ML20237L617
| ML20237L617 | |
| Person / Time | |
|---|---|
| Site: | Hope Creek  |
| Issue date: | 08/17/1987 |
| From: | Public Service Enterprise Group |
| To: | |
| Shared Package | |
| ML20237L606 | List: |
| 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-
==============================================================
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
u=====================================================================
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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
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 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.)
1 AHect on System
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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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