ML19257D865

LER 80-005/03L-0:on 800105,during Normal Operation,Found Isolation Valve for Pressure Switch 2-E11-PS-N010D Shut. Cause Unknown.Counselled Personnel on Necessity to Follow Procedures to Ensure Proper Instrumentation Svc

ML19257D865
Person / Time
Site:	Brunswick
Issue date:	01/30/1980
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19257D862	List: ML19257D861 ML19257D865
References
LER-80-005-03L-01, LER-80-5-3L-1, NUDOCS 8002060638
Download: ML19257D865 (2)

Text

'

(7 71)

LICENSEE EVENT REPORT f\ cONTnOL sLOcK: l l l l l l l@ (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) lo l t8 l3l N lLICENSEE C l Bf. ODE l E I P l 2IS l@l 0 l 0 l-LICENLE 14 1010 l 0 l o lo l- l023 lo 26@l 4 NUMBEH l 1 livPE LiCENdt 111 JJ l 1 l@l l

5I s A f td l@

7 CON'T-7 0

8 5$0n"CE 60 lL @l015lol-1013l'I4 61 DGCKET NVYSER 91 @l o fEVENT

6) 11 DATEO l S I 8 l O l@l 74 75 aEPOHT oOATE l 1131018lOl@

40 EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h a 2 l During normal plant operation, an I6C technician noticed that an isolation valve for l io l3; [ pressure switch 2-Ell-PS-N010D was shut. This switch supplies a high drywell pres- [

sure signal to ADS. Pressure switches 2-Ell-PS-N010A,B&C were operable and would l

[o r4]

o 3 [

have provided an ADS initiation signal on high drywell pressure. j l

lo is i l 0 7 l o , ; Technical Specifications 3.3.3, 6.9.1.9b l SYSTEM CAUSE CAUSE COMP. VAL \ E CODE CODE SUSCODE COYPONENT CODE SUSCODE SL9 CODE 7

O 9 8 9 l II El@ lX l@ lZ l@ l T l NI S ! T l R l U h W@ IZ l@

10 11 12 13 18 19 20 SEQU ENTI AL OCCURRENCE REPORT REV5.ON EVENT YE AR R E* ORT NO. CODE TYPE NO.

LER 90

@sggt a I 81 01 1-1 1010151 1/l 1013I l t.1 l-l I 01

,,,. 21 22 23 24 26 27 28 29 30 31 1!

MAN F AC L,R E R TA ' C O O PL NT ET HOURS S8 .T FCR M b S. SUPPL 1

[Z,,,_j@ IZl@ l 0 10 l 0 l 0 j W@ lYl@ l Al@ l44B l 0 ] 6 l 947 l(

lXl@

JJ W@

34 3b 36 37 40 el 42 43 CAUSE DESCRIPTION AND CO'tRECTIVE ACTIONS h i o l After receiving authorization from the Shift Foreman, the isolation valve was l g[ opened. It is not known how the valve was shut. PT 11.1.4P, which checks the f

calibration of this instrument, was performed on 12/27/79, and a sign-off for g

, ., l returning the valve to the open position was signed off. I6C and Electrical l g personnel have been counselled on the necessity to follow procedures and to l ,

80 7 8 9 ST 5  % POWE R oTHERSTATUS IS O RY DISCOVE9Y OESCRIPTION i 5 l,,,qj@ l 0 l 1 l 8 l@l, N/A l l l@l Technician Surveillance l ACTiviTV Co TENT RELE ASEO oF RELE ASE AMOUNT oF ACTIVITY LOCATION oF RELEASE N/A t

i 6 8 9 h 10 l

tt N/A 44 l l 4S l

$0 PE RSONNEL (*POSUAES

• NuYBER TYPE DE S ;HIPTION i i 10I0101@lZl@l N/A I

,E. SON ~EL,mu'4ES s .,oE R OESCRi,T,0~@

} 92 7 ) } /1 N/A l 7

i a 8 9 1010101@l 11 12 80 LOSS OF OR OAMAGE To FACILITY TvPE DESCRIPTION N/A I ITF1 1 z l@l "

PUst eNTY 80020606.38 NRc use oNov

• 2 o ISSU E D LN_J81 DESCRIPTION

"'^ l IIII'lilllfil" 68 69 80 F S 9 to PHONE: 919-457-9521 g NAME OF PREPARER

+ .

LER CONTINUATION -- RO NO. 2-80-5 Facility: BSEP Unit No. 2 Event Date: 1-5-80 ensure that all instrumentation is properly returned to service.

O e

i 1927 215 .

i