05000315/LER-1980-026-03, /03L-0:on 801113,glycol Return Containment Isolation Valve Failed to Close During Surveillance Test & During Investigation.Caused by Stem & Lower Guide Bush Sticking.Stem Polished & Bushed Honed

/03L-0:on 801113,glycol Return Containment Isolation Valve Failed to Close During Surveillance Test & During Investigation.Caused by Stem & Lower Guide Bush Sticking.Stem Polished & Bushed Honed

ML17331A249
Person / Time
Site:	Cook
Issue date:	12/12/1980
From:	Wizner D INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17326A796	List: 05000315/LER-1980-026, Forwards LER 80-026/03L-0 05000315/LER-1980-026-03, /03L-0:on 801113,glycol Return Containment Isolation Valve Failed to Close During Surveillance Test & During Investigation.Caused by Stem & Lower Guide Bush Sticking.Stem Polished & Bushed Honed
References
LER-80-026-03L-02, LER-80-26-3L-2, NUDOCS 8012180292
Download: ML17331A249 (4)

LER-1980-026, /03L-0:on 801113,glycol Return Containment Isolation Valve Failed to Close During Surveillance Test & During Investigation.Caused by Stem & Lower Guide Bush Sticking.Stem Polished & Bushed Honed

Event date:
Report date:
3151980026R03 - NRC Website

text

o 000 2 i 2 20~0 25 26 LICENSE TYPE 30 57 CAT 58 NRC FORM 366 I7.77)

'r LICENSEE EVENT REPORT CONTROL BLOCK:

{PLEASE PRINT OR TYPE ALLREQUIRED INFORMATION) 1 6

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9 LICENSEE CODE 14 15 LICENSE NUMBER CON'T

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3 1

5 Q7 1

1 1 3 8

0 Qs 1

2 1

2 8

0 Qe 7

8 60 61 DOCKET NUMBER 68 69 EVENT DATE I4 75 REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES Q10 2

DURING SURVEILLANCE TEST>

VCR 20>

GLYCOL RETURN CONT ISOLATION VALVE FAILED

~03 TO CLOSE AND WAS DECLARED INOPERABLE PER T.S. 3.6.3.1 A.

THE ACTION REQUIRE-MENTS WERE MET. THE 'VALVE WHICH WAS STICKING WAS FREED BY LUBRICATING THE STEM

~OS

~OB AND CYCLING.

IT WAS THEN TESTED SATISFACTORILY.

DURING THE INVESTIGATION, THE VALVE WAS TESTED ON DECEMBER 10 AND AGAIN FAILED TO CLOSE COMPLETELY WITHIN 10 SECONDS'UT EVENTUALLY DRIFTED CLOSED.

THE VALVE WAS DECLARED INOPERABLEp

~OS 7

8 7

8 O

REMOVED FROM SERVICE, DISASSEMBLED AND INSPECTED.

THE VALVE AND AIR OPERATOR 80 SYSTEM

CAUSE

CAUSE COMP.

VALVE CODE COPE SUBCODE COMPONENT CODE SUBCODE SUBCODE

~SD 011 X Oa

~ZOn V

A L

V

'E X 0 ~DQ PJ66 9

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

~

CODE TYPE NO.

Qn REpoRv

~80

+

~02 6

~~

~05

~L QO 21 22 23 24 26 27 28 29 30 31 32 ACTION FUTURE EFFECT SHUTDOWN ATI'ACHMENT NPRDP PRIME COMP.

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

SUPPLIER MANUPPC7U)ER 018 ~0$

~~0Ã

~~0~~

0 0

0 0

+YQ23

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~NQ25 0

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5 5

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'33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27 APPARENT CAUSE OF THE PROBLEM WAS STICKING OF THE STEM AND LOWER GUIDE BUSHING WHICH WAS INITIALLYOVERCOME THROUGH LUBRICATION AND WAS FINALLY CORRECTED BY 3

POLISHING THE STEM AND HONING THE BUSHING.

THE REPAIRS COMPLETED FOLLOWING THE LATEST FAILURE SHOULD MINIMIZE THE POSSIBILITY OF FAILURES IN THE FUTURE.

4 7

8 9

FACILITY STATUS

% POWER OTHER STATUS Q EIH ES ~10 0

029 NA 7

8 9

10 12 44 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITY EKI

~

Q33 LZJQ34 7

8 9

10 44 PERSONNEI. EXPOSURES NUMBER TYPE

DESCRIPTION

~00 0 Q~ZQ~~

N A 7

8 9

11 12 13 PERSONNEL INJURIES NUMBER DESCRIPTION 41

~l8 ~00 0 Q40 N/A 7

8 9

11 12 LOSS OF OR DAMAGETO FACILITY 43 TYPE

DESCRIPTION

9 Z Q42 N/A 7

8 9

10 PUBLICITY ISSUED DESCRIPTIONQ

~20

~NQ N/A 8

9 10 AME OF PRFPARER DAVID G ~

WIZNER 80 80 45 80 80 80 VolZIgizgZ 80 NRC USE ONLY 68 69 80 ~ o p+DNE 6 16 465 590 lr EXT ~ 1 037 a

METHOD OF DISCOVERY DISCOVERY DESCRIPTION Q32

~BQ1 SURVEILLANCE TEST 45 46 LOCATIONOF RELEASE Q

D,~

SUPPLEMENT TO LER880-026/03L-0 SUPPLEMENT TO CAUSE DESCRIPTION:

PARTS WERE CLEANED.

THE VALVE DIAPHRAGM, GRINNELL DRAWING WAPD-CU-SS-9R ITEM 3, WAS REPLACED.

THE STEM, ITEM 11, WAS POLISHED AND THE LOWER STEM GUIDE BUSHING, ITEM 7 WAS HONED.

THE VALVE WAS REASSEMBLED AND TESTED SATISFACTORILY WITH NO APPARENT STICKING.

THE CORRESPONDING ISOLATION VALVE VCR-21 REMAINING OPERABLE THROUGHOUT THE EVENT, THUS PUBLIC HEALTH AND SAFETY WERE NOT AFFECTED.

SIMILAR OCCURRENCES INCLUDE:

RO 79-051/

036-0, 80-025/03L-0 AND 79-060/03L-O.

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II,