ML19326B341

AO 50-313/74-03:on 740706,reactor Bldg Control Purge Isolation Valve CV-7402 Failed in mid-position.Cause Appears to Be Binding in Operator.Valve Operators Will Be Disassembled,Inspected & Repaired as Required

ML19326B341
Person / Time
Site:	Arkansas Nuclear
Issue date:	07/08/1974
From:	Phillips J ARKANSAS POWER & LIGHT CO.
To:
Shared Package
ML19326B336	List: ML19326B335 ML19326B338 ML19326B341
References
NUDOCS 8004150720
Download: ML19326B341 (1)

Text

.

(~) $ '~ W: ~ iv= m c ;.3 n m y ' ~ ~~7:

b ,

a w:%W m t y %! :^;s y; = W- ; ;f3*M

~ Y.[ L [lk. [s[,i,[ $NfbD,.gd[hI5Nfi .[ . 4 1

K.;.K.1 wrg;gp UEB g,pqpm zgEmyg. n W.;.ir,,.LMuQ _

4['hD

_?f- TQi&' W' li&J;i _. W _ -  ?%: & F-a.)__Y =_-_A A L d2W' -c W

' ., 0, l' E TBC245 f l642) (2-03229 7E139)PD 07/08/74 1541 ' -

/.

ICS IPMB NGZ CSP -

I /

5013724311 TDBN LITTLE ROCK AR 105 07-08 0441P EDT FON 4045264503 I

UNITED STATES ATOMIC ENERGY COMMISSION ATT MR NORMAN C MOSELEY DIRECTOR OF REGULATORY OPERATIONS I

LEGI0ff II 230 PEACHTREE ST NW SUITE 818

~

ATLANTA GA 30303 l

SUBJECT ARKANSAS POWER AND LIGHT COMPANY: ARKANSAS NUCLEAD ONE-trNIT 1 OPERATING LICENSE CPR-51 ABNORMAL CURRENT REP 00T #50-313/74-3 ON JULY 6TH 19 74 AT 2020 HOURS DURING NORMAL SURVEILLANCE TEST STROKING OF REACTOR BUILDING CO NTROL PUoGE ISOLATION VALVES D

PER OPERATING PROCEDURES 130470, CV-7402 FAILED IN THE MID POSITION.

y THE PROBLEM APPEARS.TO BE BIN 9ING IN THE OPERAT00, N0 9FETY"

~./

). IMPLICATIONS UERE INu0LVED DUE TO THE FACT THAT THE RE90ND. ANT -

VALVE CV-7401 IS OPERABLE AND IT IS IN THE CLOSED POSITION,.

( cr.m, ins.an I

AtlD THE PLANT IS IN A COLD SHUT D09N CONDITION PRIOR TO INITIAL ,

CR ITI CA LITY. THE VALVE OPERATORS UILL BE DIASSEMSLED, INSPECTED I

AND REPAIRED AS REQUIRED J D PHILLIPS SENIOR VICE PRESIDENT NNNN

~ ~

D TB _

d;J)& '

bl T n r

J 1 J] E 13)g ' A -

DET Sii3T TO: FDR LPra.. ~ ggyr FDR ' '

(

ItsIc -

, s w_ .- -

3 .

11C g,,,,__,,,,

(Al U sr. mum. -

~

-8 0 0 415 0 7 rg ,

O t