ML20237L617

Bailey 862 Solid State Logic Module Bi-Monthly Failure Rept

ML20237L617
Person / Time
Site:	Hope Creek
Issue date:	08/17/1987
From:	Public Service Enterprise Group
To:
Shared Package
ML20237L606	List: ML20237L604 ML20237L617
References
NUDOCS 8708280181
Download: ML20237L617 (8)

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'I BAILEY 862 I

S0 LID STATE LOGIC M 0 D U L-E BI- M 0.N T H L Y FAILURE R.E P 0 R T HOPE CREEK GE-NERATING ,.

STATION:

AUGUST 17,1987 i

8708280181 870820 PDR ADOCK 05000354 P PDR L___ -----_____________________x______________----_--. - _ _ _ , __ -- -_ _ _ _ _ _ _ _

HOPE CREEK GENERATING STATION BAILEY SOLID STATE LOGIC MODULE PAILURES FOR JUNE AND JULY, 1987

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9 Modules Failures - There were 9 SSLM failures which I occurred in the two month period {

beginning June 1, 1987 through July j 31, 1987.

] 1 Projected Reliability 2.39% per year. failure rate 1). Based upon data from June and July, 1987, with 2 and 7 failures respectively, for a total population of 2258 modules.

2) The projected annual failure rate is i based upon bi-monthly data as presented in.a letter from C. A.

McNeill, Jr. to Dr. T. E. Murley, dated October 15, 1986 (NLR-N86148).

• Correction to February data i - The failure data for February, 1987 is being revised from l two to three failures for the one month period. See attached failure record.. (

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Record # 06-1 Assembly: SC652 Locations. 1 5 S/N 0151 Fail Dates 06/26/87 Werk Urder Number 8706260292 System 4.16 KV ELEC DIEiRIBUTION Classs- 1E Description of Failures OUTPUT BUFFERS 1 AND 2 FAILED TO THE HIGH STATE Affect on System FAILURE RESULTED IN LOSS OF " CLOSED" AND " TRIP" INDICATION ON 4.16 KV INFEED BREAKER 52-40201.

Time in LCOr.LCO NOT ENTERED Found During: NORMAL OPERATION-

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Record #: 06-2 Assembly: BC653 Location: 12- 6-12 S/N 1429 Fail Date: 06/20/87 Work Order Number: 8706190324 System: DRYWELL HVAC Class: NON-1E Description of Failure:

BUFFER INPUT #8 FAILED TO ITS LOW STATE Affect on System FAILURE RESULTED IN SPURIOUS " LOW FLOW" INDICATION AND ALARM ON DRYWELL COOLER FAN H2V212 Time in LCO LCO NOT ENTERED Found During: NORMAL OPERATION

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Record #: 07-1 Assembly .DC653 Location: 9- 6-13 S/Ni 1465 Fall Date: 07/07/87 Work Order Number: 8707060017 Systems AUX BLDG AND CONTROL AREA CHILLED WTR Class NON-1E Description of Failure:

OUTPUT BUFFER #4 FAILED TO ITS HIGH STATE.

Affect on System:

' FAILURE RESULTED IN FALSE CONTROL AREA CHILLED WATER SYSTEM "OUT OF SERVICE" COMPUTER POINT AND ALARM.

Time in LCO: LCO NOT ENTERED Found During: NORMAL OPERATION au========================================================================

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l l Record # 07-2 l Assembly: BC652 Location: 5 5 S/N 0666 l

Fail Date: 07/07/87 Work Order Number: 8707060025 i System: DEMIN WTR STORAGE AND TRANSFER Class: 1E Description of Failure:

OUTPUT BUFFER #1 FAILED TO THE HIGH STATE.

Affect on Systems FAILURE RESULTED IN FALSE "OPEN" INDICATION ON REACTOR BLDG SERVICE ISOLATION VALVE 1-AN-HV-2600.

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Time in LCO: LCO NOT ENTERED Found During NORMAL OPERATION

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l Record #: 07-3 Assembly: BC653 Location: 1- 4-11 S/N: 0580 Fail Date: 07/16/87 Work Order Number: 8707130368 Systems SOLID RADWASTE Class: NON-1E Description of Failures L INPUT BUFFER #1 FAILED TO THE LOW STATE.

Affect on System FAILURE RESULTED IN FALSE "INOP" INDICATION AND ALARM ON 480 VOLT TIE DREAKER 52-30033.

Time in LCO: LCO NOT ENTERED Found During: NORMAL OPERATION

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Record # 07-4 Assembly: AC653 Location 8- 4-12 S/N: 1314' Fall Date: 07/25/87 Work Orcer Numbers- 8707202211 Systems REACTCR FEED PUMP TURBINE STEAM Class: NON-1E Description of Failure OUTPUT BUFFER #6 OPERATED INTERMITTENTLY.

Affect on System FAILURE RESULTED IN INTERMITTENT "A" REACTOR FEED PUMP TURBINE

. MODE INDICATION.

l Time in LCO: LCO'NOT ENTERED .Found During: NORMAL OPERATION

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Record # 07-5 Assembly: AC652 Location: 5- 4-15 S/N 2330' Fail Date: 07/27/87 Work Order Number 8707202229 Systems SERVICE WATER Class: 1E j Description of Failure:

MEMORIES A AND B WOULD NOT SET.

Affect on Systems 1

, FAILURE RESULTED IN FALSE " PROTECTIVE INTERLOCK IN TEST" INDICATION ON THE l l STATION SERVICE WATER SYSTEM STRAINER'AF509. l Time in LCO: LCO NOT ENTERED Found During: NORMAL OPERATION i =======================================================================e--

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l Record #: 07-6 l l Assembly: CC652 Location: 8 7 S/N:'2273 <

l. Fail Date: 07/16/87 Work Order Number: 8707130013 l Systems SAFETY AUXILIARIES COOLIN8 SYSTEM. Class: '1E l Description of Failures OUTPUT BUFFER # 5 FAILED TO THE HIGH STATE.

Affect on System FAILURE RESULTED IN FALSE " LOW FLOW" INDICATION ON SACS PUMP CP210.

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Time in LCO LCO NOT ENTERED Found During NORMAL OPERATION- J

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Record-#3 07-7

! Assembly:. CC652' Location: 1 3 S/N 2051 ' '

l, Fail'Date: 07/31/87 Work Order Number: -870803151 j L' System: 4.16 KV ELEC DISTRIBUTION Class 1E i Description of Failures , ,

l l OUTPUT BUFFER #6 AND #8 FAILED TO THE HIGH STATE, MEMORY B FAILED.) ,

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AHect on System FAILURE CAUSED IMPROPER OPERATION OF THE 4.16 KV CIRCUIT l BREAKER 52-4030BJ ,

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l Time in LCOs LCO NOT ENTERED Found Durings NORMAL OPERATION

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Record # 02-3 Assembly .AC652 Location: 1 9- O S/N 2314 Fail Date: 02/10/87 Work Order Number: 8702100011 Systems NUCLEAR BOILER AND REACTOR RECIRC Class: 1E Description of Failures INPUT DUFFER #1 FAILED TO THE HIGH STATE l

Affett on System FAILURE RESULTED IN FALSE "INOP" INDICATION ON REACTOR RECIRC PUMP MOTOR 1BN205.

1 Tima in LCO LCO NOT ENTERED Found During: NORMAL OPERATION

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