ML20213A293
| ML20213A293 | |
| Person / Time | |
|---|---|
| Site: | Hope Creek  |
| Issue date: | 04/16/1987 |
| From: | Corbin McNeil Public Service Enterprise Group |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| NRL-N87066, NUDOCS 8704270485 | |
| Download: ML20213A293 (6) | |
Text
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Public Service Electric and Gas Company Corbin A. McNeill, Jr.
Public Service Electric and Gas Company P.O. Box 236, Hancocks Bridge, NJ 08038 609 339-4800 S:;nior Vice President -
Nucisar April 16, 1987 NLR-N87066 United States Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 BI-MONTHLY BAILEY FAILURE REPORT HOPE CREEK GENERATING STATION DOCKET NO. 50-354 Pursuant to commitments contained in the Public Service Electric and Gas Company (PSE&G) letter to the NRC dated October 15, 1986, attached please find the Bailey 862 Solid State Logic Module (SS LM ) Bi-Monthly Failure Report for the Hope Creek Generating Station (HCGS).
This report covers both lE and non-lE modules and summarizes inservice failures per month by class, assembly type and failure type.
With respect to the last two month period, February 1987 - March 1987, 3 Bailey 862 SSLM failures were identified that had an affect on the circuit in which they were used.
These failures are discussed in the attached Bi-Monthly Report.
Should you have any questions on this transmittal, do not hesitate to call.
Sincerely, R
i Attachment e
8704270485 870416 PDR ADOCK 05000354
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Document Control Desk 2
4/16/87 C
Mr. G. W. Rivenbark Licensing Project Manager i
Mr. R. W. Borchardt Senior Resident Inspector Mr. W.
F.
Kane, Acting Regional Director USNRC, Region I i
l i
l I
BAILEY 862 S0 LID STATE L0GIC M0DULE BI-MONTHLY FAILURE REP 0RT H0PE CREEK GENERATING STATION APR1L 15,1987 4
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HOPE CREEK GENERATING STATION BAILEY SOLID STATE LOGIC MODULE FAILURES POR FEBRUARY AND MARCH, 1987 3 Modules Failures - There were 3 SSLM failures which occurred in the two-month period beginning February 1,.1987 through March 31, 1987.
Projected Reliability 0.79% per year failure rate
- 1) Based upon data from February and March 1987, with 2 and 1 failures respectively, for a total population of 2258 modules.
- 2) The projected annual failure rate is based upon bi-monthly data as presented in a letter from C. A.
McNeill, Jr. to Dr.
T.
E. Murley, dated October 15, 1987 (NLR-N86148).
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R; cord 0:
02-1 Assembly:
BC652 Location: 12 4 S/N: 0809 Fail Date:
02/05/87 Work Order Number 8701280210 System:
HYDROGEN RECOMBINER (GS)
Class: 1E Description of Failures INPUT BUFFER 2 FAILED TO THE HIGH STATE (TURNED ON)
Affect on Systems THE MAIN CONTROL ROOM RECEIVED A FALSE " VALVE GS-HV-5055B CLOSED" INDICATION.
Time in LCO: LCO NOT ENTERED Found During: NORMAL OPERATION
==============================================================
Record #:
02-3 Assembly:
AC653 Location:
8-3-12 S/N: 1023 Fail Date:
02/24/78 Work Order Number:
8702230062 System:
REACTOR AUXILIARIES COOLING (ED)
Class: NON-1E Description of Failure:
MEMORY "A" FAILED DRIVING THE OUTPUT TO THE " LOW" STATE.
Affect on Systems THE CONTROL CIRCUIT OF VALVE 1-ED-HV-2537A WAS DRIVEN INTO " LOCKOUT" CAUSING THE VALVE TO CLOSE.
VALVE 1-ED-HV-2537A CONTROLS WATER FLOW TO ONE OF THE RACS HEAT EXCHANGERS.
Time in LCO: LCO NOT ENTERED Found Durin NORMAL OPERATION
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t 4
4
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1 Rscord #:
03-1 Assembly:
CC652 Location:
1 5 S/N: 1266 Fail Date:
03/12/87 Work Order Number:
8703120249 System:
4.16 KV ELEC DISTRIBUTION Class: 1E Dascription of Failure:
INPUT #4 FAILED "HIGH" PROVIDING AN ERRONEOUS BREAKER TRIP SIGNAL.
Affect on System 4.16 KV INFEED BREAKE" 52-40301 TRIPPED FREE FOLLOWING A CLOSE ATTEMPT.
t t
1 I
Time in LCO: LOO NOT ENTERED Found During: NORMAL OPERATION
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.- -. = - -
BALEY LOGC MODULE FALURES For the period - APRIL 86 thru March 87 14 -
13 -
12 -
11 10 gw 10 -
tr 3
9 -
b 8 -
L.
O y -
b 6
6 In 6 -
3 5
5 5 -
Z 4
4 4
-E 3
3 -
2 -
1 3
0 0
APR MAY JUN adL AUG SEPT OCT NOV DEC JAN FEB MAR O
INSERVICE FAILURES
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