ML17157A522
| ML17157A522 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 01/14/1991 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML17157A521 | List: |
| References | |
| 50-387-90-200, 50-388-90-200, NUDOCS 9101230043 | |
| Download: ML17157A522 (3) | |
Text
APPENDIX A NOTICE OF VIOLATION.
Pennsylvania Power and Light. Company Susquehanna Steam Electric Station Units' and 2
Docket Nos.
50-387 50-388 License
- Nos, NPF-14 NPF-22 As a result of the inspection conducted on August 13 through 17 and August 27
'through 31,
- 1990, and in accordance with the "General Statement of Policy and Procedure for NRC Enforcement Actions,"
10CFR Part 2, Appendix C (Enforcement Policy), the following violations were identified:
l.
10CFR 50, Appendix B, Criterion XII, states in part, "Measures shall be established to assure that...instruments...are properly controlled, calibrated, and adjusted at specified periods to maintain accuracy within necessary limits."
Contrary to the above, several instruments were not properly calibrated and adjusted at specified periods to maintain accuracy within necessary tolerance acceptance limits.
In addition, one instrument was not properly controlled to ensure that it would operate within the manufacturer's specified limits.
Specifically:
~
Bus 1A/1B 27A UV relays's-found settings were found to be +2.9% and
+3.3%, respectively, which are above the instrument set point tolerance acceptance criteria of + 2%.
CS pump lA/1B and RHR Pump lA 50/51 relays's-found settings were found to be +4.6%,
2.8% and 6.3% respectively, which are above the set point tolerance acceptance criteria of a 2%.
Timers 62-27-AIX1-20201, 62B1"20102, and 62B1-20202 as-found settings were found to be -7.5%,
-21% and -21%, respectively, which are above the set point tolerance acceptance criteria of t 5%.
Emergency Diesel Generators'vercurient relay (51) pick-up values were found to have drifted from 25% to 250% of their last calibrated set points.
The set point tolerance acceptance criteria is + 2%.
~
Undervoltage relay's (27A installed in Unit 2,,4160 Vac 20204) dropout setting was outside the manufacturer's specified range.
This is a Severity Level IV Violation (Supplement I) 9iOi230043 9i0ii4 PDR ADOCN, 05000387 8
Appendix A 2.
10CFR 50, Appendix B, Criterion XI states, in part, that testing shall be conducted in accordance with written test procedures which incorporate appropriate acceptance limits to assure that components will perform satisfactorily in service.
In addition, the test procedures shall include provisions for assuring that adequate test instrumentation is used.
Contrary to the above, the licensee tested dc safety-related circuit breakers in accordance with Maintenance Procedure MT-GE-006, "Load Center Breaker Relay Logic and Primary Current Testing," which did not provide specific information regarding over current trip testing or contain the appropriate acceptance limits for testing dc circuit breakers.
In addition, the dc circuit breakers were not tested with adequate test instrumentation in that they were tested with an ac test machine which was not representative of actual service conditions.
This is a Severity Level IV Violation (Supplement I).
Pursuant to the provisions of 10 CFR 2.201, Pennsylvania Power and Light Company is hereby required to submit a written statement or explanation to the U.S. Nuclear Regulatory Commission, ATTN:
Document Control Desk, Washington, D.C. 20555 with a copy to the Regional Administrator, Region I, and if applic-
- able, a copy to the NRC Resident Inspector, within thirty days of the date of the letter which transmitted this Notice of Violation (Notice).
This reply should be clearly marked as a "Reply to a Notice of Violation" and should include for each violation:
(1) the, reason for the Violation, or, if contested, the basis for disputing the violation; (2) the corrective steps that have been taken and the results achieved; (3) the corrective steps which will be taken to avoid further violations; and (4) 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.
Where good cause is shown, consideration will be given to extending this response'ime.
Under the authority of Section 182 of the Act, 42 U.S.C.
2232, this response shall be submitted under oath or affirmation.
OFFICIAL RECORD COPY MATEHW11/13/90 - 0003.1.0 01/09/91
'C