05000313/LER-1978-010-03, /03L-0:on 780419,motor Operator of Standby Hydrogen Purge Isolation Valve CV-7449 Failed to Torque Out. Caused by Torque Switch Failure.Switch Replaced

/03L-0:on 780419,motor Operator of Standby Hydrogen Purge Isolation Valve CV-7449 Failed to Torque Out. Caused by Torque Switch Failure.Switch Replaced

ML19326B390
Person / Time
Site:	Arkansas Nuclear
Issue date:	05/12/1978
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19326B387	List: 05000313/LER-1978-010-03, /03L-0:on 780419,motor Operator of Standby Hydrogen Purge Isolation Valve CV-7449 Failed to Torque Out. Caused by Torque Switch Failure.Switch Replaced 05000313/LER-1978-011-03, /03L-0:on 780420,exhaust Fan VEF-37B Supply Breaker Tripped.Cause Unknown.Circuit Breaker & Overload Heater Replaced ML19326B386
References
LER-78-010-03L, LER-78-10-3L, NUDOCS 8004150759
Download: ML19326B390 (1)

LER-1978-010, /03L-0:on 780419,motor Operator of Standby Hydrogen Purge Isolation Valve CV-7449 Failed to Torque Out. Caused by Torque Switch Failure.Switch Replaced

Event date:
Report date:
3131978010R03 - NRC Website

text

.

s NRC FOnes 3eg U.S.NUCtEAR REGULATORY COMM SS40N (7 77)

UCENSEE EVENT REPORT CXHIBIT A gNTaot stocx: I I I I I I l@

intEA E rniNT on Tyre att nEatst -o iNeoamarioNi I A I R I A IM lo lf l@itl o lo l lo lo lo lo 101 - 1o 1o 1@l411 I t it i t l@l I l@

o i 3

8 9

WCthSEE coot 14 uC&hst nuwetR 25 26 UGEN!4 TV,3 Je 67 CAT 64 con'T l

Ioeii

= IL l@lo!5 to lo lo 13 Ii 13 GI 014-1 l 141118 @l0 Ifl i 12.l' IIP l@

3 4

de el ooCKET NuessER GS 89 EV.NT oATg 74 75 RE,ont oATE EVENT oESCRIPTloN AND pro 8A8LE CONSEQUENCES h rDvA bdeT.h J h&u, kl2 o. uw isolakicm. /alve c614441 in -

M Mb Cmmenede ske he b fdue. et Odd!W" Y$VI A e.

1/G l

i i

,a E lh8W\\

b fa ariiru:" sk thoote'Br e..

G.

C2 f-I ihea14"d sake;b cras wk emdbeeeel as A. m.sb-a o,

b 1 ih i bd wo. -e s.Ud 4ke ab 64=.'bm-u.m na ar i

i I T T 71 I A v.< te > > b das -NF'_ M.

I i

i TTTTII I

Y.c"os" To'N su"*'S sue $o'o's su'sEoEs Lo L'.!

lSIE.l@ LEj@ he@ lYI AILldcaosIGIPl@ LA_l@ lgj@

cou,onsw

,v,,1v[A.

".Mi"[

'i "d "

I? T l

u O,,ag,,),,o L1.Lej L.]

I oi I I 01 1-I Io13i L.i J L--!

n

~3 g

Loj o

26 22 23 24 24 27 78 29 30 31 32 d

'A O

r M TH Mouas Pop S.

u.

MAN n.n

=*'"

l_J@l Fl@

Laj@

lgj@

loIofoIof LB.j@

LYJ@

LAj@

lL.1210101@

33 34 34 JS 37 40 48 42 43 44 47 causEcEsenienoN ANocoanEenvEacnoNs @ be bcue s aM1 rTTTI 10.m.asa. du dek M e.1 43 The.

I i bewe c.dtd tAhe remlac.e4.

e b k VafVe dm dar i

i CIU31 d' Make**

mad a m ak ad.The skem JM be. rephe.d j e

a Id.S a heav'er stem In de new [.wbre. YalVe cosIbu'u I

i 3 id.I\\ k het [n he_ IwbM.

vwic +

w I

I

• iw or...mru. @ "u"ain o,.c...

c..,,,o,. @

,,0 (9.j@ l of a fol@l Al A I thj@lTWss9tvscm TTcev J4 1

i s

. g,,,,, g,,,

7 o

n

-=

=

.a A.ou,,1o,.cmirv @ I tocArioo,.uA..@

LIJuAn@o o, a.uA., l uA l.lj aso~, 'd ex@,o.0.

I Rh I

i a o.scai,,,o @

D@A o

uu...

1,P FOTI Io Io I ol@LE.J@l u

O fl.

I

' ',gio~a. auu'f,.s,_',', g (7

g

'7 IT~iT1 10 Ie Io l@l h

n Iin nlA I

LOSE of CA o AGE o FAC urY rvPE oESCatPrfoN lij@l wh I

i e 7

8 9

.O 30

! llll l

l!!

7 8 9 10 68 69 80 g

M E

N"UN NAME oF PREPARER PHONE:

\\

8 0 0 415 0 zrf