ML20137E669

Forwards LERs 85-031-00,85-032-00,85-033-00 & 85-034-00

ML20137E669
Person / Time
Site:	Cook
Issue date:	11/21/1985
From:	Will Smith INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF ADMINISTRATION (ADM)
Shared Package
ML20137E676	List: 05000316/LER-1985-031-01, :on 851027,ESF Actuated as Result of Lower Containment Airborne Monitor Particulate Channel Train a High Alarm.Caused by Monitors Trending Upward.Setpoints Readjusted 05000316/LER-1985-032-01, :on 851022,upper Containment Area Radiation Monitor Failed,Resulting in ESF Actuation Signal.Caused by Failure of Two Internal Electronic Modules.Failed Modules Replaced & Monitor Declared Operable 05000316/LER-1985-033-01, :on 851023,lower Containment Airborne Monitor high-range Noble Gas Channel Gave Spurious High Alarm Signal Resulting in ESF Actuation Signal.Caused by Software Errors. Errors Being Evaluated by Mfg 05000316/LER-1985-034-01, :on 851024 & 30,high Alarms Received on Lower Containment Airborne Particulate Radiation Monitor Train B, Resulting in ESF Actuation Signal.Caused by Monitor Trending Upward.Setpoints Readjusted ML20137E669
References
NUDOCS 8511270292
Download: ML20137E669 (1)

Text

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/, e k Q=;)ING MA & MICHIGAN ELECTRIC COMPANY DONALD C. COOK NUCLEAR PLANT P.O. Box 458, Bridgman, Michigan 49106 (616) 465-5901 November 21, 1985 United States Nuclear Regulatory Commission Document Control Desk Washington, D.C.

20555 Operating License DPR-74 Docket No. 50-316 Document Control Manager:

In accordance with the criteria established by 10CFR50.73 entitled Licensee Event Reporting System, the following report /s are being submitted:

RO 85-31-0 RO 85-32-0 RO 85-33-0 RO 85-34-0 Sincerely, ggph, ' ^

W.G. Smi Jr.

Plant Manager

/cbm Attachment cc:

John E. Dolan J.G. Keppler, RO:III M.P. Alexich R.F. Kroeger H.B. Brugger R.W. Jurgensen NRC Resident Inspector R.C. Callen, MPSC' G. Charnoff, Esq.

D. Hahn 2 0292 % h 16 INPO ADOCK pDR PNSRC J.F. Stietzel g

A.A. Blind Dottie Sherman, ANI Library

).

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