05000333/LER-1981-028-03, /03L-0:on 810327 & 0413,refuel Floor Vent Monitor Failed Three Times.Caused by Normal Wear & Tear.Low Voltage Power Supply Parts Replaced After First Failure.Indicator Replaced After Second

/03L-0:on 810327 & 0413,refuel Floor Vent Monitor Failed Three Times.Caused by Normal Wear & Tear.Low Voltage Power Supply Parts Replaced After First Failure.Indicator Replaced After Second

ML19345H247
Person / Time
Site:	FitzPatrick
Issue date:	04/26/1981
From:	W. Verne Childs POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19345H246	List: 05000333/LER-1981-028, Forwards LER 81-028/03L-0 05000333/LER-1981-028-03, /03L-0:on 810327 & 0413,refuel Floor Vent Monitor Failed Three Times.Caused by Normal Wear & Tear.Low Voltage Power Supply Parts Replaced After First Failure.Indicator Replaced After Second
References
LER-81-028-03L, LER-81-28-3L, NUDOCS 8105010398
Download: ML19345H247 (1)

LER-1981-028, /03L-0:on 810327 & 0413,refuel Floor Vent Monitor Failed Three Times.Caused by Normal Wear & Tear.Low Voltage Power Supply Parts Replaced After First Failure.Indicator Replaced After Second

Event date:
Report date:
3331981028R03 - NRC Website

text

u. S. NUCLEAR AEGULATORY COMMISSION NRC FO".M 366 (7 77)

LICENSEE EVENT REPORT O

co~' o' 'oc< i i

i i

i i le a'~r oa Tv

" a au' o '~ o M*'>o~>

lo 61 l lN l Y l J l A lF l l l@l0 10 l-l0 l0 l0 10 l -l O! 01 Ol@l Ll ? ! I I Il 1l@l I

l@

7 8 9 LICENSEE COct le 15 UCENSENQUSER 2$

26 LICENSE TYPE 40 57 CAT Ss CON'T 2 l7 l 8 l 1 gl 0 l 4 ; 2l 6l 8l 1l@

J 0 i 3 9 J

loIil s$*,"C lL]@l0151010to131313l@l 7

5 60 61 QQCKET NWV8 EM 68 69 EVENT DATE 74 75 REPQRT QATE 80 EVENT DESCRIPTION AND PROS A8LE CONSEQUENCES h lo i 21 l During normal operation, while conductine turveillance to satisfy TS Table 4.2-4.

I Io 6 21 l Refuel Floor Vent Monitor failures occurred three times on 3/27/81 and 4/17/81.

1 l o t il 10urino the 3/27/81 failure the redundant monitor was ooerable.

During the fnfInrae l t o i s t t on 4/13/81 (which involved both monitors) building ventilation was isolated per I

e f

l o 161 I TS Table 3.2-4, Note 2B.

l lo l7l l l

1314 I l 83 SYSTEV

CAUSE

CALSE C O*.t P.

VA LV E COCE CCCE SLBOCOE COMPONENT C00E SUSCOOE 3Us0CCE l M I C l @ [_E_j @ l E l @ l l I N I S l T l R l U lh l X I@ l z l @

lo t al 7

9 9

to 11 12 13 16 IS 2c SECU ENTI AL CCCU a R E NCE REPORT AEVi$!CN lea ao EVENT YE AR R EPO R T.NO.

COCE TYPE NC.

@ s,ig; 18 11 I l-l 1012i81 l/l 1013I ILI l,1 10 l a

_2, u

n

4 a

7 n

n u

2 u

TAK A

ON ON PLANT EN HQURS

$8 iTT FC 8.

SLP* it MAN FACTLAEm lx !@LzJ@

I z I@

Izl@

I.0 I O I 0101 I Ni@

l Y l@

l Nlh l N l 3 ! O l 5 I 3;

44 36 26 3d 40 41 40 43 44 47 CAust CESCRIPTION AND CCARECTIVE ACTICNS carrectgA I ii I o i inn cmnl waa r and tone (anal fe enne1A caA th. emne.

The f t re t fsfInro use li ii ; iby replacement of low voltage oower supoly carts. The second failure was corrected I l

Iby replacement of the indicator.

Th (third failure could not be duolicated.

j ii,2i l i 6 :1 l Investigation did not reveal any oroblems.

Each reoair was followed bv I

I Ii 6 4 i Icalibration.

?

3 3 [IS00h 4 Cl5COVERYE5:3'P TICN ST 5

% PCWEa CTNER STATUS NA i

W hl 9urv Illance l

I' i e I [g_j@ l 1 I o I ol@l 8

CNTENT ACTtvtTV mELE ASED Cs mELE ASE AVCUNT CF ACTIVITY LOCATION Cp mELE A3E l

l l

l1 l6 l lj h dhi c

yA PE.Sc Nd Ex,Csu'AEs

esc iPT,CN @

Nuo.E.

Tv.E l

liI:t101010l@lz!@l HA 2

,E asCNN E L,N;u'Rits etseniPTicN@

Nuveta li 141101 o l o l@l NA 30 7

5 3 11 1:

LCSS G8 OA CAYACE TO FA02LITY Q Tvei

150aiP f.C N

%,/

7 4 9 13

$3'4 E E OM ' TION i

ritiiiiiii'in m oi i dsi Na 3

81b50$03NA.tEcasEuaEs

'-"2-*o V*r'* Chi'd5

- cNE:

1