05000368/LER-1982-050-03, /03L-0:on 821222,at 100% Power,Control Room a Emergency Chiller ZVE-1A Failed Monthly Surveillance Test Due to Excessive Cycling.Caused by Low Freon Charge Due to Leak on Pressure Gauge Fitting.Leak Repaired & Freon Added

/03L-0:on 821222,at 100% Power,Control Room a Emergency Chiller ZVE-1A Failed Monthly Surveillance Test Due to Excessive Cycling.Caused by Low Freon Charge Due to Leak on Pressure Gauge Fitting.Leak Repaired & Freon Added

ML20028F265
Person / Time
Site:	Arkansas Nuclear
Issue date:	01/21/1983
From:	Moeggenberg D ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20028F258	List: 05000368/LER-1982-050, Forwards LER 82-050/03L-0 05000368/LER-1982-050-03, /03L-0:on 821222,at 100% Power,Control Room a Emergency Chiller ZVE-1A Failed Monthly Surveillance Test Due to Excessive Cycling.Caused by Low Freon Charge Due to Leak on Pressure Gauge Fitting.Leak Repaired & Freon Added
References
LER-82-050-03L, LER-82-50-3L, NUDOCS 8301310325
Download: ML20028F265 (1)

LER-1982-050, /03L-0:on 821222,at 100% Power,Control Room a Emergency Chiller ZVE-1A Failed Monthly Surveillance Test Due to Excessive Cycling.Caused by Low Freon Charge Due to Leak on Pressure Gauge Fitting.Leak Repaired & Freon Added

Event date:
Report date:
3681982050R03 - NRC Website

text

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NRC FORM 366 U.S. NUCLEAR REGULATORY COMMISSION (7-77)

LICENSEE EVENT REPORT EXHIBIT A CONTROL BLOCK: l _ l _ l_,,_l_,,_i _ l_,_l1 (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6

Tb b [ b AT 5 8

"I 2

E

!-'1A n n !A !A'1'4!&'A!d ' ' '4!' !A'4!&'4! ' '41' lA'4!&HlA'4!'

EVENT DESCRIPTION AND PROBABLE CONSEQUENCES 10 l1111 10n 12/22/82 while in Mode 1 at 100% full power, the "A" control room emergency chiller (2VE-1A) failed its l

l111l l monthly surveillance test due to excessive cycling. The redundant control room emeroency chiller (2VE-1B) l l1111 lwas operable. This event is reportable per Technical Specification 6.9.1.9.(b).

Similar occurrences l

l1l11 l involving control room emergency chillers were reported in LER 79-050,79-053, 79-076,80-026, 80-054,80-070, i l1111 180-092,81-007 and 81-040.

I 11111 l

l 1111l l

l 7

8 9 80 SYSTEM

CAUSE

CAUSE COMP VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE TIT 5,,_ I 11 112 113 l T 1,E_i_,X_I_C,_l 14 115 116 SEQUENTIAL OCCURRENCE REPORT REVISION LER/R0 l EVENT YEAR REPORT NO.

CODE TYPE NO l_

2 ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRD-4 PRIME COMP.

COMPONENT TAKEN ACTION ON PLANT METHOD HOURS SUBMITTED FORM SUB SUPPLIER MANUFACTURER l18 119 120 121 l 0_l_0__l 22 123 124 125 l _7_,l _8__ l 26 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 27 l111l lThis event was caused by a low freon charge. A leak was found on a pressure gaae fitting. The leak was l

l111l l repaired and the system recharged with freon. The surveillance test was then run and the chiller was proven l

l1l1l loperable.

l 11111 l

l 11111 I

l 7

8 9 80 FACILITY METHOD OF STATUS

% POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION 11111 l_E_l28 iB Operator Observation 132 1 F l_0,_l 0 129 l1 l

NA 130 45-131 i 72 13 44 46 80 7

8 9 ACTIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE 11l11 11133 l Z 134 l NA 135 l NA 136 7

8 9 1F 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE

DESCRIPTION

11111 l

Z NA 139 9_0_,1,,0_I 0 137 l7 ~138 l

~Il 1

13 80 7

8 PERSONNEL INJURIES NUMBER

DESCRIPTION

11111 NA 141 9_0_l 0_l 0 140 1 l

Il 12 80 7

8 LOSS OF OR DAMAGE TO FACILITY TYPE

DESCRIPTION

11111 1.,Z,_l42 l NA I43 8301310325 830121

~

PUBLICITY PDR ADOCK 05000368 NRC USE ONLY ISSUED DESCRIPTION 11111 1 N 144 I NA PDR 145 61 _i_i_l_i_l_I_I_l_i_lE0 Il l

_,8 2

7 8 9 10 0

NAME OF PREPARER Dan Moeggerbero PHONE: (501) 964-3100 t