ML20199L347

Forwards SER Providing Final Conclusions & Recommendations from Evaluation of Tdi Owners Group Program to Validate & Update Quality of Tdi Diesel Generators.Program Will Establish Adequacy of Generators for Standby Svc

ML20199L347
Person / Time
Site:	Catawba
Issue date:	07/02/1986
From:	Jabbour K Office of Nuclear Reactor Regulation
To:	Tucker H DUKE POWER CO.
Shared Package
ML20199L352	List: ML20199L347 ML20199L394
References
NUDOCS 8607090382
Download: ML20199L347 (3)

Text

_ _ . _ __.

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',[ g NUCLEAR REGULATORY COMMISSION g E WASHINGTON, D. C. 20555

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Docket Nos. 50-413 l and 50-414 Mr. H.B. Tucker, Vice President Nuclear Production Department l

Duke Power Company 422 South Church Street ,

Charlotte, North Carolina 28242  !

SUBJECT:

TRANSMITTAL OF A SAFETY EVALUATION REPORT ON OPERABILITY /

RELIABILITY OF EMERGENCY DIESEL GENERATORS MANUFACTURED BY TRANSAMERICA DELAVAL, INC.

The NRC staff has completed its evaluation of the Owners Group program to validate and upgrade, as necessary, the design and manufacturing quality of the TDI diesel generators for nuclear standby service. The enclosed Safety Evaluation Report (SER) provides the staff's final conclusions and reconnendations steming from its evaluation of the Owners Group program.

The staff has concluded that implementation of the Owners Group and PNL recomendations concerning, among other things, quality revalidation inspections, component modifications and replacement, load restrictions, operating precautions, will establish the adequacy of the TDI diesel generators for nuclear standby service as required by General Design Criterion (GDC) 17. The staff further concludes that these actions will ensure that the design and manufacturing quality of the TDI engines is within the range nonnally assumed for diesel engines designed and manufactured in accordance with 10 CFR 50, Appendix B. Continued reliability / operability of the TDI engines for the life of the Catawba facility will be ensured by implementation of the maintenance / surveillance program discussed in Section 2.3 of the enclosed SER.

Accordingly, the staff has concluded that a technical resolution is available to address the so-called "TDI diesel generator issue," namely the concerns which were raised regarding the reliability of the TDI diesel generators following the crankshaft failure at Shoreham in August 1983. Technical <

resolution will involve implementation of an acceptable Phase I program as identified in Section 2.1 of the SER, an acceptable Phase II program as identified in Section 2.2 of the SER, and implementation of an acceptable maintenance and surveillance program as identified in Section 2.3 of the SER.

These actions are supplemental to requirements which must nonnally be satisfied (e.g., Regulatory Guide 1.108).

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> t 3GL Y As a point of clarification, the staff has previously issued " interim" SERs for Catawba Units I and 2 which concluded that the respective engines were adequate for nuclear service until the first refueling outage. Part of the " interim" basis for this finding was a set of license conditions pertaining to the TDI engines which were issued for Catawba Unit 1 in NPF-35, and for Catawba Unit 2 in NPF-52. You should be aware that these license conditions may need to be modified at the first refueling to comply with the enclosed SER.

Should you have any questions regarding the enclosure, please contact me at (301)492-7367.

Sincerely, Kahtan Jabbour, Project Manager PWR Project Directorate #4 Division of PWR Licensing-A

Enclosure:

As stated cc: See next page DISTRIBUTION:

Docket. Files

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at PWR#4/DPWR-A PWg4hPWR-A PWR#4/ PWR-A KJabbour/ rad MDuncan BJYoungblood 07/p86 07/Jy86 07/)/86 1

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As a point of clarification, the staff has previously issued " interim" SERs for Catawba Units 1 and 2 which concluded that the respective engines were adequate for nuclear service until the first refueling outage. Part of the " interim" basis for this finding was a set of license conditions pertaining to the TDI engines which were issued for Catawba Unit 1 in NPF-35, and for Catawba Unit 2 in NPF-52. You should be aware that these license conditions may need to be modified at the first refueling to comply with the enclosed SER.

Should you have any questions regarding the enclosure, please contact me at (301)492-7367.

Sincerely, E.-

Kahtan Jabbour, Project Manager PWR Project Directorate #4 Division of PWR Licensing-A

Enclosure:

As stated cc: See next page 4

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