05000316/LER-1979-039, Forwards LER 79-039/03L-0

Forwards LER 79-039/03L-0

ML17318A465
Person / Time
Site:	Cook
Issue date:	11/28/1979
From:	Shaller D INDIANA MICHIGAN POWER CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17318A467	List: 05000316/LER-1979-039, Forwards LER 79-039/03L-0 05000316/LER-1979-039-03, /03L-0:on 791031,containment Air Particulate Detector Tripped on Low Flow While Plant Was in Mode 6. Caused by Flow Trip Switch in Nonvertical Position.Proper Air Particulate Flow Established
References
NUDOCS 7912040375
Download: ML17318A465 (6)

LER-1979-039, Forwards LER 79-039/03L-0

Event date:
Report date:
3161979039R00 - NRC Website

text

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INDIANA8 MICHIGANPOI/VER COMPANY DONALD C. COOK NUCLEAR PLANT P.O. Box 458, Bridgman, Michigan 49106 November 28, 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. Kep'pier:

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

RO 79-039/03L-O.

Sincerely, D.V. Shaller Plant Manager

/bab CC:

J.E.

Dolan R.S.

Hunter R.W. Jurgensen R.F. Kroeger R.W. Kilburn R.J. Vollen BPI R.E. Masse RO:III R.C. Callen MPSC P.W. Steketee, Es R. Walsh, Esq.

G. Charnoff, Esq G. Olson J.M. Hennigan PNSRC J.F. Stietzel E.L. Townley Dir., IE (30 copies)

Dir., MIPC (3 copies) tiO~ >0'"'ao>

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CLEAR REGULATORY COMMISSION NRC FORM 366 LICENSEE EVENT REPORT

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. CPNTROL BLOCK:

Q1 (PLEASE PRINT OR TYPE ALLREQUIRED INFORMATION)

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1 104~04 7

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LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 CON'T 0

1 REPDRT ~L~B 0

5 0

0 0

3 1

6 Q7 1

0 3

1 7

9 QB 1

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8 60 61 DOCKET NUMBER 68 59 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES 010 THE CONTAINMENT AIR PARTICULATE DETECTOR (R 1 1 )

TRIPPED ON LOW

~03 FLOW WHILE THE PLANT WAS IN MODE 6 ~

THIS CONDITION WAS NON-4 CONSERVATIVE WITH RESPECT TO T.S. 3.9.9.

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IN A NON VERTICAL POSITION.

THE SWITCH WAS RETURNED TO ITS NORMAL POSITION AND PROPER APD FLOW WAS ESTABLISHED.

THE CAUSE OF THE FLOW SWITCH MOVEMENT FROM THE VERTICAL POSITION HAS NOT BEEN 3

DETERMINED.

SEE ATTACHED SUPPLEMENT.

4 SYSTEM

CAUSE

CAUSE COMP.

VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SU&CODE

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10 11 '2 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION 21 22 23 24 26 27 28 29 30 31 32 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRDP PRIME COMP.

COMPONENT TAKEN ACTION ON PLANT METHOD HOURS Q22 SUBMITTED FORM SUB.

SUPPLIER MANUFACTURER

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0 Qs 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS O27

~10 THE CAUSE OF THE LOW FLOW TRIP WAS FOUND TO BE THE FLOW TRIP SWITCH 7

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@vvsssvAsus 0 45 FACILITY METHOD OF B 0 ~05 00 L~IQ31 ERA~

MgyegmRIPTION Q32 7

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10 12 13 44 45 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITY

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LOCATIONOF RELEASE Q z

Q33 ZQ34 NA NA 7

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10 11 44 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION Q30

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11 12 13 PERSONNEL INJURIES 80 80 80 80 7

8 9

11 12 LOSS OF OR DAMAGETO FACILITY 43 TYPE

DESCRIPTION

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10 PUBLICITY ISSUED DESCRIPTIONQ o

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9 10 NAME OF PRFPARER NRC USE ONLY 68 69 616-465-5901 80 80 ONO 80 o

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SUPPLEMENT TO LER 0 79-039/03L-0 SUPPLEMENT TO CAUSE DESCRIPTION A SPIKE IN THE R-11 CHANNEL,CAUSED BY THE LOW FLOW ALARMi INITIATEDA CONTAINMENT ISOLATION~

THIS CON TAINMENT ISOLATION WAS NOT RESET UNTXL R-ll WAS DECLARED OPERABLE i WHICH COMPLIES WXTH THE ACTION REQUIREMENT OF T.S. 3.9.9.

NO FURTHER ACTION IS PLANNED.

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