ML20093E928
| ML20093E928 | |
| Person / Time | |
|---|---|
| Site: | Hope Creek  |
| Issue date: | 09/14/1984 |
| From: | Martin T Public Service Enterprise Group |
| To: | Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| NUDOCS 8410120311 | |
| Download: ML20093E928 (2) | |
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Thomas J. Martin Public Service Electric and Gas Company 80 Park Plaza Newark, N.J. 07101 201/4304316 Vice President Eginavig aM Cbnstructim l
September 14, 1984 1
l Dr. Thomas E.
Murley, Administrator U.
S.
Nuclear Regulatory Commission Office of Inspection and Enforcement
-Region I 631 Park Avenue King of Prussia, Pennsylvania 19406 CO-Y
Dear Dr. Murley:
CONSTRUCTION DEFICIENCY GE TYPE AKR-30 CIRCUIT BREAKERS HOPE CREEK GENERATING STATION On December 23, 1983, a verbal report was made to Region I, Of fice of Inspection and Enforcement representative, Mr. W.
Cook, advising of a potentially significant construction deficiency concerning the failure of several General Electric AKR-30 circuit breakers to operate properly.
On January 18, February 24, and May 14, 1984, interim reports were sent to your office.
The following information is provided in accordance with 10CFR50.55 (e).
General Electric has completed their reinspection, testing, and rework as required, of the Hope Creek AKR-30 circuit breakers.
All of the circuit breakers have been returned to the jobsite.
During General Electric's reinspection program, one new potential deficiency has been identified in addition to those described in the above referenced correspondence.
Two (2) circuit breakers failed due to wear on the driving pawl bushing.
It was noted that the driving pawl employs a TUF-LOC bearing which consists of a teflon coated material.
Our Architect / Engineer and Constructor, Bechtel, has requested General Electric to evaluate this problem for the Hope Creek AKR-30. circuit breakers in light of NRC Information Notice 84-29 which addresses a similar G.E. breaker failure at the Diablo Canyon Nuclear Station.
S..
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f.1 1
Dr. T. E. Murley 9/14/84 Closure of this issue is pending final review by Bechtel and
~PSE&G Engineering Departments of General Electric's analyses of specific failures.
We anticipate providing you with a final report to include the requisite safety analysis by November 2, 1984.
Very truly yours, C
Office of Inspection and Enforcement Division of Reactor Construction Inspection Washington, D. C.
20555 NRC Resident Inspector - Hope Creek P.
O.
Box 241 Hancocks Bridge, NJ 08038 Records Center Institute of Nuclear Power Operations 1100 Circle 75 Parkway Suite 1500 Atlanta, GA 30339
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