ML20029C249
| ML20029C249 | |
| Person / Time | |
|---|---|
| Site: | McGuire, Mcguire  |
| Issue date: | 03/20/1991 |
| From: | Tuckman M DUKE POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9103270053 | |
| Download: ML20029C249 (3) | |
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DukeIbrur G.mtury AlS in utn s
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(701)L*:t 3 GI DUKE POWER March 20, 1991 U.S. Nuclear Regulatory Comminston ATTN:
Document Control Desk Washington, D.C. 20555
Subject:
Mc0uire Nucicar Station Docket Not. 50-369, 370 Inspection Report No. 369, 370/91-01 Reply to o notice of Violation Gentlement Pursuant to 10CFR 2.201, please find attached Duke Power Company's rouponse to Violation 369, 370/91-01-03 for McGuiro Nuclear Station.
Should there be any questions concerning this matter, contact L.J. Rudy at (704) 373-3413.
Very truly yours, I\\. h.
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M.S. Tuckman l
LJR/s r
Attachment l
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xc (W/ Attachment):
l-Mr. S.D. Ebneter Regional Administrator, Region 11 U.S. Nuclear Regulatory Commission 101 Marietta St., NW, Suite 2900-Atlanta, Georgia 30323 Mr. T.A. Reed l
U.S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation One White Flint North Mail Stop 9113 Washington, D.C. 20555 Mr. P.K. VanDoorn NHC Senior Resident Inspector F ",uito Nuclear Station i
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9103270053 91O320 Q
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PDR. ADOCK 05000369
MCCUIRE NUCLEAR STATION RESPONSE TO NOTICE OF VIOLATION Violation 369. 370/91-01-03 10CFR 50, Appendix D, Critorion XVI, states, in part, that measures shall be established to assure that conditions adverse to quality, such as failures, malfunctions, deficiencies, deviatic-. defective material l
and equipment, and nonconformances are promptly.
.ified and corrreted.
Contrary to the above, measures were not adequate to assure prompt cotrective action was taken in the correction of generic fuse installation problems originally identified in March 1989. Other cases of incorrectly installed fuses had been identified by the licensou sinco March 1989, but correctivo action had not been initiated for any generic cases as of February 2, 1991.
This la a Severity Level IV (Supplement 1) violation.
Hesponse to Violat.lon 1.
Reason for violation:
In March 1989, a Problem Investigation Report (PIR) was written which identified that incorrect fuse type and sizes were installed in panel 2SMTC-1. This PIR did not identify any Reneric problems with the installation and sizing of fuses.
In February 1990, another PIR was init.latnd when additional itse concerns were identified by Instrumentation and Electrical (IAE) personnel. Once again it was decided there weru not generic concerns raised by this PIR.
In May 1990, another PIR was initiated when it was discovered that the sequence to verify all fuses within each ATC cabinet covered by the Hatch 1989 PIR had been omitted. It was felt that the corrective actions for the first two PIR's would take care of the generic concerns and this PIR was closed.
In January 1991, a Self Initiated Technical Audit (SITA) was performed on the electrical distribution-system by an outside vendor. During this audit generic concerns were once again raised concerning fuses. At this time subsequent investigation showed that the corrective actions for the previous PIR's had failed to adequately address the Beneric problem with fuses.
A review showed a total of 25 cabinets were inspected which represented approximately 9% of the retal cabinets lastalled.
Based on this review,'McGuire continued to inspect the fuse cabinets as the fuses were scheduled to bc replaced. At the time of the SITA it was determined that the fura problem was greater than previously had been determined and McGuire decided to accolorate the inspections to pursue a complete "as built" inspection of both safety and non-safety related cabinets.
P 2.
Corrective actions taken and results achieved:
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I Station MES performed an evaluation to determine to what extent the generic issue of fuse installation had been addressed, The evaluation showed that a couplete review of all cabinets with fuses had not been performed.
McCuiro MES, IAE and site Design Engineering havu developed a program to inspect all cabinets containing fuses. Procedure IP/0/A/3190/03, HCC and Panel Board Preventive Maintenanco,'has been revised to include steps to check i
installed fuses against Bills of Materials. This check will be done as part of all cabinet preventive maintenance in the future.
3.
Correctivo actions to be taken to avoid further violations:
McCulte MES and IAE along with site Design Engineering began a program on February 15, 1991 to inspect all safety and non-safety related electrical cabinets containing fuses. As built conditions will be compared against llills of Materials. Any problems or concerns found during this inspention will be evaluated and corrective actions will be taken during the inspection whenever
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possible.
4.
Date when full compliance will be achieved:
McGuire will complete the inspection of the cabinets by the completion of the Unit 2 End of Cycle 7 outage. A schedule for tho completion of any remaining corrective actions will be developed at the end of the inspection, t
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