ML19291C409

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Responds to IE Bulletin 79-14, Seismic Analysis for As- Built Safety-Related Piping Sys. Unit 3 safety-related Piping Has Been Inspected & Measured.One Nonconformance Was Identified & Resolved
ML19291C409
Person / Time
Site: Peach Bottom  Constellation icon.png
Issue date: 12/20/1979
From: Daltroff S
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
IEB-79-14, NUDOCS 8001240366
Download: ML19291C409 (2)


Text

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N PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET P.O. BOX 8699 PHILADELPHI A. PA.19101 SHIELOS L DALTROFF ELactre c pm c som D e ce mb e r 20, 1979 Re:

Docket Nos.:

50-277 50-278 IE Bulletin 79-14 Mr. Boyce H. Grier, Director Office of Inspection & Enforcement Region I United States Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406

Dear Mr. Grier:

This letter updates the status of Bulletin 79-14 concerning the review of seismic analyses for ' a s -b uilt ' safety related piping.

The inspection, measurement, and review of all Unit 3 safety-related piping has been completed.

The inspection and measurement of all Unit 2 accessible piping has been c omp le t e d.

The review of the Unit 2 piping has been completed with the following exception.

The review of 2600 feet of Unit 2 accessible piping is dependent upon the inspection and measurement of associated inaccessible piping and will be completed during the Spring, 1980, refueling outage.

Noncomf ormances, as they are identified, are being evaluated by our architect engineer in conjunction with our Engineering Department.

Of the nonconformances identified thus far, only one has been judged to affect the operability of a system.

This nonconformance, found on October 19, 19 79 during the Unit 3 refueling outage, was res olved prior to Unit 3 returning to service.

Analytical engineering evaluations (seismic analyses) are being performed on the remaining nonconf ormances and the results will be included in the final rep ort.

80012403 66 1 7 9 5 -3 fl

,o Mr. B oyce H. Grier Page 2 The inspection, measurement, and review of Unit 2 inaccessible piping will be completed during the Spring, 1980 refueling outage.

The results of the rev.f.ew will be included in the final rep ort.

Very truly yours,

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cc:

United States Nuclear Regulatory Commission Office of Inspection and Enforcement Division of Reactor Operations Inspection Washington, DC 20555 1795 $T7