ML17326A397

LER 79-059/03L-0:on 791108,during Test,Containment Air Particulate Detector Isolation Valve ECR-31 Would Not Close. Caused by Leaking Asco Solenoid Air Supply Valve & Vent Port Tube Restriction.Valve Cleaned & Tube Removed

ML17326A397
Person / Time
Site:	Cook
Issue date:	12/07/1979
From:	Delong S INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML17326A396	List: ML17326A395 ML17326A397 ML17326A398
References
LER-79-059-03L, LER-79-59-3L, NUDOCS 7912130372
Download: ML17326A397 (3)

Text

NRC FORM 366 U. S. NUCLEAR REGULATORY COMMISSION (7.77)

~r CENSEE EVENT REPORT CONTROL.BLOCK: Qi (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

I

~01 7 8 9 M I D LICENSEE CODE C C 1Qs00000000000Qs41 14 15 LICENSE NUMBER 25 26 1

LICENSE TYPE 11O~Qs 30 57 CAT 58 CON'T

~O ~LQB 0 5 0 0 0 3 1 5 Q7 1 1 0 8 7 9 Qs 74 75 i 2 0 7 REPORT DATE 80 QB

7. 8 60 61 DOCKET NUMBER 68 69 EVENT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES +IO DURING THE PERFORMANCE OF A SURVEILLANCE TEST PROCEDURE, ECR-31 CONTAINMENT ISOLATION VALVE FOR 'THE CONTAINMENT AIR PARTICULATE DETECTOR) WOULD NOT CLOSE.

~p4 THIS CONDITION IS NON-CONSERVATIVE WITH RESPECT TO T. S. 3. 6. 3 ~ 1 ~

~OB

~OS 80 7 8 9 SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

~Os Q11 E Q12 ~XQ13 V A L V E X Q4 ~XQ15 ~X Qls 7 8 9 10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION Q17 LER]RP sssoAT ACTION FUTURE FVENT YEAR

~79 21 22 EFFECT

~

23 SHUTDOWN

~05 24 REPORT NO.

9 26

+~

"" 27

~03 28 ATTACHMENT CODE 29 NPRDC TYPE

+L 30 PRIME COMP.

L 31 NO.

+0 COMPONENT TAKEN ACTION ON PLANT METHOD HOURS O22 SUBMITTED FORM SUB. SUPPLIER MANUFACTURER

~O@~Zg, 33 34

~ZQss 35

~Zygo 36 37 O O O W 40

~VQss 41

~V@4 42

~VQss 43 44 A 4 9 9 47 Qss CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27

~io THE FAILURE OF ECR 31 WAS FOUND TO, BE AN ASCO SOLENOID AIR SUPPLY VALVE LEAKING BY, AND A V.INCH TUBE ON THE VENT PORT OF THE SAME ASCO CAUSING A RESTRICTION IN AIR FLOW. THE COMBINATION OF THESE TWO CONDITIONS KEPT AIR ON THE DIAPHRAM 3

OF ECR-31 NOT ALLOWING IT TO CLOSE ~

4 SEE ATTACHED SUPPLEMENT 7 8 9 80 FACILITY METHOD OF STATUS  % POWER OTHER STATUS QSO DISCOVERY DISCOVERY DESCRIPTION Q32 s ~GQss ~00 0 Qss NA ~BQ31 SURVEILLANCE TEST 7 8 9 10 12 13 44 45 46 80 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY85 LOCATION OF RELEASE Q EKI WZ 7 8 9 Q33 aZQ34 10 NA 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION Q39

~00 0 Qss ~ZQss NA 80 7 8 9 11 12 13 PERSONNEL INJURIES 7 8 9 11 12 80 LOSS OF OR DAMAGE TO FACILITY TYPE Z Q42 DESCRIPTION Q43 NA

'7 9 /zy 8 ug 9 z 7 8 9 10 80 O

ISSUED PUBLICITY L~JQ44 DESCRIPTION ~ NA NRC USE ONI Y o

7 8 9 10 68 69 80 o 61 6-46-5901 0 NAME PF PREPARER S. D. DeLOng PHQNE. 0

SUPPLEMENT TO LER ¹79-059 03L-0 SUPPLEMENT TO CAUSE DESCRIPTION THE ASCO SOLENOID VALVE WAS CLEARED OF DIRT BUILD-UP AND THE >< INCH VENT LINE WAS REMOVED.TO INCQEQSE THE VENT AREA.

NO FURTHUR ACTION IS PLANNED.

0 v+

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