ML20236Q672
| ML20236Q672 | |
| Person / Time | |
|---|---|
| Site: | Hope Creek  |
| Issue date: | 11/12/1987 |
| From: | Corbin McNeil Public Service Enterprise Group |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| NLR-N87212, NUDOCS 8711200220 | |
| Download: ML20236Q672 (9) | |
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
- Senior Vice President -
- Nuclear November 12,.1987 NLR-N87212
' 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 from C. A. McNeill, Jr. 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 lE and'non-lE modules and summarizes inservice failures per month by class, assembly type and failure type.
With respect to the~1ast two month period,. August 1987 - September 1987, 12 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, A
m Attachment i
8711200220 871112 PDR ADDCK 05000354 R
'PDR
_rE2 t YL
Document Control Desk 2
11-12-87 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
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PS BAILEY 862 S 0:L I D S T-A T E L0GIC M.0 D U L E
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' OPE. CREEK GENERATING STATION H
BAILEY SOLID: STATE. LOGIC MODULE FAILURES FOR
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AUGUST AND SEPTEMBER, 1987
" ' 12 Modulas Failures - There were 12-SSLM'fa'ilures which
~
occurred in the two month period.
beginning August 1, 1987 through
- September'30, 1987.
Please note that'.3' failures (1 in r
August', 2 in September) directly and immediately resulted from inadvertent personnel errors.
While these; failures'are included above, they.have not been included'in the failure rates as they do not represent random type" failures or failures which are related,to the design, manuf acture or application
.of the module.
' Excluding.these modules from the failure rates will-increase the accuracy of the reliability prediction.
Projected Pailure Rate s
2.39% per year failure rate
- 1) Based upon data from August and
~
September 1987, with 3 and 6 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, :1986 (NLR-N86148).
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1.55% per. year failure rate based upon 35 failures over l
the'last 12 month period.
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Record #:
09-01 Assembly:
DC652 Location:
1 3 S/N: 0462 Fail Date:
09/19/87 Work Order Number:
870918069
' System:
480 VOLT MCC POWER Class: 1E Description of Failure:
BUFFER INPUT NO. 6 FAILED TO THE LOW STATE Affect on System:
FAILURE RESULTED IN FALSE "INOP" INDICATION AND " CHANNEL A FEEDER BREAHER MALFUNCTION " ALARM ON 480 VOLT SYSTEM BREAVER 52-48011.
T i n;e in LCO: LCO NOT ENTERED Found Du-ing: NORMAL OPERATION
==============================-======================================u
Recor d #:
09-02 Assembly:
DC652 Location:
9-8-13 S/N: 0921 Fail Date:
09/24/87 Work Order Number:
87092317e Syst em:
Col 4TAINMENT ATMOSPHERE CNT Class: 1E
' Description of Failure:
MODULE MEMOk1ES A AND B FAILED 10 THE - SET STATE.
1 Affect on System:
MODULE FAILUn'E RESUL1ED IN LOSS OF THE ABIL11 v' TO OPEN THE CONT AINMENT A1MOSPHERE CONTROL PRE-PURGE CLEAN-UP ISOLAllON VALVE 1-GE-HV-4978.
T1me in LCO: LCO NO1 ENTERED Found Durino: NORMAL OPERATION
u=======================================================================
Record #:
09-03 Assembly:
DCoS2 Location:
9-1-3 S/N: 0924 Fail Date:
09/28/87 Work Order Number:
8703050025 System:
CONTROL ROOM COMPLEX Class: 1E Description of Failure:
BUFFER INPUTS 1 AND 2 FAILED LOW.
Affect on System:
MODULE FAILURE RESULTED IN FALSE " LOSS OF POWER" COMPUTER POINT FOR CONTRO CABINETS 9 AND 10 OF DC652.
Time in LCO: L Cr) NOT ENTERED Found During: NORMAL OPERATION
==================================================:===========
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' Recor d #:
09-04 l
Assembiv:
DC653 Location:
8-B-10 S/N: 1463 l
' Fail Date:
09/13/87 Work Order Number:
870810125 l ~ System:
~IURNING GEAR CONTROL Class: NON-1E
- Descripti.on of. Failure:
L BUFFER OUTPUT'NO. 2 IMPROPERLY CYCLED BETWEEN THE HIGH AND LOW STATES.
l Affect on System.
j MODULE FAILURE REEULIED IN FALSE INTERMITTENT'"STOP" INDICATION ON THE j
o L
T i me. i n' LCO: LCD NO1. ENTERED Found During: TROUBLESHOOTING l
======a======u==u=============================================
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Recor d #:
09-05
- Assembly:
AC652 Location:
8-6-15 S/N: 2091 Fail'Date:
09/14/87 Work Order Number:
870904052 System:
SAFETY & TURB AUX CLG Class: 1E Description of Fai l ur e:
LOGIC. INPUT NO. 7 FAILED TO THE LOW STATE.
l Affect on System:
FAILURE RESULTED IN A FALSE " SAFETY AND TURBINE AUXILIARIES COOLING HEAT EXCHANGER AE202 LOW FLOW" ALARM.
Time in LCO: LCO NOT ENTERED Found During: NORMAL OPERATION
=========-======================================================u==,
Record H:
09-06
' Assembly:
AC652 Location: 8 6 S/N: 2430 Fail Date:
09/20/87 Wari. Order tJumb er :
870918104 System:
HIGH PRESSURE COOLANT INJ Class: 1E Description of Failurc:
BUFFER INPUT NO. 6 IMPROPERLY CYCLED HIGH AND LOW.
Affect on' System:
MODULE FAILURE RESULTED IN FALSE INTERMITTENT " CLOSED" INDICATION OF HIGH PRESSURE COOLANT INJECTION VALVE 1-BJ-HV-FOO 1.
Time in LCO: LCD NOT EN1ERED Found Durino: NORMAL OPERATION
=============================================w===============-===========2 i _ _1______
" Record #:
09-07 Assembly:
BC652 Location:
5 8 S/N: 0011 l Fa:1 Dates.
09/04/87-Work Order Number:
870904063 System:
STAT]ON SERVICE WATER Class: 1E Description of Failur e:
MODULE OUTPUT BUFFERS 5,6,7 AND 8 FAILED TO THE LOW STATE AS A RESLILT OF
-INADVERTENT OVERCURRENT OF THE OUTPUT DRIVER DURING LAMP BULB REPLACEMENT.
-Affect on System:
MODULE. FAILURE RESULTED IN LOSS OF " AUTO / LOCKOUT" INDICATION AND CONTROL 0 STATION SERVICE WATER SYSTEM PUMP DISCHARGE VALVE 1-EA-HV-21988.
Time in LCO: LCO NOT EN1ERED Found During: LAMP BULB REPLACEMENT l
==============================================================
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Record 4:
09-08 Assembly:
DC652 Locaticn:
5 8 S/N: 0090 Fail Date:
09/04/07 Work Order Number:
e7090464 System:
SlATION SERVICE WATER Class: 1E I
Description of Failur e:
3 MODULE OUlPUT BUFFERS 5 AND 6 FAILED HIGH AS A RESULT OF OVERCURRENT TO l
THE OUTPUT DRIVER DURING LAMP BULB REPLACEMENT.
I Affect on Svstem:
MODULE FA! LURE CAUEiED " LOCKOUT" CIRCUIT ENERGIZATION ON STATION SERVICE WATER PUMP DISCHAREE VALVE 1-EA-HV-2198D.
T2me in LCO: LCO NOT ENTERED Found During: LAMP BULB REPLACEMENT
================================================e=============
I I
Record #:
08-01 Assembly:
AC652 Location: 4-10-10 S/N: 2349 Fail Date:
08/24/87 Work Order Numcer:
870824089 System:
AUX. BLDG. CHILLED WATER Class: 1E
~ Description of Fai l ur e:
LOGIC INPUT NO. 7 IMPROPERLY CYCLED BETWEEN THE HIGH AND LOW STATES.
Affect on System:
FAILURE RESULTED IN FALSE " START FAILURE" INDICATION AND PROHIBITED AUTO START OF CHILLED WATER PUMP AP414.
Time 2n LCO: LCO NOT ENTERED Found During: NORMAL OPERATION
==============================================================
h________________
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. Record #:
08-02 Assembl y:
CC652 Location:
4 7 S/N: 0603 l
Fail Date:
08/14/87 Work Order Number:
870730044 l
System:
AUX. BLDG. HVAC Class: IE Description of Failure:
BUFFER AND LOGIC OUTPUT NO. 6 FAILED TO THE LOW STATE.
Affect on System:
-FAILURE RESULTED IN FALSE'OUTSIDE AIR DAMPER STATUS INDICATION OF AUXILIAR BUILDING - CONTROL AREA ISOLATION DAMPERS.
.T2me in LCO: LCO NOT' ENTERED Found Durino: NORMAL OPERATION
===================-=========================================
i Record N:
08-03 AsLembiv:
CC652 Location:
4-1-2 S/N: 9 Fa:1 Date:
08/17/87 Wert Order Number:
870817109 System:
CONTROL RODN COMPLEX C1esL: 1E Description of Fe21ure:
BUFFER INFUT NO.
1 FAILED HIGH AND BUFFER INPUT NO. 2 FAILED LOW.
Affect on System:
' FAILURE REEULTED IN LOSS OF CONTROL PONER TD CABINETS 9 $<
10 OF CC652 Ii b [N~EbO: LC5 U5I 5sTEkED
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=============================================
Recoi3 #:
08-04 Assembly:
CC652 Location:
8 3 S/N: 2422 Fail Date:
OD/21/87 Work Order Number:
870727050 System:
SAFELY AUX. COOLING Cl ass : 1E Description of Failure:
(
OUTPUT BUFFER NO. 5 SHORTED TO GROUND AS A RESUL1 OF OVERCURRENT AT THE OUTPUT DRIVER DURING LAMP DULE REPLACEMEN1.
Affect on System:
MODULE FAILURE RESULTED IN FALEE " SAC 5 LOOF B IN SERVICE" INDICATION.
Time in LCO: LCO NOT ENTERED Found Durira: LAM" BULB REPLACEMENT j
j
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