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___

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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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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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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 l

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Record #

07-5 l

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

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07-6 l

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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 l

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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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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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