ML20207H411

Forwards SER Re Operability & Reliability of Tdi Emergency Diesel Generators.Implementation of Tdi Owners Group & Bnwl Recommendations Concerning Quality Revalidation Insps & Component Mods Establishes Tdi Generator Adequacy

ML20207H411
Person / Time
Site:	River Bend
Issue date:	07/16/1986
From:	Butler W Office of Nuclear Reactor Regulation
To:	William Cahill GULF STATES UTILITIES CO.
Shared Package
ML20207H414	List: ML20207H411 ML20207H415
References
NUDOCS 8607240306
Download: ML20207H411 (4)

Text

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Ig UNITED STATES y 3.n g NUCLEAR REGULATORY COMMISSION

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JUL 16198S Locket No. 50-458 Mr. William J. Cahill, Jr.

Senior Vice President River Bend Nuclear Group Gulf States Utilities Company P. O. Box 2951 Beaumont, Texas 77704 Attn: Mr. J. E. Booker

Subject:

SAFETY EVALUATION REPORT RE THE OPERABILITY / RELIABILITY OF THE EMERGENCY DIESEL GENERATORS MANUFACTURED BY TRANSAMERICA DELAVAL, INC. - RIVER BEND STATION The NRC staff has completed its evaluation of the Transamerica Delaval, Inc.

Diesel Generator Owners Group (TDI/0G) program to validate and upgrade, as necessary, the design and manufacturing quality of the TDI diesel generators for nuclear emergency standby service. The enclosed Safety Evaluation Report (SER) provides the staff's conclusions and recommendations stemming from its evaluation of the TDI/0G program. The enclosed SER will be published in NUREG form in July 1986.

In summary, the staff has concluded that the implementation of the TDI/0G and Pacific Northwest Laboratory reconnendations concerning quality revali- .

dation inspections, component modifications and replacement, load restric-tions, operating precautions, etc. will establish the adequacy of the TDI diesel generators for nuclear service as required by General Design Criterion (GDC) 17. The staff further concludes that these programs (actions) will ensure that the design and manufacturing ouality of the TDI diesel engines is within the range normally assumed for diesel engines designed and manufactured in accordance with 10 CFR 50, Appendix B. Con-tinued reliability / operability of the TDI diesel engines for the 40-year life of the River Bend Station Nuclear Power Plant, utilizing those engines, will be assured by implementation of the maintenance / surveillance program discussed in Section 2.3 of the enclosed SER.

Accordingly, the staff finds that a technical solution is available to address the "TDI diesel generator issue"; namely, the concerns which were raised regarding the reliability of the TDI diesel generators following the crankshaft failure which occurred at the Shoreham Nuclear Power Plant in August 1983. This technical resolution involves implementation, by Gulf States Utilities, GSU, of (1) the Phase I program identified in Section 2.1 of the enclosed SER; (2) the Phase II program identified in Section 2.2 of the enclosed SER; and (3) the maintenance / surveillance progran identified in Section 2.3 of the enclosed SER. It should be noted that these action programs 8607240306 860716 PDR ADOCK 00000458 S PDR

are supplemental to the requirements which must normally be satisfied (e.g.,

Regulatory Guide 1.108).

The staff has also concluded that several of the Phase I program diesel engine components merit special emphasis in the area of load restrictions and/or maintenance and surveillance. For River Bend components, load restrictions relative to diesel engine performance discussed in SER Supplement No. 3 have been addressed in the current River Bend Station Technical Specifications. The more critical maintenance / surveillance actions are cited as License Condition 2.C(8) and Attachment 3 to the River Bend Station operating license (NPF-47).

We note that, in view of the issuance of the enclosed SER, Attachment 3 to License NPF-47 will require changes. Please review this SER to determine the scope of changes required to your license and other commitments to the agency.

Please inform the Project Manager of your schedule for amending your license.

Sincerely,

@lsignedby lelph Coruso p Walter R. Butler, Director BWR Project Directorate No. 4 Division of BWR Licensing

Enclosure:

As stated cc w/ enclosure:

See next page Distribution

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i are supplemental to the requirements which must normally be satisfied (e.g.,

Regulatory Guide 1.108).

The staff has also concluded that several of the Phase I program diesel engine components merit special emphasis in the area of load restrictions and/or maintenance and surveillance. For River Bend components, load restrictions relative to diesel engine performance discussed in SER Supplement No. 3 have been addressed in the current River Bend Station Technical Specifications. The more critical maintenance / surveillance actions are cited as License Condition 2.C(8) and Attachment 3 to the River Bend Station operating license (NPF-47).

We note that, in view of the issuance of the enclosed SER, Attachment 3 to License NPF-47 will require changes. Please review this SER to determine the scope of changes required tc your license and other commitments to the agency.

Please inform the Project Manager of your schedule for amending your license.

Sincerely, l AN Walter R. Butler, Director BWR Project Directorate No. 4 Division of BWR Licensing i

Enclosure:

As stated cc w/ enclosure:

See next page i

Mr. William J. Cahill, Jr.

Gulf States Utilities Company River Bend Nuclear Plant cc:

Troy Be Conner, Jr., Esq. Ms. Linda B. Watkins/Mr. Steven Irving Conner and Wetterhahn Attorney at Law 1747 Pennsylvania Avenue, NW 355 Napoleon Street Washington, D.C. 20006 Baton Rouge, Louisiana 70802 Mr. William J. Reed, Jr. -

Mr. David Zaloudek Director - Nuclear Licensing Nuclear Energy Division Gulf States Utilities Company Louisiana Department of P. O. Box 2951 Environmental Quality Beaumont, Texas 77704 P. O. Box 14690 Baton Rouge, Louisiana 70898 Richard M. Troy, Jr., Esq.

Assistant Attorney General in Charge Mr. J. David McNeill, III State of Louisiana Department of Justice William G. Davis, Esq.

234 Loyola Avenue Department of Justice New Orleans, Louisiana 70112 Attorney General's Office 7434 Perkins Road Resident Inspector Baton Rouge, Louisiana 70808 P. O. Box 1051 St. Francisville, Louisiana 70775 H. Anne Plettinger 3456 Villa Rose Drive Gretchen R. Rothschild Baton Rouge, Louisiana 70806 Louisianians for Safe Energy, Inc.

1659 Glenmore Avenue Baton Rouge, Louisiana 70775 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission Office of Executive Director for Operations 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011

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