05000327/LER-1981-014-03, /03L-0:on 810123,testing Procedure SI-158 for Containment Isolation Valves 1-FCV-62-72,73 & 74 Was Determined to Be Inadequate.Caused by Failure to Take Into Account back-pressure in Line.Procedure Changed

/03L-0:on 810123,testing Procedure SI-158 for Containment Isolation Valves 1-FCV-62-72,73 & 74 Was Determined to Be Inadequate.Caused by Failure to Take Into Account back-pressure in Line.Procedure Changed

ML20003E926
Person / Time
Site:	Sequoyah
Issue date:	04/10/1981
From:	Kirk G, Mcgriff J TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20003E918	List: 05000327/LER-1981-014, Forwards LER 81-014/03L-0 05000327/LER-1981-014-03, /03L-0:on 810123,testing Procedure SI-158 for Containment Isolation Valves 1-FCV-62-72,73 & 74 Was Determined to Be Inadequate.Caused by Failure to Take Into Account back-pressure in Line.Procedure Changed
References
LER-81-014-03L-02, LER-81-14-3L-2, NUDOCS 8104170502
Download: ML20003E926 (1)

LER-1981-014, /03L-0:on 810123,testing Procedure SI-158 for Containment Isolation Valves 1-FCV-62-72,73 & 74 Was Determined to Be Inadequate.Caused by Failure to Take Into Account back-pressure in Line.Procedure Changed

Event date:
Report date:
3271981014R03 - NRC Website

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After a pre-maintenance leak test on January 23, 1981, of l1-FCV-62-13,'the ins'ide containment isolation valve for penetration X-15, was performed go,3j [a ;4 j lLt was determined that the testing procedure set forth in SI-158 was 1nadequate for goj3j j this valve and also' valves 1-FCV-62-72 and 1-FCV-62-74 The procedure failed t'o create [o l6 ) j a large enough

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Name of Preparer

.T." "cCriff/C.3. Kirk Phone (615) 842-8317 810417050 2