduled ISI: N/~

Percentage of Tubes PluggeC Prior to This ISI:

Percentage of Tubes Plugged At This ISI:

NONE Percentage oi Tubes Plugged That Did Not Exceed Degradation Limits:

Percentage

( f Tubes Plugged As A Result of Exceedance of Degradation Limits:

Sludge Layer Material Chemical Analysis Results:

NONE Sludge Lancing (date):

NOT DONE ef r Lancin '" Hax. J.ocalized 1" sc:altered Ave. Height of Sludge Before Lancing.

{

Ave. Height of Sludge 4 ter Lancing:

Replacement, Retubing ~r Other Remedial Action Considered:

(Briefly Speci fy Detail s)

NONE Support Plate Hour glassing:

NoNE Support Plate IslandingqONE Tube Metalurgical Exam Results:

NOT DONE

0 3

PI

Fretting or Vibration in U-Bend Area (not applicable to BAW S.G.)

AS OF ~4 Percentage of Tubes Plugged Other Pr eventive Heasures NONE N/A Hasta e/Cavitation Erosion AS OF ~4

~Hot:Le:.

{Repeat this information for the caid Ieg'on Coiahustion Engineering (C.E.) and Westinghouse (W) S.G.)

Area of Tube Bundle (1)

X of Tubes Affected by

=

Wastage/Cavitation Erosion X of Tubes Plugged Due.to Exceedance of Allowable Limit (2) b c

d e

N NE X of Tubes Plugged That Did not Exceed Degradation L'sml t:

Locati on Above Tube Sheet (3)

Max'. Wastage/Cavitation Erosion Rate for Any Single Tube (Tube Circum. Ave) (Mills/Month)

Max. Wastage/Cavitation Erosion in Any Single Unplugged Tube (Tube Circum. Ave) (Mills).

N N

.N N/

NE Same for Cold Leg'Crackin AS gF ~a Caustic Stress Corrosion Induced 'in C.E.

and W S.G.

Flow Induced Vibration Caused in B8W S.G.

C.

~Crack'In

'Con '

)

~R5t te

<nepeat this infonsation for the cold leg on C.E.

and H S.G.)

Area of Tube Bundle

.G of Tubes Affected By Cracking 5 of Tubes Plugged Due to

.Cracking

= X of Tubes Plugged That Did Not Exceed Degradation Limit Location Above {3)

Tube Sheet Rate of Leakage From Leaking Cracks (gpm)

ViON NOiJ N/A N/A SAl"K FOR COLD LEG

~Dentin (Hot.applicah'le to BSH S.G.) AS OF ~4 Ho~

Le<O:

(Repeat this information for the cold leg on C.E.

and I< S.G;)

Area of Tube Bundle (1) c d

5 of Tubes Affected by

. Denting X of Tubes Plugged Due to Exceedance of Allowable

. Limit {2)

X of Tubes Plugged That Did Not Exceed Degradation Limit Rate of Leakage From Leaking Dents (gpm)

Hax. Denting Rate for Any Single Tube (Tube Circum. Ave) (Hills/Month)

Hax. Denting in Any Single Unplugged Tube (Tube Circum. Ave) (thrills)'

l NON NON iV SAME FOR COLD LEG

Denting (Con't) Support Plate Levels Max. Denting in Any Single Tube in Bundle Area (Tube Ave) (Mills) (1) 4 of Tubes Affected By Denting in Bundle

. Area 1

.2 5

6

,7 8

9 10ll 12 SMK FOR COLD LEG,

VI.

TURBINE STOP VALYE TESTING {applicable to Babcock

& blilcox (B&M) S.G. only)

Fre uenc of Testin Actual:

'manufacturer Recommendation:

Power Level At Hhich Testin Is Conducted Actual:

Manufacturer Recommendation; Testin Procedures (Stroke len th,.stroke rate, etc.

Actual:

manufacturer Recommendati on:

YII.

STEAN GENERATOR IUBE DEGRADATION HISTORY (The following is to be repeated for each scheduled ISI)

Inservice Inspection (ISI) Date: Aoril:13 to May 1, 1&76 Number of EFP Days of Operation Since Last Inspectiori':266.37 (The following is to be repeated for each steam generator)

Steam Generator Number:

Percentage of Tubes Inspected At This ISI:

gpss Percentage of Tubes Inspected At This ISI That Had Been Inspected At.

The Previous Scheduled ISI:

N/A Percentage of Tubes Plugged Prior to This ISI:

Percentage of Tubes Plugged-At This ISI:

Percentage of Tubes Plugged That Did Not Exceed Degradation Limits:

Percentage of Tubes Plugged As A Result of Exceedance of Degradation Limits:

NONE Sludge Layer Material Chemical Analysis Results:

NONE Sludge Lancing (date):

NoT DoNE Ave. Hei ht of Sludge Before Lancing 3 1/

" to 4" hoax. Localized i>let ve.

eig o

u ge side 1 to 2" llax.'road Area Outlet Ave. Height of Sludge After Lancing: N/A Side Replacement, Retubing or Other Remedial Action Considered:

(Briefly Speci fy Details)

NONE I

Support Plate Hourgl assing: NONE Support Plate Islanding:

Tube Netalurgical Exam Results:

NOT DONE

t I

k

Fretting or Vibration in U-Bend Area (not applicable to BEW S.G.)

AS OF ~4 Percentage of Tubes Plugged Other Preventive Measures NONE Hasta e/Cavitation Erosion AS OF ~4

~Hot:Le

{Repeat this information for the cold leg on Combustion Engineering (C.E.) and Westinghouse (W) S.G.)

~

Area of Tube Bundle (1)

X of Tubes Affected by Wastage/Cavitation Erosion b

c d

NO X of Tubes Plugged Due to'xceedance of Allowable Limit (2)

X of Tubes Plugged That Did not Exceed Degradation Limit Lot.ation Above Tube Sheet (3)

Max. Wastage/Cavitation Erosion Rate for Any Single Tube (Tube Circum. Ave) (Mills/tlonth) flax. Wastage/Cavitation Erosion in Any Single Unplugged Tube (Tube Circum. Ave) (Mills).

NO NO N/

N/de 0E SM'K FOR COLD LEG

~Crackin AS OF ~4 Caustic Stress Corrosion Induced in C.E.

and W S.G.

Flow Induced Vibration Caused in BKW S.G.

s<<

~

~'

~Crackin (Con't)

~BVt Le 5nepeat this information for the cold leg on C.E. and M S.G.)

Area of -Tube Bundle (1) b c

X of Tubes Affected By Cracking

à of Tubes Plugged Due to Cracking X of Tubes Plugged That Did Not Exceed Degradation Limit Location Above

( 3)

Tube Sheet Rate of Leakage From

'eaking Cracks (gpm)

NOh E NON NOh SANE FOR COLD,LEG A

~Dentin (Mot applicable to BLM S.G.} AS OF ~4 3

~lint Le:

(Repeat this information for the cold leg on C.E.

and ii S.G.)

Area of Tube Bundle (1) a b

c.

d 5 of Tubes Affected by

. Denting

.5 of Tubes'lugged Due to Exceedance of Allowable Limit (2) 5 of Tubes Plugged That Did Not Exceed Degradation Limit Rate of Leakage From Leaking Dents (gpm)

Max. Denting Rate for Any Single Tube (Tube Circum. Ave) (Mills/Month)

Max. Denting in Any Single Unplugged Tube (Tube Circum. Ave) (Mills)'.

5 NO E

NOE E N/I N/A SANE FOR COLD LEG

Denting (Con't) Support Plate Levels Hax. Denting in Any Single Tube in Bundle Area (Tube Ave) (Hills) (1)

X of Tubes Affected By Denting in Bundle Area a

1 2

3 5

6

.7 8

9 10 ll 12 N/A SMAE FOR COLD LEG

~ I

VI.

TURBINE STOP VALVE TESTING (applicable to Babcock

& Wilcox (B&W) S.G. only)

Fre uenc of Testin Actual:

Manufacturer Recommendation:

Power Level At Mhich Testin Is'Conducted Actual:

Manufacturer Recommendation; Testin Procedures (Stroke len th, stroke rate, etc.

Actual:

Manufacturer Recommendation:

N.A.

VII.

STEAM GENERATOR TUBE DEGRADATION HISTORY

{The following is to be repeated for each scheduled ISI)

Inser vice Inspection (ISI) Date:

Number of EFP Days of Operation Since Last Inspection: 266.37 (The following is to be repeated for each steam generator)

Steam Generator Number:

4 Percentage of Tubes Inspected At This ISI:

40>

Percentage of Tubes Inspected At This ISI That Had Seen Inspected At

'The Previous Scheduled ISI:

Percentage of Tubes Plugged Prior to This ISI:

.03'5 (l <ube)-

Percentage of Tubes Plugged At This ISI:

NONE Percentage of Tubes Plugged That Did Not Ex;.eed Degradation Limits:

NONp Percentage of Tubes Plugged As A Result of Exceedance of Degradation Limits:

Sludge Layer tlaterial Chemical Analysis Results:

NONE Sludge Lancirig (date):

NOT DONp 3 to 4" Max. Localized Xn'let Side Ave. Height of Sludge Before Lancing: outle< side not done Ave. Height of Sludge After Lancing: N/g Replacement, Retubing or Other Remedial Action Considered:

(Briefly Speci fy Details)

NONg Support Plate Hourglassing:

NONE Support Plate Islanding:

NONL Tube Hetalurgical Exam Results:NOT DONL

Fretting or Vibration in U-Bend Area (not applicable to BM S.G.)

AS OF ~4 Percentage of Tubes Plugged Other Preventive Measures NONE NONE Wasta e Cavitation Erosion AS OF ~4 Kot:Le<O:

{Repeat this information for the cold 'leg on Combustion Engineering (C.E.) and Westinghouse (W) S.G.)

Area of Tube Bundle (1)

X of Tubes Affected by Wastage/Cavitation Erosion C of Tubes Plugged Due to Exceedance of Allowable Limit (2) b c

d e

Noj X of Tubes Plugged That Did not Exceed Degradation Limit Location Above Tube Sheet (3)

Max. Wastage/Cavitation Erosion Rate for Any Single Tube

.(Tube Circum. Ave) (Mills/Month)

Max. Wastage/Cavitation Erosion in Any Single Unplugged Tube (Tube Circum. Ave) (Hills)-

N/

N/

N/

lE S1Q4H FOR

-COLD LHG s

Cracking AS OF ~4 Caustic Stress Corrosion Induced in C.E.

and W S.G.

=

Flow Induced Vibration Caused in B&W S.G.

~Crackin (Con't)

~R5t Le

<nepeat this information'for the cold leg on C.E.

and M S.G.)

Area of Tube Bundle (1) c d

X of Tubes Affected By Cracking X of Tubes Plugged Due to Cracking X of Tubes Plugged That Did Hot Exceed Degradation Limit Location Above (3)

Tube Sheet Rate of Leakage From

. Leaking Cracks (gpm)

ONH ONH ONH Same For Cold Leg

~Oentin (Not applicable to BSM S.G.)

AS OF ~(4 t

Mot LecO:

(Repeat this information for the cold leg on C.E.

and M S.G.)

Area of Tube Bundle (1) c d

X.of Tubes Affected by Denting X of Tubes Plugged Due to Exceedance of Allowable Limit (2)

X of Tubes Plugged That Did Not Exceed Degradation Limit Rate of Leakage From Leaking Dents (gpm)

Max. Denting Rate for Any Single Tube (Tube Circum. Ave) (Mills/Month)

Max. Denting in Any Single Unplugged Tube (Tube Circum. Ave) (Mills)"-"t NO NO N/A E

SAME FOR COLD LEG

Denting (Con't) Support Plate Levels Max. Denting in Any Single Tube in Bundle Area (Tube Ave) (Mills) (1) of Tubes Affected By Denting in Bundle Area a

1 2

3 5

6

~ 7 8

9 10 11 12 Same for Cold Leg

l I

TABLE KEY NOTE:

All percentages refer to the percent of the tubes >vithin a given area of the tube bundle.

Area of the Tube Bundle No. of Tubes Within the Ar'ea'"'.

Periphery of Bundle (wi/20rows for B5M; wi/10 rows for C.E.

and W) b.

Patch Plate (wi/4 rows),

c.

Hissing-Tube Lane (B&W only)

(wi/5 rows)

c.

Flow Slot Areas (C.E.

and W only) wi/10 rows) d.

Wedge Regions (C.E.

and W only)

(wi/8 rows) e.

Interior of Bundle (remainder of'ubes) 1204 366 934 242 1304

~

(2)

Allosiable Limit for Wastage/Cavitation Erosion:

40-". of tubewall Allowable Limit For Dentinc:

Not Detex'mined.

No denting has been detected in these units.

(3) 1.

Specifies area between the tube sheet and the first support plate 2.

Specifies in the foll a ing locations: (list the additional locations)

Wastage/Cavitation Erosion:N/A Cracking:

N~A To date these units have not shown signs of these items

~

(4)

April 13 to Nay 1,1976

~

Specify the date of the inspection for which results'have been tabulated.

"NPi93ER OF TUBES EXCEEDS 3388 DUE TO OVERLAP OF AHAB AS INDICATED ON TfK ATTACHED TUBESHEET MAP.

t

Q S~K(K5 ~el

~~<'-A%

G-C3d G R.Aj'Q A 93 9/89 87K'838l 797775797l

<9 l,7 45b5kl 595755 35/49 4~'2 9o 89 82 QO 78 7<

74 7P. 70 k8

~i%

la~~ 53 tu s< 52 5o 48 4.,

e' H'

VE.

TQRB1NE STOP YALYE TESTING (aPPlicable to Babcock 8 Wilcox (BGM) S.G. only)

Fre uenc of Testin Actual:

Manufacturer Recommendation:

Power Level At Which Testin Is Conducted Actual:

Manufacturer Recommendation:

N ~ A.

Testin Procedures (Stroke len th, stroke rate, etc.

Actual:

Manufacturer Recommendation:

STEAM GENERATOR TUBE, DEGRADATION HISTORY

'The following is to be repeated for each scheduled ISI)

Insenvice Ins)ection (ISI) Date:

February

1977, I

Number of EFP Days of Operation Since Last Inspection:

lg5.57 (The following is to be repeated for each steam generator)

Steam Generator Number:

1 Percentage of Tubes Inspected At This "ISI:

gong Percentage of Tubes Inspected At This ISI That Had Been Inspected At The Previous Scheduled ISI: 8/A Percentage of Tubes Plugged Prior to This ISI:

Noir.'-":"-,'-

Percentage of Tubes Plugged At This ISI:

NOilP Percentage

o. Tubes Plugged That Did Not Exceed Degradation LimitsÃONL Percentage of Tubes Plugged As A Result of Exceedance.of Degradation Limits wows I

Sludge Layer Material Chemical Analysis Results:

See attached analysis Attachment "A"

Sludge Lancing (date):

Ave. Height of Sludge Before Lancing

~ Not Recorded Ave. Hei ght of S1udge After Lancing:

Replacement, Retubing or Other Remedial Action Considered:

(Briefly Specify Details)

Npgp l

Support Plate Hourglassing: NOEL':~

c Support Plate Isl anding; No:4E.

Tube Metalurgical Exam Results:

Not Done

Fretting or Vibration in U-Bend Area (not applicable to BEM S.G.)

AS OF ~4 Percentage of Tubes Plugged Other Preventive Measures NONE NBA.

Masta e/Cavitation Erosion AS OF ~4

~Hot:Le:

(Repeat this information for the cold leg on Coiabustion Engineering (C.E.) and Mestinghouse (M) S.G,)

Area of Tube Bundle (1)

I of Tubes Affects] by Mastage/Cavitation Erosion 5 of Tubes Plugged Due to Exceedance of Allowable Limit (2)

I of Tubes Plugged That Did nest Exceed Degradation Limit Loc=.tion Above Tube Sheet (3)

Max. Mastage/Cavitation Erosion Rate for Any Single Tube (Tube Circum. Ave) (Mills/Month)

Max. Wastage/Cavitation Erosion

,in Any Single Unplugged Tube (Tube Circum. Ave) (Mills).

b c

d e

NONE N/A N A Same for Cold Leg Cr~ackin Ag PF ~A Caustic Stress Corrosion Induced in C.E.

and M S.G.

Flow Induced Vibration Caused in BttM S.G.

~Crackin (Con't)

~Hot Le inepeat this information for the cold leg on C.E.

and ll S.G.)

Area of Tube Bundle

( )

d e

à of Tubes Affected By Cr acking X of Tubes Plugged Due to Cracking X of Tubes Plugged That Did Not Exceed Degradation Limit Location Above (3)

Tube Sheet Rate of Leakage From Leaking Cracks (gpm) non NO&

NOR Same for Cold Leg

~Dentin (Not applicable to 8&M S.G.) AS OF ~4 Ho~

Le<O:

(Repeat this information for the cold leg on C.E.

and M S.G.)

S'rea of Tube Bundle (1) c d

e X of Tubes Affected by Denting X of Tubes Plugged Due to Exceedance of Allowable Limit (2)'

of Tubes Plugged That Did Not Exceed Degradation Limit Rate of Leakage From Leaking Dents (gpm)

Hax. Denting Rate for Any Single Tube (Tube Circum. Ave) (Hills/Month)

Hax. Denting in Any Single Unplugged Tube (Tube Circum. Ave) (Hills)'" l NON1 Same for Cold Leg

Denting (Con't)

- 6.-

Support Plate Levels t3ax. Denting in Any Single Tube in Bundle Area (Tube Ave) (i<ills) (1)

C X of Tubes Affected By Denting in Bundle Area 1

2

~

3 5

6

- 7 8

9 10 11 12 Same d'or Cold Leg,

L

~, '(

1 VI.

TURBINE STOP VALVE TESTING (aPPlicable to Babcock 5 Wilcox.{B51<) S.G. only)

~

~

VII.

Fre uenc of Testin Actual:

Manufacturer Recommendation:

Po~er Level At Which Testin Is Conducted Actual:

l N. A.

Hanufacturer Recommendat ion:

Testin Procedures (Stroke len th, stroke rate, etc.

Actual:

manufacturer Recommendation:

STEAN GENERATOR TUBE DEGRADATION HISTORY (The following is to be repeated for each scheduled ISI)

Inservice Inspection (ISI) Date:

pebruary 1977 Number of EFP.

Days of Operation Since Last Inspection: 195.57 f

w' be r eated for each steam enerator

~'

f

{The olio >ng ss t ep g

)

Steam 'Generator Number:

Percentage of Tubes Inspected At This ISI:

NONE Percentage of Tubes Inspected At This ISI That Had Been Inspected At The Previous Scheduled ISr.:

Percentage of Tubes Plugged Prior to This ISI:

Percentage of Tubes Plugged At This ISI:

NON~

Percentage o

Tubes Plugged That Oid Not Exceed Degradation Limits: NON<

Percentage of Tubes Plugged As A Result of Exceedance of Degradation Limits:

NONL'ludge Layer t<aterial Chemical Analysis Results: See attached analysis Attachment "A"

Sludge Lancing (date): February 1977 Ave. Height of Sludge Before Lancing:

Not recorded Ave. Height of Sludge After Lancing: Not Recorded Replacement, Retubing or Other Remedial Action Considered:

(Briefly Specify Details)

NONE Support Plate Hourgl assing:

Nope Support Plate Isl anding:

Tube Hetalurgical Exam Results:

4

Fretting or Yibration in U-Bend Area (not applicable to B&W S.G.)

AS OF ~4 Percentage of Tubes Plugged Other Preventive Measures NONE'.

A.

Hasta e/Cavitation Erosion AS OF ~4

~Hot:Le:

{Repeat this infornmtion for the cold leg on Cotthnstion Engineering (C.E.)

and Westinghouse (W) S.G.)

Area of Tube Bundle (1) 5 of Tubes Affected by Wastage/Cavitation Erosion X of Tubes Plugged Due to Exceedance of Allowable Limit (2)

% of Tubes Plugged That Did not Exceed Degradation Limit Loca:".ion Above Tube Sheet (3)

Max. Wastage/Cavitation Erosion Rate for Any Single Tube (Tube Circum. Ave) (MHls/Month)

Max. Wastage/Cavitation Erosion in Any Single Unplugged Tube (Tube Circum. Ave) (Mills).

b c

d NO.

E

'N/

iV/7 N/I Same for t

Cold Leg Cr~a::i<in Ag QF ~4 Caustic Stress Corrosion Induced in C.E.

and W S.G.

Flow Induced Yibration Caused in B&W S.G.

~Crackin (Con't)

~IIOt Le Inepeat this information'for the cold leg on C.E. and ll S.G.)

Area of Tube Bundle

(

a b

c d

à of Tubes. Affected By Cracking X of Tubes Plugged Due to Cracking.

5 of Tubes Plugged That Did Not Exceed Degradation Limit Location Above (3)

Tube Sheet Rate of Leakage From Leaking Cracks (gpm)

N NE N NE SANE FOR COLD LEG

\\

J

~0entin (Not applicable to GSG S.G.) AS OF ~4

~Hot Le:

(Repeat this information for the coM leg on C.E.

and II S.G.).

Area of Tube Bundle (1) a b

c d

à of'ubes Affected by

~

Denting X of Tubes Plugged Due to Exceedance of Allowable Limit (2) 5 of Tubes Plugged That Did Not Exceed Degradation Limit Rate of Lea kag e From Leaking Dents (gpm)

Max. Denting Rate for Any Single Tube (Tube Circum. Ave) (Mills/Month)

Max. Denting in Any Single Unplugged Tube (Tube Circum. Ave) (Mills)"- s NON1 NONi NON)

N/A H/A N/A SAME FOR COLD LEG

Denting (Con't) Support Plate Levels tlax. Denting in Any Single Tube in Bundle Area (Tube Ave) (Hills) (1) b c

d X of Tubes Affected By Denting in Bundle Area 1

2 3

5 6

.7 8

10 11 12.

SAITH FO COLD LEG

e I

a I

m m

I 3

TURBINE STOP VALVE TESTING (aPPlicable to Babcock

& Wilcox (B&M) S.G. only)

Fre uenc of Testin Actual:

Manufacturer Recoaeendatson.

Power Level At Which Testin Is Conducted Actual:

Hanufacturer Recommendation:

<<.A.

VII.

Testin Procedures (Stroke len th, stroke rate,. etc.

Actual:

Manufacturer Reconmendation:

STEAtl GENERATOR EUBE DEGRADATION HISTORY (The following is to be repeated for each scheduled ISI)

Inservice Inspection (ISI) Date:

Number of EFP Days of Operation Since Last Inspection:

195. 57 (The following is to be repeated for each steam generator)

Steam Generator Number:

3 Percentage of Tubes Inspected At This ISI:

38. 1 Percentage of Tubes Inspected At This ISI That Had Been Inspected At

'he Previous Scheduled IS1:

Percentage of Tubes Plug:ed Prior to This ISI:

Qp<<'L h

Percentage of Tubes Plugged At This ISI:

Percentage of Tubes Plugged That Did Not Exceed Degradation Limits:

Percentage of Tubes Plugged As A Result of Exceedance of Degradation

<<p<<Q

~

~

Limits:

Sludge Layer Material Chemical Analysis Resultss tta h d An'al~sxs Sludge Lancing (date)

Pebruary lg 77 Attachment

".A" Ave. Height of Sludge 6:fore Lancing:

Ave. Height of Sludge e".fter Lancing: 3" Max. Localized inlet side*

Replacement, Retuhing or Other RemediB%tlon Yons%ere(: +Briefly Specify Details) leap<<F-Support Plate Hourgl assing:

<<p<<L Support Plate Is1anding:

<<p<<H Tube Metalurgical Exam Results:

<<pT Results believed not accurate pending further review of next inspec-tion.

. ~

P J

Fretting or Vibration in U-Bend Area (not applicable.to BfhJ S.G.)

AS OF ~4 Percentage of Tubes Plugged Other Preventive Heasures NONE N/A Wasta e/Cavitation Erosion AS OF ~4

~Hot:Le

{Repeat this information for the cold 1eg on Convocation Engineering (C.E.) and Westinghouse (W) S.G.)

Area of Tube Bundle (1) 4 of Tubes Affected by Wastage/Cavitation Erosion R of Tubes Plugged Due to Exceedance of Allowable Limit (2)

I of Tubes Plugged That Did not Exceed Degradation Limit Location Above Tube Sheet (3)

Hax. Wastage/Cavitation Erosion Rate for Any Single Tube (Tube Circum.

Av'e) (Hills/Honth)

Hax. Wastage/Cavitation Erosion in Any Single Unplugged Tube (Tube Circum. Ave) (Hills).

b c

d e

NO.

NO N/

same for

.cold leg Cracking AS pF ~4 Caustic Stress Corrosion Induced in C.E.

and W S.G.

Flow Induced Vibration Caused in BKW S.G.

d e

~Crackin (Con't)

~HOt Le

<nepeat this information for the cold,leg on C.E.

and H S.G.)

Area of Tube Bundle a

b c

'5 of Tubes Affected By Cracking 5 of Tubes Plugged Due to Cracking I of Tubes Plugged That Did tarot Exceed Degradation Limit Location Above (3)

Tube Sheet Rate of Leakage From Leaking Cracks (gpm)

-no e N

E N

SAME FOR COLD LEG P

~Dentin (Hot applicable.to Gall S.G.} AS OF ~4

~Hot Le:

(Repeat this information for the cold leg on C.E.

and H S.G.)

-Area of Tube Bundle (1) 5 of Tubes Affected by Denting X of Tubes Pluged Due to Exceedance of Allowable Limit (Z)

X of Tubes Plugged That Did Not Exceed Degradation Limit Rate of Leakage From Leaking Dents (gpm)

Max. Denting Rate for Any Single Tube (Tube Circum. Ave) (Hills/Honth)

Hax. Denting in Any Single Unplugged Tube (Tube Circum. Ave) (Hills);""s N

N N

N c

d NE iVE SAME FOR COLD LEG

Denting Support Plate Levels (Con't)

Max. Denting in Any Single Tube in Bundle Area (Tube Ave) (Hills) (1)

X of Tubes Affected By Denting in Bundle Area c

1 2

3 5

6

,7 8

9 10 ll 12 SAME PO COLD LH

I

~'

VE.

TURBINE STOP VALVE TESTING (applicable to Babcock 5 Wilcox (B&W) S,G. on'ly)

Fre uenc of Testin Actual:

Manufacturer Recommendation:

Power Level At Which Testin Is Conducted Actual:

Manufacturer Recommendation:

N ~ A.

VII.

Testin Procedures (Stroke len th, stroke rate, etc.

Actual:

Manufacturer Recommendation:

STEW GENERATOR TUBE DEGRADATION HISTORY

{The following is to be repeated for each scheduled ISI)

Inservice Inspection (ISI) Date:

Febgua~

l977 Number of EFP Days of Operation Since Last Inspection:

195.57 I

(The following is to be repeated for each steam generator)

Steam Generator Number:

Percentage of Tubes. Inspected At This ISI:

38 Percentage of Tubes Inspected At This ISI That Had Been Inspected At The Previous Scheduled ISI:All Percentage of Tubes Plugged Prior to This ISI'QNg Percentage of Tubes Plugged At This ISI: NpgL Percentage of Tubes Plugged That Did Not Exceed Degradation Limits:

Percentage of Tubes Plugged As A Result of xceedance of Degradation Limits:

Sludge Layer Material Chemical Analysis Results'- see attached Analysis Sludge Lancing (date):

I'ebruary 1977

~ Attachment "A"

ancin

. 4" Max. Localized Inlet Side Ave. Height of Sludge After LancingNot recorded Replacement,'etubing or Other Remedial Action Considered:

(Briefly Specify Details)

HQHE Support Plate Hourgl assing:

gQNL Support Plate Islanding:

Np~qL.

Tube Metalurgical Exam Results: >QT Dp><

~,

s t

~

Fretting or Vibration in U-Bend Area (not applicable to BQl S.G.)

AS OF ~4 Percentage of Tubes Plugged Other Preventive Measures HONE Hasta e/Cavitation Erosion AS OF ~4

~Hot:Le (Repeat this information for the cold leg an Combustion Engineering (C.E,) and Westinghouse (W) S.G.)

Area of Tube Bundle (1)

, / of Tubes Affected by Wastage/Cavitation Erosion I of Tub~s Plugged Due to Exceedance of Allowable Limit (2)

I of Tubes Plugged That

'id not Exceed Degradation Limit Location Above Tube Sheet (3)

Max. Wastage/Cavitation Erosion Rate for Any Single Tube (Tube Circum. Ave) (Mills/Month)

Max. Wastage/Cavitation Erosion

,in Any Single Unplugged Tube (Tube Circum. Ave) (Mills).

NON

'ON NON; N/n N/a, c

d e

~1H FOR COLD LEG Cracking AS OF ~4 Caustic Stress Corrosion Induced in C.E.

and H S.G.

Floor Induced Vibration Caused in BEW S.G.

Qr sr ines'

'e, 1

a.

\\

a h

~t ~

I CPBcktB([ (Con't)

~R5t Le Lnepeat this infonaation for the cold leg on C.E.

and M S.G.)

Area of Tube Bundle a.

b c

d e

5 of Tubes Affected By Cracking 5 of Tubes'Plugged Due to Cracking I of Tubes Plugged That Did Not Exceed Degradation Limit Location Above (3)

Tube Sheet Rate of Leakage From Leaking Cracks (gpm)

N NE N NE N NE N A N A SANE FOR COLD LEG sh

~Oentsn (Hot app1>cable to GGM S.G.)

AS OF ~4

~Hot Le:

(Repeat this information for the cold leg on C.E. and ii S.G.)

Area of Tube Bundle (l) b

c e

à of Tubes Affected by Denting 5 of Tubes Plugged Due to Exceedance of Allowable Limit (2)

'5 of Tubes Plugged That Did Not Exceed Degradation Limit Rate of Leakage From Leaking Dents (gpm)

Hax. Denting Rate for Any Single Tube (Tube

.'ircum. Ave) (Hills/month)

Hax. Denting in Any Single Unplugged Tube (Tube

'ircum. Ave) (Hills)."" s NO EE NO lE NO lE N/

N/

SANE FOR COLD LEG

~

1 j

II

Denting (Con't) Support Plate Levels Max. Denting in Any Single Tube in Bundle Area (Tube Ave) (thrills) (1) 5 of Tubes Affected By Denting in Bundle Area 1

2 3

6

.2 8

9 10 ll 12

l I

~

< ~

TABLE KEY NOTE:

All percentages refer to the percent of the tubes within a given

'rea of the tube bundle.

Area of the Tube Bundle No. of Tubes Within the Area"'.

Periphery of Bundle (wi/20rows for BRW; wi/10 rows for C.E. and W) b.

Patch Plate (wi/4 rows) c.

Hissing Tube Lane (BEM only)

(wi/5 rows) c.

Flow Slot Areas (C.E. and W only) wi/10 rows) d.

Wedge Regions (C.E.

and H only)

(wi/8 rows) e.

Interior of Bundle (remainder of tubes) 1204 934 242.

. 1304 (2)

Allowable Limit for Wastage/Cavitation Erosion:A Per te "

~

of wall.

Allowable Limit For Denting:Not determined,.

No dentipg has been detected in these units.

(3) 1.

Specifies area between the tube sheet and the first support plate

2. 'pecifies in the followi.ig locations: (list the additional locations)

(4)

Wastage/Cavitation Erosion:

x>>/A Cracking: g/A To date the Unit 1 Stm.

Gen.

have not shown signs of these items Specify the date of the inspection for which results have been tabulated.

February 19 77.

• NUiiBER OF TUBES EXCEEDS 3308 DUE TO OVEBIAP OF M%AS AS DEDICATED GV T1K ATl'ACHED TUBIQHEET ESP.

82 QO 78 7~~ 74 7Z 70 a8! s 52 50 48 VIII.

SIGNIFICANT STEAN GENERATOR ABNORIQL OPERATIONAL DENTS DATE SUNNARY NONE (Include event description; unscheduled ISI results, if performed; and subsequent remedial actions)

IX, CONDENSER INFOEtATION Condenser, Material Rate (gpm)

Date Tube Leakage Detectable Limit Detection Method Copper 6

S tain les Steel

= O.l pmho incre in cation con-ductivity can detect. a.con-denser leak

~

attached lis ates of con-er leaks.

See of den se Cation Con-ductivity increase dc-

'ected by ives chment "8" z.solatxng ha oZ hotwell X ~

RADIATION EXPOSURE HISTORY HITH RESPECT

>0 STEAN GENERATORS' Date Exam Dosage (Man-Rem)

Repair Dosage (Man-Rem)

Comments Exposure not available in Man-Rem exposures

C Sf

jl/p XI.

DEGRADATION HISTORY FOR EACH TYPE OF DEGRADATION EXPERIENCED FOR TEN REPRESENTATIVE, UNPLUGGED TUBES FOR WHICH THE RESULTS OF TWO OR MORE ISI'S ARE AVAILABLE If the results for ten tubes are not available, specify this infor-mati on for a 1 1 those tubes for which results are avai lab le.

(repeat the. following information for each tube and degradation type)

Steam Generator No; Tube Identifi cation:

N/A Type of Degradation:

(specify denting, wastage,.cavitation

erosion, caustic stress corrosion cracking, or flow induced vibration cracking)

(repeat the following information chronologically for each ISI for which re ults are available)

ISI Date:

Amount of Degradation:

(specify amount and units)

EFP Honths of Operation Since Last ISI for Which Results are Given:

~ >

V t

CA ll I:,

ll l1 gl XTEH UIX ATTACHhKNT "A" Pour sludge samples removed from the four Unit 11 Steam generators during sludge lancing were received fro>chemical analysis.

The sludge was co-lected at the one micron filter used to remove sludge prior to recirculation or discharge of the lancing water.

The amount of sludge removed and the weight of sample received are shown below:

No, 1

153 go.

2 228 No.

3 76 No.

4 190 32352 32353 32354

~ 32355 26.26 26.52

31. 46

18. 46 Samples had been dried at 100 C prior to weighing.

The four samples contained metal filings, metal shavings, weld beads, metallic copper, brush hairs and small amounts of other fiberous material.

These inclusions wore sepaxated from the oxides and smaller metal particles by grinding the samples and, passing them through a

100 mesh screen.

The weights of metal and other inclusions separated were 2.58, 1.84, 10.24 and 3.21 grams for numbers one through four steam generators respectively.

The portions of the samples passing through the 100 screen were analyized with the following results:

( r)

(~)

(3)

Constituent 32352 32353 32354 mesh

(')

32335 Silica, Si02 Xron Oxide, PH203 Aluminum Oxide, A1203 C< lcium Oxide, CaO Magnesium Oxide, Ngo Copper Oxide, CuO C.'irominn Oxide, Cr203

.tanganese Oxide; Nn304 Nickel Oxide, Nio.

Sodium Oxide, Na20 Potassium

Oxide, l(20 Lead Oxide, Pb02 Zinc Oxide, Zn02 Tin Oxide, Sn02 2.4

89. 6 1.3 0.5 0.5 6.9 0.1 0.6 0.4

<O.l

<O.l 0.2.

(0.1

<O.l 3.2 91.7 1.7 0.7 0.9 4.7, 0.2 0.8 0.2

< 0.1

<o.l 0.2

<O.l

<O.l 0.7 90.2 0.5 0.2 0.2

10. 8 0.2 0.6 Q

~ 4

<O.l 0.1 O.l

<O.l

<o.l 1,4 97.5 0.7 0.3 Q

~ 4

'.2 0.2 0.7 0.2

<0. 1

<0.1 0.2

<O.l

<o.l

J (t

i4 4 ~

Constituent Molybdenum Oxide, Mo03 Phosphorous Pentoxide, P20 2

5 Sulfur Trioxide, SO Net Xgnition Gain 32353 (0. 1 0.2 102. 7

-4.0

98. 7 32353 (0. 1 0.2 104. 5

-5.1 32354

<0.1 0.1 (0. 3.

104. 1

-4.3 99.S 32355 (0. 1 0.2 0.1 105. 0

-4.4 100.6

C a

~y

~

~

'7

XX.

Condenser Leaks ATTACIIMENT "D" A NE/ A NW 8/22/75 12/ll/75 10/14/75 12/6/75 1/8/78 12/12/77 9/14/76 A SH/ A SÃ 9/14/76 1/3/77 10/28/76 3/9/76 8 NH/ 8 Ni"l

'/22/75 9/15/76 5/ll/77 I3 SH/ 8 SN 8/22/75 5/31/77 9/15/76 12/15/77 C NH/ C 18"l 1/3/77 3/12/76 8/22/75 12/5/76 C SH/C SW 9/14/76 1/3/77 12/9/77 12/11/76 8/22/75

o j'