05000369/LER-1981-091-03, /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

/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: 05000369/LER-1981-091, Forwards LER 81-091/03L-0.Detailed Event Analysis Encl 05000369/LER-1981-091-03, /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
References
LER-81-091-03L, LER-81-91-3L, NUDOCS 8108030274
Download: ML20009G042 (1)

LER-1981-091, /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

Event date:
Report date:
3691981091R03 - NRC Website

text

.

e U.s.NUCLEAA f!ECut.ATORY COMMISSloM r;etc 705:M 364 LICENSEE EVENT REPCRT EXHIBIT A cenTno:,. stocx: l 1

1 1

1 1 l@

tri aAss entur oa rr,s au. nsouinto suponuAriosi [oIII l vi cl v I c l cl, l@u0 l 0l -1010101 01 OI I Ol0 l@:.'. I ill li l il@lsi ur s. @

I j

a uctast n,e aa uca,.saa,v=esa

. ucaussa ecos i.

(of31 l'd" lL)@l 0j5l0 1 0 1 0l3 !6I 9 @ l0 15I 31 01 811)@l016 l 2 ] 51 811 l@

coni.

sa e.

tytMrQATE 3

79 AEPCAr0 Art 80 eG 68 OOcEErhum.tR 7

8 event oascaimou Ano enceAsi.s cousscVENCEs @ light on the Peak Shos.k Annunciator i

I While in Mode 4, the "16 Hz" amber 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 1

lois;I a violation of T.S.3.3.3.3 and is reportable per T.S.6.9.1.13(b).

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

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

, the public t:=.re not affected.

,o,,,

ea

~

E Su of COMPONENT CDOS

$4 g

su C E [TTTI.

I IID l@ W@ LL.1@ lI I NI SIT I RI Ul@ (R_J@ W @

i.

i, iz iz oCCUA4ENCE mtPCatt A EVtslos..

SE.OuthTTA4.

rear a coon nn a.

@ g,,,

.svaarma-g 18 Ill 1-1 1 019111 Id, 10131 ILI L.. J l 01 t

m

=

2 m

2 2.

2.

m m.rn;:

=.. ~:w, -

A ::*c:::..

~

c=

~

InIn!n@Inl L.Y. _l@tu_l@

L.L_J@l E l2. l 5 l 9 l@

n

=mt-u l

LL@lL}@

(Jl@

(2 j@

m u

cAust cascaimca Ano conneenve Ac ncus @

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

,,,y g

Control Room I

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

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

'sr18 arenzrarus.@

U"scovSaI oiscoven,otscaimoa @

spo-.m IiisI{,X_J @ l0i GI Ol@l Mode 4 l~

[ A,_J@l Personnel Observation l

is is

=-

=

34, g

- ou,.1o,.c m ir, @ l m. r, o,..t u. @

..uA..

o,..t A.

l N/A l

l N/A uj sj iI I @ LZj@sa noso.'.t ex,os e.sca,,rio,. @

ou.

rvn I

li l 71 l o l 01 Ol@lyj@l N/A

'. naso== 'i.'i,uu'Zeseeu.mo @

liisll0101Ol@l N/A l

.uM..

go 7

8 9 il 12

'C'. " "J,'",'E. '"" @

l

( Z.j@l v/A 8 5 n

N AC USE CNi.Y l1j.o_1 l H f@T."c,-rio @

,ssu s l

N/A I

IIIIIIIffIIIl i.

Phillip B. Nardoci W ) 373-7432

,=4=aesemuAnan 8108030274 810625 PDR ADOCK 05000369 i

S PDR 3