ML20134Q251

Ro:On 840604,during Startup,Reactor Shut Down When Channel 2 Not Indicating in Expected Power Range.Caused by Faulty Connector.Faulty Signal Cable Connector Replaced & Normal Operations Resumed

ML20134Q251
Person / Time
Site:	05000128
Issue date:	06/05/1984
From:	Feltz D TEXAS A&M UNIV., COLLEGE STATION, TX
To:	Johnson E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
NUDOCS 8509090254
Download: ML20134Q251 (1)

Text

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O O > E H JOHNS 0N, udANCH CHIEF #

HEACTok PROJECf 3 RANCH UNE iJS NUCLEAR HEG COMM HEG IV O si: HYAN PLAZA DR SUITE 1000 -

O AHLINGTON TX 76011 O 9 0 e, 1

dEFEnENCc HEP 0HfAblE OCCUhWENCE, LOSS OF SIGNAL TO SAFETY MEASURING O CHANaEL. O sl ON JUNE 4 1934 DJHING SIAHTUP OF THE NSCR AT 1109 HOURS IT WAS

-O OBSERVeu friAf SAFETY CHANNEL NdMBEH 2 dAS NOT INDICATING. THIS WAS O udSedVED IN fHE PonEH HANUE A!iERE THIS CHANNEL SHOULD INITI ALLY dtSt>0ND (.30K,i - 100Kn). INDICAflu:lS nERE I 0HMAL oil ALL OfHER O acASuaINo CHANNELS. Tiit HEACTod iv AS SHUT DOWN AND THE PRJBLEM TRACED O fu A FAULfY CONNECrod IN THE SIGNAL CABLE To THE SAFETY CHANNEL NUMBcH 2 UEldCf0R. THE CONNECTOR WAS REPLACED AND INSTRUMENT CHECKS O . sche PcHF0dMED. OUdIWG STARTUP Ot; THE REACIGH AT APPH0XIMATELY 1300 0 HOURS, SATE 1Y CHANNEL NUMBER 2 ReSPONDEt) PHOPERLY. THE REACTOR WAS HETUHNcu fo NOHMAL Or>ERATIONS.

O DONALD E FELTZ, DIHECTOR O NUCLEAR SCIENCE CENTEH FE BOX d9 FEXAS A&M UNIVERSITY O COLLEGE STArloa ix 7784 #

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