ML14031A222

Post-Outage 90-Day Inservice Inspection (ISI) Summary Report

ML14031A222
Person / Time
Site:	Clinton
Issue date:	01/28/2014
From:	Taber B Exelon Generation Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
U-604157
Download: ML14031A222 (158)

Text

m ExeLon Generation.

Clinton Power Station 8401 Power Road Clinton, IL 61727 U-604157 10 CFR 50.55a(g)January 28, 2014 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Clinton Power Station, Unit 1 Facility Operating License No. NPF-62 NRC Docket No. 50-461

SUBJECT:

Post-Outage 90-Day Inservice Inspection (ISI) Summary Report In accordance with 10 CFR 50.55a, "Codes and standards," paragraph (g), "Inservice inspection requirements," Exelon Generation Company (EGC), LLC is required to maintain an Inservice Inspection Program in accordance with the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code. Please find enclosed the Post-Outage (90-Day) ISI Summary Report for Clinton Power Station, Unit 1, for examinations and repair/replacement activities performed between December 23, 2011 (i.e., end of the 1 3 th refueling outage) and October 30, 2013 (i.e., end of the 1 4 th refueling outage).This report is being submitted in accordance with the requirements of ASME Section Xl, Article IWA-6200, Paragraph IWA-6230.

The 1 4 th refueling outage was the first outage in the second inspection period of the third inspection interval that began on July 1, 2010.This letter contains no regulatory commitments.

Please direct any questions you may have regarding this submittal to Mr. Jeffrey Cunningham, Acting Regulatory Assurance Manager, at (217) 937-3160.Respectfully, 1. Keith Taber Site Vice President Clinton Power Station JLP/blf

Attachment:

Clinton Power Station, Inservice Inspection Summary Report cc: Regional Administrator, NRC Region III NRC Senior Resident Inspector

-Clinton Power Station Office of Nuclear Facility Safety -IEMA Division of Nuclear Safety , ,

I E II II Exelon Generation.

N S ERVICE NSPECTION

SUMMARY

REPORT REPORT DATE: INSERVICE DATE: REFUELING OUTAGE: January 27, 2014 April 24, 1987 CIR14 CLINTON POWER STATION 8401 Power Road, Clinton, IL 61727 ii.:1. ý-: I -, I I , : k: D -- ; c 3COCOLI Am Exelon Generation.

Clinton Power Station 8401 Power Road Clinton, IL 61727 U-604157 10 CFR 50.55a(g)January 28, 2014 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Clinton Power Station, Unit 1 Facility Operating License No. NPF-62 NRC Docket No. 50-461

SUBJECT:

Post-Outage 90-Day Inservice Inspection (ISI) Summary Report In accordance with 10 CFR 50.55a, "Codes and standards," paragraph (g), "Inservice inspection requirements," Exelon Generation Company (EGC), LLC is required to maintain an Inservice Inspection Program in accordance with the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code. Please find enclosed the Post-Outage (90-Day) ISI Summary Report for Clinton Power Station, Unit 1, for examinations and repair/replacement activities performed between December 23, 2011 (i.e., end of the 1 3 th refueling outage) and October 30, 2013 (i.e., end of the 1 4 th refueling outage).This report is being submitted in accordance with the requirements of ASME Section Xl, Article IWA-6200, Paragraph IWA-6230.

The 1 4 th refueling outage was the first outage in the second inspection period of the third inspection interval that began on July 1, 2010.This letter contains no regulatory commitments.

Please direct any questions you may have regarding this submittal to Mr. Jeffrey Cunningham, Acting Regulatory Assurance Manager, at (217) 937-3160.Respectfully, B. Keith Taber Site Vice President Clinton Power Station JLP/blf

Attachment:

Clinton Power Station, Inservice Inspection Summary Report cc: Regional Administrator, NRC Region III NRC Senior Resident Inspector

-Clinton Power Station Office of Nuclear Facility Safety -IEMA Division of Nuclear Safety AWExe!on Generation.

IN IN S S ERVICE PECTION

SUMMARY

REPORT REPORT DATE: INSERVICE DATE: REFUELING OUTAGE: January 27, 2014 April 24, 1987 C1R14 CLINTON POWER STATION 8401 Power Road, Clinton, IL 61727 INSERVICE INSPECTION

SUMMARY

REPORT C1R14 Prepared by: Reviewed by: l-&zoI'A_______________________Q______

W___.______.

Approved by: Concurred by: p /ý- lag I -

TABLE OF CONTENTS TITLE SECTION APPROVALS TABLE OF CONTENTS INTRODUCTION AND SCOPE ......................................................................

1 NIS-1 CODE DATA REPORT ....................................................................

2 0 ABSTRACT OF EXAMINATIONS LISTING OF EXAMINATION AND TESTING PROCEDURES

.............

3 LISTING OF EXAMINATION AND TESTING PERSONNEL

................

4 LISTING OF EQUIPMENT AND MATERIALS

........................................

5 REPAIR AND REPLACEMENT

................................................................

6 o LISTING OF REPAIRS/REPLACEMENTS PERFORMED o NIS-2 DATA REPORTS Page 1 of 3 SECTION 1 INTRODUCTION AND SCOPE INTRODUCTION:

This Summary Report covers the Inservice Inspection performed at Clinton Power Station (CPS), between December 23, 2011 and October 30, 2013. This is the first inspection performed during the second inspection period of the third ten (10)-year interval.

During this Fuel Cycle, CPS experienced two (2) forced outages (Cl F54 and C11F55) and one planned refueling outage (C1R14). All examinations, tests, repairs and replacements were performed in accordance with the CPS Inservice Examination Plan which complies with ASME Section Xl, 2004 Edition.The ASME Section Xl examinations, tests and repairs/replacements were witnessed or verified by Authorized Nuclear Inservice Inspector (ANII) M. Haydon of Hartford Steam Boiler of Connecticut.

This summary report contains additional augmented (non-ASME Section Xl) inspection results not required to be witnessed or verified by the ANII.In accordance with IWA-6220, the name and description of the components examined are listed on the NIS-1 Data Report and its attachments (Section 2).Further component information is obtainable through the reference number, or other information, for the specific item. The manufacturers' names for the components examined are also identified in Item 7 of the NIS-1 Data Report and their addresses are on file at CPS. Documentation supporting this Summary Report is referenced in the Inservice Examination Plan, implementing procedures, or record files identified in the specific sections of this report.Scope: The scope of Inservice Inspection performed during this Fuel Cycle is summarized as follows:* Preservice Examinations

-Preservice examinations were performed on bolting associated with the control rod drives." Scheduled Inservice Examinations

-The NIS-1 Data Report (Section 2)provides the listing of all examinations completed during C1 R14. Conditions noted during Cl R1 4 and corrective measures taken are described in the NIS-1 Data Report.

Page 2 of 3 Snubbers -There are six (6) Defined Test Plan Groups (DTPGs) at Clinton.They are DTPG-1, DTPG-2, DTPG-2H, DTPG-3, DTPG-4, and DTPG-6.An initial sample (10% of each DTPG) of fifty-nine (59) snubbers was selected from the population of five hundred sixty-seven (567) snubbers.

A total of two (2) snubbers from this population failed functional testing. One (1)was DTPG-1 snubber 1RH17002S and one (1) was DTPG-6 hydraulic snubber 1S102B.For the failure of 1 RH17002S, five (5) additional DTPG-1 snubbers were selected and tested (1 RH73002S, 1 IS01 074S, 1 IS01 075S, 1 IS04015S, and 1 IS04018S).

No failures occurred in this sample expansion.

For the failure of hydraulic snubber 1S102B, two (2) additional DTPG-6 snubbers were selected for testing (1 S1 08C and 1S101 B). No failures occurred in this sample expansion.

In total, seventy-eight (78) snubbers were removed from the plant for testing in C1 R14.* Fifty-nine (59) snubbers to meet the 10% ISTD/OM Code representative sample requirement,* Five (5) snubbers that failed functional testing in C1R13,* One (1) snubber that was degraded in C1 R13,* Two (2) DTPG-1 snubbers that were eliminated,* Five (5) DTPG-1 snubbers due to scope expansion,* One (1) DTPG-6 snubber due to scope expansion (the second DTPG-6 scope expansion snubber came from the DTPG-6 Service Life Monitoring (SLM) population),* Four (4) DTPG-6 snubbers to permit SLM activities, and* One (1) DTPG-1 snubber that required position indication adjustment and was replaced as part of SLM.Component Supports -Twenty eight (28) component supports (other than snubbers) were scheduled for visual examination for C1 R14. All were found acceptable.

• Pressure Tests+ ASME Code Class 1 Components

-A system leakage test and VT-2 inspection of ASME Code Class 1 components were successfully performed prior to plant startup.+ ASME Code Class 2 and 3 Components

-A system leakage test and VT-2 inspection of ASME Code Class 2 and 3 components were successfully performed during the First Inspection Period of the Third Interval.

Page 3 of 3 Repairs and Replacements

-During C1 R1 4 no repairs and replacements were required as a result of scheduled examinations.

Also during C1R14, there were several modifications performed.

The modifications, as well as repairs and replacements which resulted from routine maintenance, are specifically detailed in Section 6 of this report.Containment Inservice Inspection

-During C1R14,portions of subsection IWE examinations were performed.

This is the second inspection period of the second interval, which began September 10, 2008, and scheduled to end September 10, 2018, for Containment Inservice Inspection activities.

IWE: Portions of Class MC components were scheduled and examined in C1R14.IWL: There were no Class CC components scheduled for examinations in C1 R1 4.

FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTION ATTACHMENT 1 1. Owner: Exelon Corporation, 965 Chesterbrook Blvd., Wayne, PA 19087 2. Plant: Clinton Power Station, 8401 Power Rd., Clinton, IL 61727 3. Plant Unit: 1 4. Owner Certificate of Autherization:

N/A 5. Commercial Service Date: 4-24-87 6. National Board Number for Unit: N/A 13 / 14. Abstract of Examination:

Listing of Examinations:

Table 1 lists scheduled examinations of components for C1 R1 4. The results column in the table provides further explanation for these examinations.

Those items, which were examined, that require no further evaluation are identified as acceptable.

Table 2 lists scheduled visual examinations of component supports.

The results column in the table provides further explanation for these examinations/tests.

Those items, which were examined/tested, that require no further evaluation are identified as acceptable.

The visual examination results of all supports were acceptable.

Table 3 lists visual examinations and functional testing of snubbers.

The results column in the table provides further explanation for these examinations/tests.

Those items, which were examined/tested, that require no further evaluation are identified as acceptable.

The visual examination results of snubbers are identified as acceptable except one hydraulic snubber, 1 S1 02B. This snubber failed its visual examination due to low fluid level (IR 1572100).

A functional test was performed to demonstrate the operability of this snubber. This snubber, 1S102B, failed the functional test also. For those snubbers, which had unacceptable functional tests, the additional snubbers tested are included in this table and discussed further in attachment 2.Table 4 lists scheduled pressure tests. The results column in the table provides further explanation for these tests.Current Interval Status: Currently CPS is in the Second Period of the Third Interval.

Based on the annual refueling outage schedule CPS has four (4) refueling outages, Ci R14, C1 R15, C1 R16, and C1 R17 during the Second Period. With the exception of the examinations that may be deferred until the end of the inspection interval, the required examinations in each examination category were completed (Inspection Program B).

FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTIONS As Required by the Provisions of the ASME Code Rules 1. Owner Exelon Corporation, 965 Chesterbrook Blvd., Wayne, PA 19087 2. Plant Clinton Power Station, 8401 Power Rd., ClintonIL 61727 3. Plant Unit 1 4. Owner Certificate of Authorization (if required)

N/A 5. Commercial Service Date 4/24/1987

6. National Board Number for Unit N/A 7. Components Inspected Component or Manufacturer Manufacturer State or National Appurtenance or Installer or Installer Province Board No.Serial No. No.Reactor Vessel 1 B1 3-D003 Chicago Bridge & Iron Co. B5225 B005056 4442 RHR Pump 1 E12-CO02A Byron Jackson 741 -S-1448 N/A N/A HPCS Pump 1 E22-CO01 Byron Jackson 731-S-1186 N/A N/A LPCS Pump 1 E21 -COO1 Byron'Jackson 741-S-1451 N/A N/A RCIC Pump 1 E51 -CO01 Bingham-Willamette 16210287 N/A NB-550 Piping Systems Illinois Power Co. See Note 1 N/A N/A Note 1: The piping components examined/tested are listed in Attachment 1 of this NIS-1 Data Report.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 the 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-1 (Back)8. Examination Dates 12/23/11 to 10/30/13 9. Inspection Period Identification 2 10. Inspection Interval Identification 07/01/10 to 06/30/20 11. Applicable Edition of Section Xl 2004 Addenda N/A 12. Date/Revision of Inspection Plan Rev. 15 13. Abstract of Examinations and Tests. Include a list of examinations and tests a statement concerning status for the Inspection Plan.See Attachment 1.14. Abstract of Results of Examination and Tests.See Attachment 1.15. Abstract of Corrective Measures.See Attachment 2.We certify that a) the statements made in this report are correct, b) the examinations and tests meet the Inspection Plan as required by the ASME Code Section Xl, and c) corrective measures taken conform to the rules of the ASME Code,Section XI.Certificate of Authorization No. (if applicable)

N/A ExpirationDate N/A Date 11t , L71 :. 0! Signed Exelon C orporation By A, ; a Owner t 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 Hartford Steam Boiler of Connecticut have inspected the components described in this owner's report during the period 12/23/11 to 10/30/13, and state that to the best of my knowledge and belief, the owner has performed examinations and tests and taken corrective measures described in this owner's Report in accordance with the inspection plan and as required by 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 Owner's Repor. Furthermore, neither the Inspector nor his employer shall be liable in any Maner fo personal injury or property damage or a loss of any kind arising from or on t d w ' this inspection.

I /".. Commissions io:- Inspector's Signature National Board, state, province, and endorsements 0

FORM NIS-I OWNER'S REPORT FOR INSERVICE INSPECTION ATTACHMENT 1 TABLE 1 1. Owner: Exelon Corporation, 965 Chesterbrook Blvd., Wayne, PA 19087 2. Plant: Clinton Power Station, 8401 Power Rd., Clinton, IL 61727 3. Plant Uni: 1 4. Owner Certificate of Authorization:

N/A 5. Commercial Service Date: 4-24-87 6. National Board Number for Unit: N/A 10. Abstract of Examinations:

Listing of Scheduled Examinations.

REFERENCE ITEM EXAM CODE CODE CODE RESULTS NUMBER IDENTIFICATION TYPE ITEM CATEGORY CLASS 001250 N2B MECH UT B3.90 B-D I ACCEPTABLE 001300 N2C MECH UT B3.90 B-D I ACCEPTABLE 001350 N2D MECH UT B3.90 B-D I ACCEPTABLE 002050 N5A MECH UT B3.90 B-D I ACCEPTABLE 002600 N2B-IRS MECH UT B3.100 B-D I ACCEPTABLE 002650 N2C-IRS MECH UT B3.100 B-D 1 ACCEPTABLE 002700 N2D-IRS MECH UT B3.100 B-D I ACCEPTABLE 003450 N5A-IRS MECH UT B3.100 B-D 1 ACCEPTABLE 004900 N4A-W-I UT-E MECH UT RI.I 1 R-A I ACCEPTABLE 004940 N4B-W-I UT-E MECH UT RI.I 1 R-A 1 ACCEPTABLE 004980 N4C-W-I MECH UT Ril. R-A I ACCEPTABLE 005025 N4D-W-I MECH UT Rl.iI R-A I ACCEPTABLE 005520 N9B-W-I UT NA NA I ACCEPTABLE 008111 SHROUD VERTICAL WELDS EVT-I NA NA I ACCEPTABLE (8)008251 STEAM SEPARATOR (1/2) _VT-3 INA I NA II [ACCEPTABLE SEE NOTE 5 008352 FEEDWATER SPARGERS VT-I INA I NA [__ ACCEPTABLE SEE NOTE 2 END BRCKT BOLT STOP 008451 CORE SPRAY INT PIPING EVT-I NA NA I ACCEPTABLE 008572 IRM (ONLY 4) VT-I NA NA I ACCEPTABLE SEE NOTE I 008573 SRM (ONLY 2) VT-I NA NA 1 ACCEPTABLE SEE NOTE 4 008574 LPRM (ONLY 4) VT-I NA NA I ACCEPTABLE SEE NOTE 3 008595 JET PUMP BEAMS UT NA NA I ACCEPTABLE 008651 H9 VT-3 UT B13.40 B-N-2 I ACCEPTABLE 008760 JP RISER BRCKT WELDED EVT-1 NA NA I ACCEPTABLE AT-r (50%)008763 JP SENSING LINES (50%) VT-I NA NA I ACCEPTABLE 008771 LPCI C-6-1a EVT-I NA NA I ACCEPTABLE 008772 LPCI C-6-Ib EVT-I NA NA I ACCEPTABLE 008773 LPCIC-6-1c EVT-I NA NA I ACCEPTABLE 008774 LPCI C Id EVT-I NA NA I ACCEPTABLE 008775 LPCI C-6-4 EVT-I NA NA I ACCEPTABLE 008776 LPCI C-6-5a EVT-! NA NA I ACCEPTABLE 008777 LPCI C-6-5b EVT-I NA NA I ACCEPTABLE 008778 LPCI C-6-6b EVT-I NA NA I ACCEPTABLE 008800 JP-A-WA VT-I B13.20 B-N-2 I ACCEPTABLE 008801 JP-B-WA VT-i B13.20 B-N-2 I ACCEPTABLE 008802 JP-C-WA VT-I B 13.20 B-N-2 I ACCEPTABLE 008803 JP-D-WA VT-I B 13.20 B-N-2 I ACCEPTABLE FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTION ATTACHMENT 1 TABLE 1 1. Owner: Exelon Corporation, 965 Chesterbrook Blvd., Wayne, PA 19087 2. Plant: Clinton Power Station, 8401 Power Rd., Clinton, IL 61727 3. Plant Uni: 1 4. Owner Certificate of Authorization:

N/A 5. Commercial Service Date: 4-24-87 6. National Board Number for Unit: N/A 10. Abstract of Examinations:

Listing of Scheduled Examinations.

REFERENCE ITEM EXAM CODE CODE CODE RESULTS NUMBER IDENTIFICATION TYPE ITEM CATEGORY CLASS 008804 JP-E-WA VT-I B13.20 B-N-2 1 ACCEPTABLE 009200 CH-MC UT B 1.22 B-A I ACCEPTABLE 009250 CH-MD UT B 1.22 B-A I ACCEPTABLE 100680 1-MS-A-7PR-WA PT B10.20 B-K I ACCEPTABLE 112460 l-FW-2-5-3 UT-E RI.I1 R-A I ACCEPTABLE 112480 1-FW-2-8 UT-E RII1 R-A I ACCEPTABLE 112520 1-FW-2-6-3 UT-E Ri .11 R-A I ACCEPTABLE 180260 I-MC-42-A MT B10.20 B-K 1 ACCEPTABLE 180960 1-RI-14-4-2FB VT-I B7.50 B-G-2 I ACCEPTABLE 181000 I-RI-14-9 UT-E RI.II R-A I ACCEPTABLE 181020 I-RI-14-5-4Q1 UT-E RI.11 R-A I ACCEPTABLE 181040 I-RI-14-5-3QI UT-E RI.II R-A I ACCEPTABLE 181060 1-RI-14-5-2QI UT-E RI.II R-A I ACCEPTABLE 181304 W0803566-4 UT-E RI.11 R-A 1 ACCEPTABLE 181960 I-RI-1-9 UT-E RI.20 R-A I ACCEPTABLE 560565 1-HP03009R-WA MT C3.20 C-C 2 ACCEPTABLE 582980 I-RH-09013R-WA MT C3.20 C-C 2 ACCEPTABLE 800140 RHR-A-3 MT C6.10 C-G 2 ACCEPTABLE 801540 LPCS-3 MT C6.10 C-G 2 ACCEPTABLE 802540 HPCS-3 MT C6.10 C-G 2 ACCEPTABLE 803100 RCIC-I MT C6.10 C-G 2 ACCEPTABLE 803200 RCIC-2 MT C6.10 C-G 2 ACCEPTABLE 950607 JP RISER WELDS VARIOUS EVT-I NA NA I ACCEPTABLE 950608 JP DIFFUSER WELDS VARIOUS EVT-I NA NA I[ACCEPTABLE FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTION ATTACHMENT I TABLE 1 Notes 1. Owner: Exelon Corporation, 965 Chesterbrook Blvd., Wayne, PA 19087 2. Plant: Clinton Power Station, RR3 Box 228, Clinton, IL 61727 3. Plant Unit: 1 4. Owner Certificate of Autherization:

N/A 5. Commercial Service Date: 4-24-87 6. National Board Number for Unit: N/A 13 / 14. Abstract of Examinations:

Listing of Scheduled Examinations Note 1: IRM "C" (22-35) and IRM "E" (30-27) -During C1R 14 outage cracking was noted on Dry Tubes IRM 'C' and 'E'. These are not ASME Section XI items. See Attachment 2 for further discussion.

Note 2: Feedwater Sparger End Bracket Bolt Stops -During C1R14 examination of the Feedwater Sparger End Bracket Bolt Stops revealed no apparent change in the wear as identified in the previous outages.Note 3: LPRM 14-47 and 38-31 -During C1R14 blockage was observed in all four of the lower flow holes on LPRMs 14-47 and 38-47. These are not an ASME Section XI items. See Attachment 2 for further discussion.

Note 4: SRM "C" (30-19)and SRM "D" (38-35) -During CIRI4 outage indications were noted on Dry Tubes SRM 'C' (30-19) and SRM 'D' (38-35). These are not an ASME Section XI items. See Attachment 2 for further discussion.

Note 5: Steam Separator

-

During CIR14 a visual inspection did not reveal any apparent change in the relevant indications of the Steam Separator at 0 degrees. This indication was first identified in C1R09 outage. See Attachment 2 for further discussion.

Also, during C lRI4 a visual inspection was performed on the 260 deg. Lifting eye and new indications were noted where the lifting eye is attached at the bottom and wear was noted in the upper support ring to rod interface.

Wear was also noted on the 330 deg. Upper support ring to rod interface.

Scope was expanded to include the lifting eyes at 80 deg and 150 deg The 080 deg tack weld was noted as being missing. A comparison between C 1R 14 and C 1R 13 outage shows that this tack weld was intact in C1R13. See Attachment 2 for further discussion.

FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTION ATTACHMENT 1 TABLE 2 1. Owner: Exelon Corporation, 965 Chesterbrook Blvd., Wayne, PA 19087 2. Plant: Clinton Power Station, 8401 Power Rd., Clinton, IL 61727 3. Plant Uni: 1 4. Owner Certificate of Authorization:

N/A 5. Commercial Service Date: 4-24-87 6. National Board Number for Unit: N/A 10. Abstract of Examinations:

Listing of Scheduled Examinations.

REFERENCE ITEM EXAM CODE CODE CODE RESULTS NUMBER IDENTIFICATION TYPE ITEM CATEGORY CLASS 903710 1FW02014G VT-3 FI.10 F-A I ACCEPTABLE 906020 IHP02002A VT-3 FI.10 F-A I ACCEPTABLE 906140 1HP03002R VT-3 F1.20 F-A 2 ACCEPTABLE 906245 1 HP04007R VT-3 F1.20 F-A 2 ACCEPTABLE 906270 1HP08001R VT-3 F1.20 F-A 2 ACCEPTABLE 906370 IHP0801IR VT-3 F1.20 F-A 2 ACCEPTABLE 908000 ILP01001C VT-3 FI.10 F-A I ACCEPTABLE 908305 1LP04002X VT-3 F1.20 F-A 2 ACCEPTABLE 912200 IRH06007R VT-3 F1.10 F-A 1 ACCEPTABLE 913265 1 RH07002X VT-3 Fl.20 F-A 2 ACCEPTABLE 913525 IRH07085C VT-3 F1.20 F-A 2 ACCEPTABLE 913898 IRHlI005R VT-3 F1.20 F-A 2 ACCEPTABLE 913975 1RH09017V VT-3 F1.20 F-A 2 ACCEPTABLE 914205 1 RH09052X VT-3 F1.20 F-A 2 ACCEPTABLE 916695 1RH07068X VT-3 F1.20 F-A 2 ACCEPTABLE 919005 IRII0001A VT-3 F1.10 F-A 1 ACCEPTABLE 919100 IRI01001C VT-3 F1.10 F-A I ACCEPTABLE 920270 1R108003R VT-3 F1.20 F-A 2 ACCEPTABLE 921330 ISD90-SPI3 VT-3 F1.20 F-A 2 ACCEPTABLE 922000 IB301A VT-3 F1.40 F-A I ACCEPTABLE 922545 1H356B VT-3 F1.10 F-A I ACCEPTABLE 940705 1SX01003R VT-3 F1.30 F-A 3 ACCEPTABLE 941750 1SX02005R VT-3 FI.30 F-A 3 ACCEPTABLE 941770 ISX02006X VT-3 F1.30 F-A 3 ACCEPTABLE 941910 1SX02013X VT-3 F1.30 F-A 3 ACCEPTABLE 942225 ISXI4001A VT-3 F1.30 F-A 3 ACCEPTABLE 944740 ISXI6OI2R VT-3 F1.30 F-A 3 ACCEPTABLE 960080 1 SC07004V VT-3 Fl. 10 F-A I ACCEPTABLE FORM NIS-I OWNER'S REPORT FOR INSERVICE INSPECTION ATTACHMENT 1 TABLE 3 1. Owner: Exelon Corporation, 965 Chesterbrook Blvd., Wayne, PA 19087 2. Plant: Clinton Power Station, 8401 Power Rd., Clinton, IL 61727 3. Plant Uni: 1 4. Owner Certificate of Authorization:

N/A 5. Commercial Service Date: 4-24-87 6. National Board Number for Unit: N/A 13 / 14. Abstract of Examinations:

Listing of Scheduled Examinations.

REFERENCE ITEM EXAM CODE CODE CODE RESULTS NUMBER IDENTIFICATION TYPE ITEM CATEGORY CLASS 903735 1 FW02004S VT-3/FT 71.10 F-A 1 ACCEPTABLE 909271 IMS05024S VT-3/IFT :1.10 F-A I ACCEPTABLE 909278 IMS05034W VT-3/Fr 71.10 F-A 1 ACCEPTABLE 906030 1 MS38028S VT-3 1.10 F-A 1 ACCEPTABLE 909282 1MS38097S VT-3 F71.10 F-A 1 ACCEPTABLE 909289 IRB31516S VT-3/FT F1.10 F-A I ACCEPTABLE 919155 1RIO1012W VT-3/FT "1.10 F-A 1 ACCEPTABLE 919160 1RI01013W VT-3/FT F1.10 F-A I ACCEPTABLE 919170 IRIO1015W VT-3/FT 71.10 F-A 1 ACCEPTABLE 923005 1RT01002S VT-3 F1.10 F-A I ACCEPTABLE 923090 1RT01035S VT-3 71.10 F-A I ACCEPTABLE 909065 IS101B VT-3/FT 71.10 F-A I ACCEPTABLE 909070 1SI02B VT-3/FT F1.10 F-A 1 VT-3/FT UNACCEPTABLE 909020 1S104A VT-3/FT 71.10 F-A 1 ACCEPTABLE 909185 IS105C VT-3/FT .1.10 F-A I ACCEPTABLE 909195 IS107C VT-3/FT 1.10 F-A I ACCEPTABLE 909200 1S108C VT-3/Fr 1.10 F-A I ACCEPTABLE 922125 1S370A VT-3/FT 1.10 F-A I ACCEPTABLE 922625 1S370B VT-3/FT 1.10 F-A 1 ACCEPTABLE 922135 IS372A VT-3 1.10 F-A I ACCEPTABLE 922635 1S372B VT-3/FT 71.10 F-A I ACCEPTABLE 922140 1S373A VT-3 ý1.10 F-A 1 ACCEPTABLE 922640 1 S373B VT-3 -'1.10 F-A I ACCEPTABLE 922145 I S374A VT-3 1.10 F-A 1 ACCEPTABLE 922645 1S374B VT-3 1.10 F-A I ACCEPTABLE 922150 1S375A VT-3 ý1.10 F-A 1. ACCEPTABLE 922650 1S375B VT-3 71.10 F-A 1 ACCEPTABLE 906260 I-HP08004S VT-3/FT :1.20 F-A 2 ACCEPTABLE 906702 11S01007S VT-3 1A NA 2 ACCEPTABLE 906704 1[S01009S VT-3/Fr qA NA 2 ACCEPTABLE 906718 1IS01014S VT-3 qA NA 2 ACCEPTABLE 906720 IIISO1016S VT-3 NA NA 2 ACCEPTABLE 906694 1IS01020S VT-3/FT qA NA 2 ACCEPTABLE 906696 1ISO1022S VT-3/FT 4A NA 2 ACCEPTABLE 906710 IISOI027S VT-3/FT qA NA 2 ACCEPTABLE 906712 IIS01029S VT-3/FT qA NA 2 ACCEPTABLE 906706 11S01033S VT-3 71.20 F-A 2 ACCEPTABLE FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTION ATTACHMENT 1 TABLE 3 1. Owner: Exelon Corporation, 965 Chesterbrook Blvd., Wayne, PA 19087 2. Plant: Clinton Power Station, 8401 Power Rd., Clinton, IL 61727 3. Plant Uni: 1 4. Owner Certificate of Authorization:

N/A 5. Commercial Service Date: 4-24-87 6. National Board Number for Unit: N/A 13 / 14. Abstract of Examinations:

Listing of Scheduled Examinations.

REFERENCE ITEM EXAM CODE CODE CODE RESULTS NUMBER IDENTIFICATION TYPE ITEM CATEGORY CLASS 906708 1IS01035S VT-3 qA NA 2 ACCEPTABLE 906722 1IS01040S VT-3 -1.20 F-A 2 ACCEPTABLE 906724 1IS01042S VT-3 qA NA 2 ACCEPTABLE 906698 1ISO 1046S VT-3 -1.20 F-A 2 ACCEPTABLE 906700 11SO 1048S VT-3 qA NA 2 ACCEPTABLE 906714 1IS01053S VT-3 1.20 F-A 2 ACCEPTABLE 906716 11S01055S VT-3/Fr qA NA 2 ACCEPTABLE 906746 1[S01074S VT-3/FT qA NA 2 ACCEPTABLE 906748 1IS01075S VT-3/Fr 4A NA 2 ACCEPTABLE 906734 1ISO4015S VT-3/FT 71.20 F-A 2 ACCEPTABLE 906736 11S04018S VT-3/FT 71.20 F-A 2 ACCEPTABLE 909370 1MS38027S VT-3 qA NA 2 ACCEPTABLE 909394 1 MS38072S VT-3 qA NA 2 ACCEPTABLE 909376 1MS38093S VT-3 -1.20 F-A 2 ACCEPTABLE 909372 IMS38094S VT-3 qA NA 2 ACCEPTABLE 909378 1MS38095S VT-3 qA NA 2 ACCEPTABLE 909374 I MS38096S VT-3 4A NA 2 ACCEPTABLE 909364 1RB21637S VT-3 71.20 F-A 2 ACCEPTABLE 909366 I RB24568S VT-3/FT 1.20 F-A 2 ACCEPTABLE 909340 1 RB24569S VT-3/FT 1.20 F-A 2 ACCEPTABLE 917330 1 RHO403IS VT-3/FT 1.20 F-A 2 ACCEPTABLE 913270 1RH07003S VT-3 1.20 F-A 2 ACCEPTABLE 914800 1 RH07022S VT-3/FT 1.20 F-A 2 ACCEPTABLE 914840 IRH07030S VT-3PFT 1.20 F-A 2 ACCEPTABLE 914870 1 RH07036S VT-3/FT 1.20 F-A 2 ACCEPTABLE 916390 1RH07114S-E VT-3/FT 1.20 F-A 2 ACCEPTABLE 916391 1RH07114S-W VT-3/FT 1.20 F-A 2 ACCEPTABLE 913585 1RH07118S VT-3/FT 1.20 F-A 2 ACCEPTABLE 913375 1RH08029S VT-3/FT 1.20 F-A 2 ACCEPTABLE 913175 1RH09027S VT-3/FT 71.20 F-A 2 ACCEPTABLE 914035 1 RH09069S VT-3 F1.20 F-A 2 ACCEPTABLE 914040 I RHO9070S VT-3 "1.20 F-A 2 ACCEPTABLE 914045 1 RH09071S VT-3 F1.20 F-A 2 ACCEPTABLE 913947 1 RH09083S VT-3 71.20 F-A 2 ACCEPTABLE 914050 1 RH09087S VT-3 -1.20 F-A 2 ACCEPTABLE 913150 1 RH09088S VT-3 F.20 F-A 2 ACCEPTABLE 913000 1RH09089S-E VT-3/FT P1.20 F-A 2 ACCEPTABLE FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTION ATTACHMENT 1 TABLE 3 1. Owner: Exelon Corporation, 965 Chesterbrook Blvd., Wayne, PA 19087 2. Plant: Clinton Power Station, 8401 Power Rd., Clinton, IL 61727 3. Plant Uni: 1 4. Owner Certificate of Authorization:

N/A 5. Commercial Service Date: 4-24-87 6. National Board Number for Unit: N/A 13 / 14. Abstract of Examinations:

Listing of Scheduled Examinations.

REFERENCE ITEM EXAM CODE CODE CODE RESULTS NUMBER IDENTIFICATION TYPE ITEM CATEGORY CLASS 915000 IRH17002S VT-3/FT 1.20 F-A 2 FT UNACCEPTABLE 917790 1 RH73002S VT-3/FT A NA 2 ACCEPTABLE 917780 IRH82002S VT-3 A NA 2 ACCEPTABLE 920460 1RJ03013S VT-3/FT 1.20 F-A 2 ACCEPTABLE 913040 IRJ07018S VT-3/FT A NA 2 ACCEPTABLE 920950 1R121006S VT-3/FT 4A NA 2 ACCEPTABLE 909560 1FC03081S VT-3/FT 71.30 F-A 3 ACCEPTABLE 911270 1MSIII06S VT-3/FT /A NA 3 ACCEPTABLE, See Note 1 911275 IMSlll08S VT-3IFT 4A NA 3 ACCEPTABLE, See Note 1 910035 IMS21008S VT-3/FT 71.30 F-A 3 ACCEPTABLE 910320 I MS22006S VT-3/FT 1.30 F-A 3 ACCEPTABLE 910210 1MS23005S VT-3/FT 1.30 F-A 3 ACCEPTABLE 910780 1 MS25006S VT-3/FT 71.30 F-A 3 ACCEPTABLE 910795 1MS25009S VT-3/FT 71.30 F-A 3 ACCEPTABLE 910150 1MS26005S VT-3/FT 1.30 F-A 3 ACCEPTABLE 911100 1MS30011S VT-3/FT 1.30 F-A 3 ACCEPTABLE 910385 1MS33006S VT-3/FT ý1.30 F-A 3 ACCEPTABLE 909420 1RH09079S VT-3 71.30 F-A 3 ACCEPTABLE 925035 1 RT05003S VT-3/FT 71.30 F-A 3 ACCEPTABLE 924025 IRT06006S VT-3 -1.30 F-A 3 ACCEPTABLE 924050 1RT06014S VT-3 'A NA 3 ACCEPTABLE 924055 IRT06015S VT-3 -1.30 F-A 3 ACCEPTABLE 924060 1RT06018S VT-3 :1.30 F-A 3 ACCEPTABLE 924065 1 RT06022S VT-3 qA NA 3 ACCEPTABLE 924075 1 RT06029S VT-3 qA NA 3 ACCEPTABLE 924037 1RT06044S VT-3/FT 71.30 F-A 3 ACCEPTABLE 924110 1RT07014S VT-3/FT ;1.30 F-A 3 ACCEPTABLE 924125 1RT07036S VT-3 qA NA 3 ACCEPTABLE 924130 1RT07037S VT-3 qA NA 3 ACCEPTABLE 924140 1RT07042S VT-3/FT A NA 3 ACCEPTABLE 924155 1RT07049S VT-3/FT A NA 3 ACCEPTABLE 925600 1 RT30002S VT-3 1.30 F-A 3 ACCEPTABLE 945425 1SX12010S VT-3 ý1.30 F-A 3 ACCEPTABLE 946280 ISX15019S VT-3 1.30 F-A 3 ACCEPTABLE 947200 1 SX 17016S VT-3/FI A NA 3 ACCEPTABLE 947220 1SX17027S VT-3/FT A NA 3 ACCEPTABLE 947680 i FW03014S VT-3/FT ýA NA D ACCEPTABLE FORM NIS-I OWNER'S REPORT FOR INSERVICE INSPECTION ATTACHMENT 1 TABLE 3 1. Owner: Exelon Corporation, 965 Chesterbrook Blvd., Wayne, PA 19087 2. Plant: Clinton Power Station, 8401 Power Rd., Clinton, IL 61727 3. Plant Uni: 1 4. Owner Certificate of Authorization:

N/A 5. Commercial Service Date: 4-24-87 6. National Board Number for Unit: N/A 13 / 14. Abstract of Examinations:

Listing of Scheduled Examinations.

REFERENCE ITEM EXAM CODE CODE CODE RESULTS NUMBER IDENTIFICATION TYPE ITEM CATEGORY CLASS 947860 1 MS07017S VT-3/FT 1A NA D ACCEPTABLE 903862 1DG0400 iS VT-3/FT 14A NA 0 ACCEPTABLE 903864 IDG04002S

'VT-3/FT NIA NA 0 ACCEPTABLE 903872 1DG04012S VT-3/FT IA NA 0 ACCEPTABLE 903874 1DG04013S VT-3/FT NA NA 0 ACCEPTABLE 903866 1DG04017S VT-3/FT qA NA 0 ACCEPTABLE 903850 IDG06008S VT-3 4A NA 0 ACCEPTABLE 903854 lDG06017S VT-3 4A NA 0 ACCEPTABLE 949200 IVG01023S VT-3 9A NA 0 ACCEPTABLE 949220 1VG02019S VT-3/FT A NA 0 ACCEPTABLE 949240 1 VG02020S VT-3/FT A NA 0 ACCEPTABLE 949360 1VG02024S VT-3/FT A NA 0 ACCEPTABLE 949120 1VG1 1004S VT-3/FT A NA 0 ACCEPTABLE 949140 1VG11010S VT-3/FT A NA 0 ACCEPTABLE 949260 IVG11041S VT-3 A NA 0 ACCEPTABLE 949420 1VQ01001S VT-3/FT A NA 0 ACCEPTABLE 949440 IVQ01003S VT-3/FT A NA 0 ACCEPTABLE 949480 IVRO4002S VT-3 A NA 0 ACCEPTABLE 949500 IVRO4003S-N

'VT-3/FIT A NA 0 ACCEPTABLE 949520 1IVRO4003S-S

'VT-3/FT A NA 0 ACCEPTABLE FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTION ATTACHMENT I TABLE 3 Notes 1. Owner: Exelon Corporation, 965 Chesterbrook Blvd., Wayne, PA 19087 2. Plant: Clinton Power Station, 8401 Power Rd. , Clinton, IL 61727 3. Plant Unit: 1 4. Owner Certificate of Authorization:

N/A 5. Commercial Service Date: 4-24-87 6. National Board Number for Unit: N/A 10. Abstract of Examinations:

Listing of Scheduled Examinations Note 1: Snubbers 1MS1 1106S and 1MS1 1108S have been removed from the system per EC 390995.

FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTION ATTACHMENT 1 TABLE 4 1. Owner: Exelon Corporation, 965 Chesterbrook Blvd., Wayne, PA 19087 2. Plant: Clinton Power Station, 8401 Power Rd., Clinton, IL 61727 3. Plant Unit: 1 4. Owner Certificate of Authorization:

N/A 5. Commercial Service Date: 4-24-87 6. National Board Number for Unit: N/A 13 / 14. Abstract of Examinations:

Listing of Scheduled Examinations.

ITEM EXAM CODE CODE CODE RESULTS IDENTIFICATION TYPE ITEM CATEGORY CLASS ALL CLASS 1 VT-2 B15.10 B-P 1 ACCEPTABLE, SEE NOTE 1 COMPONENTS ALL CLASS 2 VT-2 C7.10 C-H 2 ACCEPTABLE, SEE NOTE 2 COMPONENTS III ALL CLASS 3 VT-2 D2.10 D-B 3 ACCEPTABLE, SEE NOTE 2 COMPONENTS

____ D2.10 _ I I FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTION ATTACHMENT I TABLE 4 Notes 1. Owner: Exelon Corporation, 965 Chesterbrook Blvd., Wayne, PA 19087 2. Plant: Clinton Power Station, 8401 Power Rd., Clinton, IL 61727 3. Plant Unit: 1 4. Owner Certificate of Authorizatio

5. Commercial Service Date: 4-24-87 6. National Board Number for Unit: n: N/A N/A 13 / 14. Abstract of Examinations:

Listing of Scheduled Examinations Note 1: Pressure Tests Class 1 Components A System Leakage Test and VT-2 inspection of ASME Class 1 components was performed prior to plant startup.Condition noted: Only minor leakage from valve packing and bolted flanged connections was noted.Corrective measures:

Leakage was corrected to acceptable levels.Note 2: Pressure Tests Class 2 & 3 Components A System Leakage Test and VT-2 inspection of ASME Class 2 & 3 components was performed during the First Period of the Third Interval.Condition noted: Only minor leakage from valve packing, threaded connection and bolted connection noted.Corrective measures:

Appropriate actions were taken to address the leakage.

FORM NIS-1 OWNER'S REPORT FOR INSERVICE INSPECTION ATTACHMENT 2 1. Owner: Exelon Corporation, 965 Chesterbrook Blvd., Wayne, PA 19087 2. Plant: Clinton Power Station, 8401 Power Rd., Clinton, IL 61727 3. Plant Unit: 1 4. Owner Certificate of Authorization:

N/A 5. Commercial Service Date: 4-24-87 6. National Board Number for Unit: N/A 15. Abstract of Examinations:

Examinations:

IRM "C" (22-35) and IRM "E" (30-27) -During this outage, C1R14, cracking was observed on Dry Tube IRM "C" (22-35) and IRM "E" (30-27).Corrective Measures -Clinton Power Station has evaluated these cracking and justified continued operation.

LPRM 14-47 and LPRM 38-31 -During this outage, C 1R14, blockage was observed in all four (4) of the lower holes on LPPRM 14-47 and 38-47.Corrective Measures -Clinton Power Station has evaluated these cracking and justified continued operation.

SRM "C" (30-19) and SRM "D" (38-35) -During this outage, CIR14, cracking was observed on Dry Tube SRM "C" (30-19) and SRM "D" (38-35).Corrective Measures -Clinton Power Station has evaluated these cracking and justified continued operation.

Steam Separator

-Conditions Noted -1) During C I R09 examination of the separator's lower guide at zero degrees, it was observed that the left outside comers have mechanical deformation.

During this outage, C1R14, there was no apparent change in this relevant indication.

2) During this outage, C 1R14, a visual inspection was performed on the 260 deg lifting eye and indications were noted where the lifting eye is attached at the bottom and wear was noted in the upper support ring to rod interface.

Wear was also noted on the 330 deg upper support ring to rod interface.

Scope was expanded to include the flange eyes at 80 deg and 150 deg. The 080 deg tack weld was noted as being missing. A comparison between C IR14 and C 1R13 outage shows that this tack weld was intact in CIR13.Corrective Measures -Clinton has evaluated the above indications and following shows the conclusion:

1) Since there was no apparent change noted in the lower guide at zero deg between C1RI3 and C1R09 results, this indication is accepted as-is.2) Clinton Power Station has evaluated 260 deg lifting eye, 330 deg upper support ring to rod interface indications, and the 80 deg tack weld and has justified continued operation.

Snubber Functional Testing: There are six (6) DTPGs at Clinton. They are DTPG- 1, DTPG-2, DTPG-2H, DTPG-3, DTPG-4, and DTPG-6.An initial sample (10% of each DTPG) of fifty-nine (59) snubbers was selected from the population of five hundred sixty-seven (567) snubbers.

A total of two (2) snubbers from this population failed functional testing. One (1) was DTPG-1 snubber 1RH17002S and one (1)was DTPG-6 hyderaulic snubber 1S 102B.For the failure of 1RH 17002S, five (5) additional DTPG-1 snubbers were selected and tested (1RH73002S, 1IS01074S, IIS01075S, 1IS04015S, and 1IS04018S).

No failures occurred in this sample expansion.

For the failure of hydraulic snubber IS 102B, two (2) additional DTPG-6 snubbers were selected for testing (IS 108C and 1S 101B). No failures occurred in this sample expansion.

In total, seventy-eight (78) snubbers were removed from the plant for testing in C 1R14." Fifty-nine (59) snubbers to meet the 10% ISTD/OM Code representative sample requirement," Five (5) snubbers that failed functional testing in C1R13,* One (1) snubber that was degraded in C1R13," Two (2) DTPG- 1 snubbers that were eliminated," Five (5) DTPG- 1 snubbers due to scope expansion," One (1) DTPG-6 snubber due to scope expansion (the second DTPG-6 scope expansion snubber came from the DTPG-6 Service Life Monitoring (SLM) population)," Four (4) DTPG-6 snubbers to permit SLM activities, and

• One (1) DTPG-1 snubber that required position indication adjustment and was replaced as part of SLM.DTPG-1 Snubbers: There are ninety-one (91) DTPG-1 snubbers in the CPS ISI Program. As required, ten (10) of these were selected for functional testing under the initial 10% sample plan. One (1) snubber (1RH 17002S) failed functional testing and was replaced.

As required, five (5) additional snubbers were selected for scope expansion.

No failures resulted from this scope expansion.

All ten (10)DTPG-I snubbers had PMs performed on them as part of Service Life Monitoring (SLM). These SLM PMs resulted in one (1) additional snubber (1IS01022S) being replaced with a spare due to degradation of the capstan spring. All replacement snubbers were PM'd, regreased with NRRG-2 grease and tested prior to installation to ensure their average drag values were below 2% of rated load. The failure of snubber 1RH 17002S was documented in Issue Report (IR) 1574369. This snubber was disassembled for failure analysis with the following results: IRHI7002S

-This PSA-1/2 snubber failed the as-found drag test. It locked up at approximately the 1.25 inch position in the tension direction.

This snubber has been installed in its current location (RHR 'B' heat exchanger room, 734' elevation) since May 1989 (RF- 1), which is over twenty-four (24) years. This snubber tested satisfactorily in CIR10 (February 2006). This snubber currently has a 16-year PM frequency recommended.

Disassembly noted that the guide rods were bent. This snubber was replaced with a spare snubber (serial number 1603). This area of the plant is considered a moderately harsh environment and it is possible that a perpendicular loading force may have been applied to this snubber in the past causing the bent rods. Due to this evaluation, the recommended PM frequency for this snubber was reduced from 16 to 14-years.Two (2) other DTPG-1 snubbers, 1RB24568S and 1RB24569S were tested due to failing in C1R13.Both snubbers passed their functional tests. No DTPG- I snubbers were identified as degraded during C1R14, Two (2) DTPG-I snubbers were eliminated in C1R14 (1MS11 106S and 1MS1 1108S). This reduces the DTPG-1 population from 91 to 89 snubbers.

This will permit a reduction in the 10% sample plan population from 10 to 9 in C1R15. However, the required scope expansion for a DTPG-1 functional testing failure will remain at 5. Due to eliminating these two snubbers, the snubbers on the other similar Main Steam system drain lines should also be available for elimination.

An Engineering Change will be processed to remove these snubbers in C iR15.This should eliminate 7 more snubbers from the DTPG- I population.

The Design Engineering failure analysis review of the piping system attached to snubber 1RH17002S noted that this snubber and adjacent snubber 1RH17007S should also be able to be eliminated.

An Engineering Change will also be processed to eliminate these two snubbers in C 1R15.DTPG-1 Snubber

Conclusions:

DTPG- 1 snubbers continue to exhibit the highest failure rate of any DTPG at CPS. They are the most susceptible to heat, humidity, vibration and physical abuse. Based on the poor DTPG- 1 performance seen in the last 5 outages at CPS, snubber PMs were started in C IR10 and snubber replacements were performed in C1R13. Funding for C1R14 DTPG-1 replacement snubbers was eliminated, so PMs on these snubbers were all that could be performed.

Despite these funding cuts, the Program Manager will request funding to purchase new DTPG- I snubbers for installation in ClR15 and beyond. While multiple larger scale snubber reduction efforts have failed at CPS in the past, it appears small scale snubber reductions focused on a single line or several similar lines may be effective.

Engineering Changes will be submitted to evaluate the elimination of DTPG- I snubbers on a line-by-line basis, starting with those in the harshest environments.

DTPG-2 Snubbers: There are two-hundred thirty-eight (238) DTPG-2 snubbers in the CPS ISI Program. Twenty-four (24) DTPG-2 snubbers were selected for testing under the initial 10% sample plan. None of the sample plan snubbers failed functional testing. One DTPG-2 snubber was that was classified as degraded in CIR13 was also tested satisfactorily in CIR14. None of the DTPG-2 snubbers tested in C 1R14 were classified as degraded.DTPG-2 Snubber

Conclusions:

DTPG-2 snubber performance continues to be acceptable.

The failure rate for DTPG-2 snubbers remains low, as it has historically, due to these snubbers being in mild to relatively mild environments.

During C 1R14, eight (8) DTPG-2 snubbers were PM'd.DTPG-2H Snubbers: There are seventy-nine (79) DTPG-2H snubbers in the CPS ISI Program. Eight (8) were selected for testing under the initial 10% sample plan. All eight passed their functional tests. All eight were replaced with spare snubbers that had been PM'd, regreased with NRRG-2 grease and functionally tested to ensure their average drag readings were below 2% of rated load. No DTPG-2H snubbers were noted as degraded in C1R13.DTPG-2H Snubber

Conclusions:

DTPG-2H snubber performance in C1R14 was acceptable for the second straight outage. However, the failure rate for this DTPG is expected to be a potential issue until all 79 snubbers are replaced with new snubbers.

During Cl R 14, no DTPG-2H snubbers were replaced with new snubbers.Funding to purchase new snubbers was cut prior to C 1R 14 and only spare snubbers that had been PM'd were available as replacements.

Failing to replace the DTPG 2H snubbers with new snubbers will delay the long-term performance improvement of these snubbers.DTPG-3 Snubbers: There are one hundred and seventeen (117) DTPG-3 snubbers in the CPS ISI Program. Twelve (12)were selected for testing under the initial 10% sample plan. All 12 passed their functional tests. No DTPG-3 snubbers were noted as degraded in ClR14.DTPG-3 Snubber

Conclusions:

DTPG-3 snubber performance was acceptable in C1R14. Despite this performance, there* is evidence that DTPG-3 snubbers in the harshest environments (mainly the Drywell) are degrading.

An effort started in C1 R1 3 to replace selected DTPG-3 snubbers with spares that had been PM'd, regreased with NRRG-2 grease and functionally tested to ensure average drag readings below 2% of rated load. Five (5) DTPG-3 snubbers were replaced with PM'd spares in CIR14. While replacement with new snubbers is preferred, the process of replacing these snubbers with PM'd spares will continue until it is apparent this methodology is not preventing sample plan failures.DTPG-4 Snubbers (Mechanical Struts): There are four (4) DTPG-4 mechanical struts in the CPS ISI Program. One (1) DTPG-4 mechanical strut was selected for testing under the initial 10% sample plan. This mechanical strut passed its functional test. This mechanical strut had failed its functional test in C1R13. The remaining three (3) DTPG-4 mechanical struts were tested due to also failing their functional tests in C1R13. All three mechanical struts passed their functional tests.DTPG-4 Snubber

Conclusions:

DTPG-4 snubber performance was acceptable in C 1R 14. This is attributed to replacing two DTPG-4 mechanical struts (IRI01012W and IMS05034W) with new mechanical struts in ClR13 and increasing the drag functional testing acceptance criterion from 1% of rated load to 2% of rated load prior to C1R14 for mechanical struts 1RI01012W, 1RI01013W and 1RI01015W.

Since two DTPG-.4 mechanical struts (1RI01013W and 1RIO0O15W) were also replaced with new mechanical struts in C1R14, all DTPG-4 mechanical struts are now new. An Engineering Change will be submitted to increase the drag functional testing acceptance criterion from 1% of rated load to 2% of rated load for mechanical strut 1MS05034W prior to CIR15. The 40-year service lives of lRIOO13W and 1RI01015W have been reset.DTPG-6 Snubbers: There are thirty-eight (38) DTPG-6 snubbers in the CPS ISI Program. Four (4) were selected for testing under the initial 10% sample plan. One snubber (IS 102B) failed it functional test (IR 1573095).

This was the first ever recorded functional testing failure of a hydraulic snubber at CPS.This snubber also failed its visual examination due to low fluid level (IR 1572100).

As required, two (2) additional snubbers were selected for scope expansion (IS 108C and iS 1011B). Both of these snubbers passed their functional tests. All four (4) of the 10% sample plan DTPG-6 snubbers were rebuilt (seals and fluid replaced) in CIR14 with their service lives reset. There were also 4 other DTPG-6 snubbers tested and rebuilt for SLM in C1R14. All 4 of these passed their functional tests and had their service lives reset. Snubber IS 102B was disassembled and a failure analysis was performed.

The results are as follows: IS 102B -This is an E-70, E-System snubber and it failed the activation portion of its functional test with a low lockup rate reading in the tension direction.

The lockup rate acceptance criterion is between 6 and 30 inches per minute and a 3.49 inch per minute lockup rate was recorded.

This snubber has been installed in its current location ('B' Main Steam line on the 779 foot elevation of the Drywell) since plant startup (February 1987) and has never been rebuilt. This snubber tested satisfactorily in RF2 (March 1991) and has been visually inspected satisfactorily every 3 or 4 years since plant startup. This snubber currently has a 21-year PM frequency.

Disassembly noted only one anomaly. The seal on the transfer tube (paddle side dam) was flat on the dam side sealing surface and appeared to be slightly larger in overall diameter than the other O-ring on the transfer tube. All seal, fluid and metal inspections noted the rest of the snubber was in very good condition, especially considering the age and service time of this snubber. Both transfer tube O-rings were saved and will be sent off for further failure analysis.

This snubber was replaced with a spare E-70 snubber (serial number 036E70). This area of the plant is considered a harsh environment.

Despite this failure, the PM frequency for this snubber will conservatively remain at 21-years, which is an industry standard for hydraulic snubbers.

The PM frequency will not changed based upon a previous service life evaluation of E-70 snubber seals and components at CPS, which resulted in a recommended service life well in excess of 21-years. The rebuild PMs performed in C1R14 were conducted to ensure all E-System snubbers will be rebuilt prior to the service lives identified in this evaluation.

It should be noted that hydraulic snubbers are installed in two systems at CPS, the Main Steam (MS) System and the Reactor Recirculation (RR) System. Hydraulic snubbers in the RR system had their functional testing acceptance criteria relaxed after a snubber reduction effort. However, the acceptance criteria for the MS system snubbers were not affected.

An ECR will be generated to evaluate if the MS hydraulic snubber acceptance criteria can be relaxed similar to the RR system snubbers.

If the RR snubber acceptance criteria were applied to the IS 102B test results, it would.have passed its functional test. Snubber IS 102B was rebuilt after failure analysis (new seals and fluid) and tested satisfactorily when compared to the more restrictive MS system acceptance criteria.

It will be installed as a spare in C1R15, since its service live has been reset. The degraded seal from this snubber will be sent off-site for further failure analysis.DTPG 6 Snubber

Conclusions:

Despite this failure, the DTPG-6 snubber performance is still acceptable.

However, these snubbers are no longer made (obsolete).

CPS has a very limited supply of spare hydraulic snubbers.

If excessive degradation is identified during rebuilds, we will quickly run out of spares. All efforts to date to obtain additional spares from peers have failed. Due to the visual exam failure of snubber IS 102B, all 38 hydraulic snubber will be visually inspected in C1RI5.

SECTION 3 LISTING OF EXAMINATION AND TESTING PROCEDURES PROCEDURE.T.L REV.;.: DR NUM. .... .... VE.386HA480 Certification of Nondestructive Test Personnel Rev. 26 GEH-ADM-1001 Procedure for Performing Linearity Checks on Ultrasonic Ver. 7 Instruments GEH-ADM-1002 Procedure for Nondestructive Examination Data Review and Ver. 5 Analysis of Recorded Indications GE-ADM-1005 Procedure for Zero Reference and Data Recording for Ver. 0 Nondestructive Examinations GEH-ADM-1025 Procedure for Training and Qualification of Personnel for Ver. 14 12-06 GE Energy, Nuclear Specialized NDE Applications GE-ADM-1052 Operational Guidelines for the Micro-Tomo Ultrasonic Data Ver. 0 Acquisition Systems GEH-ADM-1059 Computer Measurements of Digitized Images Ver. 5 GEH Proprietary Information GEH-ADM-1061 Administrative Procedure for Invessel Inspection Ver. 7 (IVVI)GEH-ADM-1062 Procedure for Determining and Documenting Examination Ver. 1 Requirements for Risk-Informed Inservice Inspections GEH-ADM-1064 Procedure for Performing Linearity Checks on Phased Array Ver. 2 Ultrasonic Instruments GEH-ADM-1065 Procedure for the Determination of the Micro-Tomoscan Data Ver. 1 Acquisition System Linearity GEH-ADM-1079 Guideline for Implementation and Use of the Customer Ver. 0 13-15 Notification Form (CNF)GEH-ADM-1082 Virus Control for Non-Core Load Assets Ver. 1 13-16 GEH-ADM-1090 Procedure for Post Use Verification of Surface Thermometers Ver. 0 PDI Generic Procedure for the Ultrasonic Examination of GEH-PDI-UT-1 Ver. 8 Ferritic.Pipe Welds G EH-PDI-UT-2 PDI Generic Procedure for the Ultrasonic Examination of Rev.7 Austenitic Pipe Welds G EH-PDI-UT-3 PDI Generic Procedure for the Ultrasonic Thru Wall Sizing in Ver. 3 Piping Welds _____3 GEH-.PDI-UT..10 PDI Generic Procedure for the Ultrasonic Examination of Rev.4 Dissimilar Metal Welds GEH-TP-315 Procedure for the Operation and Maintenance of the Jet Pump Ver. 2 12-31 Beam UT Tooling System GEH-TP-400 Procedure for the Operation and Maintenance of the SP2000 Ver. 0 13-38 RPV OD System GEH-TP-401 Procedure for the Operation and Maintenance of the SP2K Nova Ver. 0 Scanner G EH-TP-405 Procedure for the Operation and Maintenance of the Universal Ver. 2_ IMotion Controller (UMC)

SECTION 3 LISTING OF EXAMINATION AND TESTING PROCEDURES PROCEDURE........

.TIL REV. DR NUMBER.-..

VER.~GEH-TP-405A Supplemental Configuration Table for the UMC Tooling Ver. I Procedure GEH-TP-415A Procedure for the Operation and Maintenance of the Z-Scan PA Ver. 0 Enclosure GEH-UT-113 Ultrasonic Examination of Babbitted Bearings Ver. 2 GEH-UT-247 Procedure for Phased Array Ultrasonic Examination of Ver. 2 10-08 Dissimilar Metal Welds GEH-UT-300 Procedure for Manual Examination of Reactor Vessel Ver. 12 13-34 Assembly Welds in Accordance with PDI GEH-UT-304 Procedure for Manual Ultrasonic Planar Flaw Sizing in Ver. 10 GEH-UT_____304_

Vessel Materials

_____10 GEH-UT-309 Procedure for Manual Ultrasonic Planar Flaw Sizing of Nozzle Ver. 13 Inner Radius and Bore Regions GEH-UT-311 Procedure for Manual Ultrasonic Examination of Nozzle Inner Radius, Bore and Selected Nozzle to Vessel Regions Procedure for Automated Ultrasonic Examination of Jet GEH-UT-547 Pump Beams with Phased Array Technique in Boiling Water Ver. 5 Reactors GEH-UT-601 Procedure for Ultrasonic Thickness Measurements for Ver. 7 Flow Accelerated Corrosion (FAC)GE-UT-605 Procedure for the Performance of Straight Beam Ver. 4 Examinations Procedure for the Examination of Reactor Pressure Vessel Welds 10-03 GEH-UT-716 From the Outside Surface with MicroTomo in Accordance with Ver. 3 13-35 Appendix VIII 13-35 Procedure for the Examination of Reactor Pressure Vessel GEH-UT-718 Nozzle Inside Surface Radius Sections from the Outside Surface Ver. 3 11-02 With MicroTomo in Accordance with Appendix VIII GEH-UT-720 Procedure for the Examination of Core Support Welds from the Ver. 1 11-18 Reactor Pressure Vessel Outside Surface with the SP2000 GEH-VT-206 Procedure for Invessel Visual Inspection (IVVI) of BWR 6 RPV Ver. 14 11-24 Internals BPI-9-XI Basic PSA Inc.__P___-9-______

Nondestructive Examination VT -Personnel 5 N/A Basic PSA Inc.TR-954 Operation Procedure for the Barker/Diacon 4 N/A S400NM Snubber Test Machine ER-AA-335-002 Liquid Penetrant Examination 6 N/A ER-AA-335-003 Magnetic Particle Examination 5 N/A ER-AA-335-005 Radiographic Examination 5 N/A SECTION 3 LISTING OF EXAMINATION AND TESTING PROCEDURES PROCEDURE...

TIL ..REV./NUMBER. , ..: .. .VER.. R ER-AA-335-014 VT-1 Visual Examination 8 N/A ER-AA-335-015 V1-2 Visual Examination 13 N/A ER-AA-335-016 VT-3 Visual Examination of Component Supports, 9 N/A A6ttachments and Interiors of Reactor Vessel ER-AA-335-017 V'-3 Visual Examination of Pump and Valve Internals 8 N/A CPS 9843.02 Operational Pressure Testing of Class 1, 2, and 3 Systems 43' N/A+ 4 +

SION 4 LISTING OF EXAMINAT AND TESTING PERSONNEL Name Title MT PT UT VT-1 VT-2 VT-3 Comments Erickson, Scott Project Level III III III III III III III None Holasek, Wade ISI Coordinator III III III III IlI III None Manual Level II PDI II Juell, Andy Piping I I 12/30/14 II II II None Manual Level II PDI Mahoney, Patrick Piping II 11 II II II II None Manual Level II PDI Olson, Chad Piping II II II II II II None Manual Level II PDI Reid, Wally Piping/RPV II II II II II II None Manual Level II PDI Reisewitz, Jack Piping/RPV II II-L II II II II PT: Visible Dye Only UT: Thick, Straightbeam, Driver, Charles Jr. Manual L-1 N/A N/A 11-L N/A N/A N/A and Equip. Operator King, Larry Manual L-I N/A N/A N/A N/A N/A N/A Not Certified Teer, Ryan Manual L-I I II II-L N/A N/A N/A UT: Thickness Only Burns, Billy Snubber L-11 11-L II N/A II II II MT: Yoke Only Congdon, Chad Snubber L-11 II II II II II II None UT: Thickness and Frencl, David BOP Lead II II II-L II II II Straightbeam Only Robideau, Kim BOP Lead II II N/A II II II None Bullen, J. Mike BOP Level II II II II II II II None Montgomery, Kent BOP Level II II II II II II II None Serth, Joe BOP Level II II II II II II II None Shamblin, Philip BOP Level II Ili Ili Ill Ill Ill Ill None UT: Thickness and Danson, Chris BOP Level II Turbine II II II-L II II II Straightbeam Only 0 S@oN4 4 LISTING OF EXAMINATION AND TESTING PERSONNEL Name Title MT PT UT VT-1 VT-2 VT-3 Comments Fish, Karen BOP Level II Turbine II II II II II II None Michael, Dickey BOP Level II Turbine II II II II II II None UT: Non-Section Xl, APP Wannamaker, Luz BOP Level II Turbine II II II II II II VII, or PDI UT: Thickness and Downer, Ron FAC Lead N/A N/A II-L N/A N/A N/A Straightbeam Only UT: Non-Section Xl, APP Davi Arnaud FAC Lead II II II II II II VII, or PDI Seymore, Alan FAC Data Controller N/A N/A 1I-L N/A N/A N/A UT: Thickness Only Wert, Kimberly FAC Data Controller N/A N/A II II II II UT: Thickness Only Darling, Teresa FAC Level II N/A N/A 1I-L N/A N/A N/A UT: Thickness Only UT: Thickness and Edwards, Jeb FAC Level II II II ll-L II II II Straightbeam Only Fish, Melissa FAC Level II N/A N/A II N/A N/A N/A None UT: Thickness and Gauthier, Mark FAC Level II I-T II ll-L N/A N/A N/A Straightbeam Only Johnson, Jimmy FAC Level II N/A N/A II N/A N/A N/A None UT: Thickness and Lang, Ed FAC Level II N/A N/A l-L N/A N/A N/A Straightbeam Only Myers, Gregory FAC Level II II II 1I-L II II II UT: Thickness Only UT: Thickness and Shaugabay, Dane FAC Level II N/A N/A ll-L N/A N/A N/A Straightbeam Only Pinti, Robert FAC Level II II II 11-L II II II UT: Thickness Only Seng, Tony FAC Level II N/A N/A II I I I None Setzer, Zach FAC Level II I-T I-T 1I-L I-T I-T I-T UT: Thickness and Winkle, Morgan FAC Level II N/A N/A ll-L N/A N/A N/A Straightbeam Only 0.S@ON 44 LISTING OF EXAMINATION AND TESTING PERSONNEL Name Title MT PT UT VT-1 VT-2 VT-3 Comments Dummer, Brad SP2000 RPV DA III III III III III III None Minor, Chris SP2000 RPV DA III III III III III III None SP2000 RPV Gauthier, Clint Operator II II II II II II None SP2000 RPV Hilborn, Mark Operator II II 1II II II II None SP2000 RPV Liendo, Oscar Operator 11-L Il II II II II MT: Yoke Only SP2000 RPV Raymond, Tyler Operator N/A N/A II N/A N/A N/A None DuBose, Patrick SP2000 RPV L-I N/A N/A N/A N/A N/A N/A Not Certified UT: Thickness and Barta, Jonathan SP2000 RPV L-I N/A N/A II-L N/A N/A N/A Straightbeam Only Herrick, Cody SP2000 RPV L-I N/A N/A I N/A N/A N/A None Martinez, Jaime SP2000 RPV L-I I-T I-T II-L N/A N/A N/A UT: Thickness Only UT: Thick, Straightbeam, Phillips, Jonathan SP2000 RPV L-I N/A N/A 11-L N/A N/A N/A and Equip. Operator Schuler, Mark SP2000 RPV L-I N/A N/A I-T N/A N/A N/A None Makar, Jason SP2000 RPV ET N/A N/A N/A N/A N/A N/A Not Certified Munn, Richmond SP2000 RPV ET I I-T II N/A N/A N/A None Catron, Ernie SP2000 Piping DA III III III N/A N/A N/A None Rachal, Andre SP2000 Piping DA N/A N/A II N/A N/A N/A None SP2000 Piping Fish, Cody Operator N/A I II N/A N/A N/A None SP2000 Piping Hoyer, Matt Operator N/A N/A II N/A N/A N/A None SP2000 Piping Subido, Nicholas Operator II II II II II II None SOON4 LISTING OF EXAMINATION AND TESTING PERSONNEL Name Title MT PT UT VT-1 VT-2 VT-3 Comments SP2000 Piping Van Hecke, Charles Operator N/A N/A II N/A N/A N/A None Barrier, James SP2000 Piping L-I N/A N/A N/A N/A Not Certified Gartsu, Michael SP2000 Piping L-I N/A N/A N/A N/A N/A N/A Not Certified Hatrick, Paul SP2000 Piping L-I N/A N/A N/A N/A N/A N/A Not Certified Phillips, Nicholas SP2000 Piping L-I N/A N/A I-T N/A N/A N/A None UT: Thickness and Shelton, Lance SP2000 Piping L-I N/A N/A II-L N/A N/A N/A Straightbeam Only Smalley, Jeremy SP2000 Piping L-I N/A N/A N/A N/A N/A N/A Not Certified Axmaker, Andy SP2000 Piping ET N/A N/A N/A N/A N/A N/A Not Certified Weston, Stan SP2000 Piping ET N/A N/A II N/A N/A N/A None III DuBose, George JPB UT L-Ill N/A N/A 1/17/16 N/A N/A N/A None II Frana, Jeremy JPB UT Operator N/A N/A 4/29/14 N/A N/A N/A None II UT: Non-Section Xl, APP Cameron, Gary JPB ET N/A N/A 2/21/16 N/A N/A N/A VII, or PDI Clark, Charles III III III III III W heet, Elford, II II II II II 11 Szymkiewicz, Dave II II Culp, Craig II Combs, Jeff II Parrent, Tom II Sturgeon, Heather II SION 4 LISTING OF EXAMINATION AND TESTING PERSONNEL Name Title MT PT UT VT-1 VT-2 VT-3 Comments Sherman, Byron II Keen, Nigel II Primeaux, Joe II Thomas, Norman 0. I1 Strick, Richard A. II Alford, William VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / 1I-L Limited to IVVI Inspections Berry, Kenneth VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / 11-L Limited to IVVI Inspections Boyd, Marty VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Boyd, Rodney VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Brinkman, Timmy VT-1,2,3 / III VT-1,2,3 / III VT-1,2,3 / III COE Britt, Gary VT-1,3 / III-L VT-1,3 / III-L VT-1,3 / III-L Limited to IVVI Inspections Byrd, James VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Crawford, Timothy VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Croom, Justin VT-1,3 / II-L VT-1,3/ II-L VT-1,3 / II-L Limited to IVVI Inspections Davis, Kristian VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Deane, Lewis VT-1,3 /II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Edwards, Keith VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / I-L Limited to IVVI Inspections Farrell, Wayne VT-1,3 / II-L VT-1,3 / Il-L VT-1,3 / II-L Limited to IVVI Inspections Garner, Blair VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections

-0 SION 4 LISTING OF EXAMINATION AND TESTING PERSONNEL Name Title MT PT UT VT-1 VT-2 VT-3 Comments Garrison, David VT-1,3 / II-L VT-1,3 / 1I-L VT-1,3 / II-L Limited to IVVI Inspections Genes, Elliott VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Herman, Dustin VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Hill, DeWane VT-1,3 / 1I-L VT-1,3/ II-L VT-1,3 / I-L Limited to IVVI Inspections Hinson, Nathaniel VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / 11-L Limited to IVVI Inspections Holley, Ryan VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Holmes, George VT-1,3 / II-L VT-i-,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Howard, James VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Joffe, Nicholas VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Kee, Jon VT-1,3 / III-L VT-1,3 / III-L VT-1,3 / III-L Limited to IVVI Inspections Kemp, Michael VT--1,3 / III VT-1i,3 / III VT-1,3 / III None Kulkoski, Daniel VT-1,3 / III-L VT-1,3 / III-L VT-1,3 / III-L Limited to IVVI Inspections Lane, Jeremy VT-1,3 / II-L VT-1,3/ I-L VT-1,3 / II-L Limited to IVVI Inspections Lemmons, Eric VT-1,3 /III-L VT-1,3 / III-L VT-1,3 / III-L Limited to IVVI Inspections McDonald, Michael VT-1,3/ II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections McIntyre, Chance VT-1,3 /II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Moore, Thomas VT-1,3 / II-L VT-1,3 / 1I-L VT-1,3 / II-L Limited to IVVI Inspections Neau, David VT-1,3 / III-L VT-1,3 / III-L VT-1,3 / III-L Limited to IVVI Inspections Overton, John VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Palmer, Philip VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Perrone, Robert VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Petitte, Paul VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Ross, Daniel VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Schardien, Steven VT-1,3 / II-L VT-1,3 / II-L VT-1i,3 / II-L Limited to IVVI Inspections Shepard, Calvin VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections

-0 SOON 4 LISTING OF EXAMINATION AND TESTING PERSONNEL Name Title MT PT UT VT-1 VT-2 VT-3 Comments Stanforth, R. Brian VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Teodoro, Mikado VT-1,3 / 1I-L VT-1,3 / 1I-L VT-1,3 / II-L Limited to IVVI Inspections Wall, Eddie VT-1,3 /II-L VT-1,3 /Il-L VT-1,3/ IlI-L COE Whalen, Starling VT-1,3 / II-L VT-1,3 / II-L VT-1,3 / II-L Limited to IVVI Inspections Whitaker, Robert VT-1,3 / IlI-L VT-1,3 / III-L VT-1,3 / II-L Limited to IVVI Inspections Phillips, Nickolas I-T Anderson, Edward VT-1,3/III-L VT-1,3/1II-L VT-1,3/111 Limited to IVVI Inspections Hoffman, Eugene II VT-1,3/Il-L VT-1i,3/11-L VT-1,3/II-L Limited to IVVI Inspections SECTION 5 LISTING OF EXAMINATION AND TESTING EQUIPMENT quipment, SN Mfg %Size Model, Auto Systems.Auto System ZPA-5551 N/A N/A Z-Scan PA Auto System TEC-208M-01 0 N/A N/A Micro-Tomoscan Reference Block Reference Block CAL-1 27-AX-2 N/A N/A SS Axial Flaw Reference Block CAL-1 27-CIRC-2 N/A N/A SS Circ Flaw Reference Block CAL-360-AX-2 N/A N/A SS Depth Block Reference Block CAL-360-CIRC-2 N/A N/A SS Depth Block Reference Block CAL-DPTH-069 N/A N/A SS Depth Block Reference Block CAL-IIW2-036 N/A N/A CS IIW Type 2 Reference Block CAL-11W2-063 N/A N/A CS 11W Type 2 Reference Block CAL-RHOM-106 N/A N/A CS Rompas Block Reference Block CAL-RHOM-107 N/A N/A CS Rompas Block Reference Block CAL-STEP-1 17 N/A N/A SS Step Wedge Reference Block CAL-STEP-1 23 N/A N/A CS Step Wedge Reference Block CAL-STEP-126 N/A N/A SS Step Wedge Reference Block CAL-STEP-127 N/A N/A SS Step Wedge Reference Block CAL-STEP-136 N/A N/A CS Step Wedge Reference Block CAL-STEP-1 44 N/A N/A CS Step Wedge Reference Block CAL-STEP-165 N/A N/A CS Step Wedge Reference Block CAL-STEP-1 75 N/A N/A CS Step Wedge Reference Block CAL-STEP-1 77 N/A N/A CS Step Wedge Reference Block CAL-STEP-179 N/A N/A CS Step Wedge Reference Block CAL-STEP-1 80 N/A N/A CS Step Wedge Reference Block CAL-STEP-1 83 N/A N/A CS Step Wedge Reference Block CAL-STEP-1 88 N/A N/A SS Step Wedge Reference Block CAL-STEP-1 93 N/A N/A SS Step Wedge Misc. VVT-TRGT-200 N/A N/A IVVI SRCS Misc. VVT-TRGT-201 N/A N/A IWI SRCS Misc. VVT-TRGT-202 N/A N/A IWI SRCS Misc. VVT-TRGT-255 N/A N/A IVVI SRCS Misc. VVT-TRGT-259 N/A N/A IVVI SRCS Misc. VVT-TRGT-272 N/A N/A IWI SRCS Misc. VVT-TRGT-328 N/A N/A IVVl SRCS Thermometers Thermometer 281399 PTC N/A 312F Thermometer 281414 PTC N/A 312F Thermometer 281425 PTC N/A 312F Thermometer 281427 PTC N/A 312F Thermometer 281444 PTC N/A 312F Thermometer 281663 PTC N/A 312F Thermometer 281664 PTC N/A 312F Thermometer 283163 PTC N/A 312F Thermometer 283175 1PTC N/A 312F Thermometer 1283180 PTC N/A 312F Transducers Transducer 00C51 X KBA 0.375" Comp-G Transducer 574613934 KBA 2 x 11 MSEB 2(E)Transducer 010B85 KBA 0.375" Comp-G Transducer 010CPL KBA 0.375" Comp-G Transducer 010HB9 KBA 0.375" F Transducer 01 OHXV KBA 0.50" Comp-G Transducer 01178H KBA 0.5" x 1.0" 389-030-680 Transducer 01178N KBA 0.5" x 1.0" 389-030-680 Transducer 014BN1 KBA 0.25" Comp-G Transducer 01 4JWK KBA 0.25" Comp-G Transducer 01 L9Y4 KBA 1 (0.64"xO.472")

Single Transducer 01 LWOP KBA 0.5" x 1.0" 389-030-680 Transducer 01 LWOT KBA 0.5" x 1.0" 389-030-680 Transducer 01LW10 KBA 0.5" x 1.0" 389-030-680 Transducer 01LW13 KBA 0.5" x 1.0" 389-030-680 Transducer 01 RODR KBA 0.375" F Transducer 01 R4R2 KBA 0.5" x 1.0" 389-030-680 Transducer 01 R4R4 KBA 0.5" x 1.0" 389-030-680 Transducer 01X1 HV/0200WN GEIT 2(18 x 10)mm 115-000-575 Transducer 02297D/02297J GEIT 2(18 x 1 0)mm 115-000-575 Transducer 02297F/O1X1HM GEIT 2(18 x10)mm 115-000-575 Transducer 026K93 KBA 0.50" F Transducer 026KY8 KBA 0.500 F Transducer 026R1 1 KBA 0.25" F Transducer 026W30 KBA 0.25" F Transducer 04-365 RTD 2(1 Oxl 8)mm TRL2-Aust Transducer 06-627 RTD 2(1Oxl 8)mm TRL2-Aust Transducer 07-1645 RTD EII(32x22)mm 45 0 T1 -St Transducer 07-788 RTD EII(30x25)mm 60°L2-St Transducer 09-597 RTD 2(12x25)mm 70 0 TRL2-St Transducer 13-1345 RTD 2(1 Oxi 8)mm TRL2-Aust Transducer 13F004R4 KBA 0.5" x 1.0" 389-030-680 Transducer 13F004R5 KBA 0.5" x 1.0" 389-030-680 Transducer 22BC-09005 Sigma 2(1.1"xO.62")

SDC3 Transducer 22BC-09009 Sigma 2(1.1 "x0.62") SDC3 Transducer 98-292 RTD 1.0" 01.2.25 Utility Supplied Equipment MT MT Equip Parker MT 2092 Research N/A B-100 Parker MT 8871 Research N/A B-300 Parker MT 10035 Research N/A B-300 Parker MT 1724 Research N/A B-310 Parker MT 10054 Research N/A DA-200 MT 160 Magnaflux N/A PL-10 IMT 30601 Maqnawerks N/A PSF-10SVM MT PAR-ACMT-069 Magnaflux N/A Y-6 Powder Mag Powder 09K021 Magnaflux N/A #2 Yellow Mag Powder 04K076 Magnaflux N/A 8A Red Mag Powder 11 F22K Magnaflux N/A 14AM Flourescent Mag Powder 11 K021 Magnaflux N/A BA Red Mag Powder 11 L029 Magnaflux N/A 20B Flourescent PT Cleaner Cleaner 07M02K Magnaflux N/A SPOTCHECK/SKC-S Cleaner 09K09K Magnaflux N/A SPOTCHECK/SKC-S Cleaner 11 C09K Magnaflux N/A SPOTCHECK/SKC-S Cleaner 11 E03K Magnaflux N/A SPOTCHECK/SKC-S Penetrant Penetrant 07L1 1K Magnaflux N/A SPOTCHECK/SKL-SP1 Developer Developer 08F03K Magnaflux N/A SPOTCHECK/SKD-S2 Developer 08M22K Magnaflux N/A SPOTCHECK/SKD-S2 Developer 09L06K Magnaflux N/A SPOTCHECK/SKD-S2 UT Couplant Couplant 07165 Humex N/A N/A Couplant 09225 Sonotech N/A Ultragel I1 Reference Blocks Reference Block CB-02-140 N/A N/A CS Reference Block CB-02-141 N/A N/A SS Reference Block CB-02-142 N/A N/A SS Reference Block J-2318 N/A N/A CS Reference Block UT 1-0 N/A N/A CS Reference Block UT 2-0 N/A N/A CS Reference Block UT 4-0 N/A N/A CS Reference Block UT 5-0 N/A N/A CS Reference Block UT 6-0 N/A N/A CS Reference Block 08-7463 N/A N/A CS Reference Block 38 CLT N/A N/A N/A Reference Block 40 CLT N/A N/A N/A Transducers Transducer 735511 N/A N/A N/A Transducer 735512 N/A N/A N/A Transducer 735513 N/A N/A N/A Transducer 736298 N/A N/A N/A Transducer 736299 N/A N/A N/A Transducer 736302 N/A N/A N/A Scopes I I UT Scope 41185806 Panametrics 37 DL Plus UT Scope 91727708 Panametrics 38 DL Plus Section 6 REPAIR AND REPLACEMENT DATA REPORTS NIS-2 OWNER'S DATA REPORT This section provides a listing of the ASME Section Xl repairs or replacements performed since the last Summary Report.All repairs and replacements are of a routine nature. CPS did not identify any flaws during performance of any ISI examination that required a repair or replacement.

CPS installed a number of modifications including the replacement of portions of the Reactor Water Cleanup System piping and valves.Following the listing of repairs or replacements are copies of NIS-2 Owner's Data Reports for all of the Class 1, 2, and 3 repairs and replacements which CPS performed during this reporting period. Data reports for any components or parts used in support of those NIS-2's have not been included but are filed with Section XI repair and replacement records.The records for all Section XI repairs and replacements are available and located in the Clinton Records Vault.

SECTION 6 REPAIR AND REPLACEMENT

SUMMARY

NIS-2 Number Class Description RF-14-001 3 Replaced Parts of a Component Support 1VC04001V RF-14-002 3 Replaced Conversion Kit in Valve 1G33F033 RF-14-003 3 Replaced Valve 1SX004C RF-14-004 3 Replaced Valve 1SX008C RF-14-005 3 Replaced Valve 1SX003C RF-14-006 3 Removed and installed Pipe Line !SX08AA-3" (Repaired)

RF-14-007 1 Replaced Pump Seal in 1B33CO01A NSC01 -Modified Piping Component by installing a Blind RF-14-008 2 Coupling (EC371540)

RF-14-009 3 Replaced Relief Valve 11A128A RF-14-010 3 Replaced the Disk in Valve 1SX024A RF-14-011 3 Replaced Relief Valve 1SX291 and some Piping Component RF-14-012 3 Replaced Relief Valve 11A128B RF-14-013 1 Repaired Spare Main Steam Isolation Valve (MSIV) Poppet RF-14-014 3 Replaced Bolting on West Evaporator Endbell on OVC13CB RF-14-015 3 Div III SX Pump Spare -Repaired the Discharge Head Welds NIS-2 Number Class Description RF-14-016 3 Replaced Valve 1 FC135 RF-14-017 3 Replaced Valve 1SX019A Replaced One (1) Hex Nut on Mechanical Seal Flange of RF-14-018 2 1E12C002B RF-14-019 3 Replaced Relief Valve 1SX208B RF-14-020 3 Repairs Performed on a Spare Valve, S/N 16749449 Replaced Two (2) Belleville Washers in the Spring Pack by RF-14-021 1 NWS Technologies RF-14-022 2 Fabricated an Orifice from a Plate for 1E12DO01A RF-14-023 2 Fabricated an Orifice from a Plate for 1E12DO01 B RF-14-024 1 Replaced SRV 1B21F041A and few Bolting RF-14-025 1 Replaced SRV 1B21F047B and few Bolting RF-14-026 1 Replaced SRV 1B21F041D and few Bolting RF-14-027 1 Replaced SRV 1 B21 F051C and few Bolting RF-14-028 1 Replaced Five (5) Hydraulic Snubbers RF-14-029 1 Replaced Two (2) Hydraulic Snubbers RF-14-030 1 Replaced Two (2) Whip Restraints RF-14-031 3 Replaced Four (4) Mechanical Snubbers RF-14-032 3 Installed 8" Tee, A Flange, and 8" Valve per EC 393240 NIS-2 Number Class Description RF-14-033 3 Replaced Two (2) Mechanical Snubbers RF-14-034 1 Replaced a Mechanical Snubber, 1FW02004S RF-14-035 1 Replaced a Mechanical Snubber, 1MS05024S RF-14-036 3 Replaced One Mechanical Snubber, 1RT05003S RF-14-037 3 Replaced Two (2) Mechanical Snubbers RF-14-038 2 Replaced One Mechanical Snubber, 1RH17002S RF-14-039 2 Replaced One Mechanical Snubber, 1 IS01022S Removed Two (2) Mechanical Snubbers and One Spring Hanger RF-14-040 3 per EC 390995 RF-14-041 1 Replaced Seventeen (17) CRDMs RF-14-042 1 Replaced Firing Chamber in the Squib Valve 1C41F004A RF-14-043 1 Replaced a Nut on RCIC flange to the RPV Head Vent flange RF-14-044 2 Replaced the Disc in Valve 1E12F495B RF-14-045 1 Replaced Poppet in MSIV 1 B21 F022A RF-14-046 2 Replaced Valve 1E22F006 and Piping RF-14-047 2 Replaced Valve 1VQ004A and One Nut Replaced Disk in Valve 1E12F068A and Repaired Valve Body RF-14-048 3 Inside RF-14-049 3 Replaced Piping Components in NSX06 System.

NIS-2 Number Class Description RF-14-050 2 Replaced Relief Valve 1E12FO17A RF-14-051 3 Replaced Valve 1SX014A RF-14-052 3 Replaced Valve 1SX004A RF-14-053 3 Replaced Disk in Valve 1E12FO14A RF-14-054 3 Replaced Valve 1SX008A ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Data Report No. RF-14-001 Date: 4/27/2012 Sheet 1 Unit: 1 1377149-01 of 1 Name Address Repair Organization P.O. No., Job No.3. Work Performed by:. Clinton Power Station Name 8401 Power Road, Clinton, IL 61727 Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NVC02 Code Class 3 5(a) Applicable Construction Code Pipe: Component:

1974 Edition S74 Addenda N/A Code Case 1974 Edition S74 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec )I 2004 Ed.; No Ad.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped PP Basic Engineer PIPING SYSTEM N/A NVC02 1986 Replacement Yes 7.

Description:

Peplaced parts of a Component Supports, 1VC04001V, see Remarks for details.8. Tests Conducted:

Hydrostatic El Pneumatic El Nominal Operating Pressure R]Other El Exempt El Pressure:

psi Test Temp: OF ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Replaced Clamp, Pipe, and Plate on Component Support 1VC04001V.

Receiving Information:

Clamp: Cat ID -1423415; UTC # -2893323 Pipe: Cat ID -1153170; UTC # -2827665 Plate: Cat ID -1153305; UTC # -2106039 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this Xt Pl 1.ovy conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp W4 A Certificate of Authorization No. QJ) A Signed VA Q&ý=4e '-7--t1- ,20I2'L OwJe or Owne5D signee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspetors and the State of Province ofIllinQois and employed by Hartford Steam Boiler_of _CT1 have inspected the components described in this Owner's Report during the period-5/f to 4/27/2012 , and state that to the best of my knowledge and belief, the Owrer Aas performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furthermore, eýither ý/nspector nor his employer shall be liable in any manner for any personal injury or property c arne r lois of any kind arising from or connected with this inspection.Commissions N&* J A, N,. 7 .1 o Date T¶cfr iphr ,20 1 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name 8401 Power Rd. Clinton. IL 61727 Address 3. Work Performed by: Clinton Power Station Name 8401 Power Rd, Clinton, IL 61727 Address Data Report No. RF-14-002 Date: 5/8/2012 Sheet 1 of 1 Unit: 1 669080-01 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable

4. Identification of System: NRT03 Code Class 3 5(a) Applicable Construction Code Pipe: Component:

1974 Edition S74 Addenda N/A Code Case 1974 Edition W74 Addenda 1682-1 Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec X) 2004 Ed.; No Ad.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V WKM 70-118139 999 1G33F033 1976 Replacement Yes 7.

Description:

Replaced Conversion Kit.8. Tests Conducted:

Hydrostatic El Pneumatic El Nominal Operating Pressure [J]Other Mi Exempt El Pressure: psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Replaced Conversion Kit (which consists of Bonnet, Spindle (stem and disk), Bonnet Studs, and Bonnet Nut).Receiving Information:

Conversion Kit Cat ID -1418528; UTC # -2788817 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp J)) A Certificate of Authorization No. N) A Signed V1 -etV,.,-Date 5- b -,20'2._Ow&i or Ownerslignee, 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 Hartford Steam Boiler_of __CT have inspected the components described in this Owner's Report during the period Z. I1 2. 'i to 5/9/2012 , and state that to the best of my knowledge and belief, the Own r h s performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furthermore neith r the Inspector nor his employer shall be liable in any manner for any personal injury or propý Oa;aa o a loss of any kind arising from or connected with this inspection.

A T-aFl. Commissions N6 O19 ' A. N,.T. j./.ij 1-,1I Date Tn.speno n ah ig ren, ..r , 20)National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon CorDoration Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Data Report No. RF-14-003 Date: 5/16/2012 Sheet 1 of 1 Name Address Unit: 1 621579-01 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable

3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: NSX05 Code Class 3 5(a) Applicable Construction Code Pipe: Component:

1974 Edition S74 Addenda N/A Code Case 1974 Edition W76 Addenda 1774-1 Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec. XI 2004 Ed.; No Ad (c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V POSI-SEAL 16986266 NA 1SX004C 2007 Replacement Yes 7.

Description:

Replaced Valve.8. Tests Conducted:

Hydrostatic D Pneumatic El Nominal Operating Pressure R]Other Ii Exempt El Pressure:

psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 0 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Valve Cat ID -1159167; UTC # -2795512 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this Re '!I -.,t.%tv'1 conform to the rules of the ASME Code,Section XI repair or replacement Type Code Symbol Stamp KI I A Certificate of Authorization No. )a I A Signed tAý,Y m)-, E,,%~t, -, c YDate 16._ 201_2-.Owlr)or Own e,. D tsignee, Title U)CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Ins ectors and the State of Province of_.Ipoikjs.5 and employed by Hartford Steam Boiler_of CT_ have inspected the components described in this Owner's Report during the periodO a0, to 5/18/2012 , and state that to the best of my knowledge and belief, the Owher has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI. 0 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 Owner's Report.Furthermore, ngther thepspector nor his employer shall be liable in any manner for any personal injury or property da~nj or a ss of any kind arising from or connected with this inspection.

S' L//'--h Commissions ti eIboc69 Awt Date in.pn' 1 ina 19M Y t , 20 1 a.National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name RR3. Box 228. Clinton. IL 61727 Data Report No. RF-14-004 Date: 5/16/2012 Sheet 1 of 1 Address Unit: 1 696052-01 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable

3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: NSX05 Code Class 3 5(a) Applicable Construction Code Pipe: Component:

1974 Edition S74 Addenda N/A Code Case 1974 Edition W76 Addenda 1774-1 Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec. XI 2004 Ed.; No Ad (c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V Posi-Seal 19040425 N/A 1SXO08C 2009 Replacement Yes 7.

Description:

Replaced Valve.8. Tests Conducted:

Hydrostatic El Pneumatic 1:] Nominal Operating Pressure Other ED Exempt ED Pressure:

psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Valve Cat ID -1144946; UTC # -2846702 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this Uv. k cv.te , conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp W) A Certificate of Authorization No. M4 I A Sigd , ,Date -\6- 20J2-or Title Y1 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Ipslectors and the State of Province ofJIinojis

_ and employed by Hartford Steam Boiler_of CTI I have inspected the components described in this Owner's Report during the period"D-/,% o 1" 0 to 5/18/2012 , and state that to the best of my knowledge and belief, the O~nell has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI. 0 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 Owner's Report.Furth or ither the Inspector nor his employer shall be liable in any manner for any personal injury or pro ane r a loss of any kind arising from or connected with this inspection.

° or Commissions N 1 P 1 n/ (Y)A' I L Date Tnqnptnrg Oignm hirP ,20 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name RR3. Box 228. Clinton, IL 61727 Address Data Report No. RF-14-005 Date: 5/16/2012 Sheet 1 Unit: 1 624792-01 of 1 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NSX05 Code Class 3 5(a) Applicable Construction Code Pipe: 1974 Edition S74 Addenda N/A Code Case Component:

1974 Edition W76 Addenda 1774-1 Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec. XI 2004 Ed.; No Ad (c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V Fisher Controls 16986265 N/A 1SX003C 2007 Replacement Yes 7.

Description:

Replaced Valve.8. Tests Conducted:

Hydrostatic El Pneumatic El Nominal Operating Pressure 91 Other El Exempt D1 Pressure:

psi Test Temp: o F ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Valve Cat ID -1159167; UTC # -2795513 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this ikepi.Q .( CVe%*N+ conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp '4! A Certificate of Authorization No. N I AOI.,b-Signed Q6: F-A96 tt Dae5-1 -, 20_l____or Own..er's Efesignee, Tidle (J CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspeclors and the State of Province ofJIlinois_

and employed by Hartford Steam Boiler of CT LI have inspected the components described in this Owner's Report during the period NLSil-lL+/-.

to 5/22/2012 , and state that to the best of my knowledge and belief, the Ownel Ihs performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furthermorneiher thj 1 Inspector nor his employer shall be liable in any manner for any personal injury or propert'( dql~ge(or/

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

L ill: /Commissions N(lIf l 19. IA1.lDate T ;pprtneq~

Rign* r , 20_National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd.. Wavne. PA 19087 Data Report No. RF-14-006 Date: 6/12/2012 Address Sheet 1 of 1 2. Plant: Clinton Power Station Name RR3, Box 228. Clinton. IL 61727 Address Unit: 1 1457493-12 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable

3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: NSX07 Code Class 3 5(a) Applicable Construction Code Pipe: Component:

1974 Edition Summ 74 Addenda N/A Code Case N/A Edition N/A Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed.; No Ad.(c) Section X1 code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped PP ILLINOIS POWER PIPING SYSTEM N/A NSX07 1986 Repaired Yes 7.

Description:

Removed and installed Pipe Line 1SXA08AA-3" (interference).

8. Tests Conducted:

Hydrostatic E] Pneumatic El Nominal Operating Pressure Other El Exempt El Pressure: psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Removed and installed Pipe Line 1SXAO8AA-3", by welding, to accommodate replacing OVC04CA Fan.CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this Re I conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp NI At Certificate of Authorization No. kA I N Signed Qýý' Ea titDate 2L , 202'.-OwneQ Title U -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..jllinois and employed by Hartford Steam Boiler of _CT j have inspected the components described in this Owner's Report during the period o to 6/12/2012 , and state that to the best of my knowledge and belief, the Own&r s performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furthermore, neite 4e nspector nor his employer shall be liable in any manner for any personal injury or property da q .r: ss of any kind arising from or connected with this inspection.

, k(/I1 X._.Com m issions J I l N ,. .. ." Date Tn.pectnr'g Signahirp , 20 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd.. Wavne. PA 19087 Data Report No. RF-14-007 Date: 6/15/2012 Address 2. Plant: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address Sheet 1 Unit: 1 943387-01 of 1 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NGE01 Code Class 1 5(a) Applicable Construction Code Pipe: N/A Edition N/A Addenda N/A Code Case Component:

1971 Edition Winter 73 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec. XI 2004 Ed.; No Ad (c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped P BINGHAM/WILLAMET 14217101 NB-394 1B33COO1A 1977 Replaced Yes TE 7.

Description:

Replaced Pump Seal.8. Tests Conducted:

Hydrostatic El Pneumatic El Nominal Operating Pressure Other D Exempt ED Pressure:

psi Test Temp: OF ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Pump Seal Assembly:

Cat ID # 1184290; UTC # -2741256 Upper Gland -NB1474 Seal Holder -NB1364 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this RPe pýt CAL. 'V conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp 4 'fA Certificate of Authorization No. N I A-Signed I%, ,se 2 V Date C. S;- 201_2--Owne dorwner's.;esig nte, Title0-CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Irsppctors and the State of Province of Illinois and employed by Hartford Steam Boiler of __CT have inspected the components described in this Owner's Report during the period qlI /' a o to 6/15/2012 , and state that to the best of my knowledge and belief, the Owherf has performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furthermor,e, neithe l Inspector nor his employer shall be liable in any manner for any personal injury or propert' dlpgý or loss of any kind arising from or connected with this inspectiol

..\ .A.II 1 ./ Commissions N I0T Cl AIN _ L I Dae Tnc~ppctnr'q Sugnatu re _____National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd.. Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address Data Report No. RF-14-008 Date: 8/14/2012 Sheet 1 Unit: 1 of 1 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 1356031 -01 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NSCO1 Code Class 2 5(a) Applicable Construction Code Pipe: Component:

1974 Edition S74 Addenda N/A Code Case 1974 Edition S74 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec. XI 2004 Ed.; No Ad (c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped PP ILLINOIS POWER PIPING SYSTEM NA NSC01 1986 Replaced Yes 7.

Description:

Modified Piping Component by installing a blind coupling, see EC 371540 8. Tests Conducted:

Hydrostatic E] Pneumatic El Nominal Operating Pressure W]Other ED Exempt ED Pressure:

psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Info: Coupling -Cat ID -1444806; UTC # -2910325 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and thisiKt ? ck mtme IN conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp NY ,A Certificate of Authorization No. NJI A Signed 11___z_ __ __ F__ _ __ _ ,_ _V _ V Date -_ __,201.__Owner or Oner's De~iwef, Title ]CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Ipspctors and the State of Province of Illinois and employed by Hartford Steam Boiler_of CI-IV I have inspected the components described in this Owner's Report during the period 0L/ aI Ao 0. to 8/14/2012 , and state that to the best of my knowledge and belief, the Otner'ha-s performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Further e, nre r the Inspector nor his employer shall be liable in any manner for any personal injury or pro [ or a loss of any kind arising from or conn.cted with this inspectiop.

.____________-__Commissions

____0_ ____TA _ _ _ _ / _1 Date Signahire , 20 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd.. Wayne. PA 19087 Data Report No. RF-14-009 Date: 9/6/2012 Address 2. Plant: Clinton Power Station Sheet 1 Unit: 1 1349923-01 of 1 Name RR3, Box 228, Clinton. IL 61727 Address 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable

4. Identification of System: NIA01 Code Class 3 5(a) Applicable Construction Code Pipe: Component:

1974 Edition Win 1974 Addenda N/A Code Case 1977 Edition Sum 1977 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Add (c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V Anderson Greenwood N99657-00-0002

-- 11A128A 2003 Replacement Yes C 7.

Description:

Replaced Relief Valve 1IA128A 8. Tests Conducted:

Hydrostatic 0 Pneumatic LI Nominal Operating Pressure Other 11 Exempt El Pressure: psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI I 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Info: Valve -Cat ID -1389709; UTC # -2684586 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this RePC V -+iconform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp I4 I A Certificate of Authorization No. N I A Signed ce--; V, E -ýDate '-I -,2017-Owner Uwner's4;eJigee, Tidle 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 Hartford Steam Boiler of _CT/ have inspected the components described in this Owner's Report during the period 3 iL.( -d , to 9/6/2012 , and state that to the best of my knowledge and belief, the 04ner has performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Further !r er the Inspector nor his employer shall be liable in any manner for any personal injury or pro e loss of any kind arising from or connected with Ihis inspection. , .-, -,_________________Commissions tJt 10%1L~Date i 20 1 irp National Board, State, Province, and Endorsements 0

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965S Chesterbrook Blvd.. Wavne. PA 190R7 Data Report No. RF-14-010 Date: 9/10/2012 Address 2. Plant: Clinton Power Station Name RR3, Box 228. Clinton, IL 61727 Address Sheet 1 Unit: 1 1513811-01 of 1 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NSX04 Code Class 3 5(a) Applicable Construction Code Pipe: 1974 Edition S74 Addenda N/A Code Case Component:

1974 Edition Summ 75 Addenda _-e Remarks Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed.; No Ad.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V Anchor Darling Valve E-6214-127-1 N/A 1SXO24A 1978 Replacement Yes 7.

Description:

Replaced the Disk of Valve 1SX024A.8. Tests Conducted:

Hydrostatic El Pneumatic E] Nominal Operating Pressure E]Other ED Exempt W Pressure:

psi Test Temp: OF ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 0 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

ASME Section III Code Cases: 1516.1, 1567, 1622, 1635.1, 1677.Receiving Info: Disl -Cat ID -1145100; UTC# -2106003 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this 9,L F 4 to the rules of the ASME Code,Section XI. repail or replacement Type Code Symbol Stamp hi IA Certificate of Authorization No. N I A Signed tA1*' .' £v' ,c Date q.- 1O -,20%7-Signed Ov ov or Own~er's le-signee, "iltl '-CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Insyetors and the State of Province of Mlhinai. and employed by Hartford Steam Boiler_of CT JJI have inspected the components described in this Owner's Report during the period_ 3 Q), to 9/11/2012 , and state that to the best of my knowledge and belief, the Owndr has performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furtbern neither the Inspector nor his employer shall be liable in any manner for any personal injury or raity1~amage or a loss of any kind arising from or connected with this inspection

______________-_________CommissionsN0 i 109T1 A. 4/ r> , Date Tnsn'tn innrp 2National Board, State, Province, and Endorsements 0

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd.. Wayne. PA 190387 Data Report No. RF-14-011 Date: 11/20/2012 Address 2. Plant: Clinton Power Station Name RR3, Box 228. Clinton, IL 61727 Address Sheet 1 Unit: 1 1168927-01 of 1 3. Work Performed by: Clinton, Power Station Name RR3, Box 228, Clinton, IL 61727 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NSX06 5(a) Applicable Construction Code Pipe: 1974 Code Class 3 Edition S74 Addenda N/A Code Case Component:

1977 Edition Winter 77 Addenda N-154 Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec. XI 2004 Ed.; No Ad (c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V Rockwell Intemation BK134 N/A 1SX291 1983 Replacement Yes I 7.

Description:

Replaced Relief Valve, 1SX291 and some Piping Component.

8. Tests Conducted:

Hydrostatic 0]Pneumatic 0 Nominal Operating Pressure R Other D Exempt El Pressure: psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Pipe 1 1/2": Cat ID -1153243; UTC # -2809304 Valve 2": Cat ID -1398024; UTC # -2693887 Reducing Insert: Cat ID -1145910; UTC # -2825122 Reducing Insert: Cat ID -1145910; UTC # -2823852 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this R 4p1% " )o-y~conform to the rules of the ASME Code,Section XI. repir or replacement Type Code Symbol Stamp hJ.JA Certificate of Authorization No. 1b u A Signed K,,$4,t @ýý

-Date l%- 1,0 ,2012-Own rr Title V 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 Hartford Steam Boiler_of _CT have inspected the components described in this Owner's Report during the period to 11/20/2012 , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's 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 Owner's 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

/.3 '/- W, A Z /1 R./*r-c II. ;?o Date Tnpednr'e

_ignahire , 20 12. National Board, State, Province, and Endorsements 0

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name RR3. Box 228, Clinton, IL 61727 Data Report No. RF-14-012 Date: 2/14/2013 Sheet 1 Unit: 1 1394130-01 of 1 Address Repair Organization P.O. No., Job No.3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable

4. Identification of System: NIA Code Class 3 5(a) Applicable Construction Code Pipe: Component:

N/A Edition N/A Addenda N/A Code Case 1977 Edition Summ 77 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec. XI 2004 Ed. No Add (c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer

'National Other Year Repaired ASME Component Manufacturer Serial Number 'Board No Identification Built Replaced or Code Replacement Stamped V Anderson G Crosby N99657-00-0001 N/A 1 A1 28B 2003 Replacement Yes 7.

Description:

Replaced for IST testing.8. Tests Conducted:

Hydrostatic

[] Pneumatic W Nominal Operating Pressure El Other I- Exempt El Pressure: psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Relief Valve: Cat ID -1389709; UTC # -2684585 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this K*. P c.r-tEv'tconform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp J/I A Certificate of Authorization No. td J A Signed R, V Bt' "e, y Date 2 -15 ,20_ 1Owner's Defignee, "Tide 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 Hartford Steam Boiler_of _CT have inspected the components described in this Owner's Report during the period-: Ic to 7/18/2013 , and state that to the best of my knowledge and belief, the Owher h s performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furthermoreneit her Inspector nor his employer shall be liable in any manner for any personal injury or property 'a loss of any kind arising from or connected with this inspectio, , ,Commissions OyJ; I 4 -Date Tnocnnrq Siognabhrp , 20 National Board, State, Province, and Endorsements 0

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address Data Report No. RF-14-013 Date: 4/2/2013 Sheet 1 of 1 2. Plant: Clinton Power Station Name RR3, Box 228, Clinton. IL 61727 Address Unit: 1 1563421-01 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable

3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: MS Code Class 1 5(a) Applicable Construction Code Pipe: Component:

N/A Edition 1974 Edition N/A Addenda N/A Addenda N/A Code Case 1622 Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 1974 Ed.; No Ad (c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year RE Component Manufacturer Serial Number Board No Identification Built Re;7.

Description:

Repaired Spare MSIV Poppet (UTC # 2102086, S/N 1).8. Tests Conducted:

Hydrostatic El Pneumatic El Nominal Operating Pressure E]Other E] Exempt R Pressure:

psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Repaired Spare MSIV Poppet (UTC # 2102086, S/N 1).CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this A f. Y conform to the rules of the ASME Code, Section )I. repair or replacement Type Code Symbol Stamp _.JIA Certificate of Authorization No. 1 A Signed M' , ;- 6 a ==5 *g- Date Lk -L --, 20_X>.Ownerlo Own!5s.. gnee, Tite (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 ofIllinoiQs and employed by Hartford Steam Boiler_of_ CrT have inspected the components described in this Owner's Report during the period L 4--)j -to 4/2/2013 , and state that to the best of my knowledge and belief, the Owler hhs performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Fuhr .er the Inspector nor his employer shall be liable in any manner for any personal injury or pn,"e or a loss of any kind arising from or connected with this inspection.

r 1j,.Commissions

1- a k ý,e ln9 P~AXt Date Tnspe~ec Signabire 20 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name RR3. Box 228, Clinton. IL 61727 Data Report No. RF-14-014 Date: 4/22/2013 Sheet 1 of 1" "Address Unit: 1 1581852 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable

3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: NSX08 Code Class 3 5(a) Applicable Construction Code Pipe: 1974 Edition S74 Addenda N/A Code Case Component:

1974 Edition S76 Addenda N/A Code Case (b) Applicable Edition of Section )(I Utilized for Repairs or Replacements ASME Sec )(I 2004 Ed. No Add.(c) Section )(I code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped HX Carrier Corp. 202678 140448 OVCl 3CB 79 Replacement Yes 7.

Description:

Replaced bolting on west evaporator endbell.8. Tests Conducted:

Hydrostatic El Pneumatic

[] Nominal Operating Pressure []Other El Exempt El Pressure:

psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Bolting: Cat ID -1151725; UTC # -2110777 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp mJ A Certificate of Authorization No. NJ Signed H 1r-m. Q 4 W_% q Q, Y 7.- ,i.. 20A.3 Owne@oOw ý gnee, Tiek 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...Jllinois and employed by Hartford Steam Boiler_of -' 4, have inspected the components described in this Owner's Report during the period of %1 k to 4/22/2013 , and state that to the best of my knowledge and belief, the r has performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furthermor e t e the Inspector nor his employer shall be liable in any manner for any personal injury or propert di g ger a loss of any kind arising from or coqpected tihis i rjeiiior., Lillt Commissions LQ* I" A) mIE-Date Trigpedneg Si ,20j3. National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd.. Wayne. PA 19087 Data Report No. RF-14-015:

Date: 4/29/2013' Address Sheet 1 of 1 2. Plant: Clinton Power Station Name RR3. Box 228. Clinton. IL 61727 Address 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Unit: 1 P.O No. 100117316 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: N/A Code Class 3 5(a) Applicable Construction Code Pipe: 1974 Edition S 74 Addenda N/A Code Case Component:

1974 Edition S 76 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Add (c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped P Sulzer Pump 463565 N/A Spare Pump SX 2012 Repaired Yes 7.

Description:

Div. 3 SX Pump Spare -Repaired the dischrge Head welds WJ-01, WJ-03, and WJ-05.8. Tests Conducted:

Hydrostatic ON Pneumatic El Nominal Operating Pressure El Other El Exempt El Pressure:

psi Test Temp: 0 F ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Div. 3 SX Pump Spare -Repaired the dischrge Head welds WJ-01, W.-03, and WJ-05. Repairs performed by Sulzer Pump Co.CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this Re ?a conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp 141A Certificate of Authorization No. 141 A Signed M--;,-7, Zae~re 1 Q- -.2013 04e rowilgs tesignee, Tite CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel In pectors and the State of Province of IllinQjoi and employed by Hartford Steam Boiler of I C77 lhave inspected the components described in this Owner's Report during the period_______4 to 4/30/2013 , and state that to the best of my knowledge and belief, the Own ir has performed examinations and taken corrective measures described in this Owner's 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, concernAn the examinations and corrective measures described in this Owner's Report.Furthe*;g, n~ithr the Inspector nor his employer shall be liable in any manner for any personal injury or pro~era a or a loss of any kind arising from or connected with this inspection tIlL Commissions14 eia \ A NIL Date lTnqp.etnr Sipnahirpe , 20 Nr National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address Data Report No. RF-14-016 Date: 6/6/2013 Sheet 1 Unit: 1 949301-01 of 1 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NFC04 Code Class 3 5(a) Applicable Construction Code Pipe: 1974 Edition S74 Addenda N/A Code Case Component:

74 Edition W76 Addenda 1774-1 Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed. No Ad.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V Fisher Controls 18056390 7560 1 FC 135 1987 Replacement Yes 7.

Description:

Replaced Valve 1FC135 8. Tests Conducted:

Hydrostatic El Pneumatic El Nominal Operating Pressure [Other [] Exempt El Pressure:

psi Test Temp: OF ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Valve: Cat ID # -1145793; UTC # -2819700 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this R. conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp I/ [A Certificate of Authorization No. rJ )A Signed Date 6- -20_J__Owno.Jr Owner's Desghee, 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 Hartford Steam Boiler_of C11 have inspected the components described in this Owner's Report during the period I -a1i"aI J1- 6 to 6/6/2013 , and state that to the best of my knowledge and belief, the Owlner has performed examinations and taken corrective measures described in this Owner's 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 tJ examinations and corrective measures described in this Owner's Report.FurthermV,,eith tInspector nor his employer shall be liable in any manner for any personal injury or proe ag of any kind arising from or connected withtbis iospectjio.

-Commissions 19fl " Date Sinahu , 20.r National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Data Report No. RF-14-017 Date: 6/21/2013 Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Sheet 1 Unit: 1 1386756-01 of 1 Name Address Repair Organization P.O. No., Job No.3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NSX06 Code Class 3 5(a) Applicable Construction Code Pipe: Component:

1974 Edition 574 Addenda N240 Code Case 1974 Edition S76 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec. XI 2004 Ed.; No Ad (c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V Enertech 12049 N/A 1SXO19A 2011 Replacement Yes 7.

Description:

Replaced Valve 1SX019A.8. Tests Conducted:

Hydrostatic 0 Pneumatic

[] Nominal Operating Pressure Other ED Exempt ED Pressure: psi Test Temp: 0 F ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Valve: Cat ID -1146593; UTC # -2886560 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this RI p ?t

• to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp N) A Certificate of Authorization No. Nt) A Signed M ;&, Qm 4 F t;, x v Date Q -2% -, 2013, Ow(a or Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel I spectors and the State of Province of Illinois .and employed by Hartford Steam Boiler of have inspected the components described in this Owner's Report during the period Wi 2:7-.' .to 6/24/2013 , and state that to the best of my knowledge and belief, the has performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furth rm re in~ r the Inspector nor his employer shall be liable in any manner for any personal injury or prpertf4 a r a loss of any kind arising from or connected with this inspection.

____________

Comissions N'~I~ k<-~ i~'Date Inc nPitn Sinnal"r " , 20 NSa National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd.. Wayne. PA 19087 Data Report No. RF-14-018 Date: 7/29/2013 Address Sheet 1 of 1 2. Plant: Clinton Power Station Name RR3, Box 228. Clinton, IL 61727 Address Unit: 1 1285329-01 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable

3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: NRHO8 Code Class 2 5(a) Applicable Construction Code Pipe: 1974 Edition Summ 74 Addenda N/A Code Case Component:

1971 Edition Summ 73 Addenda 1567 Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec. XI 2004 Ed; No Ad.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped P Byron Jackson Pump 741-S-1449 N/A 1E12C002B 1978 Replacement Yes 7.

Description:

Replaced one (1) Hex Nut on Mechanical Seal Flange.8. Tests Conducted:

Hydrostatic El Pneumatic El Nominal Operating Pressure Other 0 Exempt El Pressure:

psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Cat ID # -1152155; UTC # -2106860 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this P-* .PtOhC", conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp WA Certificate of Authorization No. N)A Signed owA oRLOw;. E^ ".,.,.ey-Date 1-i2. -,2013 ow(J or Owngelf.s-De gnee, Tie CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inseors and the State of Province of Illinois and employed by Hartford Steam Boiler_of _CT have inspected the components described in this Owner's Report during the period* 2 ,0"1 to 7/29/2013 ,and state that to the best of my knowledge and belief, the Owrner as performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furthermore, nitle~tlpe Inspector nor his employer shall be liable in any manner for any personal injury or property dn'r 'oca loss of any kind arising from or connected with this inspection.

.A_ V Commissions

$(ocI(( i A, N I_ JQ(7 I \Date ____'A- J _j L_D Tnppt-nr,, Signatire , 20 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name RR3. Box 228. Clinton. IL 61727 Data Report No. RF-14-019 Date: 7/30/2013 Sheet 1 Unit: 1 1348544-01 of 1 Address 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NSX01 Code Class 3 5(a) Applicable Construction Code Pipe: 1974 Edition 574 Addenda N/A Code Case Component:

1977 Edition S1977 Addenda NONE Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec. XI 2004 Ed.; No Ad (c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME i Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V A. G. Crosby N99651-00-0004 N/A 1SX208B 2004 Replaced Yes 7.

Description:

Replaced relief valve 1SX208B.8. Tests Conducted:

Hydrostatic 0 Pneumatic El Nominal Operating Pressure 1 Other E] Exempt l Pressure:

psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Cat ID -1388242 ; UTC # -2691596 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this Re. PI.Q M to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp pjJA Certificate of Authorization No. ýJ JA Signed (5 t .Date '6O ,20I'Owner ko~ner's oewgte, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Ins ectors and the State of Province of Illinois..

and employed by Hartford Steam Boiler_of CT __ have inspected the components described in this Owner's Report during the period i to 7/30/2013 , and state that to the best of my knowledge and belief, the Ow erlhas performed examinations and taken corrective measures described in this Owner's 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, concernin examinations and corrective measures described in this Owner's Report.Furtherm i er e Inspector nor his employer shall be liable in any manner for any personal injury or properLy loss of any kind arising from or connected with this i spectioQ.Dat___n ______in__r_,20 Commissions BorSatPoicenndreet Date tnendp' inhr , 2O..,__ National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Data Report No. RF-14-020 Date: 9/30/2013 Address Sheet 1 of 1 2. Plant: Clinton Power Station Name RR3. BRn 228. Clinton. IL 61727 Unit: 1 I & V Services PO # 491646 Address Repair Organization P.O. No., Job No.3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Code Class 3 Address 4. Identification of System: N/A 5(a) Applicable Construction Code Pipe: Component:

N/A Edition N/A Addenda N/A Code Case 1974 Edition Wint 76 Addenda 1774-1 Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI, 2004 Ed; No Add (c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V Posi Seal S/N 16749449 N/A Spare Valve 1990 Repaired Yes 7.

Description:

Perform Repairs as identified in I & V Repair Plan "CSD 3812592 Rev. 2".8. Tests Conducted:

Hydrostatic

[] Pneumatic 0 Nominal Operating Pressure El Other D1 Exempt El Pressure: psi Test Temp: 0 F ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Pressure Test will be performed upon Valve installation in the system.See NR-1 Report issued by I & V Services under PO 491646.CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this g e " conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp N /A Certificate of Authorization No. M I A Signed H )' Y-0 Q2 !r -Y Date 0-_.L- ,203 Owner U wner'%De~signfe, "Tide U/CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Ins ectors and the State of Province of Illinois and employed by Hartford Steam Boiler_of have inspected the components described in this Owner's Report during the period 1/ 14/1to 9/30/2013 , and state that to the best of my knowledge and belief, the Own r has performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furthermore,Aeithe, e Ir/spector nor his employer shall be liable in any manner for any personal injury or property av gc a Ics of any kind arising from or connected with this inspection.

1. 01. /-4..--,.

Commissions N" '1P19 J *i-\Date Otnahur , tE National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address Data Report No. RF-14-021 Date: 10/3/2013 Sheet 1 of 1 2. Plant: Clinton Power Station Name Address Unit: 1 NWS Technologies PO 456045 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable

3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: NA Code Class 1 5(a) Applicable Construction Code Pipe: Component:

N/A Edition N/A Addenda N/A Code Case 1974 Edition S76 Addenda NONE Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Add.(c)Section XI code Cases used NONE 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V DIKKERS 160789 SPARE SRV 1979 Replacement Yes I 7. Dscrptin:

WS Tchnloges eplced wo 2) ellvill Waher inthesprig pck sin NW 7.

Description:

NWS Technologies replaced two (2) Belleville Washers in the spring pack using NWS Traveller

1. 13-202 8. Tests Conducted:

Hydrostatic

'] Pneumatic 0 Nominal Operating Pressure ED Other E1 Exempt El Pressure: psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

NWS Technologies replaced two (2) Belleville Washers in the spring pack using NWS Traveller

1. 13-202.These two (2) Belleville Washers came from a different Clinton SRV S/N 160785.Pressure Test will be performed upon SRV installation in the system.CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this ,e Ft 1 to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp YQ A-Certificate of Authorization No. M-i I" Signed , -t Y Date IO --2 --. 20 I'Owneoj Owner' Dsigf Title /CERTIFICATE OF INSERVICE INSPECTION 1, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Ipsl ectors and the State of Province of Illinois and employed by Hartford Steam Boiler of -CTl have inspected the components described in this Owner's Report during the period i to 10/3/2013 , and state that to the best of my knowledge and belief, the Ovkieihas performed examinations and taken corrective measures described in this Owner's 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, conc *ng the, minations and corrective measures described in this Owner's Report.Furthermore nei tl'e espector nor his employer shall be liable in any manner for any personal injury or property dnmi or s of any kind arising from or connected wi in"/II I -Commissions J- I Orn.-' --kM Date inPecor S'ic nahirf, 20 3 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name RR3. Box 228. Clinton, IL 61727 Data Report No. RF-14-022 Date: 11/8/2013 Sheet 1 Unit: 1 1230598-02 of 1 Address 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: NRH01 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None!Authorization No: Not Applicable Expiration Date: Not Applicable Code Class 2 5(a) Applicable Construction Code Pipe: Component:

1974 Edition S74 Addenda N/A Code Case N/A Edition N/A Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Add.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped RD Clinton NRH01 N/A 1 E12D001A N/A Replacement Yes 7.

Description:

Fabricating an Orfice from a Plate.8. Tests Conducted:

Hydrostatic El Pneumatic El Nominal Operating Pressure Other El Exempt O Pressure: psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Pressure Test will be performed when installed.

Receiving Information:

Stainless Steel Plate: Cat ID -1153382; UTC # -2945440 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this R.c.c.e%4.(&

conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp AJ IA Certificate of Authorization No. N$, A ,Signed 9 k Q ý 6 -VCDate 11 , 20_L)Ownokr Ownejýýespnee, TitleU CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Irspp ors and the State of Province of Illinaois and employed by Hartford Steam Boiler_of -r/ I have inspected the components described in this Owner's Report during the period M/A-1 to 11/8/2013 , and state that to the best of my knowledge and belief, the O0nt has performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Further re, nier the Inspector nor his employer shall be liable in any manner for any personal injury or pror eora loss of any kind arising from or connegedwth this pn.o\J//4& /Commissions I Date Signmnarp , 20 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Data Report No. RF-14-023 Date: 11/8/2013 Sheet 1 of 1 Address Unit: 1 1230601-02 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: NotApplicable

3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: NRH06 Code Class 2 5(a) Applicable Construction Code Pipe: Component:

1974 Edition 574 Addenda N/A Code Case N/A Edition N/A Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Add.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASMEI Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped RD Clinton N/A N/A 1E12D001B 2013 Replacement Yes 7.

Description:

Fabrcating an Orifice.8. Tests Conducted:

Hydrostatic El Pneumatic D Other II Exempt W Pr Nominal Operating Pressure El essure: psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Pressure Test will be performed when installed.

Receiving Information:

Stainless Steel Plate: Cat ID -1153382; UTC # -2945440 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this .&0 1L4,t-4w,^h%3onform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp a) A Certificate of Authorization No. NJ) A Signed R I ;, 1 Q., 6 ,% Date i- 201_Ow oeror Owns; 9Def ignee, Title (U CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel In pectors and the State of Province of Illinois and employed by Hartford Steam Boiler of G- r have inspected the components described in this Owner's Report during the period G/ 1J. 0 0 to 11/8/2013 , and state that to the best of my knowledge and belief, the Ow r has performed examinations and taken corrective measures described in this Owner's 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 thn examinations and corrective measures described in this Owner's Report.Furtherie, neithihe Inspector nor his employer shall be liable in any manner for any personal injury or propetyirnae a loss of any kind arising from or connectes with this inspection.,___________________C Commissions MPN, 4L /Date In'pprtor' Signath re , 20 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon CorDoration Name 96S Chesterbrook Blvd.. Wayne. PA 19(0R7 Data Report No. RF-14-024 Date: 11/13/2013 Address Sheet 1 of 1 2. Plant: Clinton Power Station Name RR3. Box 228. Clinton. IL 61727 Address Unit: 1 1181521-01 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable

3. Work Performed by: :Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: NGE02 Code Class 1 5(a) Applicable Construction Code Pipe: 1974 Edition 574 Addenda N/A Code Case Component:

1974 Edition S76 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Add.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V DIKKERS 160540 45 1B21FO41A 1978 Replaced Yes 7.

Description:

Replaced SRV for testing. Also replaced 7 outlet studs, 12 inlet studs, and 2 inlet hydranuts.

8. Tests Conducted:

Hydrostatic El Pneumatic E] Nominal Operating Pressure Other 0 Exempt 0 Pressure:

psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

SRV: Cat ID -1100041; UTC # -2567649 Inlet Studs (12 each) -Cat ID -1145887; UTC # -2904422 Inlet Hydranuts (2 each) -Cat ID -1406870; UTC # -2851020 (1 each) and 2884270 (1 each)Outlet Studs (7 each) -Cat ID -1145888; UTC # -2800087 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this Rtp W..%, conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp M I A Certificate of Authorization No. N) A Signed MI. ý 3ý % it ft IVDate 1\-4 .- 201-1 Owr<)r ovaw.;-e Disignee, Title U CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel I spectors and the State of Province of Illinois and employed by Hartford Steam Boiler of CT have inspected the components described in this Owner's Report during the period lbi 0 to 11/15/2013 , and state that to the best of my knowledge and belief, the Ow er has performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furtherr neiter the Inspector nor his employer shall be liable in any manner for any personal injury or c or a loss of any kind arising from or connected withthis inspection.[ -! Commissions/ja 9% Aj Ij t1 /l Date Tn.petnr-Si*gnatllrp , 20 5 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name Data Report No. RF-14-025 Date: 11/13/2013 Sheet 1 of 1 Unit: 1 1347638-01 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: NGE02 Code Class 1 5(a) Applicable Construction Code Pipe: 1974 Edition S75 Addenda N/A Code Case Component:

1974 Edition S76 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 ED; No Add (c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V DIKKERS 160911 130 11B21F047B 1979 Replaced Yes 7.

Description:

Replaced SRV for testing. Also replaced 9 outlet studs and 12 inlet studs.8. Tests Conducted:

Hydrostatic 0 Pneumatic El Nominal Operating Pressure 9"1 Other Fi Exempt ED Pressure:

psi Test Temp: OF ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

SRV: Cat ID -1100042; UTC # -2567641 Inlet Studs (12 each): Cat ID -1145887; UTC # -2904422 Outlet Studs (9 each): Cat ID -1145888; UTC # -2800087 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this Rtp tV.3r conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp )M I A Certificate of Authorization No. Y*- A Signed _ x V- Date It .- 11 201_J Owrierj Owner'-e-resilnee, 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 Hartford Steam Boiler_of I I have inspected the components described in this Owner's Report during the period II (1 4. /.<., I to __11/15/2013 , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furtherrproe, neither the Inspector nor his employer shall be liable in any manner for any personal injury or prop or a loss of any kind arising from or connected with this inspection.

IX,.74__________________Commissions NI~l A :L -. TL J4s /Voq-l40&(Date Tnsppctnr", Signahire 2013 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name RR3. Box 228. Clinton. IL 61727 Data Report No. RF-14-026 Date: 11/14/2013 Sheet 1 Unit: 1 1348068-01 of 1 Address 3. Work Performed by: clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NGE02 Code Class 1 5(a) Applicable Construction Code Pipe: 1974 Edition S75 Addenda N/A Code Case Component:

1974 Edition S76 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 ED; No AD (c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V DIKKERS 160789 61 1 B21 F041D 1978 Replaced Yes 7.

Description:

Replaced SRV for testing. Also replaced 3 outlet studs and 12 inlet studs.8. Tests Conducted:

Hydrostatic El " Pneumatic El Nominal Operating Pressure Se Other D Exempt II Pressure:

psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

SRV: Cat ID -1100041; UTC # -2558176 Inlet Studs (12 each): Cat ID -1145887; UTC # -2904422 Outlet Studs (3 each): Cat ID -1145888; UTC # -2800087 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this As p~vtmtv- conform to the rules of the ASME Code,Section XI. repai? or replacement Type Code Symbol Stamp WJ)A Certificate of Authorization No. Y ) A Signed VA I Z nDate I)- _, 202.1Owner-'.e.si~nee, Titde 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 Hartford Steam Boiler_of _CT have inspected the components described in this Owner's Report during the period to 11/15/2013 , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furthermore, neither the Inspector nor his employer shall be liable in any manner for any personal injury or propQy,.imac or akloss of any kind arising from or conne,ýteSI with this inspection

_______ ________,_

Commissions Nl f=o /\,IK9 _L- \_, Date rnqpectnr', Signijrp , 20 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Coweoration Name 965 Chesterbrook Blvd., Wayne, PA 19087 Data Report No. RF-14-027 Date: 11/14/2013 Address Sheet 1 of 1 2. Plant: Clinton Power Station Name.... R t 22... C....... TI .. ....Address Unit: 1 1181522-01 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable

3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: NGE02 Code Class 1 5(a) Applicable Construction Code Pipe: Component:

1974 Edition S74 Addenda N/A Code Case 1974 Edition S76 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 ED; No AD (c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V DIKKERS 160917 136 1 B21F051 C 1979 Replacement Yes 7.

Description:

Replaced SRV for testing. Also replaced 11 outlet studs and 12 inlet studs.8. Tests Conducted:

Hydrostatic El Pneumatic El Nominal Operating Pressure 0f Other El Exempt El Pressure:

psi Test Temp: OF ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

SRV: Cat ID -1100043; UTC # -2567660 Inlet Studs (12 each): Cat ID -1145887; UTC # -2904422 Outlet Studs (11 each): Cat ID -1145888; UTC # -2800087 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this __-___________

conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp MI2A Certificate of Authorization No. ý4 1A Signed yl, %, f ...V,, Date %,%+/ 1 , 20_1..Own Urr Title U CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Irwseors and the State of Province of Illinois and employed by Hartford Steam Boiler_of C-T/ I have inspected the components described in this Owner's Report during the period iI / to 11/15/2013 , and state that to the best of my knowledge and belief, the 04neO has performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furthermore nither t I spector nor his employer shall be liable in any manner for any personal injury or property lar4 e oa) ss f any kind arising from or conneJed with Jhisknspe-tion.

Dt n. 'i r Commiss NionsaJl oard State, PoComrme Date P~r, ______p 0t National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corooration Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address Data Report No. RF-14-028 Date: 11/19/2013 Sheet 1 of I1 Unit: 1 1527179 -02. 03. 04. 05. & 06 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable

..Address 4. Identification of System: NGE02 Code Class 1 5(a) Applicable Construction Code Pipe: 1974 Edition -S74 Addenda N/A Code Case Component:

.W77 Addenda, See Note I Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements:

ASME Sec XI 2004 Ed; No Add.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped PP ILLINOIS POWER PIPING SYSTEM N/A NGE02 1986 Replacement Yes 7.

Description:

Replaced Five (5) Hydraulic Snubbers.8. Tests Conducted:

Hydrostatic El Pneumatic El Nominal Operating Pressure E]Other El Exempt VJ Pressure:

psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Replaced Five (5) Hydraulic Snubbers:

1B21G006S102B, 104A, 105C, 107C, & 108C.Receiving Information:

102B: Cat ID -1152648; UTC # -2727263 104A: Cat ID -1153941; UTC # -2727066 105C: Cat ID -1152648; UTC # -2727264 107C: Cat ID -1153941; UTC # -2727067 108C: Cat ID -1153939; UTC # -2727059 Note 1: Code Cases utilized -1644-8; 1682-1; 1706; and N-242 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this R 9-Va conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp N11A Certificate of Authorization No. 14) A Signed R so; % 0% &Etn4 tvo ne eDate I)- lq- ,2013 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Ips!ectors and the State of Province of Illinois and employed by Hartford Steam Boiler of -/C17 have inspected the components described in this Owner's Report during the period F to 11/19/2013 , and state that to the best of my knowledge and belief, the Okner has performed examinations and taken corrective measures described in this Owner's 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, conc ning the examinations and corrective measures described in this Owners Report.Furtherenor t r tro Inspector nor his employer shall be liable in any manner for any personal injury or property a or loss of any kind arising from or wth his inspection._.

-_________

-_-,_________Commissions

--- " 1Th L t...- "1/Date n3nsprtnes sionahirp , 20 1 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address Data Report No. RF-14-029 Date: 11/19/2013 Sheet 1 of 1 Unit: 1 1527179 -07 & 08 Repair Organization P.O. No., Job No.3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NGE01 Code Class 1 5(a) Applicable Construction Code Pipe: 1974 Edition Summ 74 Addenda N/A Code Case Component:

1977 Edition Wint 77 Addenda See Note 1 Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Add.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped PP ILLINOIS POWER PIPING SYSTEM NA NGE01 1986 Replacement Yes 7.

Description:

Replaced two (2) Hydraulic Snubbers.8. Tests Conducted:

Hydrostatic

[] Pneumatic El Nominal Operating Pressure [, Other II Exempt V Pressure:

psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Replaced two (2) Hydraulic Snubbers:

1B33G006S370A

& 370B.Receiving Information:

370A: Cat ID -1152649; UTC # -2727265 370B: Cat ID -1153941; UTC # -2727065 Note 1: Code Cases utilized -1644-8; 1682-1; 1706; and N-242 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and thisRep110 ,' conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp N' J A Certificate of Authorization No. NI A Signed "I' Y " .Date I -2.6&- ,2013 Own&r Ownefgmnee, -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 Hartford Steam Boiler of C' I,, have inspected the components described in this Owner's Report during the period;0. ot to 11/26/2013 , and state that to the best of my knowledge and belief, the O4nerthas performed examinations and taken corrective measures described in this Owner's 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, concernin the examinations and corrective measures described in this Owner's Report.Furtherm r i er e Inspector nor his employer shall be liable in any manner for any personal injury or property cl~bage o loss of any kind arising from or connected wi insloci,_____________________

Commissions 1(1Y,\ -i ,-.Date 1nc.pedotr'q -ianah rp , 20 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Data Report No. RF-14-030 Date: 11/19/2013 Sheet 1 of 1 Unit: 1 1540852-02

& 1527176-05 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NRI01 Code Class 1 5(a) Applicable Construction Code Pipe: Component:

1974Edition Summ 74 Addenda N/A Code Case 1974Edition Summ 74 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Add.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped PP ILLINOIS POWER PIPING SYSTEM N/A NRI01 1986 Replacement Yes 7.

Description:

Replaced two (2) Whip Restraints, 1RIO1013W

& 1RIO1015W.

8. Tests Conducted:

Hydrostatic

[] Pneumatic LI Nominal Operating Pressure El Other El Exempt V1 Pressure:

psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Replaced two (2) Whip Restraints:

1RIO1013W

& 1RIO1015W Receiving Information:

1RIO1013W:

Cat ID -1424953; UTC # -2951139 1RIO1015W:

Cat ID -1424953; UTC # -2951138 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this Rgplic.1t t conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp b).JA Certificate of Authorization No. N) A Signed iA;,-

Date A-1 l -1, 20_L3 Owne(J Owneu.e-Be*nee, "lile (CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel In pectors and the State of Province of Illinois and employed by Hartford Steam Boiler of _LCT / have inspected the components described in this Owner's Report during the period 107I --% , "o T0 to 11/20/2013 , and state that to the best of my knowledge and belief, the Ower has performed examinations and taken corrective measures described in this Owner's 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, c: cerning toe examinations and corrective measures described in this Owner's Report.Further ore n t e he Inspector nor his employer shall be liable in any manner for any personal injury or propet ge a loss of any kind arising from or connected with this inspetio¶$

ýqY Commissions W U9~ :LJ i-,-~ n-Dae Tn pectnr'; Sagnaturp 2f3 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd.. Wayne. PA 19087 Data Report No. RF-14-031 Date: 11/19/2013 Address Sheet 1 of 1 2. Plant: Clinton Power Station Name RR3. Box 228, Clinton. IL 61727 Unit: 1 1527174-07.10.11

& 1527172-14 Address Repair Organization P.O. No., Job No.3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NMS01 Code Class. 3 5(a) Applicable Construction Code Pipe: Component:

1974 Edition S74 Addenda N/A Code Case 1974 Edition S74 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Aec XI 2004 Ed; No Add (c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped PP Illinois Power PIPING SYSTEM N/A NMS01 1986 Replaced Yes 7.

Description:

Replaced Four (4) Mechanical Snubbers:

1M5210085, 1MS250065, 1M5250095, and 7.

Description:

Replaced Four (4) Mechanical Snubbers:

1MS21008S, 1MS25006S, 1MS25009S, and 1MS33006S.

8. Tests Conducted:

Hydrostatic El Pneumatic E] Nominal Operating Pressure ED Other El Exempt W Pressure: psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Replaced Four (4) Mechanical Snubbers:

1MS21008S, 1MS25006S, 1MS25009S, and 1MS33006S.

Receiving Information:

1MS21008S:

Cat ID -1151222; UTC # -2113008 1MS25006S:

Cat ID -1151222; UTC # -2113019 1MS25009S:

Cat ID -1151222; UTC # -2113048 1MS33006S:

Cat ID -1151215; UTC # -2789875 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this Rfe. UtA 4VY '0tW conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp WIA Certificate of Authorization No. K)A Signed 214t.?

Date 11L)I _. 20AJ_Ow(Jrr Owners-vesinee, Tie0 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel and the State of Province of Illinois and employed by Hartford Steam Boiler of __ have inspected the components described in this Owner's Report during the period L U 0-3 to 11/21/2013 , and state that to the best of my knowledge and belief, the Owher has performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furthermore'her Inspector nor his employer shall be liable in any manner for any personal injury or property d or ss of any kind arising from or conn c;ed with this i ion.\-JI1 Commisins

/09 II, Ao Date ___S_ gnatre 20 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd.. Wayne, PA 19087 Data Report No. RF-14-032 Date: 11/25/2013 Address Sheet 1 of 1 2. Plant: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address Unit: 1 1633163 -01 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable

3. Work Performed by: Clinton Power Station Name RR3, Box 228,Clinton, IL 61727 Address 4. Identification of System: NSX06 Code Class 3 5(a) Appllicable ConstrUction Code Pipe: 1974 Edition Su 74 Addenda N/A Code Case Component:

1974 Edition Wi 76 Addenda 1774-1 Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Add.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V Fisher Controls 19041577 N/A 1 SX354A 2009 Replacement Yes 7.

Description:

Installed 8" Tee, A Flange, and 8" Valve per EC 393240.8. Tests Conducted:

Hydrostatic El Pneumatic

[] Nominal Operating Pressure Other El Exempt II Pressure:

psi Test Temp: OF ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Tee: Cat ID -1466005; UTC # -2950181 Flange: Cat ID -24841; UTC # -2889577 Studs: Cat ID -1396489; UTC # -2901025 Studs: Cat ID -1396491; UTC # -2949622 Nuts: Cat ID -1147289; UTC # -2100397 Valve: Cat ID -1432737; UTC # -2848649 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this IF'i.oI r-. 'Alt'onform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp N/A Certificate of Authorization No. n IA Signed AA% '0 Date t -I '%g 20t____t Ow~eor O~wner's fesignee, ltle CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel _nspectors and the State of Province of Illinois and employed by HSB Global Standard of CTI I have inspected the components described in this Owner's Report during the period PL%\I 5 to 1/15/2014 , and state that to the best of my knowledge and belief, the Owrer flas performed examinations and taken corrective measures described in this Owner's 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 oroncern'j e examinations and corrective measures described in this Owner's Report.Furt nithl he Inspector nor his employer shall be liable in any manner for any personal injury or prke rnnlm ag a los of any kind arising from or coq .his insection___ -__________________-_______________

Commissions N ) I- &T4.3 7,1.0 Date Tn 6'q 96a~natt ire ,20 LL...National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address Data Report No. RF-14-033 Date: 11/25/2013 Sheet 1 of 1 2. Plant: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address Unit: 1 1527172-13

& 1527174-08 Repair Organization P.O. No., Job No.3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NMS05 Code Class 3 5(a) Applicable Construction Code Pipe: Component:

1974 Edition Summ 74 Addenda N/A Code Case 1974 Edition Summ 74 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Add.(c) Section )(I code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped PP ILLINOIS POWER PIPING SYSTEM NA NMS05 1986 Replacement Yes 7.

Description:

Replaced two (2) Mechanical Snubbers, 1MS22006 & 1MS30011S.

8. Tests Conducted:

Hydrostatic 0 Pneumatic E] Nominal Operating Pressure LI Other El Exempt VI Pressure:

psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 6 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Replaced two (2) Mechanical Snubbers, 1MS22006 & 1MS300115.

Receiving Information:

1MS22006S:

This snubber came from its previous location 1MS07042S 1MS30011S:

Cat ID -1151215; UTC # -2108126 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this -_pl 0% CAe WVtAiconform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp MIA Certificate of Authorization No. k4J A Signed ; st Date %I -L- , 20jL OwQ~r Owneosrre~ignee, Title 'Daet- , -CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Irspectors and the State of Province of Illinois and employed by Hartford Steam Boiler_of __1CT I have inspected the components described in this Owner's Report during the period to OF -to 11/25/2013 , and state that to the best of my knowledge and belief, the Owhed has performed examinations and taken corrective measures described in this Owner's 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 tpe examinations and corrective measures described in this Owner's Report.Furth or , nei Lthe nspector nor his employer shall be liable in any manner for any personal injury or pr geam r a ss of any kind arising from or conne ed it is inspection." 0 I" Commissions t(y .1. j.L Date , 20-B- National Board, State, Province, and Endorsements 0

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address Data Report No. RF-14-034 Date: 11/27/2013 Sheet 1 of 1 2. Plant: Clinton Power Station Name RR3. Box 228. Clinton. IL 61727 Unit: 1 1527174 -02 S. .Address 3. Work Performed by: Clinton Power Station Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: NFW02 Code Class 1 5(a) Applicable Construction Code Pipe: Component:

1974 Edition 574 Addenda N/A Code Case 1974 Edition S74 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec X) 2004 Ed; No Add.(c) Section )(I code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped PP ILLINOIS POWER PIPING SYSTEM NA NFW02 1986 Replacement Yes 7.

Description:

Replaced a Snubber, 1FW02004S, to facilitate Testing.8. Tests Conducted:

Hydrostatic E] Pneumatic El Nominal Operating Pressure ZI Other El Exempt 66 Pressure: psi Test Temp: 0 F ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Replaced a Snubber, 1FW02004S, to facilitate Testing.Receiving Information:

Cat ID -1151222; UTC # -2112955 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this R e*% conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp I ) A Certificate of Authorization No. w IA Signed K % at=? g VDate ti- 2-1-, 203_O w nk )o r O w n e r's e i n , T týCERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel I spectors and the State of Province of Illinois and employed by Hartford Steam Boiler_of CT have inspected the components described in this Owner's Report during the period 1Z0 j ut to 11/27/2013 , and state that to the best of my knowledge and belief, the 6wner has performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furthermore n ith he Inspector nor his employer shall be liable in any manner for any personal injury or c ~e a loss of any kind arising from or connected w'th this inspection.

-*lt loss Commissions inspA, tix'._ _ _ _ _ _ _ _ _ _ Vo~Date tnr[' Signature , 20 Nror National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd.. Wayne. PA 190R7 Data Report No. RF-14-035 Date: 11/27/2013 Address 2. Plant: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Sheet 1 Unit: 1 1527172- 11 of 1 Address 3. Work Performed by: Clinton Power Station Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not App!icable Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: NMS06 Code Class 1 5(a) Applicable Construction Code Pipe: Component:

1974 Edition S74 Addenda N/A Code Case 1974 Edition S74 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Add.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped PP ILLINOIS POWER CO PIPING SYSTEM NA NMS06 1986 Replacement Yes 7.

Description:

Replaced a Snubber, 1MS05024S, to facilitate testing.8. Tests Conducted:

Hydrostatic D Pneumatic El Nominal Operating Pressure E]Other 1l Exempt Vl Pressure:

psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 0 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Replaced a Snubber, 1MS05024S, to facilitate testing. New S/N is 17718.This snubber came from its previous location 1MS05021S.

CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this &,pl1 to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp hl1 A Certificate of Authorization No. hi I A Signed M%,;!, Q ,-. Ev a*-VDate II -2.a 2013_oeor OnrsDfsgne, Til 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 Tllinois and employed by Hartford Steam Boiler_of CT have inspected the components described in this Owner's Report during the period 1o p6 I to 11/27/2013 , and state that to the best of my knowledge and belief, the wher has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI. 0 By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concerni the examinations and corrective measures described in this Owner's Report.Furth ei er the Inspector nor his employer shall be liable in any manner for any personal injury or pro e am e ora loss of any kind arising from or conn d hhisinspeon.

.N 0\K41%Z4,%, 13 Date ýIspprtor'q SiMahire 20 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name RR3. Box 228. Clinton. IL 61727 Data Report No. RF-14-036 Date: 11/27/2013 Sheet 1 of 1.;. ý; ...' .......Address Unit: 1 1527172 -31 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorizati6n No: Not Applicable Expiration Date: Not Applicable

3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: NRT03 Code Class 3 5(a) Applicable Construction Code Pipe: Component:

1974 Edition S74 Addenda N/A Code Case 1974 Edition S74 Addenda N/A Code Case (b) Applicable Edition of Section )I Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Add.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped PP ILLINOIS POWER PIPING SYSTEM NA NRT03 1986 Replacement Yes 7.

Description:

Replaced a Snubber, 1RT05003S, to facilitate testing.8. Tests Conducted:

Hydrostatic

[] Pneumatic El Nominal Operating Pressure Dl Other El Exempt R] Pressure: psi Test Temp:

I ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Replaced a Snubber, 1RT05003S, to facilitate testing.Receiving Information:

Cat ID -1151217; UTC # -2800048 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this V 1lA f--*"t conform to the rules of the ASME Code,Section XI repair or replacement Type Code Symbol Stamp Pi I A Certificate of Authorization No. P4 1 A Signed I Nra.M, .-_ Date % -20j__.-Owner( Ownqe.%Destnee, -Title 0 CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Iqspqctors and the State of Province of Illinois and employed by Hartford Steam Boiler of CT/./ have inspected the components described in this Owner's Report during the periodto 11/27/2013 , and state that to the best of my knowledge and belief, the Owner has performed examinations and taken corrective measures described in this Owner's 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, conc#(ning the examinations and corrective measures described in this Owner's Report.Furthermore, n it r h nspector nor his employer shall be liable in any manner for any personal injury or property a 'r s of any kind arising from or conneted wittl this in~spectionI

,_-\Date____ _rhJ_-_ _"__,2"'-

NaCommissions BordSt,_roicea__ndrsmet Date Tricpectar'c S*Gnahire 20 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon CorDoration Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address Data Report No. RF-14-037 Date: 11/27/2013 Sheet 1 of 1 2. Plant: Clinton Power Station Name RR3. Box 228. Clinton. IL 61727 Unit: 1 1527172 -33. & -35 Address 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NRTOS Code Class 3 5(a) Applicable Construction Code Pipe: 1974 Edition S74 Addenda N/A Code Case Component:

1974 Edition S74 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Add.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped PP ILLINOIS POWER PIPING SYSTEM NA NRT05 1986 Replacement Yes 7.

Description:

Replaced two (2) snubbers, 1RT06044S

& 1RT07014S, to facilitate testing.8. Tests Conducted:

Hydrostatic D Pneumatic El Nominal Operating Pressure El Other El Exempt VJ Pressure:

psi Test Temp: OF ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Replaced two (2) snubbers, 1RT06044S

& 1RT07014S, to facilitate testing.Receiving Information:

1RT06044S:

Cat ID -1151214; UTC # -2800042 1RT07014S:

Cat ID -1151214; UTC # -2851917 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this Rg. ?p A C.tyv"iconform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp IW)Certificate of Authorization No. 4) A Signed M _ &% BiN.M F_,%1%..,,vv Date )M -.1 20_L_Owneo Owner'aJ)wnee, Titde-- 0 -CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Ir spectors and the State of Province of Illinois and employed by Hartford Steam Boiler_of CT .have inspected the components described in this Owner's Report during the period f' °<A i/ to 12/20/2013 , and state that to the best of my knowledge and belief, the bwn !r has performed examinations and taken corrective measures described in this Owner's 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, concernipthe examinations and corrective measures described in this Owner's Report.Furthernr th the Inspector nor his employer shall be liable in any manner for any personal injury or proprr a r a loss of any kind arising from or connected.i h this inspection.

\I4 W _ Commissions NN M AI : I -I Date T-In~p'pctor'(-eq gpi~t irp 20 ~National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Data Report No. RF-14-038 Date: 11/27/2013 Sheet 1 Unit: 1 1527169 -25 of 1 Address 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable

-' -ý Address ....... " 4. Identification of System: NRH01 Code Class 2 5(a) Applicable Construction Code Pipe: Component:

1974 Edition S74 Addenda N/A Code Case 1974 Edition S74 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec )(I 2004 Ed; No Add.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped PP ILLINOIS POWER PIPING SYSTEM N/A NRH01 1985 Replacement Yes 7.

Description:

Replaced one Snubber, 1RH17002S, to facilitate testing.8. Tests Conducted:

Hydrostatic El Pneumatic 0 Nominal Operating Pressure El Other IZ Exempt V Pressure:

psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 4 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Replaced one Snubber, 1RH17002S, to facilitate testing.Receiving Information:

Cat ID -1151218; UTC # -2790030 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this Re.1q ct m.^tconform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp JA Certificate of Authorization No. W ) A Signed 9W;!JW* § 9. V vDate Al "1 Owner@ Title UJ CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel s plctors and the State of Province of Illinois and employed by Hartford Steam Boiler of C-l have inspected the components described in this Owner's Report during the period Ito 11/272013 , and state that to the best of my knowledge and belief, the Oviner ias performed examinations and taken corrective measures described in this Owner's 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, co ncernin e examinations and corrective measures described in this Owner's Report.Furthermtre,X her e Inspector nor his employer shall be liable in any manner for any personal injury or d,4ie loss of any kind arising from or conneced wth is inspeion.

, (/UL/ V Commissions JM 1P- I F A ti-I-:I'-Date Tnpecnr'q Signahire , 20 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name RR3. Box 228, Clinton, IL 61727.Address 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Data Report No. RF-14-039 Date: 11/27/2013 Sheet 1 Unit: 1 1527169 -04 of 1 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NIS01 Code Class 2 5(a) Applicable Construction Code Pipe: Component:

1974 Edition S74 Addenda N/A Code Case 74 Edition S74 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Add.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped PP Illinois Power PIPING SYSTEM N/A NIS01 86 Replacement Yes 7.

Description:

Replaced one snubber, 1IS01022S, to facilitate testing.8. Tests Conducted:

Hydrostatic

[] Pneumatic 0 Nominal Operating Pressure E]Other ED Exempt 91 Pressure:

psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Replaced one snubber, 1IS01022S, to facilitate testing. New S/N 29274.This snubber came from its previous location 1RB24575S.

CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and

.WOL. fconform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp M 1,A Certificate of Authorization No. P) IA Signed 'Ow ""etp. 4 yDate ,-n , 20 _.CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel and the State of Province of Illinois and employed by Hartford Steam Boiler of CT I have inspected the components described in this Owner's Report during the period 1 O qT-atl to 11/27/2013 , and state that to the best of my knowledge and belief, the Oikner fias performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section X).By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied, concernin h examinations and corrective measures described in this Owner's Report.Further , 1 er e Inspector nor his employer shall be liable in any manner for any personal injury or prope, ag a loss of any kind arising from or conn W i insle$Ln__ /_!______-0-----

Commissions 17?-I Date 2T01 .Signahure.

National Board, State, Province, and Endorsements 0

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Data Report No. RF-14-040 Date: 12/4/2013 Address Sheet 1 of 1 2. Plant: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address Unit: 1 1600600-01, 1527169-09, 10 Repair Organization P.O. No., Job No.3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NMS06 Code Class 3 5(a) Applicable Construction Code Pipe: Component:

1974 Edition S74 Addenda N/A Code Case 1974 Edition S74 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Add.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped PP ILLINOIS POWER CO PIPING SYSTEM NA NMS06 1986 Replacement Yes 7.

Description:

Removed 2 Snubbers 1MS11106S

& 1MS11108S and Spring Hanger 1MS11107V per EC 390995. See Remarks.8. Tests Conducted:

Hydrostatic 11 Pneumatic El Nominal Operating Pressure El Other El Exempt 91 Pressure: psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Removed Snubber 1MS11106S and Spring Hanger 1MS11107V (with Pipe Clamp) on Line 1MS80BA-2". Also, replaced Snubber 1MS11108S with a Rigid Strut on Line 1MS80BA-2".

Receiving Information:

Rigid Strut or Sway Strut: Cat ID -1463061; UTC # -2937498.CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this P-pOII C1.tWt1N" conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp M(A Certificate of Authorization No. N I A Signed wyA c r-X L -.. t 4 Date 1.- 4-, 201Aj silnee, "1Tide U CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Ipspqctors and the State of Province of Illinois and employed by Hartford Steam Boiler_of CT 11. have inspected the components described in this Owner's Report during the period J j to 12/20/2013 , and state that to the best of my knowledge and belief, the Ovner has performed examinations and taken corrective measures described in this Owner's 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 examinations and corrective measures described in this Owner's Report.

Inspector nor his employer shall be liable in any manner for any personal injury or properdare or ss of any kind arising from or copnecdith this in!ectio._[.I/ Commissions Wd Wc'o I , -i Date Tncpnrtar', qignalirp , 20 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd.. Wayne. PA 19087 Data Report No. RF-14-041 Date: 12/10/2013 Address Sheet I Unit: 1 of 1 2. Plant: Clinton Power Station Name RR3. Box 228. Clinton. IL 61727 1515897 Address 3. Work Performed by: Clinton Power Station Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: NGE01 Code Class 1 5(a) Applicable Construction Code Pipe: Component:

N/A Edition N/A Addenda N/A Code Case 71 Edition S73 Addenda -e Remarks Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Add.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped T C8&I Various Various 1B13D008 1978 Replacement Yes 7.

Description:

Replaced seventeen (17) CRDMs during C1R14.8. Tests Conducted:

Hydrostatic E) Pneumatic 0 Nominal Operating Pressure Other El Exempt D- Pressure: psi Test Temp: 0 F ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Replaced seventeen (17) Control Rod Drive Mechanisms (CRDMs) during C1R14.Code Cases for Construction Code -1141, 1332, 1361-2, 1557-1, N-207.See Continuation Sheet for material procurement data.CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this Ri p w 4,-V conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp N hA Certificate of Authorization No. N IA Signed CA t 8 Q r , Date 1. _,20_1_3 ova or Own.gaDifsignee, Tidle (I CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Insp ors and the State of Province of Illinois and employed by Hartford Steam Boiler of C1 ? have inspected the components described in this Owner's Report during the period i /-t 3.0Q- to 12/10/2013 , and state that to the best of my knowledge and belief, the 0Oner has performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furthermoreithe eInspector nor his employer shall be liable in any manner for any personal injury or proper Xdaleor s of any kind arising from or connectd with this inspection.

I , I" -.UI //

0 t7IJ r 1 Ap) %: L .A ,L ' I I Date r im 20, National Board, State, Province, and Endorsements NIS-2 RF-14-041 (cont.) Page 3 of 3 Work Order 1515897 Tasks 03, 04, 08, 09, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, and 32.CRDM Replacement Task/Location CRDM Replacement Serial Number & UTC;Associated Bolting Cat ID & UTC Task 03 / 52-21 A3688 & UTC 2744557;Cat ID-1147766

& UTC 2847555 Task 04 / 16-45 A3148 & UTC 2744531;Cat ID-1147766

& UTC 2847555 Task 08 / 40-45 9370 & UTC 2744461;Cat ID-1147766

& UTC 2847555 Task 09 / 48-41 A2440 & UTC 2744468;Cat ID-1147766

& UTC 2847555 Task 10 / 08-37 8195 & UTC 2744608;Cat ID-1147766

& UTC 2847555 Task 11 / 32-37 A2686 & UTC 2744568;Cat ID-1147766

& UTC 2847555 (1 each)2836720 (7 each)Task 12 / 28-33 8831 & UTC 2744559;Cat ID-1147766

& UTC 2847555 Task 13 / 12-29 A3415 & UTC 2744578;Cat ID-1147766

& UTC 2847555 (5 each)2951053 (3 each)Task 14 / 16-29 A3222 & UTC 2744523;Cat ID-1147766

& UTC 2951053 Task 15 / 24-21 A2519 & UTC 2744554;Cat ID-1147766

& UTC 2951053 Task 16 / 16-17 A2634 & UTC 2638524;Cat ID-1147766

& UTC 2951053 Task 18/48-17 A2466 & UTC 2744481;Cat ID-1147766

& UTC 2951053 Task 19 / 28-13 A3147 & UTC 2744490;Cat ID-1147766

& UTC 2951053 Task 20 / 20-09 A2504 & UTC 2638526;Cat ID-1147766

& UTC 2951053 Task 21 / 44-09 A2539 & UTC 2558548;Cat ID-1147766

& UTC 2951053 Task 22 / 36-05 A3412 & UTC 2558541;Cat ID-1147766

& UTC 2847555 Task 32 / 32-09 A3114 & UTC 2744505;1 Cat ID-1147766

& UTC 2847555 ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address Data Report No. RF-14-042 Date: 12/12/2013 Sheet 1 of 1 2. Plant: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address Unit: 1 1525390-01 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable

3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: NSC01 Code Class 1 5(a) Applicable Construction Code Pipe: 1974 Edition S74 Addenda N/A Code Case Component:

1977 Edition S77 Addenda NONE Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Add.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V CONAX 69 N/A 1C41FO04A 1976 Replacement Yes CORPORATION 7.

Description:

Replaced Firing Chamberin the Sqib Valve 1C41FO04A.

8. Tests Conducted:

Hydrostatic El Pneumatic 11 Nominal Operating Pressure Other El Exempt ED Pressure:

psi Test Temp: OF ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Cat ID -1148279; UTC # -2945007 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this p, o t'r conform to the rules of the ASME Code, Section )I. repair or replacement Type Code Symbol Stamp Certificate of Authorization No. N ).A Signed A,*v .&. Date 17. ,2015 OwneV( Owner's Defignee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Ins ectors and the State of Province of Illinois and employed by Hartford Steam Boiler_of --CT have inspected the components described in this Owner's Report during the period II X 01o- to 12/12/2013 and state that to the best of my knowledge and belief, the Owne has performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furthermo , Feit the Inspector nor his employer shall be liable in any manner for any personal injury or proper d 1l'ge 1 c3r a loss of any kind arising from or conneced wit is inspection, ,, Commissions NIJ .) ti3 " L" 1I Dat De--cne- , 2v Date Ing.pectnir' , 20 1 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 rhesterhrook Blvd.. Wavne. PA 190lR7 Data Report No. RF-14-043 Date: 1/7/2014 965 ...................

r--A e PA 190e8 Address Sheet 1 of 1 2. Plant: Clinton Power Station Name RR3. Box 228. Clinton. IL 61727 Unit: 1 1526113 -02/09--;" :- ., Address 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable

a. a: e Nt*Expiration Date: Not Appli~cable Address 4. Identification of System: NGE01 Code Class 1 5(a) Applicable Construction Code Pipe: Component:

1974 Edition'S74 Addenda N/A Code Case 1974 Edition S76 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Ad.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Nameof Nameof Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped PP ILLINOIS POWER PIPING SYSTEM NA NGE01 1986 Replacement Yes 7.

Description:

Replaced a nut on RCIC flange to the RPV head vent flange.8. Tests Conducted:

Hydrostatic 11 Pneumatic El Nominal Operating Pressure Se Other D- Exempt El Pressure:

psi Test Temp: OF ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Replaced a nut on RCIC flange to the RPV head vent flange.Receiving Information:

Cat ID -1394991; UTC # -2726229 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this Xy .k1.,,t%4 onform to the rules of the ASME Code, Section )I. repair or replacement Type Code Symbol Stamp H,)1 A Certificate of Authorization No. 9 1 A Signed R ;, -t ý,Me v%,, t Date I -201!t Ovjeror Owner'.s Des~gnee, "Title U CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel In pect rs and the State of Province of Illinois and employed by Hartford Steam Boiler_of CT I r have inspected the components described in this Owner's Report during the period I 0 la ' to 1/7/2014 , and state that to the best of my knowledge and belief, the Ownbr hs performed examinations and taken corrective measures described in this Owner's 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, concerninthe ations and corrective measures described in this Owner's Report.Furtherme, n t Inn or nor his employer shall be liable in any manner for any personal injury or prope da e or a lo any kind arising from or connected with this inspectiop,.

11-aA Commissions NO0%C\ ' ". I1o, Dae Tnqpl~ctnr'q S*Unature

,201 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Data Report No. RF-14-044 Date: 1/9/2014 Address Sheet I of I 2. Plant: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address Unit: 1 1527254-01 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration, Date: Not Applicable

3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: NRH08 Code Class 2 5(a) Applicable Construction Code Pipe: Component:

N/A Edition N/A Addenda N/A Code Case 1974 Edition S74 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Add.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V BW/IP INT. E-560A-3-2 N/A 1E12F495B 1998 Replacement Yes 7.

Description:

Replaced the Disc in valve 1E12F495B 8. Tests Conducted:

Hydrostatic El Pneumatic

[- Nominal Operating Pressure El Other II Exempt R1 Pressure: psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Pressure test is exempt in accordance with IWA-4540(b)(10).

Receiving Information:

Cat ID -1166384; UTC # -2103149 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this4L!. 11c-IL"V i conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp N V A Certificate of Authorization No. W4 ) A Signed -VA,9,;;6*

§-Aý 8%,! ^el tDate I -20iqr Owo or OwnpeC.Detignee, Title U.CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Ipspectors and the State of Province of Illinois and employed by HSB Global Standard of CT 1Jl have inspected the components described in this Owner's Report during the period 43. J %", to 1/15/2014 , and state that to the best of my knowledge and belief, the Owherl has performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furtherme n tl he Inspector nor his employer shall be liable in any manner for any personal injury or prope ]e loss of any kind arising from or connected wj kR iI " Commissions N'K -ti I/National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: -Exelon Corporation Nam e Data Report No. RF-14-045 Date: 1/10/2014 Address Sheet 1 of 1 2. Plant: Clinton Power Station Name RR3. Box 228. Clinton. IL 61727.Address Unit: 1 1347627-01 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable

3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: NGE02 Code Class 1 5(a) Applicable Construction Code Pipe: Component:

1974 Edition S74 Addenda N/A Code Case 1974 Edition None Addenda 1622 Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Ad.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V ATWOOD & MORRILL 3-562 N/A 1B21F022A 1976 Replacement Yes 7.

Description:

Repaced Poppet.8. Tests Conducted:

Hydrostatic El Pneumatic 0 Nominal Operating Pressure Other D1 Exempt LI Pressure:

psi Test Temp: o F ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Cat ID -1145575; UTC # -2102086 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this fit .Al kl VC Yt. +conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp hJ I A Certificate of Authorization No. A .A Signed 9 , ; Date I"10 -,20_Aor Ovwosi- 'lsignee, ]Tide 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 Hartford Steam Boiler_of C' 4 .have inspected the components described in this Owner's Report during the periodto 1/10/2014 , and state that to the best of my knowledge and belief, the Ow1ner has perIformed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furthermore, e he tl pector nor his employer shall be liable in any manner for any personal injury or property dMm a I of any kind arising from or connedted; with this inspection.,"1/-V [

• V x--"x _ CommissionsNb lPcV6 4% ANeIVI V)L IS -Y Date Tnypetnr'q Signature 20..l.National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name RR3. Box 228. Clinton. IL 61727 Data Report No. RF-14-046 Date: 1/10/2014 Sheet 1 Unit: 1 1312496-01 of 1 I ... .... I , ,.. Address 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None No: Not Applicable Expiration Date:, Not Applicable Address 4. Identification of System: NHP01 Code Class 2 5(a) Applicable Construction Code Pipe: 1974 Edition S74 Addenda N/A Code Case Component:

1974 Edition W75 Addenda 1516-2 Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Ad.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V Yarway Corporation 7683 N/A 1 E22F006 1978 Replaced Yes 7.

Description:

Replaced Valve and Piping.8. Tests Conducted:

Hydrostatic

[] Pneumatic D Nominal Operating Pressure Other D Exempt D1 Pressure:

psi Test Temp: OF ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Valve: Cat ID -1417529; UTC # -2879230 Pipe: Cat ID -1145900; UTC # -2924466 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this le p6X Cvt. -conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp M& (A Certificate of Authorization No. N M A Signed O Date 10- 20AIt OvrOwner's De~fgnee, Tide CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspe tors and the State of Province of Illinois and employed by HSB Global Standard of _C have inspected the components described in this Owner's Report during the period<oai o i ),° to 1/14/2014 , and state that to the best of my knowledge and belief, the Owner hfs performed examinations and taken corrective measures described in this Owner's 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, conc .ning t eaminations and corrective measures described in this Owner's Report.Furthermore( n A thnspector nor his employer shall be liable in any manner for any personal injury or property 'a or ss of any kind arising from or connected wihtis inspectior.".

,~V!L _ Commissions

' i A N kL Date InNarftdcSnr'S P vignahic and Edr National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727: I ..'.. e " ý ", ; Address 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address 4. Identification of System: NVQ01 Data Report No. RF-14-047 Date: 1/20/2014 Sheet 1 of I Unit: 1 676920-01 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Da.te:* Not Applicable Code Class 2 5(a) Applicable Construction Code Pipe: 1974 Edition Component:

1974 Edition S74 Addenda W76 Addenda N/A Code Case 1774-1 Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Ad.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Re Component Manufacturer Serial Number Board No Identification Built Rep 7.

Description:

Replaced Valve and one Nut 8. Tests Conducted:

Hydrostatic El Pneumatic El Nominal Operating Pressure Other DI Exempt El Pressure:

psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XX 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Valve: Cat ID -1100045; UTC # -2118327 Nut: Cat ID -1146772; UTC # -2105582 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp iJA Certificate of Authorization No. N )A Signed Date I-2.o ,20j_1E Owneor Owne~gnee, 1Tide U, 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 HSB Global Standard of __CTr have inspected the components described in this Owner's Report during the period I1 as -lot to 1/20/2014 , and state that to the best of my knowledge and belief, the Owherhbs performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.FurtherVnorp, e he Inspector nor his employer shall be liable in any manner for any personal injury or pro rty hage a loss of any kind arising from or connected with this inspection., , ,,"-/IL Commissions

• I-- al4 Date Tn-prn' r14 a ir 20-d National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address Data Report No. RF-14-048 Date: 1/20/2014 2. Plant: Clinton Power Station Sheet 1 Unit: 1 1170663-02

& 50 of 1 Name RR3, Box 228, Clinton, IL 61727' Address 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorizdaton No: Not Applicable Expiraton-Date:

Not Applicable

4. Identification of System: NSX07 Code Class 3 5(a) Applicable Construction Code Pipe: 1974 Edition S74 Addenda N/A Code Case Component:

1974 Edition S75 Addenda --e Remarks Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Ad.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V ANCHOR DARLING E-6214-152-1 NA 1E12F068A 1978 Replacement Yes 7.

Description:

Replaced Disk (EC366623), Installed Guides. Machined New Disk. Repaired Valve Body Inside.8. Tests Conducted:

Hydrostatic El Pneumatic 0 Nominal Operating Pressure S6 Other 11 Exempt EJ Pressure:

psi Test Temp: OF ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Section III Code Cases -1516.1, 1567, 1622, 1635.1, 1677 Receiving Information:

Disc: Cat ID -1405558; UTC # -2848656 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this .4.,4 .Vconform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp w JA Certificate of Authorization No. t4 Ia.Signed H b s~ Z-,40Date i-%.a- _,20L_o*ve or Owneos-o'elignee, Title CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Mnslectors and the State of Province of Illinois and employed by HSB Global Standard of CJ .have inspected the components described in this Owner's Report during the period to 1/20/2014 , and state that to the best of my knowledge and belief, the Oivnerdhas performed examinations and taken corrective measures described in this Owner's 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 Owner's Report.Furthermo-, noe* r t e Inspector nor his employer shall be liable in any manner for any personal injury or propetd a e o loss of any kind arising from or con n~ wilis in pect-torLn., -4____________________Commissions KV!b O-II % M-J -,.1. --Date Tnqp.ctnr's qignahire

,20LL National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Data Report No. RF-14-049 Date: 1/20/2014 Address Sheet 1 of 1 2. Plant: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Address 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Unit: 1 1106991-13 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NSX06 Code Class 3 5(a) Applicable Construction Code Pipe: Component:

1974 Edition S74 Addenda N/A Code Case 1974 Edition S74 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Ad.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped PP Illinois Power NSX06 NA NSX06 1986 Replacement Yes 7.

Description:

Replaced Flange and Reducer. Also, Repaired 2 indications identified during the replacement process 8. Tests Conducted:

Hydrostatic El Pneumatic

[] Nominal Operating Pressure Other D Exempt D Pressure: psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Replaced Flange and Reducer. Also, Repaired 2 indications identified during the replacement process.Receiving Information:

Flange: Cat ID -1152692; UTC # -2867023 Reducer (4X8): Cat ID -1152923; UTC # -2869329 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this 1 -conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp M& IA Certificate of Authorization No. t4I) A Signed M 1 ý, s Z Date i --L o -20A Ownlei Owner'&Q;esigplee, Titde CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspe rs and the State of Province of. Illinois and employed by HSB Global Standard of _CT- I have inspected the components described in this Owner's Report during the period gO '1 3 to 1/20/2014 , and state that to the best of my knowledge and belief, the Owher h s performed examinations and taken corrective measures described in this Owner's 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 e 'aminations and corrective measures described in this Owner's Report.Furthermo , neer henspector nor his employer shall be liable in any manner for any personal injury or proper la or loss of any kind arising from or conneted s 1/1// '/ Commissions s________, __L __L_Date Tpctr Sagnahire 0-National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address Data Report No. RF-14-050 Date: 1/21/2014 2. Plant: Clinton Power Station Sheet I Unit: 1 1S2728g-Ol of 1 Name RR3 Box 228 Clinton IL 61727 I I I..Address 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NRH07 Code Class 2 5(a) Applicable Construction Code Pipe: Component:

1974 Edition Summ 74 Addenda N/A Code Case 1977 Edition Summ 77 Addenda N/A Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Ad.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V A. G. Crosby N99662-00-0004 N/A 1 E12F017A 2004 Replacement Yes 7.

Description:

Replaced Relief Valve.8. Tests Conducted:

Hydrostatic El Pneumatic El Nominal Operating Pressure RJ Other II Exempt El Pressure:

psi Test Temp: o F ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Cat ID -1389505; UTC # -2695196 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and thisiApe f.emssi" conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp r4 AI.Certificate of Authorization No. NJ A Signed we ne V' Date -__Owr eUrr Owwlgee, -rile CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Jnsppctors and the State of Province of Illinois and employed by HSB Global Standard of _C4 have inspected the components described in this Owner's Report during the period+/-I..L oH-10 i to 1/21/2014 , and state that to the best of my knowledge and belief, the Oivner' has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.By signing this certifica ni~ter the Inspector nor his employer makes any warranty, expressed or implied, co erning t exar nations and corrective measures described in this Owner's Report.Furthermc re, ier he In ector nor his employer shall be liable in any manner for any personal injury or prope da e Jof any kind arising from or connec'tj tis irspec~iojj

.___ ________________. Commissions M ?9J Z)IV I L _ 'Dae Tn,;pectnr'q Signahire 01 National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corooration Name 965 Chesterbrnok Blvd..- Wayne. PA 1 gflR7 Data Report No. RF-14-051 Date: 1/21/2014 Address 2. Plant: Clinton Power Station Sheet 1 Unit: 1 1166934-01 of 1 Name RR3. Box 228. Clinton. IL 61727 S. .Address 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NSX07 Code Class 3 5(a) Applicable Construction Code Pipe: Component:

1974Edition Summ 74 Addenda N/A Code Case 1974 Edition Wint 76 Addenda 1774-1 Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Ad.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V Fisher Controls 19102244 NA 1SXO14A 2010 Replaced Yes 7.

Description:

Replaced Valve 1SXO14A.8. Tests Conducted:

Hydrostatic El Pneumatic El Nominal Operating Pressure Other El Exempt El Pressure: psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Cat ID -1145800: UTC # -2859297 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this *!eFpC')tA conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp )4( A Certificate of Authorization No. W .A Signed W% It,,4, Y Date I.- 2.1 -,201_--O0r or Owrmes.Dsignee, -Title V/CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Ipspectors and the State of Province of Illinois and employed by HSB Global Standard of _CT/, have inspected the components described in this Owner's Report during the period?- /aL%, ILO 13 to 1/21/2014 , and state that to the best of my knowledge and belief, the Oner Has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.By signing this certificate neitherlhe Inspector nor his employer makes any warranty, expressed or implied, concerning t/hp ex ain .ions and corrective measures described in this Owner's Report.Furthermore, n e spe r nor his employer shall be liable in any manner for any personal injury or property dana g a I Jss ;f ny kind arising from or connected with this inspecl!.on.i t/l---

h( g nlv Date sn~cn' ~p~1r 20j~L National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address Data Report No. RF-14-052 Date: 1/22/2014 Sheet 1 of I Unit: 1 496573-01 2. Plant: Clinton Power Station Name RR3 Box 228 Clinton IL 61727 I I I Address 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date:., Not Aliplicable Address 4. Identification of System: NSX07 Code Class 3 5(a) Applicable Construction Code Pipe: 1974 Edition S74 Addenda N/A Code Case Component:

1974 Edition Wint 76 Addenda 1774.1 Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Ad.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V Fisher Control 16986253 N/A 1SX004A 2007 Replaced No 7.

Description:

Replaced Valve.8. Tests Conducted:

Hydrostatic D Pneumatic El Nominal Operating Pressure Other D] Exempt 11 Pressure:

psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Cat ID -1100053; UTC# -2795445 0 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and thisRe PAUI r£. conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp H ' )A Certificate of Authorization No. m)A Signed IMAlm , -if.e", Wi,- y Ow ejrr Own..s.Desgnee, Title 0 Date -% -L"-, 20_Lj+_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 HSB Global Standard of '_CT I I have inspected the components described in this Owner's Report during the period[ /a./'.oI, to 1/27/2014 , and state that to the best of my knowledge and belief, the Owner hhs performed examinations and taken corrective measures described in this Owner's 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 e aminations and corrective measures described in this Owner's Report.Furthermore ei erfh Lnspector nor his employer shall be liable in any manner for any personal injury or property r loss of any kind arising from or conn-cted with this inspection.

s_ \ l Commissions NJ 4 1 0 A)-I,, N .L X-I 0 Date Tn,;pectr' ignq S4~ 2dL National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 Chesterbrook Blvd., Wayne, PA 19087 Address 2. Plant: Clinton Power Station Data Report No. RF-14-053 Date: 1/22/2014 Sheet I Unit: 1 1170663-01

& 49 of 1 Name RR3. Box 228. Clinton. IL 61727 RR3 Box 228 Clinton IL 61727 4 1 1--Address 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Repair Organization P.O. No., Job No.Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: Not Applicable Address 4. Identification of System: NSX07 Code Class 3 5(a) Applicable Construction Code Pipe: Component:

1974 Edition Summ 74 Addenda N/A Code Case 1974 Edition Summ 75 Addenda --e Remarks Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec XI 2004 Ed; No Ad.(c)Section XI code Cases used 1516.1,1567,1622,1635.1,1677

6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V ANCHOR DARLING E-6214-151-1 N/A 1E12FO14A 1978 Replacement No 7.

Description:

Replaced Disk (EC 366623), Installed Guides, and Machined New Disk 8. Tests Conducted:

Hydrostatic El Pneumatic 0 Nominal Operating Pressure 91 Other El Exempt El Pressure: psi Test Temp:

ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

ASME Section III Cde Cases -1516.1,1567,1622,1635.1, 1677 Receiving Information:

Disk: Cat ID -1405558; UTC # -2848655 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this ?A'1 t ft " conform to the rules of the ASME Code,Section XI. repair or replacement Type Code Symbol Stamp JNi A Certificate of Authorization No. PIJIA Signed I e- & ý 15v%ý,', ty fDate 7-,z& -.201L Ovfjor Owne;49-Vefgnee, Tide v CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel and the State of Province of Illinois and employed by HSB Global Standard of CT / I have inspected the components described in this Owner's Report during the period u75-105,1iS to 1/23/2014 , and state that to the best of my knowledge and belief, the O4nei has performed examinations and taken corrective measures described in this Owner's Report in accordance with the requirements of the ASME Code,Section XI.By signing this certificat ei her the Inspector nor his employer makes any warranty, expressed or implied, c erni g th ex Iinations and corrective measures described in this Owner's Report.FurthermyMre, frher he I ector nor his employer shall be liable in any manner for any personal injury or propetyalge s of any kind arising from or conn l witkis insection.

\o. /. // 9" Commissions

__ ______1 _________Date Tn Cignnb irp , 20 A National Board, State, Province, and Endorsements ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 1. Owner: Exelon Corporation Name 965 flheterbrook Blvd.. Wayne. PA I 90R7 Data Report No. RF-14-054 Date: 1/23/2014 Address 2. Plant: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Sheet 1 Unit: 1 576535-01 of 1 S. .., Address 3. Work Performed by: Clinton Power Station Name RR3, Box 228, Clinton, IL 61727 Repair Organization P.O. No., Job No.,Type Code Symbol Stamp: None Authorization No: Not Applicable Expiration Date: : Not Applicable Address 4. Identification of System: NSX07 Code Class 3 5(a) Applicable Construction Code Pipe: 1974Edition Summ 74 Addenda N/A Code Case Component:

1974 Edition Wint 76 Addenda 1774-1 Code Case (b) Applicable Edition of Section XI Utilized for Repairs or Replacements ASME Sec X) 2004 Ed; No Ad.(c)Section XI code Cases used N/A 6. Identification of Components Repaired or Replaced and Replacement Components Name of Name of Manufacturer National Other Year Repaired ASME Component Manufacturer Serial Number Board No Identification Built Replaced or Code Replacement Stamped V Fisher Control 16749449 N/A 1 SX008A 2004 Replaced Yes 7.

Description:

Replaced the Valve.8. Tests Conducted:

Hydrostatic El Pneumatic El Nominal Operating Pressure S6 Other El Exempt El Pressure:

psi Test Temp: o F ER-AA-330-009 Revision 6 FORM NIS-2 OWNER'S REPORT FOR REPAIRS OR REPLACEMENTS As Required by the Provisions of the ASME Code Section XI 9. Remarks (Applicable Manufacturer's Data Reports to be attached):

Receiving Information:

Valve: Cat ID -1145800; UTC # -2697847 CERTIFICATE OF COMPLIANCE We certify that the statements made in the report are correct and this Revi a.1 -,,tA conform to the rules of the ASME Code,Section XI. repAir or replacement Type Code Symbol Stamp I1A Certificate of Authorization No. NJ A Date I- Z .20_L_or OwneJq-Ibe ignee, Tide CERTIFICATE OF INSERVICE INSPECTION I, the undersigned, holding a valid commission issued by the National Board of Boiler and Pressure Vessel Inspect rs and the State of Province of Illinois and employed by HSB Global Standard of __CT I I have inspected the components described in this. Owner's Report during the period 1-1 /a/ia- to 1/23/2014 and state that to the best of my knowledge and belief, the Owner hag performed examinations and taken corrective measures described in this Owner's 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 exprminations and corrective measures described in this Owner's Report.Furthern Prneqer he nor his employer shall be liable in any manner for any personal injury or prop rtyr ge or a, ss of any kind arising from or connect Witlhis insFection..

,____________________

Comm issions N. *ea #n )A Date In pprtnr', Signature 2 National Board, State, Province, and Endorsements 0