ML17055E576
| ML17055E576 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 03/13/1989 |
| From: | Russell W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML17055E575 | List: |
| References | |
| 50-410-88-21, EA-89-004, EA-89-4, NUDOCS 8903230221 | |
| Download: ML17055E576 (4) | |
Text
NOTICE OF VIOLATION Niagara Mohawk Power Corporation Nine Mile Point Unit 2 Docket No.
50-410 License No.
NPF-69 EA 89-04 During an inspection conducted on December 3-21,
- 1988, NRC inspectors reviewed the circumstances associated with a violation of a technical specification limiting condition for operation which was identified by the licensee and reported to the NRC.
During the inspection, another violation of NRC require-ments was identified.
In accordance with the "General Statement of Policy and Procedure for NRC Enforcement Action," 10 CFR Part 2, Appendix C (Enforcement Policy) (1988),
the violations are set forth below:
A.
Technical Specification Limiting Condition for Operation (LCO) 3.3.3
- requires, in part, that the Emergency Core Cooling System (ECCS) actuation instrumentation shall be operable as shown in Table 3.3.3-1.
Table 3.3.3-1 requires, in part, two operable Automatic Depressurization System (ADS) trip channels per trip system whenever the reactor is in Operational Conditions 1, 2, and 3.
Technical Specification LCO Action Statement 3.3.3.c-l requires that with either ADS trip system inoperable, the inoperable ADS trip system must be restored to operable status within 7 days providing High Pressure Core Spray System and Reactor Core Isolation Cooling System are operable, or the plant shall be placed in HOT SHUTDOWN within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
Contrary to the above, between November 1986 (initial fuel load) and December 8, 1988, while the reactor was, at times, in Operational Conditions 1, 2, or 3, the ADS Division I trip system was inoperable due to a wiring error in the logic circuitry, and the reactor was not placed in the hot shutdown condition.
B.
10 CFR 50, Appendix B, Criterion NVI, requires that measures be established to assure that conditions adverse to quality are promptly identified, and the cause determined and corrected.
Niagara Mohawk Power Corporation guality Assurance Topical Report, Section 16, Corrective Action, also requires that for conditions adverse to quality, appropriate corrective action shall be implemented in a timely manner.
Contrary to the above, during a modification to the logic circuitry of one of the ADS trip systems in 1985, a wiring error was made that resulted in one of the systems being inoperable (as described in Violation A above),
and prior to December 8,
1988, this condition adverse to quality,was not identified and corrected, notwithstanding the performance of (1) the preoperational test of the trip system logic circuitry in May 1986, as well as (2) two surveillance tests of the logic circuitry in July 1986 and May 1988.
These violations are categorized in the aggregate as a Severity Level III problem.
Pursuant to the provisions of 10 CFR 2.201, Niagara Mohawk Power Corporation is hereby required to submit a written statement or explanation to the Director,,
Office of Enforcement, U.S. Nuclear Regulatory Commission, within 30 days of 0005.0.0 S903230221 890313 POR ADOCK 05000410 0
POC OFFICIAL RECORD COPY CP PKG NINE MILE EA 89-04-A-03/10/89
Notice of Violation the date of this Notice.
This reply should be clearly marked as a "Reply to a Notice of Violation" and should include for each alleged violation:
(1) admission or denial of the alleged violation, (2) the reasons for the violation if admitted, (3) the corrective steps that have been taken and the results
- achieved, (4) the corrective steps that will be taken to avoid further violations, and (5) the date when full compliance will be achieved.
If an adequate reply is not received within the time specified in this Notice, an order may be issued to show cause why the license should not be modified, suspended, or revoked or why such other action as may be proper should not be taken.
Consideration may be given to extending the response time for good cause shown.
FOR THE NUCLEAR REGULATORY COMMISSION 0.".'."J.~~.l 8!:synod By
~
r,t
.;~~~
py William T. Russell Regional Administrator Oated at King qf Prussia, Pennsylvania this day of/g)'hMarch 1989 0006.0.0 OFFICIAL RECORO COPY CP PKG NINE MILE EA 89-04-A "
03/10/89
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