05000324/LER-1979-083-03, /03L-0:on 791003,while Performing Instrument Sys Isolation Valve Cycling Test,Valves X59B,X61A & X74A Failed.Caused by Inoperable Limit Switch Button.Parts Readjusted & Replaced

/03L-0:on 791003,while Performing Instrument Sys Isolation Valve Cycling Test,Valves X59B,X61A & X74A Failed.Caused by Inoperable Limit Switch Button.Parts Readjusted & Replaced

ML19254D929
Person / Time
Site:	Brunswick
Issue date:	10/25/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19254D917	List: 05000324/LER-1979-083, Forwards LER 79-083/03L-0 05000324/LER-1979-083-03, /03L-0:on 791003,while Performing Instrument Sys Isolation Valve Cycling Test,Valves X59B,X61A & X74A Failed.Caused by Inoperable Limit Switch Button.Parts Readjusted & Replaced
References
LER-79-083-03L, LER-79-83-3L, NUDOCS 7910300327
Download: ML19254D929 (1)

LER-1979-083, /03L-0:on 791003,while Performing Instrument Sys Isolation Valve Cycling Test,Valves X59B,X61A & X74A Failed.Caused by Inoperable Limit Switch Button.Parts Readjusted & Replaced

Event date:
Report date:
3241979083R03 - NRC Website

text

f7 77)

LICENSEE EVENT REPORT CONTROL BLOCK: l l

l l

l l lh (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6

ITIllyIclnIvIpI9 l@l n I n

- Io InIoInin 1 nIn l@lc l1 Iilil1l@l I

i@

7 8 9 LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE JC 57 CAT 58 CON'T L @l0l5 0l-l0l3l2l4 hl1l0l0l1l7l9 hl1l0 2 l 5 l 7 l9 l@

0 1

S uRCE 7

8 60 61 DOCKET NUM8ER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h ITITI I While performing PT 2.2.la. Instrument System Isolation Valves Cveling test, the fol-1 ITTT1 I lowing RIP valves failed:

1) X59B, push button stuck; 2) X61A, oush button stuck; O

4

13) X74A, no shut indication 1

O s l Technical Specification 3.6.3b, 6.9.1.9b l

ITTs I I I

O 7

l l

0 a

l l

80 7

89 E

OE SUBC E COMPONENT CODE SU8 CODE SU E

IOTil I s l o l@ W@ lx l@ lV lA lL lV l0 lP h W@ W@

7 8

9 to 11 12 13 18 19 20 SEQUENTI AL OCCURRENCE REPORT REVISION LER RO EVENT YEAR REPORT NO.

COOE TYPE NO.

@, reg; l21 7l 9l l-l l0 l8 l3 l y

l 0l 3 l y

_l 22 23 24 26 27 28 29 30 31 32 K N AC O O P T

ME HOURS SB t FOR B.

SU LIE MANUFAC RER W g Xl g l5 Zlg y@

l 0l 0l 0 0l

{g Ylg l Alg X l9 l9 9lg JJ 34 3

36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS i

O l On valve X74A, the limit switch was found to be out of adjustment, and was readjusted l li li l for correct operation. The button for valve X61A was replaced and the button for valvt X59B was freed and lubricated. All valves were cycled and returned to service. An i,

i at Engineering Work Request has been generated to determine if these switch failures are l a generic problem.

l i

4 7

8 9 80 ST

% POWER OTHER STATUS DIS O RY OtSCOVERY DESCRIPTION [1_j,5,] (,,Ejh 0 l 9 l 2 lhlNA l

d hl Periodic Test l

A TIVITY CO TENT RELEASEO OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE [1_j,6,,j d h dh NA l

[_, NA l

7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES NUMBER

DESCRIPTION

l0l0l0lh(TYPE, Z_jhl NA l

1 7 PERSONNE L INJURITS NUM8ER

DESCRIPTION

IM l 0 l 0 l O lhl NA l

7 8 9 11 12 80 LOSS OF O*1 OAMAGE TO FACILITY 1 g9 /

4 4

TYPE

DESCRIPTION

d Wh JA

~

7 8 9 10 80 OE CRIPTION O 7 9103 00 3 Al N RC USE ON LY ISSU E 1,,2,,1,,,J [,,N,,fhl NA l

lllll lllll!l}

7 8 9 10 68 69 80 %

o M son, R.

919-457-9521 PHONE:

NAME OF PREPARER