ML20084K589

Telecopy Ro:On 740613,level Switch LIS-2-263-72D Failed. Switch Lightly Pressed & Functioned Normally.New Switch Ordered

ML20084K589
Person / Time
Site:	Quad Cities
Issue date:	06/14/1974
From:	Kalivianakis N COMMONWEALTH EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084K568	List: ML20084K565 ML20084K580 ML20084K589 ML20084K594
References
NUDOCS 8305190488
Download: ML20084K589 (1)

Text

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w E R ObY ORDERS VEA074(0959)(2-009471E165)PD OMIAtf L i 0, (YE -ACENT, NO-AJC AGENT SECTICH ICS.IPMBNGZ CSP Nbr. & Nud /1 - fgg. $['EC { SECTION [

N n 3096542241 TDBN CORD 0VA IL 89 06-pttGR5SA Eup/,(Liggy9y y PMS J KEPPLER, REGIONAL DIRECTOR,

["t[ deliver E DIRECTORATE OF REGULATORY OPERATInhas REGION 3 US A OMfd kiERdY UU l COMMISSION 799 ROOSEVELT RD GLEN ELLYN IL 60137 1

-REFERENCE QUAD CITIES NUCLEAR POWER STATION UNIT 2 DOCKET 50-265, t

BPR-30, APPENDIX A SECTIONS 1.0.A.2, 3.2.B CABLE 3.2.2, AND ,

6.6.8 ON JUNE 13 WIIH THE REACTOR IN'THE COLD SHUT DOWN CONDITION, j

- SURVEILLANCE FUNCTIONAL TESTING WAS.BEING PERFORMED. WHEN THE c S v

TEST PRESSURE WAS APPLIED TO LIS-2-263-72D IT FAILED TO TRIP.  ;

.g THE MERC010' SWITCH WITHIN THE LEVEL SWITCH WAS NOT . ACTUATING, _

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BUT UPON BEING LIGHTLY PRESSED II STARTED FUNCTIONING NORMALLY. l IT WAS TESTED NUMEROUS TIMES WITH NO FAILURES. A NEW LIS WILL .,

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BE OBTAINED TO REPLACE THE EXISTING UNII.

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