DCL-12-091, Withdrawal of License Amendment Request 11-06, Revision to Technical Specification 3.3.5. Loss of Power (LOP) Diesel Generator (DG) Start Instrumentation.

Withdrawal of License Amendment Request 11-06, Revision to Technical Specification 3.3.5. Loss of Power (LOP) Diesel Generator (DG) Start Instrumentation.

ML12272A098
Person / Time
Site:	Diablo Canyon
Issue date:	09/27/2012
From:	Welsch J Pacific Gas & Electric Co
To:	Office of Nuclear Reactor Regulation, Document Control Desk
References
DCL-12-091
Download: ML12272A098 (2)

Text

Pacific Gas and Electric Company James M. Welsch Diablo Canyon Power Plant Station Director Mail Code 104/5/502 P. O. Box 56 Avila Beach, CA 93424 September 27, 2012 805.545.3242 Internal: 691.3242 Fax: 805.545.4234 PG&E Letter DCL-12-091 Internet: JMW1@pge.com U.S. Nuclear Regulatory Commission 10 CFR 50.90 ATTN: Document Control Desk Washington, D.C. 20555-0001 Docket No. 50-275, OL-DPR-80 Docket No. 50-323, OL-DPR-82 Diablo Canyon Units 1 and 2 Withdrawal of License Amendment Request 11-06 Revision to Technical Specification 3.3.5. "Loss of Power (LOP) Diesel Generator (DG) Start Instrumentation" Pursuant to 10 CFR 2.107, Pacific Gas and Electric Company (PG&E) hereby withdraws License Amendment Request (LAR) 11-06, "Revision to Technical Specification 3.3.5, 'Loss of Power (LOP) Diesel Generator (DG) Start Instrumentation,'" dated October 24,2011.

Discrepancies with the current licensing basis and the control room dose analysis of record (AOR) associated with this LAR were identified that would require additional analysis and a revision to the AOR that is projected to be available in the first quarter of 2013 (greater than 1 year from the original LAR submittal date). PG&E intends to resolve these discrepancies by obtaining NRC approval of proposed changes to the control room dose AOR.

PG&E is making the following regulatory commitment (as defined by NEI 99-04) in this letter: PG&E will resubmit an LAR to address the issues identified in LAR 11-06, with an additional request for approval of a proposed revision to the control room dose AOR, within 60 days of the completion of the revised control room dose AOR.

If you have any questions or require additional information, please contact Mr. Tom Baldwin at (805) 545-4720.

Sincerely,

--Ii -~ /Yl tAlt.L J~~-M~ Welsch Interim Site Vice President A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway

• Comanche Peak

• Diablo Canyon

• Palo Verde

• San Onofre

• South Texas Project

• Wolf Creek

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Document Control Desk Septem ber 27, 2012

& Page 2 PG&E Letter DCL-12-091 pns3/6984/N50353334 cc: Elmo E. Collins, NRC Region IV Dean H. Overland, NRC Senior Resident Inspector Gonzalo L. Perez, California Dept of Public Health Joseph M. Sebrosky, NRR Project Manager Diablo Distribution A member of the STARS (Strateg ic Teaming and Resource Sharing) Alliance Callaway

• Comanche Peak

• Diablo Canyon

• Palo Verde

• San Onofre

• South Texas Project

• Wolf Creek