ML17326A280

Forwards LERs 79-031/03L-0 & 79-032/03L-0

ML17326A280
Person / Time
Site:	Cook
Issue date:	10/10/1979
From:	Shaller D INDIANA MICHIGAN POWER CO.
To:	Keppler L NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17326A281	List: 05000316/LER-1979-031-03, /03L-0:on 790912,elevation Containmment Airlock Interlock at 612 Ft Did Not Prevent Opening of Outer Door W/Inner Door Open.Caused by Flexing of One Interlock Support Bracket.Gusset Added to Bracket 05000316/LER-1979-032-03, /03L-0:on 790911,during Surveillance Test,High Pressure Reactor Trip Bistable Found to Trip at Setpoint Corresponding to 2417 Psig.Caused by Defective Bistable. Bistable Replaced ML17326A280
References
NUDOCS 7910160500
Download: ML17326A280 (1)

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DONALD C. COOK NUCLEAR PLANT P.O. Box 458, Bridgman, Michigan 49106 October 10, 1979 Mr. J.G. Keppler, Regional Director Office of Inspection and Enforcement United States Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, IL 60137 Operating License DPR-74 Docket No. 50-316

Dear Mr. Keppler:

Pursuant to the requirements of the Appendix A Technical Specifications the following report/s are submitted:

RO 79-031/03L-0 RO 79-032/03L-O.

Sincerely, D.V. Shaller Plant Manager

/bab cc:

J.E.

Dolan R.W. Jurgensen R.F. Kroeger R. Kilburn R.J. Vollen BPI R.E.

Masse RO:III R.C. Callen MPSC P.W. Steketee, Esq.

R. Walsh, Esq.

G. Charnoff, Esq.

J.M. Hennigan PNSRC J.F. Stietzel E.L. Townley Dir., IE (30:copies)

Dir., MIPC (3 copies) 0g g6 1979