ML20087H664

Interim Deficiency Rept Re Failure of GE Type AKR-30 Circuit Breakers.Initially Reported on 831223.Breakers Reinspected. Next Rept Will Be Submitted by 840514

ML20087H664
Person / Time
Site:	Hope Creek
Issue date:	02/24/1984
From:	Martin T Public Service Enterprise Group
To:	Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
NUDOCS 8403210118
Download: ML20087H664 (2)

Text

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i uThorras J. Martin Public Service Electric and Gas Company 80 Park Plaza Newark, N.J. 07101 201/4304316

- Vice PresWent '

Engineering and Construction February 24, 1984 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

Dear Dr. Murley:

JCONSTRUCTION DEFICIENCY GE TYPE AKR-30 CIRCUIT BREAKERS HOPE CREEK GENERATING STATION On December 23, 1983, a verbal report was made to Region I, Office'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, 1984,'an interim report was sent to your office. 'The following supplemental information is provided in accordance with 10CFR50.55(e).

During on-site rework of the subject AKR-30 circuit breakers, performed under the guidance of General Electric representatives, additional fabrication deficiencies in the breakers were identified, including:

1. Loose buffer assembly hardware

2. Short motor spacers

3. Broken solder joints

'.. 4. Defective spring charging motor b;: 5. Broken driving pawl shear pin l4 6. Improperly installed cut off switch plate K. 7. Cut-off and closing circuit switches becoming loose in

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Dr.:T. E. Murley-2 2/24/84 Consequently, General Electric has agreed tu) ' completely reinspect all~ Hope. Creek AKR-30 circuit breakers in accordance with detailed

!. inspection procedures reviewed by Public Service and our Architect /

Sngineer, Bechtel-Power Corporation.

We'have also instructed'Bechtel to press General Electric to identify the cause of the breakdown in their quality program that-permitted these_ fabrication deficiencies.to leave their shop.

-- An additional interim report will be provided by May 14, 1984, if

.the final' report is not available' prior to that date.

Very truly yours,

/ /

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cc: Office of Inspection and Enforcement Division of Reactor Construction Inspection F  : Washington, D. C. 20555 h

NRC Resident Inspector - Hope Creek P. 0. Box 241 Hancocks: Bridge, NJ 08038 i'

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l. Records Center-

[- Institute of Nuclear Power Operations

[ .1100~ Circle-75 Parkway, Suite 1500 Atlanta, GA 30339 k'

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