05000315/LER-1979-059-03, /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

/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: 05000315/LER-1979-059-03, /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 05000315/LER-1979-060-03, /03L-0:on 791116,intermediate Deck Door to Ice Condenser Found Frozen Shut.Caused by Plugged Air Handling Unit Drain Line & Frozen Drainage Overflow.Ice Removed & Drain Line Cleared.Mod Initiated ML17326A395
References
LER-79-059-03L, LER-79-59-3L, NUDOCS 7912130372
Download: ML17326A397 (3)

LER-1979-059, /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

Event date:
Report date:
3151979059R03 - NRC Website

text

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

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8 CON'T

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8 CENSEE EVENT REPORT Qi (PLEASE PRINT OR TYPE ALLREQUIRED INFORMATION) 1Qs00000000000Qs41 1 11O~Qs 14 15 LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 CONTROL.BLOCK:

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60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES +IO DURING THE PERFORMANCE OF A SURVEILLANCE TEST PROCEDURE, ECR-31 CONTAINMENT 80 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

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8 9

80

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8 BY, AND A V.INCH TUBE ON THE VENT PORT OF THE SAME ASCO CAUSING A RESTRICTION SYSTEM

CAUSE

CAUSE COMP.

VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE Q11 E

Q12

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A L

V E

X Q4

~XQ15

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10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION LER]RP FVENT YEAR REPORT NO.

CODE TYPE NO.

Q17 sssoAT

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+0 21 22 23 24 26

"" 27 28 29 30 31 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRDC PRIME COMP.

COMPONENT TAKEN ACTION ON PLANT METHOD HOURS O22 SUBMITTED FORM SUB.

SUPPLIER MANUFACTURER

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9 Qss 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS Q27

~io THE FAILURE OF ECR 31 WAS FOUND TO, BE AN ASCO SOLENOID AIR SUPPLY VALVE LEAKING 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

FACILITY STATUS

% POWER OTHER STATUS QSO s

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Qss NA 7

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10 12 13 44 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNTOF ACTIVITY85 EKI WZ Q33 aZQ34 NA 7

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10 44 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION Q39

~00 0

Qss ~ZQss NA 7

8 9

11 12 13 PERSONNEL INJURIES METHOD OF DISCOVERY DISCOVERY DESCRIPTION Q32

~BQ31 SURVEILLANCE TEST 45 46 LOCATIONOF RELEASE Q 45 80 80 80 80 7

8 7

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7 8

9 11 12 LOSS OF OR DAMAGETO FACILITYQ43 TYPE

DESCRIPTION

Z Q42 NA 9

10 PUBLICITY ISSUED DESCRIPTION~

L~JQ44 NA 9

10 NAME PF PREPARER S.

D.

DeLOng 80

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80 o 00 68 69 PHQNE.

61 6-46-5901

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.

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