ML19209B686

LER 79-068/03L-0:on 790910,downscale Alarm for Average Power Range Monitor F Activated at 2%.Average Power Range Monitor B Out of Svc.Caused by Instrument Drift & Detector Open Signal Lead.Instrument Recalibr

ML19209B686
Person / Time
Site:	Brunswick
Issue date:	10/03/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19209B678	List: ML19209B677 ML19209B686
References
LER-79-068-03L, LER-79-68-3L, NUDOCS 7910100318
Download: ML19209B686 (1)

Text

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LICENSEE EVENT REPORT CONTROL BLOCK: l 1

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(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) l@1 41l1 l 1 Jo@l57 CAT 58l@

l ITI l I 9N I c}lCENSEE 7 8, l 8 ICODE E I P l 2 lhl50 l 0 l -LICENSE 14 1 l 0 l NUMBER 0 l 0 l 0 l 0 l -25 l 026l 0 LICENSE TYPE CON'T O 1 "'0,"c' so l60 L @ l 01 5DOCKET 0l-l0 3 l 2 l 468@l 019 EVENT l 1 lDATE 0 l 7 l 9 l@l 1l 0REPORT l 0 l DATE 3 l 7 l 980l@

7 8 61 NUMBER 69 74 75 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h R While nerforminz PT 1.2.4. APRM High Flux and Downscale Test, the downscale alarm for l 0 3 l APRM "F" actuated at 27. vice the required 37. . APRM "B" was also out of service due l 0 4 to a detector open signal lead. l 0 s l Technical Specification 3.3.1. 6.9.1.9a l l 0 l6 l l 0 7 l o a L. __I 7 8 9 80 E CODE S BC E COMPONENT CODE SU8 CODE SU E 7

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36 l0l0l0 0l 31 40 lN g 41 l42 Y [g Nlg lG 44 0 l 8 l 0 lg 47 43 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i o l APRM "F" vas out' of calibration due to instrument drift. The instrument was recal- l W ibrated and returned to service satisfactorily. APRM "D" will be replaced during the l 3

2 l next outage of sufficient length. As this is the first APRM calibration problem, g 1 3 l this is considered an isolated event and no further action is required. l l1 4 7 8 9 80 ST  % POWER OTHER STATUS DI O RY DISCOVERY DESCRIPTION

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