ML14318A196

Browns Ferry, Units 1, 2 and 3, 10 CFR Part 21 Interim Report - Engine Systems, Inc. - Emergency Diesel Generator Heat Exchanger CEY564L-HEX

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(j cbrAqm It[ICA Tennessee Valley Authority, Post Office Box 2000. Decatur, Alabama 35609-2000 September 5, 2014 10 CFR 21.21 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Browns Ferry Nuclear Plant, Units 1, 2, and 3 Renewed Facility Operating License Nos. DPR-33, NRC Docket Nos. 50-259, 50-260, and 50-296 DPR-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 the Emergency Equipment Cooling Water outlet piping on the head of the C2 Emergency Diesel Generator (EDG) heat exchanger, CEY564L-HEX.

Corrective Action Program documents were written to document the failure of the heat exchanger weld and to perform an engineering evaluation of the condition.

TVA's evaluation concluded that this condition has the potential to constitute a reportable condition pursuant to Title 10 of the Code of Federal Regulations (10 CFR) Part 21, "Reporting of Defects and Noncompliance," and as such, requires additional evaluation.

The TVA must perform additional analysis in order to determine the significance of the weld defect. TVA will submit a final 10 CFR Part 21 report by November 6, 2014. The enclosure to this letter provides information required by 10 CFR Part 21.21 (a)(2) for the interim report of this condition.

There are no new regulatory commitments contained in this letter. Should you have any questions 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 2 September 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 II NRC Senior Resident Inspector

-Browns Ferry Nuclear Plant Enclosure Browns Ferry Nuclear Plant, Units 1, 2, and 3 10 CFR Part 21 Interim Report Engine Systems, Inc. -Emergency Diesel Generator Heat Exchanger CEY564L-HEX See Enclosed 10 CFR Part 21 Interim Report -Engine Systems, Inc. -Emergency Diesel Generator Heat Exchanger CEY564L-HEX Name and Address of the Individual Making the Interim Report Mr. K. J. Poison Vice President Browns Ferry Nuclear Plant Tennessee Valley Authority Post Office Box 2000 Decatur, Alabama 35609-2000 Identification of the facility, the activity, or basic component supplied for such facility or such activity 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 the Emergency 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 to comply or contains a defect (under evaluation)

Engine Systems, Inc.175 Freight Rd Rocky Mount, NC 27804 Description 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 heat exchanger.

The TVA determined the cause of the leak to be a vendor manufactured failed weld in the weld joint between the EECW line connection and the inlet / outlet heat exchanger head.Evaluation Status The TVA determined the cause of the leak to be a vendor manufactured failed weld in the weld joint between the EECW line connection and the inlet / outlet heat exchanger head. The C2 EDG heat exchanger will undergo additional analysis in order to determine the safety significance of the weld defect. Once the analysis is complete, TVA will complete the 10 CFR Part 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 41L LICENSING TRANSMITTAL TO NRC

SUMMARY

AND CONCURRENCE SHEET DATE DUE: September 5, 2014 -(A) PREPARER:

Mark B. Acker (7533)

SUBJECT:

Interim Part 21 Report -C2 Emergency Diesel Generator Heat Exchanger Weld Defect -PER 913911 REGULATORY 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 NO Technical Review (ITR)*Engineering (only): I Design Change # N/A INDEPENDENT TECHNICAL REVWER (J) Licensing (only): PEER CHECKER CONCURRENCE (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 accuracy has been prepared.NAME ORGANIZATION SIGNATURE DATE ICAREB26 J. Paul Site Licensing Manager V<<.,'I S. Hunnewell Engineering Manager I/P. Summers Director Plant Support B. Wetzel Corp Licensing 0 (L) Licensing (only): S>--J(k&{ ,L -"'5rO .)QUALITY IEVIEWER TVA 41035 Page 1 of 1 NPG-SPP-03.10-1

[10-31-2013]

,NSTRUCTIONS FOR FORM 41 LICENSING TRANSMITTAL TO NRC

SUMMARY

AND CONCURRENCE SHEET DATE DUE September

5. 2014 (A) PREPARER Mark B. Acker (7533)SUBJECT Interim Part 21 Report -C2 Emergency Diesel Generator Heat Exchanger Weld Defect -PER 913911 REGULATORY 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 NO Technical Review (ITR)*Engineering (only) Design Change # N/A INDEPENDENT TECHNICAL REVIWER (j) Licensing (only) -.C/ 74) 6?PEER CHECKER CONCURRENCE (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 accuracy has been prepared NAME ORGANIZATION SIGNATURE DATE ICA REB .7~a.L-- _____.1. uinul Site Liccnsingf Nlanag~er S. IlunnewelI Enginecrint!

Manager 1'. S.ummers Director Plant Support 11. Wetzel Corp Licenring (L) Licensing (only).QUALITY REVIEWER TVA 41035 Page 1 of 1 NPG-SPP-03 10-1 110-31-20131 oNSTRUCTIONS FOR FORM 41L LICENSING TRANSMITTAL TO NRC

SUMMARY

AND CONCURRENCE SHEET DATEDUE Setembr 5 204 I(A) PREPARER:

Mark B. Acker (7533)

SUBJECT:

Interim Part 21 Report -C2 Emergency Diesel Generator Heat Exchanger Weld Defect -PER 913911 REGULATORY 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

• NO Technical Review (ITR)*Engineering (only): / Design Change # NIA INDEPENDENT TECHNICAL REWER (J) Licensing (only): A/5 PEER CHECKER CONCURRENCE (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 accuracy has been prepared.NAME ORGANIZATION SIGNATURE DATE ICAREB J. Paul Site Licensing Manager S. Hunnewell Engineering Manager .P. Summers Director Plant Support B. Wetzel Corp Licensing (L) Licensing (only): /QUALITY REVIEWER TVA 41035 Page 1 of 1 4NPG-SPP-03.10-1

[10-31-20131 Integrated Coi., 1 leteness and Accuracy Review L..:,uation Board Minutes 01 /,o5 /iohi Date: Subject mm/dd/yyyy ,T')vt e, ,r% 2 ýI A eo, f- -P, C2 Lb6 H,) L1e/J l)e bec.ýCorrespondence Type: NOV Response E] GL Response E] Bulletin Response [] CAL Response 5]Allegation Response El RAI Response [I NOED [] Relief Request 0 Security Event Report 5 LAR 0 LER El Licensedclperator

] Required Report 0 Other'q Describe:

Tot I 'I r", -pp -Board Members Member Name (print) Title Chairperson

-- ; j-'vl Pv1-e,,-Member #2 C/\ ne A essar Member #3 ";~ ;ce- ~L~;ce~Member #4_(if necessary)

__________________________

Minutes Discussion of Validation/Verification Performed-., fJ ÷j

-do 5----j due i-J e, f\ 1r1e-f,"nly n(J ý F er 9 e-r-\Yes*j)I p.Cý n evcA /U dC, , ý"C Conclusion Additional Validation/Verification Required: Now'Yesl1 Describe Additional Validation (if required):

C1. Q LC L A/ CV;./(6 e Icc/y %dr--eci CN~2&Ji Minutes Approved:/ Q J ICAREB Chairperson/Date