ML14318A196
| ML14318A196 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 09/05/2014 |
| From: | Polson K J Tennessee Valley Authority |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML14318A196 (8) | |
Text
Dz5~cJ ie4c(jcbrAqmIt[ICATennessee Valley Authority, Post Office Box 2000. Decatur, Alabama 35609-2000 September 5, 201410 CFR 21.21ATTN: Document Control DeskU.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Browns Ferry Nuclear Plant, Units 1, 2, and 3Renewed Facility Operating License Nos. DPR-33,NRC Docket Nos. 50-259, 50-260, and 50-296DPR-52, and DPR-68
Subject:
10 CFR Part 21 Interim Report -Engine Systems, Inc. -Emergency Diesel Generator Heat Exchanger CEY564L-HEX The Tennessee Valley Authority (TVA) recently identified a leak in the weld of theEmergency Equipment Cooling Water outlet piping on the head of the C2 Emergency Diesel Generator (EDG) heat exchanger, CEY564L-HEX.
Corrective Action Programdocuments were written to document the failure of the heat exchanger weld and toperform an engineering evaluation of the condition.
TVA's evaluation concluded that thiscondition has the potential to constitute a reportable condition pursuant to Title 10 of theCode of Federal Regulations (10 CFR) Part 21, "Reporting of Defects andNoncompliance,"
and as such, requires additional evaluation.
The TVA must perform additional analysis in order to determine the significance of theweld defect. TVA will submit a final 10 CFR Part 21 report by November 6, 2014. Theenclosure to this letter provides information required by 10 CFR Part 21.21 (a)(2) for theinterim report of this condition.
There are no new regulatory commitments contained in this letter. Should you have anyquestions concerning this submittal, please contact J. L. Paul, Nuclear Site Licensing
- Manager, at (256) 729-2636.
Respectfully S-/E3r U.S, Nuclear Regulatory Commission Page 2September 5, 2014
Enclosure:
10 CFR Part 21 Interim Report -Engine Systems, Inc. -Emergency Diesel Generator Heat Exchanger CEY564L-HEX cc (w/ Enclosure):
NRC Regional Administrator
-Region IINRC Senior Resident Inspector
-Browns Ferry Nuclear Plant Enclosure Browns Ferry Nuclear Plant,Units 1, 2, and 310 CFR Part 21 Interim ReportEngine Systems, Inc. -Emergency Diesel Generator Heat Exchanger CEY564L-HEX See Enclosed 10 CFR Part 21 Interim Report -Engine Systems, Inc. -Emergency Diesel Generator HeatExchanger CEY564L-HEX Name and Address of the Individual Making the Interim ReportMr. K. J. PoisonVice President Browns Ferry Nuclear PlantTennessee Valley Authority Post Office Box 2000Decatur, Alabama 35609-2000 Identification of the facility, the activity, or basic component supplied for such facility or suchactivity within the United States which fails to comply or contains a defect (under evaluation)
On July 10, 2013, the Tennessee Valley Authority (TVA) identified a leak in the weld of theEmergency Equipment Cooling Water (EECW) outlet piping on the head of the C2 Emergency Diesel Generator (EDG) heat exchanger, CEY564L-HEX.
Identification of the firm constructin-g the facility or supplying the basic component which fails tocomply or contains a defect (under evaluation)
Engine Systems, Inc.175 Freight RdRocky Mount, NC 27804Description of the Deviation or Failure to Comply that is being Evaluated A leak was identified in the weld of the EECW outlet piping on the head of the C2 EDG heatexchanger.
The TVA determined the cause of the leak to be a vendor manufactured failed weldin the weld joint between the EECW line connection and the inlet / outlet heat exchanger head.Evaluation StatusThe TVA determined the cause of the leak to be a vendor manufactured failed weld in the weldjoint between the EECW line connection and the inlet / outlet heat exchanger head. The C2EDG heat exchanger will undergo additional analysis in order to determine the safetysignificance of the weld defect. Once the analysis is complete, TVA will complete the 10 CFRPart 21 evaluation.
Date on which Evaluation will be Completed The TVA will submit a final 10 CFR Part 21 report by November 6, 2014.E-1
,NSTRUCTIONS FOR FORM 41LLICENSING TRANSMITTAL TO NRC SUMMARY AND CONCURRENCE SHEETDATE DUE: September 5, 2014 -(A) PREPARER:
Mark B. Acker (7533)
SUBJECT:
Interim Part 21 Report -C2 Emergency Diesel Generator Heat Exchanger Weld Defect -PER 913911REGULATORY CONSIDERATIONS (B) Oath or Affirmation nl YES 0 NO (E) Posting Requirements Ii YES 0 NO(C) Licensing Verification 0 YES El NO (F) FSAR EFFECT El YES 0 NO(D) New Commitments E] YES Z NO (G) OGC Consultation El YES 0 NO(H) LIC-109 Review El YES 0 N/A (I) Engineering Independent El YES 0 NOTechnical Review (ITR)*Engineering (only): I Design Change # N/AINDEPENDENT TECHNICAL REVWER(J) Licensing (only):PEER CHECKERCONCURRENCE (K)A concurrence signature reflects that the signatory has assured that, with respect to the signatory's area of cognizance, the submittal is appropriate and consistent with TVA Policy, the submittal is complete and accurate, applicable commitments are approved for implementation and supporting documentation for submittal completeness and accuracyhas been prepared.
NAME ORGANIZATION SIGNATURE DATEICAREB26J. Paul Site Licensing Manager V<<.,'IS. Hunnewell Engineering Manager I/P. Summers Director Plant SupportB. Wetzel Corp Licensing 0(L) Licensing (only): S>--J(k&{
,L -"'5rO .)QUALITY IEVIEWERTVA 41035Page 1 of 1NPG-SPP-03.10-1
[10-31-2013]
,NSTRUCTIONS FOR FORM 41LICENSING TRANSMITTAL TO NRC SUMMARY AND CONCURRENCE SHEETDATE DUE September
- 5. 2014 (A) PREPARER Mark B. Acker (7533)SUBJECT Interim Part 21 Report -C2 Emergency Diesel Generator Heat Exchanger Weld Defect -PER 913911REGULATORY CONSIDERATIONS (B) Oath or Affirmation E YES & NO (E) Posting Requirements E YES 0 NO(C) Licensing Verification 09 YES C] NO (F) FSAR EFFECT LI YES 0 NO(D) New Commitments 0 YES Z NO (G) OGC Consultation f- YES 0 NO(H) LIC-109 Review C3 YES [D N/A (I) Engineering Independent C] YES 0 NOTechnical Review (ITR)*Engineering (only) Design Change # N/AINDEPENDENT TECHNICAL REVIWER(j) Licensing (only) -.C/ 74) 6?PEER CHECKERCONCURRENCE (K)A concurrence signature reflects that the signatory has assured that. with respect to the signatory's area of cognizance, the submittal is appropriate and consistent with TVA Policy. the submittal is complete and accurate, applicable commttments are approved for implementation and supporting documentation for submittal completeness and accuracyhas been preparedNAME ORGANIZATION SIGNATURE DATEICA REB .7~a.L-- _____.1. uinul Site Liccnsingf Nlanag~er S. IlunnewelI Enginecrint!
Manager1'. S.ummers Director Plant Support11. Wetzel Corp Licenring (L) Licensing (only).QUALITY REVIEWERTVA 41035Page 1 of 1NPG-SPP-03 10-1 110-31-20131 oNSTRUCTIONS FOR FORM 41LLICENSING TRANSMITTAL TO NRC SUMMARY AND CONCURRENCE SHEETDATEDUE Setembr 5 204 I(A) PREPARER:
Mark B. Acker (7533)
SUBJECT:
Interim Part 21 Report -C2 Emergency Diesel Generator Heat Exchanger Weld Defect -PER 913911REGULATORY CONSIDERATIONS (B) Oath or Affirmation
[]YES 0 NO (E) Posting Requirements El YES 0 NO(C) Licensing Verification
[ YES El NO (F) FSAR EFFECT []YES [ NO(D) New Commitments
[] YES [ NO (G) OGC Consultation El YES [] NO(H) LIC-109 Review E] YES Z N/A (I) Engineering Independent El YES
- NOTechnical Review (ITR)*Engineering (only): / Design Change # NIAINDEPENDENT TECHNICAL REWER(J) Licensing (only): A/5PEER CHECKERCONCURRENCE (K)A concurrence signature reflects that the signatory has assured that, with respect to the signatory's area of cognizance, the submittal is appropriate and consistent with TVA Policy, the submittal is complete and accurate, applicable commitments are approved for implementation and supporting documentation for submittal completeness and accuracyhas been prepared.
NAME ORGANIZATION SIGNATURE DATEICAREBJ. Paul Site Licensing ManagerS. Hunnewell Engineering Manager .P. Summers Director Plant SupportB. Wetzel Corp Licensing (L) Licensing (only): /QUALITY REVIEWERTVA 41035Page 1 of 14NPG-SPP-03.10-1
[10-31-20131 Integrated Coi.,1leteness and Accuracy Review L..:,uation BoardMinutes01 /,o5 /iohiDate:Subjectmm/dd/yyyy
,T')vt e, ,r% 2 ýIA eo, f- -P,C2 Lb6H,) L1e/J l)e bec.ýCorrespondence Type:NOV Response E] GL Response E] Bulletin Response
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Tot I 'I r", -pp -Board MembersMember Name (print) TitleChairperson
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Now'Yesl1Describe Additional Validation (if required):
C1. Q LC L A/ CV;./(6 eIcc/y %dr--eciCN~2&JiMinutes Approved:
/ Q JICAREB Chairperson/Date