ML19323H001

LER 80-032/03L-0:on 800503,during Control Board Insp,Vol Control Tank Outlet Valve Was Found Shut.Caused by Short Circuited Lead in Level Comparator.Shorted Wire Replaced

ML19323H001
Person / Time
Site:	Beaver Valley
Issue date:	06/02/1980
From:	Lacey W DUQUESNE LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19323G997	List: ML19323G996 ML19323H001 ML19323H003
References
LER-80-032-03L, LER-80-32-3L, NUDOCS 8006090382
Download: ML19323H001 (1)

Text

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. U.S. NUCLEAR REGULATORY COMMIS$10N 3 F07M 366 T71 LICENSEE EVENT REPORT CONTROL 8 LOCK: l I

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(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) l l@

E lP l A l B lV lS l 1 l@l 0 l 0 l- l 0 l 0 l 0 l 0 l 0 l- [0 l 0 l@l4 l1 l1 l1 l 1

i LICENSEE CODE 14 15 LICENSE Nuusta 25 2e LICENSE Typt 40 57, CAT Sa ON'T iTTl M*,"J I L l@l o l 5101010131314 l@l 015 l 01318101@l 016 l 0121810l@

DOCK 4T NUV83R 68 60 EVENT OATE 74 ?S REPORT DAT E do 8 60 6t EVENT DESCRIPTION AND PRO 8A8LE CONSECUENCES h j y ! During a control board inspection, an operator found that Volume Control Tank (VCT j

When opened, the valve would not stay in the ,

D I 31 I Outlet Valve [MOV-CH-115C) was shut.

This valve 1 o 141 l open position because of a shorted wire in the level control circuit.

oIsl I beinn shut did not oose a safety problem in that it is upstream of the discharge of I LER 80-20 I O 161 l the boric acid numns which scoolv the suction of the charcine numns.

his type at Beaver Valley Power l O j 71 l references the only other event of approximately t I

80 o la 11 Station.

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13 18 to 20 Revision P 8 9 to OCCURRENCE REPORT SE 3UENTI AL TYPE NO.

REPORT NO. CODE EVENT VE AR 101 L

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_ 28 22 23 POR 8. S PL E MANU.A URER ME HOURS S8 N A ON ONPL NT

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42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h intermittently 1 y l VCT Level Comparator [LC-115C) had a short-circuited lead that -

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The redundant channel in this system was deenergized due to i i l indicated a low level.

I The combination of the short circuit a deenergized circuit caused g i modifications. '

The shorted wire was replace.J and all the rest of the l g I the suction valves to shift.

l i 4 I module wiring was inspected and found satisfactory. 80 i T 8 9 OISCOVERY OESCRIPTION dis O Y

• bPOWER LTHER STATUS l ~l g l Xl@ l 0l 0l 0l@l Design STA l y @l Operator observation f

ACTtvlTY CON TE NT a LoCAT,oNo,REuAsE@  ;

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, ERsON4',N2u'4Es NuMSER OEsCR TION @ l l N/A 8 1010!01@l I

80 7 8 9 18 12 l LOSS OF OR OAMAGE TO FACILITY

' TYPE DESCRIPTION l l i o N/A SO i

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RIPflON N/A l lllll1Il-lllll5 2 a assuUt L l @DE "

' 41 -643-1258 bb 06d 9NAME WL OpF PnEPARERS w* S* tacey PHONE: $

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