IR 05000275/1996023
| ML16343A470 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 01/17/1997 |
| From: | Dyer J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Rueger G PACIFIC GAS & ELECTRIC CO. |
| Shared Package | |
| ML16342D521 | List: |
| References | |
| EA-96-501, NUDOCS 9701280369 | |
| Download: ML16343A470 (8) | |
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EA 96-501-UNITEDSTATES NUCLEAR REGULATORYCOMMISSION
REGION IV
611 RYAN PLAZADRIVE, SUITE 400
SUBJECT:
NRC INSPECTION REPORT 50-275/96023; 50-323/96023 AND NOTICE OF VIOLATION
Dear Mr. Rueger:
An NRC inspection was conducted from November 10 through December 21, 1996, at your Diablo Canyon Nuclear Power Plant, Units 1 and 2 reactor facilities. The enclosed report presents the scope and results of that inspection.
During the inspection period, your conduct of activities at the Diablo Canyon facility was generally characterized by safety conscious operations.
Plant management's reaction to 4kV first level undervoltage relay operability concerns was decisive and demonstrated appropriate concern for both safety and compliance with Technical Specification requirements.
Four violations were identified during the inspection period.
The first involved the failure to follow procedural requirements for the control of temporary modifications.
The second violation involved the failure to document loose fasteners installed on 480V switchgear as required by procedure.
The third violation involved the failure to take corrective actions for repeatedly exceeding the specified maximum allowed time delay in Technical Specifications for the 4kV first level undervoltage relay.
The fourth violation involved missed reviews by the Plant Staff Review Committee of 10 CFR 50.59 safety evaluations as required by the Technical Specifications.
While all of the violations are of concern, the violation associated with the Plant Staff Review Committee missed reviews of 10 CFR 50.59 evaluations is of particular concern because it represents a failure of a barrier that you had established to assure that any potential unreviewed safety questions are identified.
The violations are cited in the enclosed Notice of Violation (Notice) and the circumstances surrounding the violations are described in detail in the enclosed report.
Please note that you are required to respond to this letter and should follow the instructions specified in the enclosed Notice when preparing your response.
The NRC will use your response, in part, to determine 9701280369 970117 PDR ADQCK 05000275
C~
Pacific Gas and Electric Company-2-whether further enforcement action is necessary to ensure compliaace with regulatory requirements.
In addition to these cited violations, another violation was identified involving the inoperability of the component cooling water system under certain degraded voltage conditions.
As discussed in more detail in Section E8.1 of the inspection report, PG5E discovered this condition, which was not likely to be discovered as the result of routine surveillance or quality assurance activities, and took prompt and comprehensive corrective action.
In accordance with the provisions of Section VII.B.3 of the "General Statement of Policy and Procedures for NRC Enforcement Actions," NUREG-1600, and after consultation with the Director, Office of Enforcement, I have been authorized to exercise enforcement discretion in this case and not issue a Notice of Violation for this violation.
In accordance with 10 CFR 2.790 of the NRC's "Rules of Practice,"
a copy of this letter, its enclosure(s),
and your response will be placed in the NRC Public Document Room (PDR). To the extent possible, your response should not include any personal privacy, proprietary, or safeguards information so that it can be placed in the PDR without redaction.
Should you have any questions concerning this inspection, we will be pleased to discuss them with you.
Sincerely, J. E. Dyer, Director Division of Reactor Projects Docket Nos.: 50-275 50-323 License Nos.:
DPR-80 DPR-82 Enclosures:
Notice of Violation Inspection Report 50-275/96023; 50-323/96023 cc w/enclosures:
Dr. Richard Ferguson Energy Chair Sierra Club California 1100 lith Street, Suite 311 Sacramento, California 95814
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Pacific Gas and Electric Company-3-Ms. Nancy Culver..
San Luis Obispo Mothers for Peace P.O. Box 164 Pismo Beach, California 93448 Chairman San Luis Obispo County Board of Supervisors Room 370 County Government Center San Luis Obispo, California 93408 Mr. Truman BurnsfMr. Robert Kinosian California Public Utilities Commission 505 Van Ness, Rm. 4102 San Francisco, California 94102 Robert R. Wellington, Esq.
Legal Counsel Diablo Canyon Independent Safety Committee 857 Cass Street, Suite D Monterey, California 93940 Mr. Steve Hsu Radiologic Health Branch State Department of Health Services P.O. Box 942732 Sacramento, California 94234 Christopher J. Warner, Esq.
Pacific Gas and Electric Company P.O. Box 7442 San Francisco, California 94120 Robert P. Powers, Vice President and Plant Manager Diablo Canyon Power Plant P.O. Box 56 Avila Beach, California 93424 Managing Editor Telegram-Tribune 1321 Johnson Avenue P.O. Box 112 San Luis Obispo, California 93406
Pacific Gas and Electric Company E-Mail report to D. Nelson (DJN)
E-Mail report ttt NRR Event Tracking System (IPAS)
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L. J. Callan DRP Director Branch Chief (DRP/E, WCFO)
Senior Project Inspector (DRP/E, WCFO)
Branch Chief (DRP/TSS)
Leah Tremper (OC/LFDCB, MS: TWFN 9E10)
Resident Inspector DRS-PSB MIS System RIV File M. Hammond (PAO, WCFO)
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