05000369/LER-1981-074-03, /03L-0:on 810429,inadvertent Safety Injection Initiated on Train a When Solid State Protection Sys Logic Cabinets Were Returned to Svc W/O Blocking Injection Signals During Initial Fuel Load.Caused by Mods to Cabinets

From kanterella
(Redirected from ML20009F625)
Jump to navigation Jump to search
/03L-0:on 810429,inadvertent Safety Injection Initiated on Train a When Solid State Protection Sys Logic Cabinets Were Returned to Svc W/O Blocking Injection Signals During Initial Fuel Load.Caused by Mods to Cabinets
ML20009F625
Person / Time
Site: McGuire Duke Energy icon.png
Issue date: 05/29/1981
From: Ouellette R
DUKE POWER CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009F622 List:
References
LER-81-074-03L, LER-81-74-3L, NUDOCS 8107310362
Download: ML20009F625 (1)


LER-1981-074, /03L-0:on 810429,inadvertent Safety Injection Initiated on Train a When Solid State Protection Sys Logic Cabinets Were Returned to Svc W/O Blocking Injection Signals During Initial Fuel Load.Caused by Mods to Cabinets
Event date:
Report date:
3691981074R03 - NRC Website

text

r e

peac 7Cau 264 U. s. NUCLEA A a f cut.AfoMY CcMuawc.

rr.in LICENSEE EVENT REPCRT EXH! alt A ccuract atecx: l l

I l

! l l

1,trAss,asar ca rvet att.accusaro impoauAricm i

l a l i l l Nl C l M l G l S I 1 l@is0 ! 01

! O! 0l 010101 -! 01 O!@ 4 I 1l,11 l 1 l@l

{

Ig s

wcausse :Coe i.

wet =sa.

.*a a

s us osa rv.e

.e si car u cour lo!'i Ov'*3 Lt GI O! s 1010 t 01 als I 9 GI c141219 I 8 I 1 @l015 : 21918 11 ! @

u e

m ei cocair~u....

a eve = r oa ri re is asecar cars so aveNT crscairTics Ano raceasts cousscuesces @

ITTT'I I n f l a in Mode 5. initial fuel loadine, an inadvertent safety injection was g G lin4*4,+M on Train A when the Train A Solid State Protection System cabinets 13!.#twere returned to service without blocking the safety injection signals.

y e lThe health and safety of the public were not affected.

This is reportable t o is 1 i ner Technical Specification 6.9.1.13(c).

3 La_L'J l t o ie ; ;

J rveriu e,cu ciuu cC..

v.<,,

CCC4 ccas Su640CG CCas*Cae5N1 *3CG f* 9CCCG Su.CCQt lo($1 l S IF l@ W@ l B l@ i 7l r l 7 I z l 7l 7l@ [_Zj@ y @

i.

is is is i.

u Sf Chinev1 6 GCcum e t esCe e s ec.eT a gviSIC88

  • 3 (NE7ef vtAn aspca r tsQ.

CCCE O a(ng.,a0 Is ! 1I L-j

[ 017i'<l 1-1 1013 l l tI

[- ]

[.0_j TV t

~c, v

u a

s.

a zu a

2a u

a me: m'

m, w r e.,@10!1.=

.;;=.. ~;:.w,r

.2 :,,

L2U@L.cJ@

LZJ@

L7J@

l 0Ic ! 0 (JJ@

l N!@

lZl@

l z i o ! 9 I c 'Gi 22 u

a

.e

.s ca e cesesieriou ano ccamenva Ac to s @

1. !a l I Durine modification work, certain safety injection permissive blocks were j

m Icleared from the Solid State Protection System Train A Logic.

When the w Isvstem was returned to service safety injection was initiated.

The safety ti!2i l iniection was terminated and new procedures were written to keep this in-tit.i tcident from occurring again.

e s arbs 4.Cwen QTwta57ATV3 Q SCO MV 28 SCC,tav CESCmiPTIC8s fITsl [.2,J@ 10 l 0 l Ol@L_ Mode 5 l U.e@l coerator OMervation l

e4 eg g is is

.a

..e, C,.c.,,ir. @ l

-,,Co...u i

I i I s 1 L2.J @, C...<m,L:J@l NA

..s m.

l NA i

nasc~~tenesOis

,,C...C,@

[i i 7 I l 010 l 0 l@lZ l@l NA l

nasc

.'s'..uu'2as e s sC=rCa.@

e..

li !, ! [ 010 l 0 !@l

,A J

l ii i

',S$. ' *" f=.,fC,f " @

fit'l L. Z.j@l l

NA i.

.ggy g g CairffCM L.N.21 NA

o i

tii!ri!ieiei!

o a e ia es se sa

,uee,ene,4 ara R.

W. Ouellette (704) 373-7530

,wcu s; 8107310362 810529

/

PDR ADOCK 05000369 S

PDR