05000315/LER-1979-057, Forwards LER 79-057/03L-0

Forwards LER 79-057/03L-0

ML17318A462
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
ML17318A463	List: 05000315/LER-1979-057, Forwards LER 79-057/03L-0 05000315/LER-1979-057-03, /03L-0:on 791029,while Shifting to RHR,motor- Operated Containment Isolation Valve Failed to Open Completely & Would Not Close.Caused by Corrosion of Valve Operator Torque Switch Due to Condensation in Conduit
References
NUDOCS 7912040365
Download: ML17318A462 (2)

LER-1979-057, Forwards LER 79-057/03L-0

Event date:
Report date:
3151979057R00 - NRC Website

text

g4nemen NDIANA8, MICHIGANPDNER CDMP N DONALD C. COOK NUCLEAR PLANT P.O. Box 468, 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-58 Docket No. 50-315

Dear Mr. Keppler:

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

RO 79-057/03L-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, Esq.

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) goo>

5

U. S

'LEAR REGULATORY COMMISSION NRC FORM 366 I7 77)

<j LICENSEE EVENT REPORT 8

CONTROL BLOCK:

'I Qi (PLEASE PRINT OR TYPE ALLREQUIRED INFORMATION)

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D C

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QE 0

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0 0

Q3 4

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QE 7

8 9

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

~O1 RE'R

~L~B 0

5 0

0 0

3 1

5 Q7 1

0 2

9 7

9 QB 1

1 2

B 7

9 QB 7

8 SOURCE 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Qio WHILE SHIFTING TO RHR DURING A NORMAL COOLDOWNp MOTOR'PERATED CONTAINMENT ISOLATION VALVE ICM-111 (RHR DISCH.

TO COLD LEGS 2 AND 3),

FAILED TO OPEN

~o4 COMPLETELY AND THENWOULD NOT CLOSE.THI S CONST ITUTEDAN INOPERABLE VALVE PERT.S.3.6.3.1.THE ACTION REQUIREMENTSWERE COMPLIED WITH IN THAT THE UNIT WAS COOLED DOWN TO MODE 5 p 1

HOUR AND 25 MINUTES AFTER THE VALVE WAS 7

8 9

DECLARED INOPERABLE ~

PUBLIC HEALTH AND SAFETY WERE NOT JEOPARD IZED ~

THIS WAS THE FIRST OCCURRENCE OF THIS TYPE.

80 SYSTEM

CAUSE

CAUSE COMP.

VAI.VE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

~OB Ol E

On LJO73 V

A c

V 0

P 0'AO78

~IO78 7

8 9

10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION LERIRP EVENT YEAR REPORT NO.

CODE TYPE NO.

OET REPDRT MS)

U

~>>7 U~

M1 UC L]'0 21 22 23 24 26 27 28 29 30 31 32 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRDR PRIME COMP.

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

SUPPLIER MANUFACTURER Q1B~ Q19

~ZQ2o

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0 0

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+N Q23

~NO24

~N 025 L

2 0

0 026 33 34 35 36 37 40o 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 027 o

THE FAILURE WAS:CAUSED'Y CORROSION OF THE VALVE OPERATOR TOR UE SWIT H TO CONDENSATION IN THE CONTROL CABLE CONDUIT.

THE TORQUE SWITCH WAS REMOVED'I SASSEMBLEDi CLEANED'UBRICATED AND REINSTALLED.

ENDS OF CONDUITS WERE SEALED.

VALVE WAS TESTED SATISFACTORILY.

3 4

7 8

9 FACILITY STATUS

% POWER OTHER STATUS QBO 5

2B 29 NA 7

8 7

8 O

7 8

9 11 12 LOSS OF OR DAMAGE.TOFACILITYQ43 TYPE

DESCRIPTION

~ZQ42 9

10 PUBLICITY ISSUED DESCRIPTION~

~NQ 9

10 NA NAME OF PREPARER D

G.

WIZNER DO~00 OQ 7

8 9

10 12 44 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITYQ 6

~z Q33

~ZQ34 NA 7

8 9

10 11 44 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION Q39

~l7 ~00 0

Q37 ~ZQ38 NA 7

8 9

11 12 13 PERSONNEL INJURIES NUMBER DESCRIPTIONO41

~l8 L000

~0

~0 lQER NA 80 80 80 80 80 NRC USE ONLY 80 68 69 80 616-465-5901'XT.

398 0

PHONE:

L METHOD OF DISCOVERY DISCOVERY DESCRIPTION Q32

~AO31 OPERATOR OBSERVATION 45 48 LOCATIONOF RELEASE Q NA 45