ML20085H022

Telecopy RO BFAO-50-260/7412T:on 740903,MSIV FCV-1-52 Found to Close Below Tech Spec Limits.Cause Not Stated

ML20085H022
Person / Time
Site:	Browns Ferry
Issue date:	09/03/1974
From:	Green H TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
NUDOCS 8308300093
Download: ML20085H022 (2)

Text

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> US ATOMIC ENERGY COMMISSION REGION 2 DIRECTORATE OF REGULATORY OPERATIONS 230 PEACH TREE ST NORTHWEST ATLANTA GA 30303 SUBJECT BFAO-50-260/7412T AT 0200 ON 9-3=74 DURING SURVE!LLANCE TESTING ON UNIT 2__ MAIN STEAM ISOLATION VALVE,-PCV-1=52 WAS..FOUND.

TO CLOSE IN 0.6 SECONOS AS COMPARED TO 3.025.0 SECONDS REQUIRED BY THE TECHNICAL SPECIFICATIONS THE OTHER VALVE IN THE SAME STEAM LINE WAS IMMEDIATELY CLOSED THE UNIT WAS OPERATED AT APPROXIMATELY 25 PERCENT POWER H J GREEN BROWNS FERRY NUCLEAR PLANT

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