ML20215H144
| ML20215H144 | |
| Person / Time | |
|---|---|
| Site: | Hope Creek  |
| Issue date: | 06/17/1987 |
| From: | Corbin McNeil Public Service Enterprise Group |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| NLR-N87112, NUDOCS 8706240016 | |
| Download: ML20215H144 (6) | |
Text
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s Public Service Electric and Gas Company Ctrbin A. McNeill, Jr.
Public Service Electric and Gas Company P.O. Box 236, Hancocks Bridge, NJ 08038 609 339-4800 Semor Vice Pres: dent
- Nuclear JUN 171987 NLR-N87112 United States Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 Gentlemen:
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 (SSLM) Bi-Monthly Failure Report for the Hope Creek Generating Station (HCGS).
This report covers both IE 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, April 1987 - May 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, hw Epuh6 z 7
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n-Attachment f00 8706240016 870617
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JUN 171987 Document Control Desk 2
C Mr.
G.
W.
Rivenbark Licensing Project Manager Mr. R. W. Borchardt Senior Resident Inspector Mr. W. T.
Russell, Regional Administrator USNRC, Region I Mr.
D. M.
Scott, Chief Bureau of Nuclear Engineering Department of Environmental Protection 380 Scotch Road Trenton, NJ 08628 l
it '
I I
BAILEY 862 1
S~0 L I D-STATE L0GIC M0DULE B'I -
M0NTHLY FAILURE REP 0RT t
H0PE CREEK GENERATING STATION JUNE 16,1987 i
.ai 1
8.
i HOPE CREEK GENERATING STATION BAILEY SOLID STATE LOGIC MODULE FAILURES.FOR APRIL AND MAY, 1987 j
3~ Modules' Failures - There were 3 SSLM failures which-occurred in the two month period beginning April 1, 1987 through May 31, 1987.
' ' Projected Reliability
-- 0.80% per year failure rate
- 1) Based upon data from April and May,.
1987, with 1 and 2 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.
I McNeill, Jr. to Dr. T.
E.
- Murley, dated October 15, 1987 (NLR-N86148).
1 o
Record #:
04-1 Assembly:
CC652 Location: 12 8 S/N 0426 Fail Date:
04/16/87 Work Order Number:
8704130073 Systems MAIN STEAM ISOLATION SEALING SYSTEM Class: 1E Description of Failures BUFFER OUTPUT NUMBER 2 NON-FUNCTIONAL Affect on Systems RESULTED IN LOSS OF THE " CLOSED" STATUS INDICATION FOR THE MSIV SEALING SYSTEM OUTBOARD SEAL GAS SUPPLY ISOLATION VALVE 1-KP-HV-58378.
Time in LCO LCO NOT ENTERED Found During: NORMAL OPERATION
==============================================================
Record #:
05-1 Assembly:
CC653 Location:
1-3-11 S/N 1468 Fail Date:
05/13/87 Work Order Number:
8705110220 System:
7.2 KV ELECTRICAL DISTRIBUTION Class: NON-1E Description of Failures MEMORY "A"
AND "B" FAILED INTO THEIR " LOW" STATE.
Affect on Systems PREVENTED THE AUTOMATIC MODE OF THE TAP CHANGER ON THE 13.8 TO 7.2 KV TRANSFORMER 1BX502.
Time in LCO: LCO NOT ENTERED Found During: NORMAL OPERATION
==============================================================
l Record #
05-2 Assembly:
DC652 Location:
4 8 S/N: 0457 Fail Date:
05/26/87 Work Order Number:
87052600,19 Systems CONTROL ROOM EMERGENCY FILTRATION SYS Class: NON-1E Description of Failure:
LOGIC INPUT NUMBER 3 FAILED TO ITS " LOW" STATE.
Affect on System FAILURE RESULTED IN A FAULTY LOW AIR FLOW SIGNAL TO THE CONTROL ROOM EMERGENCY FILTRATION UNIT BV400.
Time in LCO LCO NOT ENTERED Found During: NORMAL OPERATION
==============================================================
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