ML20236N536

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Forwards 10CFR50.59 Annual Rept of Changes,Tests & Experiments 860323-870322. Rept Same as Reporting Interval of Annual FSAR Update Rev
ML20236N536
Person / Time
Site: Diablo Canyon  Pacific Gas & Electric icon.png
Issue date: 11/09/1987
From: Shiffer J
PACIFIC GAS & ELECTRIC CO.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML20236N540 List:
References
DCL-87-270, NUDOCS 8711160218
Download: ML20236N536 (2)


Text

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PACIFIC GAS AND E LE C T RI C C O M PANY  ;

I FGr6 -t- 77 BEALE STREET . S AN FRANCISCO, C AUFORNIA 94106 . (415)781 4211 . Twx 910 372-6587 NEEI" htJCLEAR POW,4 Gmt#Af TON November 9, 1987 PG&E Letter No.: DCL-87-270 j U. S. Nuclear Regulatory Commission i ATTN: Document Control Desk j Hashington, D.C. 20555 j

-Re: Docket No. 50-275, OL-DPR-80 Docket No. 50-323, OL-DPR-82 Diablo Canyon Units 1 and 2 10 CFR 50.59 Annual Report of Changes, Tests, and Experiments )

March 23, 1986 - March 22, 1987 1 Gentlemen:

Pursuant to 10 CFR 50.59, enclosed is the Annual Report of Changes, Tests, and Experiments for Diablo Canyon Power Plant (DCPP) Units 1 and 2 for the reporting interval of March 23, 1986, to March 22, 1987. This is the same as j the reporting interval of the annual Final Safety Analysis Report (FSAR) )

Update revision.

Licensees are allowed by 10 CFR 50.59 to make changes in the facility as i described in the FSAR, make changes in procedures as described in the FSAR, j and conduct tests and experiments not described in the FSAR without prior NRC  !

approval, provided that the changes, tests, or experiments do not involve changes in the Technical Specifications or unreviewed safety questions. Such changes are required to be reported on an annual basis by 10 CFR 50.59(b)(2).

Proposed facility changes, procedure changes, tests, or experiments that are determined to involve unreviewed safety questions or changes to the Technical Specifications are submitted separately to the NRC for prior approval under I the provisions of 10 CFR 50.90.

Changes in the Facility As Described in the FSAR. Attachment 1 to the enclosed Annual Report provides a brief description of the 10 F2 50.59 facility design changes, including a summary of each safety evaluation. Each change was completed and accepted by the plant staff.

None of the design changes involve an unreviewed safety qucstic, or a change to the DCPP Technical Specifications, as determined by the Plar : Staff Review Committee (PSRC). The changes do not (a) increase the probability or consequences of an accident or malfunction of equipment important to safety as previously analyzed in the FSAR; (b) create the possibility of an accident or malfunction of equipment not previously analyzed in the FSAR; or (c) reduce the margin of safety as defined in the bases of the Technical Specifications.

8711160218 871109 PDR R

ADOCK 05000275 PDR 4

]

i

Document Control Desk PG&E-Letter No..DCL-87-270 November 9, 1987 Page 2 Design changes resulting in minor' changes to FSAR Update figures (e.g., piping and instrumentation drawings and schemutics) that do not impact the safety of operations are not included in the Annual Report.

Chanaes in' Procedures As Described in the FSAR. . Attachment 2 to the enclosed L Annual Report provides a brief description of the 10 CFR 50.59 procedure changes, inc'luding a summary of .the safety evaluation. None of the procedure changes involve an unreviewed safety question or a change to the DCPP Technical Specifications, as determined by'the PSRC, Tests and Experiments Not Described in the FSAR. There were no tests or experiments. conducted that are not described in the FSAR Update and that impact the safety of operations.

Kindly acknowledge receipt of this material on the enclosed copy of this letter and return it in the enclosed addressed envelope.

Sincerely, Enclosure I/

cc: J. B. Martin M. M. Mendonca P. P. Narbut B. Norton B. H. Vogler CPUC Diablo Distribution 1667S/0052K/MLM/1392 i

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