ML20084J251

Telecopy Ao:On 730424,during Calibr of LIS 2-263-574,switch Found Drifted Beyond Limit.Other Switches Found within Specs

ML20084J251
Person / Time
Site:	Quad Cities
Issue date:	04/24/1973
From:	Kalivianakis N COMMONWEALTH EDISON CO.
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084J247	List: ML20084J244 ML20084J251 ML20084J255 ML20084J262 ML20084J268 ML20084J271
References
NUDOCS 8305120276
Download: ML20084J251 (1)

Text

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l913nPR24 pli g:39 l VE3043(0937)(2-125655 Ell 4)PD 04/24/73 0937 -

t ICS IPM3NGZ CSP 3096542241 TDdfl CORDOVA IL 82 04-24 0937A EST PMS 3 GRIER, FONE US ATOMIC COMMISSION REGION 3 COMPLI ANCE 799 ROOSEVELT RD  ;

GLEN ELLYN IL $d /37 REFERENCE TJAD CITIES flUCLEAR POWER STATIO:J DOCKET dutisER 50-2o5 D?R-30 APPENDIX A SECTION 1.0. A.2 AND 3.2. A WHILE PEriFORMING 7 ROUTI:4E SURVEILLANCE CALIBRATION OF LIS 2-263-5 7A THE SJITCH W43 FOUND TO HAVE DRIFTED TO 118 INCH H20. THIS SWITCH INITIATES r  :

A LOW LOW LEVEL GROUP ONE ISOLATION AT A SET ?oINT OF GREATER THAN S3 INCHES A30VE THE CORE E3 INCHES IS EQUIVALENT TO A CALI3 RATIO +J -

1 ?RESSURE OF 115 INCH H20. ALL OTHER SWITCHES IN InE OWE.0F l TW TWICE LOGIC WERE WITHIN SPECIFICATIONS -

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