ML19323F166

LER 80-040/03L-0:on 800422,during Normal Operation,Lpci Independent Power Supply Inverter a Tripped.Caused by Gate Timing Card Failures.Gate Timing Card Was Replaced

ML19323F166
Person / Time
Site:	FitzPatrick
Issue date:	05/21/1980
From:	W. Verne Childs POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19323F162	List: ML19323F160 ML19323F166
References
LER-80-040-03L, LER-80-40-3L, NUDOCS 8005280605
Download: ML19323F166 (1)

Text

U. S. NUCLEAR REGULATORY COhiMISSigRJ NT.C Fo8M 366 8(7 773 LICENSEE EVENT REPORT n

(PLEASE PRtNT OR TYPE ALL REQUIREo INFORMATloN) 8

() CONTROL BLOCK: l 1 l l l l l o

lh j o j i j l N l Y I J ( A l F l 1 l@l0 10LICENSE 14 15 l- loNUMSER !0 l0 l0 l -l 0l 0l 0l@l 25 26 hlililIl1l@I57 CAT LICENSE TYPE 40 l

Sa 3 .c 7 8 9 LICENSEE CODE

^

CON'T 10Iil 7 8

"'7 ACE l L @l 0 l 5 l0 l 0 l0 l 3 l 3 l 3 l@l 01 4 l 2 l 2] 8 l 01@l 0 ] S O

60 61 DOCK ET NUYSE R 6a 69 EVENT OATE 74 75 REPORT OATE 80 EVENT DESCRIPTION AND pro 8ABLE CONSECUENCES h j

10121 l Durina normal operation the "A" LPCI Independent Power Supply inverter tripped.

lo t al l A second failure occurred on April 28, 1980. In both cases the actions required I "B" l 10141 I by TS 3.9.F.2 were completed to verify the operability of LPCI power supply The event did not i

. I o I s J l and place the "A" system on the maintenance power source.

I t o is i i represent a significant hazard to the public health and safety.

l 10171 I I

l o ta l I 80 7 8 3 COMP. VAtyg SYSTEV CAUSE CAUSE COMPCNENT CODE SUSCODE SU8 CODE CODE CODE SUSCODE lo191 lS lF l@ lE ]@ l G l@ l Gf3 l E l N l E [ R l A l@ lF l@ [20Zl@

9 10 11 12 18 19

1. 4 REFORT REvtSION SEOU EN TI A L OCCURRENCE CODE TYPE NO.

gg go EVENT YEAR REPORT NO.

O ,*(i"j,; 18l0l R l-j l0l4l0l ]/] l0 l3 l l Ll l-l l 0]

28 29 30 31 32 21 22 2J 24 26 27 HOURS 22 58 i POR h B. SUPPt IE MAN ACT RER TA N AC ON ON PLANT l Z lg l0l0l0l0l l N jg l2Y [g l3A lg l E l3 l5 [6 g lAl@lZ]@

33 34 JS l36Zl@ 31 40 el 4 4 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h Replacement ]

I i ) o 1 I Gate timing card failures were the cause of both inverter trips.

i li li j l of the gate t'iming card, filter capacitors and internal power supply corrected lil7l l the problem. Following each failure, the inverter was restored to operable  ;

J l i l 31 l status on the following day. No additional action is required.

i 1

11 I41 1 80 7 8 9 OTHER STATUS ISCO RV OISCOVERY OESCRIPTION STA S *. POW E R Operator Observation l l1 15llEl@ l0l7I3l@i NA l lAl@l ACTivtTY COPTENT LOCATION OF RELEASE RELEASED OF RELEASE AMOUNT OF ACTIVITY l Sta l l

I1 16 7 8 9 I W @ d@l 10 11 NA 44 45 90 PERSONNEL ExPCSURES NuveER TYPE OESCRIPTION l

li171l01Ol0l@lZl@l NA PERSONNEL INJU IES NUMSER DESCRIPTION l

NA li 141 7 8 9 l 010 l 0 lhl 11 12 SO LOSS OF OR OAMAGE TO FACILITY Tv*E OESCRiP TION NA l.

li 191 7 8 9 l Z lhl10 80 PUBLICITY NRC USE ONLY j g gogr'c"'"'~ 10 NA 8 cosa so 6os i 68 69 i i i i i iii iiilij 80 5 9 9 7

W. Verne Childs puoys. 315-342-3840 fj vA m ospaapAsan