ML20082S596

Telecopy RO 50-286/83-005:on 831011,drain Lines on Accumlators Determined Connected by Manual Valve.Caused by Design Error.Nonseismic Line Could Fail During Earthquake. Procedures Revised to Maintain Valve Closure

ML20082S596
Person / Time
Site:	Indian Point
Issue date:	10/12/1983
From:	Brons J POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To:	Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
NUDOCS 8312140213
Download: ML20082S596 (1)

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,O aEGIONAL ACRINISTRATOR REGIONiCNE O 631 PARK AVE KING OF RRLSSIA PA 19406 g O e O CEAR OR klRLEY, O CN CCTOBER 11, 1983, h!TP THE PLAAf Im TrE CCLD SHUTC0hN CChDITIch, O IT WAS DETERPINEC TFAT TFE DESIGN CF TFE DRAIN L!hES C A O.1339) CN TFE O ACCUPULATCRS IS SUCF TFAT A SEIS. HIC AND A NONSE!$FIC LINE ARE CONNECTEC EY A NCRPALLY CPEN, >ANUAL VALVE. THIS PCTENTIALLY CCLLC O LEAC TO A LCSS OF FLUIC FRCM TFE SEISMIC LIAE IF TFE NCNSEISHIC LIhE O IS ASSUMEC TC FAIL DURING AN EARTFCUAKE. TFIS EVENT FALLS UADER,THE JURISDICTICA 0F TECHNICAL SPECIFICAT!ch 6.9.1.7.I, WHICF ACCRESSES O STRUCTURES CR COPPCNENTS REQUIRING CORRECTIVE MEASLRES TO PREVENT O

CPERATION IN A MANNER LESS CCNSERVATIVE THAh THAT ASSUPED IN TFE ACCIDENT ANALYSIS. THIS CONDITION FAS BEEN Ih!TIALLY OCRRECTED BY O O REVISION TC CPERATING PRCCEDURES TC HAINTAIN THE VALVE NORPALLY CLCSED DLRING CPERATION. RESIDENT INSPECTOR'T KENNY hA! NCTIFIEC AT 0800 HOURS CN CCTOBER 12, 1983 TFIS TELEGRAF SERVES At THE 24 POUR O A0TIFICATICN REGUIRED BY TECHNICAL SPECIFICATION 6.9.1.7 O JOSEPH E RUSSELL FOR J0FN C BRONS RESIDENT PANAGER O INDIAN PCINT 3 NLCLEAR POWER PLANT O

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