ML19225C797

From kanterella
Jump to navigation Jump to search
LER 79-009/03L-0 on 790628:during Power Operation Reactor Bldg Hydrogen Purge Fan VSF-30A Tripped After 90 Minutes of 10-h Run.Caused by Overcurrent.Fan Restarted Using Less Sealing Water
ML19225C797
Person / Time
Site: Arkansas Nuclear Entergy icon.png
Issue date: 07/27/1979
From: Shively C
ARKANSAS POWER & LIGHT CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19225C790 List:
References
LER-79-009-03L-01, LER-79-9-3L-1, NUDOCS 7908020459
Download: ML19225C797 (1)


Text

NRC FORM 306 (7 77) U. S NUCLc AR REGULATORY CC5 MtS$10N LtOENSEE EVENT REPOPT EXHIBIT A CONTROL BLOCK LI I I I I IQ <*'E^sE eaiNT oa Tver au nEcuinEO .N,OaMATIONi i

e loIij 8AlR 7

9 l A j Nl 0 l 1 lgl 0 l0 l - l0 0 0l 0l 0 l- l 0 l0 lgg j 1 d

1 l1 [ 1 g[ [ ;g j L8CENSEE CODE 15 t s C E N A N' 4*t' E h h E L v ( N .t 3,rt N *a s CATse C ON' T I

oIi 5

s10 LL_J@l0 I s p 10 0l3i1l3igl0l6l2l8l7 9)gl 0l7 l 2 l 7; 7 l 9lg 60 61 C OC sL E T N' NB E R td to EVENT DATE 74  % "F P CH T D A T. hC EVENT OESCRIPTION AND PROB AOLE CONiEQUENCES h Io 12 I i Durinc Power operation, Reactor Buildinc livdrocen Purge I L9_d J LFan. VSF-30A. tripped after 1 1/2 hours of a 10 hpur i o 4 Lsurveillance run. per nrocedure 1104.33. The __ i

[F'p 1 Credundant fan was operable, so the public health _

l e c, land safety .as not affec M. Other occurrence involving  ;

a i I the livdrocen Purce fans were 50-313/79-001 and 77-018. I E fReportavle ner T.S.6.12.3.2b. _ i 7 A 'l S'-iLY ALE L A ~;E ' P (ODE Lt "E #v E' . 7E . i.t s k

t. * *. E N * .i - t CJE

!n!9l l S I f;j @ [F_J@ [_X_J @ ( B l Ll O j Wl E R l@ Q @ [ _J @

T .

g g a wc

EVENTvEA4 ~ ~

b ( P C '1 T * ^

C D. .

~

, n ,..

t'Pt S. O e .. '

_., a :4 .. v v ,

A E* A T C'd CNP T 'T *0 R! 2 s F G NeTTE P - .

A - t [ rt LEJ@LO@ @@

JJ J4 LEJ@

L

! 0101 01 Jd 40 i LNJ@4i LNJ@ A L_JO I NI A 0l1 l0g ,

4; 43 a4 4p CusE cEsCn-Tics ao cCwEC rin ACTiC".S @

1 o lIt was determined that the Reactor Building flydrogen .g

[iiii i Purce Fan trinned on over current. The fan was i unj Lrostarted usine less sealine water, which resulted in [

, lless current. The survrillance test was successfully connleted. I i 4 iEncineerinc is evaluatinc optimum seal water switch settinc. t

's'dT.' tro*Ea n~E s : ATus @ Es!OiUv' m i is LE)@ l0 l 4 i Ol@ NA

,,y c E w,,, r oN AC Ti vi t y l { B_J@[ Surveillance Test l CON TE N T '

AELE ALE D OF AE LE ASE A',g A *, T O F A C T ' v'i T V 7

, C 8 3 uu @ g_jsl 10 11 NA I i NA g m ?. f eG=, g. H E L E A', E i

44 45 PE H50*.NE L E ir POsva t s M0 L a.*E i P TYPE C,E s.k r PTiON Ii' I i 10 I of Oi@LZ J@!" NA

' ' l F wsoNNEl'.. JEs

  • mun . c E sCP,, r.c N @

i NA

- 101010 l@lo

,, , i, l L Os', f,F O A O AV A GE TO F Actit TV - ,

T*PE DEsCPIPTION l1 l 9 aI 3[.Z._J@l NA T io P v B L ICI T Y J

,5e;y g g M 5C P IP TION Ob CI d*blY 2 o LNJ81 NA

' * '*  ! !!Iilll lt lll a . . ,e NAME OF PPEPARE P

  • pe iO'1 E 435 0 b ggo80d W

. ...