ML16341G541

Advises That Responses to Generic Ltr 91-11 Meets Reporting Requirements

ML16341G541
Person / Time
Site:	Diablo Canyon
Issue date:	04/29/1992
From:	Rood H Office of Nuclear Reactor Regulation
To:	Rueger G PACIFIC GAS & ELECTRIC CO.
References
GL-91-11, TAC-M82404, TAC-M82405, NUDOCS 9205070103
Download: ML16341G541 (6)

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April 29, 1992 Docket Nos.

50-275 and 50-323 Hr. Gregory H. Rueger Senior Vice President and General Manager Nuclear Power Generation Business Unit Pacific Gas and Electric Company 77 Beale Street, Room 1451 San Francisco, California 94106

SUBJECT:

CLOSEOUT OF STAFF ACTIVITIES ON GENERIC LETTER 91-11 FOR DIABLO CANYON (TAC NOS.

H82404 AND M82405)

On July 18, 1991, the NRC staff issued Generic Letter (GL) 91-11, "Resolution of Generic Issue 48,

'LCO's for Class lE Vital Instrument Buses,'nd 49,

'nterlocks and LCO's for Class IE Tie Breakers,'ursuant to 10 CFR 50.54(f)."

The GL requested that licensees certify that procedures exist

" which contain time limitations and surveillance requirements for vital instrument buses (VIB), inverters or other onsite power sources for VIB, and tie breakers.

If procedures do not exist, a justification demonstrating the reasons why the controls are not needed is requested.

By letter DCL-92-023 dated January 30,

1992, you responded to the GL, indicating that procedures for time limitations and surveillance requirements are in place at Diablo Canyon Unit Nos.

1 and 2.

The NRC staff has reviewed your response to the GL and finds that it meets the reporting requirements set forth in GL 91-11.

This completes the staff effort on the GL for Diablo Canyon and closes TAC Nos.

M82404 and M82405.

Sincerely, Original Signed By:

Harry Rood, Senior Project Manager Project Directorate V

Division of Reactor Projects III/IV/V Office of Nuclear Reactor Regulation cc:

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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555 April 29, 1992 Docket Nos.

50-275 and 50-323 Hr. Gregory M. Rueger Senior Vice President and General Manager Nuclear Power Generation Business Unit Pacific Gas and Electric Company 77 Beale Street, Room 1451 San Francisco, California 94106

SUBJECT:

CLOSEOUT OF STAFF ACTIVITIES ON GENERIC LETTER 91-11 FOR DIABLO CANYON (TAC NOS.

H82404 AND H82405)

On July 18, 1991, the NRC staff issued Generic Letter (GL) 91-11, "Resolution of Generic Issue 48,

'LCO's for Class 1E Vital Instrument Buses,'nd 49,

'nterlocks and LCO's for Class 1E Tie Breakers,'ursuant to 10 CFR 50.54(f)."

The GL requested that licensees certify that procedures exist which contain time limitations and surveillance requirements for vital instrument buses (VIB), inverters or other onsite power sources for VIB, and tie breakers.

If procedures do not exist, a justification demonstrating the reasons why the controls are not needed is requested.

By letter DCL-92-023 dated January 30,

1992, you responded to the GL, indicating that procedures for time limitations and surveillance requirements are'n place at Diablo Canyon Unit Nos.

1 and 2.

The NRC staff has reviewed your response to the GL and finds that it meets the reporting requirements set forth in GL 91-11.

This completes the staff effort on the GL for Diablo Canyon and closes TAC Nos.

M82404 and H82405.

Sincerely, Harry Roo

, Senior Project Manager Project Directorate V

Division of Reactor Projects III/IV/V Office of Nuclear Reactor Regulation cc:

See next page

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Mr. Gregory M. Rueger Pacific Gas and Electric Company Diablo Canyon CC:

NRC Resident Inspector Diablo Canyon Nuclear Power Plant c/o U.S. Nuclear Regulatory Commission P. 0.

Box 369 Avila Beach, California 93424 Mr. Hank Kocal Radiologic Health Branch State Department of Health Services Post Office Box 942732 Sacramento, California 94234 Dr. Richard Ferguson, Energy Chair Sierra Club California 6715 Rocky Canyon Creston, California 93432 Ms. Sandra A. Silver Mothers for Peace 660 Granite Creek Road Santa Cruz, California 95065 Ms. Jacquelyn C. Wheeler 3303 Barranca Court San Luis Obispo, California 93401 Managing Editor The County Telegram Tribune 1321 Johnson Avenue.

P. 0.

Box 112 San Luis Obispo, California 93406 Chairman San Luis Obispo County Board of Supervisors Room 370 County Government Center San Luis Obispo, California 93408 Christopher J.

Warner, Esq.

Pacific Gas

& Electric Company Post Office Box 7442 San Francisco, California 94120 Regional Adminstrator, Region V

U.S. Nuclear Regulatory Commission 1450 Maria Lane, Suite 210 Walnut Creek, California 94596 Mr. Peter H. Kaufman Deputy Attorney General State of California 110 West A Street, Suite 700 San Diego, California 92101 Ms. Nancy Culver 192 Luneta Street San Luis Obispo, California 93401 Michael M. Strumwasser, Esq.

Special Assistant Attorney General State of California Department of Justice 3580 Wilshire Boulevard, Room 800 Los Angeles, California 90010

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