ML20009C326

LER 81-084/01T-0:on 810526,during Mode 5 Initial Fuel Loading & Check Valve Testing,Soft Seats on Containment Isolation Valves Were Damaged.Caused by Reverse Pressurization.Damaged Seat Disc Assembly Will Be Replaced

ML20009C326
Person / Time
Site:	McGuire
Issue date:	06/09/1981
From:	Ouellette R DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009C316	List: ML20009C315 ML20009C326
References
LER-81-084-01T, LER-81-84-1T, NUDOCS 8107200463
Download: ML20009C326 (1)

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avawr casCRimoN ANo eMosASLE CoNsEduSNCES h o . I While in Mode 5.. initial fuel loading, during the secondary UH1 accumulator g r.use I check valve testing certain containment' isolation "?alves were used ar systemt

Go TTl I isolation valves to verifv Reactor Coolant System pressure boundary integrit3 o s i The soft seats on these valves were damaged. This is reportable per  ;

E I Technical Specification 6.9.1.12(i). The health and safety of the public ,

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i I To verifv Reactor Coolant System pressure boundary integrity, several g g i containment isolation valves y e used as system isolation valves and ,

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