ML20009G042

LER 81-091/03L-0:on 810530,peak Shock Annuciator Amber Light Observed On.Caused by Light Reed Switch from Triaxial response-spectrum Recorder Making Contact.Reed Switch Adjusted,Tested & Delared Operable

ML20009G042
Person / Time
Site:	McGuire
Issue date:	06/25/1981
From:	Nardoci P DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009G038	List: ML20009G037 ML20009G042
References
LER-81-091-03L, LER-81-91-3L, NUDOCS 8108030274
Download: ML20009G042 (1)

Text

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e U.s.NUCLEAA f!ECut.ATORY COMMISSloM r;etc 705:M 364

• LICENSEE EVENT REPCRT EXHIBIT A 11 tri aAss entur oa rr,s au. nsouinto suponuAriosi cenTno:,. stocx: l 1 1 1 l@

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7 8 eG 68 OOcEErhum.tR event I Whileoascaimou in Mode 4,Ano the "16 enceAsi.s Hz" amber cousscVENCEs @ light on the Peak Shos.k Annunciator i ga#2; I

ITTT1 I was observed to be ON and af ter determination of the source of the signal

,o g ,,a Triax4n1 Response-spectrum Recorder was declared inoperable. This is No lois;I a violation of T.S.3.3.3.3 and is reportable per T.S.6.9.1.13(b). 1 i,,,, ,

seicmic event occurred while the Recorder and Annunciator wcre inoperable, ,

and since redundant instrumentation was operable the health and safety of ,

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,o,,, , the public t:=.re not affected.

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ma n e e,,2,- o a u r e., ~ f Ii6oi1The "16 Hz" amber licht of the Penk Shor k Arm mc4 2t m- .

,its reed switch from the Trinvial Response-Spectrum Recorder (Model PSR l200-H/V012A, Engdahl Enterprises) made contact. The reed switch was ,

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, , ,31 l adjusted and the instrument was tested and declared operable. Control Room I

,,,,,, personnel v411 be instructed to improve their knowledge on the seismic equipme t.

'sr18 spo-.m arenzrarus.@ U"scovSaI oiscoven,otscaimoa @

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Phillip B. Nardoci ,,,,,, W ) 373-7432

,=4=aesemuAnan 8108030274 810625 PDR ADOCK 05000369 S PDR i

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