ML20196A498
| ML20196A498 | |
| Person / Time | |
|---|---|
| Site: | Hope Creek  |
| Issue date: | 01/28/1988 |
| From: | Corbin McNeil Public Service Enterprise Group |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| NLR-N87241, NUDOCS 8802050071 | |
| Download: ML20196A498 (8) | |
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Public Service Electric arw1 Gao company Corbin A. McNeill, Jr.
Public Service Electric and Gas Company P.O. Box 236, Hancocks Bridge, NJ 08038 609339 4800 Sensor Vce Prescent.
Nvcisar January 28, 1988 NLR-N87241 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 f.n the Public Service Electric and Gas Company (PSE&G) letter from C. A. McNeill, Jr. 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 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, October 1987 - November 1987, 11 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 nuestions on this transmittal, do not hesitate to call.
Sincerely, y
Low 4
asm Attachment I
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'\\'
B002050071 1
PDR ADOCM 354s R
Document Control Desk 2
01/28/88 C
Mr. G. W. Rivenbark USNRC Licensing Project Manager Mr.
R. W. Borchardt USNRC Senior Resident Inspector Mr.
W. T.
Russell, Administrator USNRC Region I Mr.
D.
M.
Scott, Chief Bureau of Nuclear Engineering Department of Environmental Protection 380 Scotch Road Trenton, NJ 08628 1
i
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i BAILEY 862 S0 LID STATE L0GIC M0DULE BI-MONTHLY F A I L il R E REP 0RT H0PE CREEK GENERATING STATI0N DECEMBER 23, 1987 I
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h HOPE CREEK GENERATING STATION-BAILEY SOLID STATE LOGIC MODULE FAILURES POR OCTOBER AND NOVEMBER, 1987 4
11 Modules Failures - There were 11 SSLM failures which occurred in the two month period beginning October 1, 1987 through November 30, 1987.
Please note that 1 failure which j
occurred in October directly and immediately resulted from l
inadvertent personnel error.
While this failure is included above, it has not been included in the failure rates as it does not represent a random type failure or failure which is related to the design, i
manufacture or application of the module.
Excluding this module from the failure rates will increase the accuracy of the reliability prediction.
SSLM Failure Rate Information I
2.65% per year failure rate 1)
Based upon data from October and November 1987, with 7 and 3 failures i
respectively, for a total population l
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, 1986 (NLR-N86148).
i 1.72% per year failure rate based upon 39 failures over j
the last 12 month period.
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EAILEY M.~>
55,1.tA F AILU RE R ATE.
12 MONTII ROI LING AVERAM ENDHG NOV. 87 y.
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DEC JAN FEB MAR APR MAY JUN JLY AUG SEP OCT NOV RC4 LNG AVERAq
- DATA STARTS MAR 86 i
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Record w:
10-01 Acpsmbly:
DC652 Location: 5-6-11 S/N: 0540 g
Feil Date:
10/08/87 Work Order Number:
870925046 Syotcm:
STATION SERVICE WATER Class: 1E Doccription of Failure:
MODULE OUTPUT BUFFERS 1 AND 2 FAILED TO THE LOW STATE l Affoct on System:
MODULE FAILURE RESULTED IN FALSE "OPEN/ CLOSED" STATUS INDICATION ON REACTOR AUXILIARISS COOLING SYSTEM (RACS) HEAT EXCHANGER OUTLET VALVE
,HV-2346.
~ Timo in LCO: LCO NOT ENTERED Fotnd During: NORMAL OPERATION
==================================.-===========================
Record #:
10-02 Assembly:
-DC653 Location' 9 8 S/N: 1559 Fcil Date:
10/29/87 Work Order Number:
871027116 System:
CIRCULATING WATER Class: NON-1E Daccription of Failure:
MODULE INPUT BUFFER NO. 1 FAILED TO THE HIGH STATE 1 Affect on System:
' THE M3DULE FAILURE CREATED A FALSE DISCHARGE VALVE 100% CLOSED SIGNAL IMTO SHE CONTROL LOGIC FOR CIRCULATING WATER PUMP DP501.
Time in LCO: LCO NOT ENTERED Found During: NORMAL OPERATION
==============================================================
' Record #:
10-03 Assemuly:
BC653 Location: 12-4-10 S/N: 1649 Fail Date:
10/02/87 Work Order Number:
871001121 i
System:
DRYWELL VENTILATION Class: NON-1E 2 Doscription of Failure:
LOGIC INPUT NO. 2 FAILED TO THE HIGH STATE.
Affect on System:
THE MODULE FAILURE RESULTED IN FALSE "AUTO" STAYUS INDICATION ON DRYWELL COOLER FAN D2V212.
1 i
i i Time in LCO: LCO NOT ENTERED Found During: NORMAL OPERATION g==========================================================================
Record #:
10-04 I
Assembly:
CC653 Location: 12 3 S/N: 2017
. Fail Date:
10/04/87 Work Order Number:
870924061 j System:
PLANT CHILLED WATER Class: NON-1E i
, Dsocription of Failure:
i j MODULE INPUT BUFFER NO. 8 FAILED TO THE LOW STATE.
j
' Affoct on System:
- THE MODULE FAILURE RESULTED IN A FALSE "CHILLER COMPRESSOR CK111
- MALFUNCTION" ALARM.
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I Time in LCO: LCO NOT ENTERED Found During: NORMAL OPERATION i
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. Rccord #:
10-05
'fAnsembly:
DC652 Location: 12 6 S/N: 2266 Fait Date:
10/26/87.
Work Order Number:
870919041 l
Syctcm:
CONTROL ROOM COMPLEX Class: 1E Daccription of Failure:
MODULE BUFFER INPUT NO. 6 FAILED TO THE HIGH STATE.
l Affoct on System:
MODULE FAILURE RESULTED IN FALSE "SOLID / LIQUID RADWASTE DIGITAL LOGIC SYSTEM OUT OF SERVICE" INDICATION AND ALARM.
I Timo in LCO: LCO NOT ENTERED Found During: NORMAL OPERATION
==============================================================
Record #:
10-06 i
Accombly:
AC653 Location:
8 4 S/N: 1090 Fail Date:
10/06/87 Work Order Number:
870928104 i
i Syotem:
RX FEEDPUMP TURB. STEAM Class: NON-1E Description of Failure:
MODULE INPUT BUFFER NO. 5 FAILED TO THE HIGH STATE.
1 4
Affect on System:
'THE MODULE FAILURE RESULTED IN AN IMPROPER OPEN COMMAND TO REACTOR FEEDPUMP TURBINE "A" STEAM SUPPLY DRAIN VALVE HV-3714A.
l Time in LCO: LCO NOT ENTERED Found During: NORMAL OPERATION
================================================c=============
Record #:
10-07 A00embly:
BC652 Location: 9 2 S/N: 0532 Fail Date:
10/30/87 Work Order Number:
871012027 System:
CNTNMT ATMOSPHERE CONTROL Class: 1E Description of Failure:
MODULE LOGIC OUTPUTS 3 AND 4 FAILED HIGH AND LOW RESPECTIVELY.
Affect on System:
1 MODULE FAILURE RESULTED IN A FALSE "H2/02 ANALYZER TROUBLE" ALARM AND COMPUTER POINT.
Time in LCO: LCO NOT ENTERED Found During: SURVEILLANCE j
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Record #:
11-01 i
lAsahmbly:
CC653 Location: 12-4-12 S/N: 1764 i
Foil Date:
11/17/87 Work Order Number:
871112062 1
System:
PLANT CHILLED WATER Class: NON-1E
[
i Deccription of Failure:
(
i l THE LOGIC STATE OF MODULE OUTPUT NO.2 DID NOT MATCH THE LOGIC INPUT l COMBINATION. PROBLEM WAS FOUND TO BE INTERMITTENT.
I Affect on System:
THE MODULE FAILURE RESULTED 2N FALSE VALVE STATUS ON THE PLANT COMPUTER
, FOR REACTOR AUXILIARIES COOLING SUPPLY / RETURN VALVES 1-GB-HV-9530A1 I AND 1-GB-HV-9530A3.
{
Tima in LCO: LCO NOT ENTERr.D Found During: NORMAL OPERATION l..........................c................................................
1 1 Record #:
11-02 l Assombly:
AC652 Location:
9-8-13 S/N: 2028
' Feil Date:
11/18/87 Work Order Number:
WR-A0047840 l
System:
CNTNMT ATMOSPHERE CONTROL Class: 1E i
Description of Failure:
THE LOGIC STATES OF BUFFER OUTPUT NO.'1 AND MEMORY "A" DID NOT MATCH THE l INPUT LOGIC CONFIGURATION.
' Affect on System:
THE MODULE FAILURE RESULTED IN LOSS OF "OPEN" STATUS INDICATION ON CONTAINMENT ATMOSPHERE CONTROL VACUUM RELIEF VALVE HV-5029.
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l l Tims in LCO: LCO NOT ENTERED Found During: NORMAL OPERATION i..........u...........x...................................................
Record #:
11-03 Assembly:
DC652 Location:
4 2 S/N: 0261 l
i Fail Date:
11/27/87 Work Order Number:
871118159 i Systom:
Class: 1E Doscription of Failure:
l MODULE MEMORY B FAILED TO SET 1
Affect on System:
MODULE FAILURE RESULTED IN LOSS OF "PROCESS VARIABLE" ALARM INDICATION ON AUXILIARY BUILDING - CONTROL AREA SUPPLY FAN BVH-403.
Time in LCO: LCO NOT ENTERED Found During: NORMAL OPERATION l
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