ML20084H852

Telecopy AO BFAO-7423T:on 740414,HPCI Failed to Reach Rated Flow in Required Time.Hpci Returned to Svc After Satisfactory Testing

ML20084H852
Person / Time
Site:	Browns Ferry
Issue date:	04/15/1974
From:	Green H TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20084H846	List: ML20084H843 ML20084H852
References
AO-BFAO-7423T, NUDOCS 8305060028
Download: ML20084H852 (2)

Text

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REGION 2 DIRECT 0P ATE OF REGULATORY OPER ATIONS 230 PEACHTREE ST ,

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BFAO-7423T THE HPCI SYSTEMS FAILED TO MEET ITS ST ART TIME REQUIREMENT 3  ;

DURING PERFORMANCE OF A POST MAINTENANCE SURVEILL ANCE TEST -

AT APPROXIMATELY 930AM ON 4-14-74 THE REACTOR WAS IN THE PROCESS _

0F STARTING UP AND WAS AT R ATED TEMPERATURE AND PRESSURE AND APPROXIMATELY 10 PERCENT POWER LEVEL THE HPCI REACHED R ATED O _

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SLOW IN 27.5 SECONDS VERSUS REQUIRED TIME OF LESS THAN 25 SECONDS THE SYSTEMS HAD PREVIOUSLY MET ALL REQUIREMENTS WHEN TESTED O I WITH AUXILI ARY STEAM PRIOR TO START UP AND WHEN TESTED WITH r.imi im.- O REACTOR STEAM AT THE 150 PSIG LEVEL HPCI W AS RETURNED TO SERVICE O -

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