05000324/LER-1979-078-03, /03L-0:on 790831,while Removing Rwcv,Suction Inboard Value F001 Failed in mid-position.Caused by Torque Limit Switch Opening & Causing Motor to Stop.Valve Tested & Problem Did Not Recur.No Further Action Necessary

/03L-0:on 790831,while Removing Rwcv,Suction Inboard Value F001 Failed in mid-position.Caused by Torque Limit Switch Opening & Causing Motor to Stop.Valve Tested & Problem Did Not Recur.No Further Action Necessary

ML19208D494
Person / Time
Site:	Brunswick
Issue date:	09/25/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19208D490	List: 05000324/LER-1979-078, Forwards LER 79-078/03L-0 05000324/LER-1979-078-03, /03L-0:on 790831,while Removing Rwcv,Suction Inboard Value F001 Failed in mid-position.Caused by Torque Limit Switch Opening & Causing Motor to Stop.Valve Tested & Problem Did Not Recur.No Further Action Necessary
References
LER-79-078-03L, LER-79-78-3L, NUDOCS 7909280492
Download: ML19208D494 (1)

LER-1979-078, /03L-0:on 790831,while Removing Rwcv,Suction Inboard Value F001 Failed in mid-position.Caused by Torque Limit Switch Opening & Causing Motor to Stop.Valve Tested & Problem Did Not Recur.No Further Action Necessary

Event date:
Report date:
3241979078R03 - NRC Website

text

NRC FORM 366 U. S. NUCLE AR REGULATORY COMMISSION (7 7M LICENSEE EVENT REPORT I,

l l

l l

J@

(PLE ASE PRINT OR TYPE AL" REQUIRED INF RMA CONTnOtBtOCx:

6 o

o o

of o @l 4 1l il 1 11@l l@

2 l@! ol ol -l o! o lN c nie r

o i

i 8 9 LICENSEE CODE 14 15 LICENSE NUMM't 25 26 LICENSE T YPE 30 S1 LAT58 CON'T 3 l1 1719 ]gl 0 9l 2l 5l 7l 9 l@

3[U] l L l@l 0 l 5 l 0

- l0 3 l 2 l 4 @l 0 8

o 1

n 1

8 00 61 DOCK ET NtNB E R 68 63 EVENT DATE 14 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h O

2 l While removing RWCV a " leak 11i 111" alarm was received whf ch isolatec the RWCV system. ]

l The operator noticed that the suction outboard valve shut as required but the suction l o

3 Jinboard valve F001 failed in the mid-position.

I o

4 O

5 l Technical Specification 3.6.3, 6.9.1.9b l

O 6

l 0

7 l

l 0

H l

l 80 7

8 9 SYSTEM

CAUSE

CAUSE COMP.

VALVE CODE CODE SU8 CODE COYPCNENT CODE SUSCODE SUBCODE oJ Ic c l@ [ej@ In l@ l vi Al tl vi oi rl@ l A l@ W @

o t

8 9

10 11 12 13 18 19 20 SEQUENTI AL OCCUR RE NCE HEFGHT REVislON LER RO EVENT YE AR REPOR T NO.

CODE TYPE NO.

@ REP l 7l 9l

- l l 0l 7l 8l

]/]

[0l3l lL l

[-J W

7

_2f 22 23 24 du 21 28 2')

30 31 32 COV PO*.E N T ACTION FUTURE EFFECT SHUTDOWN ATT ACHME NT NPHD 4 PHIVECOYp.

MANUFACTURER TAKEN ACTION ON PL ANT METHOD HOURS SUBYl TT E D FOHM SUB.

SUPPLIEH Xl@J4 Z@

l Zl@

]@

l0l0l0l l

l NlQ j Nlg A l@

l 0lg L l2 0

35 36 3/

40 41 42 43 44 47 33 CAUSE DESCRIPTIO*1 AND CORRECTIVE ACTIONS h lAn investigation revealed that the torque limit switch had opened, causing the motor l

!1 o

li li l to stop.

The valve was manually shut then cycled four times electrically and the 1

l i l ;, l [ problem could not be made to recur. This is considered an isolated event and no l further action is required.

l 3

t i 141 l I

8 9 80 STA S

% POWE H OTHER ST ATUS ISL VE DISCOVEHY DESCFUPTION

@ l0 l 9 l 3 l@

NA l

lA lgl Operator Surveillance s

E [i

A flVI T Y CONTENT RELEASED OF RE LE ASF AVOUNT OF ACTIVITY LOCA TION OF RELE ASE Lz J @ l zl@l NA l

l NA l

c 1

8 9 10 11 44 45 80 PEHSONNEL f xPOsuMES NUYRfH TYPE DE SC A I P TION Q]Ol0l@lZ @l NA l

i 7

1 8 9 11 17 13 80 PENJNNE L Injure ES N L'Y B E R CESCH.PTION NA l

l0l0[0l@l i

8 8 9 11 12 LOSS OF OH DAY AGE TO F ACILITY 79()9280 TYPE DE SCFllP T ION l Z l@l NA l

i 9

0 H 9 10

~' )

PUB L ICI T Y N h C US E ON L Y ISSUE D

DESCRIPTION

j j i

121"I bij6l "

1 II 1llllll LJ j 1

8 9 10 CH 69 80 g A. C. To111 son, Jr.

919-457-9521 g

pg g,y.

N Avr OF PUF PArtF,,