05000265/LER-1980-017-03, /03L-0:on 800724,during Testing,Pressure Switch PS-2-1622B Was Found to Actuate at 20.3 Rather than 13.8 Inches of Water.Caused by Setpoint Drift.Switch Replaced

/03L-0:on 800724,during Testing,Pressure Switch PS-2-1622B Was Found to Actuate at 20.3 Rather than 13.8 Inches of Water.Caused by Setpoint Drift.Switch Replaced

ML19338C948
Person / Time
Site:	Quad Cities
Issue date:	08/12/1980
From:	Steffes C COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19338C947	List: 05000265/LER-1980-017, Forwards LER 80-017/03L-0 05000265/LER-1980-017-03, /03L-0:on 800724,during Testing,Pressure Switch PS-2-1622B Was Found to Actuate at 20.3 Rather than 13.8 Inches of Water.Caused by Setpoint Drift.Switch Replaced
References
LER-80-017-03L-05, LER-80-17-3L-5, NUDOCS 8009080417
Download: ML19338C948 (1)

LER-1980-017, /03L-0:on 800724,during Testing,Pressure Switch PS-2-1622B Was Found to Actuate at 20.3 Rather than 13.8 Inches of Water.Caused by Setpoint Drift.Switch Replaced

Event date:
Report date:
2651980017R03 - NRC Website

text

. _.

U.s. NUCLEAR REEULATO2Y COMMISSloN NRC FORf.I 366 *

(747)

LICENSEE EVENT REPORT CONTROL BLOCK: l l

l l

l lh (PLEAsE PRINT OR TYPE ALL REQUIRED INFORMATION) 6 13 l 1 l l l l Ll Q l A l D l 2 l@150 l 0 l 0 l - l0 l 0 l0 l-l0 l0 l0 l@l 4 l 1 l 1 l 1 l

l@

7 8 9 LICENSEE CODE to LICENSE NUM8ER 25 26 LICENSE TYPE JO 67 CAT Es ccvT loI'I E'R$ [ I-]@l 0 l 5 l 0 l 0 l 0 l 2 l 6 I 5 l@l0 17 12 l4 l8 l0 l@l 0 l 8 l 1 l 2 l 8 l 0 l@

3 60 _

43 OOCKET NUMSER 68 69 EVENT D ATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PRO 8ABLE CONSEQUENCES h lo I:I l While performing Torus to Reactor Building Vacuum Breaker Surveillance Test, qts-48, l Es i36l pressure switch PS-2-1622B was found to actuate at 20.3 inches of water. Technical l

6 3 la ; l Specification 3.7.A.3.a. requires actuation at less than 13.8 inches of water. The l

1e i3; I redundant 100 percent flow vacuum breaker A0-2-1601-20A was operable and would have l

!: sI1 actuated had the need arisen.

Subsequently, safe operation was not affected.

I : i 71 1 I

I i

i 3 ie l i 80 g 3 SYSTEM

CAUSE

CAUSE COVP.

VALVE CODE CODE SUSCODE COMPONENT CODE SUSCODE SUSCODE I:lel lI l BlO LEj@ [ A J@ ll lN l Sl T[ Rl U l@ y@ Q @

5 9_

10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION LER RO EVENT YEA R REPORT N CODE TYPE N O.

@Pg l218l0l l_l l 0 l3 l $. l y

l0l3l l Ll

[]

[0,j i

22 23 24 26 27 28 29 30 31 32 J

(I AC O

O P NT MET HOURS US I FOR P.9 8.

SUPPL 1 VANUF CTURER IA [@l Z l@

l* Z1@

lZl@

l 0 l0 10 10 l lY l@

lYl@

lNl@

l S 1318 l2 j@

d, 34 33 36 31 40 4l 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i: ll The cause of this occurrence was setpoint drif t.

The switch could not be reset I

t'l'1I properly due to wide fluctuations in the setpoint. The switch was reolaced and I

., i l tested satisfactorily.

I i

31 1 I

t i: l I I

80 3 9 S

3

% POWER OTHER STATUS iO R DISCOVERY DESCRIPT:ON NA l

[,,,Bj@l Routine Survei11ance l

l ' I i l l E l@ l 0 l 7 l 5 l@l I

'2

% vity CaTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE NA l

l NA l

1 11 91 l Z l @ l Z i@l l

3 3 10 11 44 45 80 I

PERSO*.*.EL EXPOSURES l I - ! l 0 l 0 l 0 lhl TYPE @lDESCR'PTION NuttB E R Zl NA l

l

,ERSO.. El'mu'llES J

DESCRinno~@

4 r.U,.,u R l t - ! l 0 l 0 lo l@l NA l

4

$ 9 11 12 SO LO*;$ dF OR D AMAcE TO FACILITY TvoE

DESCRIPTION

NA l

I r l :l I Z l@l e

's to 80

~

8 liL,,) W@ DESCRIPTION tSSago NA l

l l l l l l l l l l l l 1 ;,

l 88 **

So ;

d 00s 0 8 07/ Curt Steffes 309-654-2241, ext. 175 o

NAP.1E op PREPARER PHONE:

?