05000315/LER-1979-051-03, /03L-0:on 790929,isolation Valves VCR-10 & 20 Would Not Close.Cause Not Stated.Valves Cycled & Began to Operate Properly.No Further Action Is Planned

/03L-0:on 790929,isolation Valves VCR-10 & 20 Would Not Close.Cause Not Stated.Valves Cycled & Began to Operate Properly.No Further Action Is Planned

ML17326A306
Person / Time
Site:	Cook
Issue date:	10/29/1979
From:	Rischling J INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17326A305	List: 05000315/LER-1979-051, Forwards LER 79-051/03L-0 05000315/LER-1979-051-03, /03L-0:on 790929,isolation Valves VCR-10 & 20 Would Not Close.Cause Not Stated.Valves Cycled & Began to Operate Properly.No Further Action Is Planned
References
LER-79-051-03L, LER-79-51-3L, NUDOCS 7911020389
Download: ML17326A306 (3)

LER-1979-051, /03L-0:on 790929,isolation Valves VCR-10 & 20 Would Not Close.Cause Not Stated.Valves Cycled & Began to Operate Properly.No Further Action Is Planned

Event date:
Report date:
3151979051R03 - NRC Website

text

NRC FORM 366 (7.77)

U. S. NUCLEAR REGULATORY COMMISSION

~0 7

8 CON'T

~01 7

8 PCONTROL BLOCK:

1 I

D C

C 9,

LICENSEE'CODE ICENSEE EVENT REPORT Q1 (PLEASE PRINT OR TYPE ALLREQUIRED INFORMATION) 6 03 0'4 1

1 103~08 14 15 LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 80 QB soURGE LLJQ6 5

0 0

0 3

1 5 Q 9

2'.

7 9 Q 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10 DURING A SURVEXLLANCE TEST THE GLYCOL CONTA,INMENT ISOLATXON VALISES VCR-1 0 AND 2 0 WOULD NOT CLOSE.THESE VALVES WE REDETERMINEDXNOPERABLE IN RESPECT TO T.S. 3.6.3.'l.

THE ACTION REQUIREMENTS WERE 'MET AS THESE VALVES WERE DECLARED OPERABLE IN LESS THAN FOUR (4)

HOURS.

~06

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8 9

80 [OO~)

7,8 SYSTEM

CAUSE

CAUSE COMP.

VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE SSJD Q11 X

Q13

~Z Q13 V

A L

V E

X Q14

~D Q18

~D Q18 9

10 11 12 13 18 19 20

, SEQUENTIAL OCCURRENCE REPORT REVISION LER)RP EVENT YEAR REPORT NO.

CODE TYPE NO.

Q17 REPoRT ~79 Q

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QX

~03 QL

Qo 21 22 23 24 26 27 28 29 30 31 32 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPR~

PRIME COMP.

COMPONENT TAKEN ACTION ON PLANT METHOD HOURS +22 SUBMITTED FORM SUB.

SUPPLIER MANUFACTURER

~018 ~018

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F 033 yJ034

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0 I 9

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33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 WHEN ATTEMPTING TO CLOSE VCR-10 AND 20 VALVE INDICATION SHOWED THAT THESE VALVES WERE STILL OPEN.

A VXSUAL CHECK OF VCR-10 AND 20 REVEALED THAT THEY WE~ FULLY OPEN.

DURING THIS INSPECTION THESE PALVES CLOSED PARTIALLY.

BY CYCLING THESE VALVES THEY BEGAN TO 3

0 ERATE PROPERLYi, OPENING AND CLOSING FULLY'EE SUPPLEMENTS P

METHOD OF DISCOVERY LBJQ>> SmrE 45 46 45 NAME OF PREPARER J. L. Rischling 7

8 9

FACILITY STATUS

% POWER OTHER STATUS Q30 EK L~JQ>> ~10 0

0>>

7 8

9 10 12 13 44 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITYQ 6

Z Q33

~ZQ34 7

8 9

10 44 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION Q39 7 ~00

0. 031 ~Z/38 7

8 9

11 12 13 PERSONNEI INJURIES NUMBER OESCRIPTIONQ41

~OO O

Q48 NA, 7

8 9

11 12 "OSS OF OR DAMAGETO FACILITYQ43 TYPE

DESCRIPTION

B Z

Q42 7

8 9

10 PUBLICITY ISSUED

DESCRIPTION

~20

~NQ44 NA 8

9 10 80 80 80 80 80 IldM3f 80 NRC USE ONLY 14 ER 80 ER 0a 68 69 616-465-5901 DISCOVERY DESCRIPTION Q32 8 LOCATIONOF RELEASE Q

SUPPLEMENT TO LZR '079-051'/03L-0 SUPPLEMENT TO 'CAUSE DESCRIPTION THESE VALVES WERE THEN REPEATEDLY STROKED TO SEE IF THE PROBLEM WOULD RECUR.

NO FURTHER PROBLEMS WERE ENCOUNTERED WITH THESE VALVES AND THEY WERE DECLARED OPERABLE.

DURING THXS EVENT THE XNNER CONTAINMENT XSOLATION VALVES FOR THESE PENETRATIONS WERE OPERABLE.

SINCE THXS XS THE FIRST SUCH PROBLEM ENCOUNTERED WITH THESE VALVES, NO FURTHER ACTION IS PLANNED AT THIS TIME.