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| number = ML20067B375
| number = ML20067B375
| issue date = 01/08/1991
| issue date = 01/08/1991
| title = Bailey 862 Sys Logic Module Failure Data Rept,Fourth Quarter 1990.
| title = Bailey 862 Sys Logic Module Failure Data Rept,Fourth Quarter 1990
| author name =  
| author name =  
| author affiliation = PUBLIC SERVICE ELECTRIC & GAS CO. OF NEW JERSEY
| author affiliation = PUBLIC SERVICE ELECTRIC & GAS CO. OF NEW JERSEY
Line 17: Line 17:


=Text=
=Text=
{{#Wiki_filter:}}
{{#Wiki_filter:r 3
I HOPE CREEK GENERATING STATION--
EAILEY 862 SYSTEM LOGIC MODULE FAILURE DATA REPORT PERIOD:    FOURTH QUARTER 1990 PREPARED BY:      L                        l fT fgf .
SYSTEM ENCrINEER            DATE APPROVED BY:      [)d4                      /-7 9f TECHNICAL ENGINEER              TATE i
1 PAGE 1                                ,
9102080232 910201                                                  l PDR  ADOCK 05000354 R              PDR L '7(0/7 WLL
 
                  .                                                                                                                                                j 2                  .
l BAILEY SSLM REPORT A.   
 
==SUMMARY==
OF FAILURES BY MONTH DURING-REPORT PERIOD i
OCTOBER 1990
: 1)    10/02/90            1CC653              SLOTL8-6-15              0-2399-          N-0600 INPUT BUFFER #8 FAILED.                                            CONFIRMED FAILURE-W.O. 901001308 PROBLEM: - 1C-P-209,.C RACS PUMP 1 TRIPPED ON LOWJFLOW.'
TOTAL MONTHLY FAILURES = 1                                                                                                i NOVEMBER 1990                                                                                                                  ;
: 1)    11/04/90            1AC652-              SLOT 9-6              0-1241          -N-0617-                              i INPUT BUFFER #5 FAILED.                                            CONFIRMED FAILURE WO 901104088 PROBLEM:        NO OPEN INDICATION FOR 1BEHV-F005A-E21. CORE                                                              .
SPRAY LOOP A CONTAINMENT ISOLATION.'-                                                                                  -j
: 2)    11/08/90            1CC653              SLOT 8-7-6                0-2403-        'N-1379.
INPUT BUFFER #1 FAILED                                            CONFIRMED-FAILURE.
W.O. 901019077 PROBLEM:        DUAL INDICATION ON.-1CGHV-1962A, 2ND; STAGE AIR-
                                          ' EJECTOR A SUCTION.
3). 11/11/90-          1CC653                SLOT'5-4-2              0-1558          N-1232                                ,
INPUT BUFFER #1 FAILED                                            CONFIRMED. FAILURE-                                  "
W.O. 901110095                                                                      .
PROBLEM:          1C-P-137', C SEC COND PUMP,; DUAL: START /STOPn INDICATION WITH PUMP OOS.                                                                          ,
l
: 4)  -11/12/90            1BC653                SLOT 4-7-12              0-1088-        :N-1269 INPUT BUFFER #1 FAILED.                                          L CONFIRMED--- FAILURE-W.O. 901105143-PROBLEM:          1AFHV-1502B1, 6B'FW HTR STARTUP-VENT, DUAL.
l                                          INDICATION.
l                                                                      .                                                          .
: 5)    11/13/90:          1BC653-              SLOT-12-5            aO-1694          N-0603i                              1 OUTPUT BUFFERS #2,4,6 FAILED,                                    : CONFIRMED. FAILURE W.O. 900927151.
PROBLEM:        - 1F2V-212, DRYWELL-COOLER. FAN INDICATED-BOTH STOP AND START.HI WHEN FAN WAS RUNNING.
: 6)    11/21/90.          ~1BC652              SLOT:8-9-5'              O-0212'        :N-1362 INPUT BUFFER-#5' FAILED                                            CONFIRMED FAILURE W.O. 900208293
                                          . PROBLEM:        1BDHV-4405 WOULD NOT~SHOW OPEN. ACTUAL MODULE-FAILURE WOULD HAVE:AFFECTED 1FCHV-F060-E51,' RCIC' VACUUM ~
                                        -PUMP DISCHARGE VALVE. THE LATTER-VALVE WOULD.HAVELALWAYSj
                                          'HAD AN OPEN INDICATION.
1 PAGE 2-                                                                      .
A y++r'-  ?  t > 9M+-        g          -
e      g'N                p vg cir                      W w-p em    4 91P gr-* e  e-        as ee e
: 7)  11/27/90            1AC652    SLOT 8-9-7      O-2'410-              N-1125                        ,
INPUT BUFFER #6 FAILED:                      CONFIRMED FAILURE W.O. 901127093 PROBLEM:- 1FDHV-F001-E41, HPCI TURBINE STEAM SUPPLY VALVE, HAD FLASHING OVLD/PWR FAIL INDICATION WHICH WOULD NOT ACKNOWLEDGE.
TOTAL MONTHLY FAILURES = 7 DECEMBER 1990
: 1)  12/05/90          -1CC653    SLOT 8-6-8      O-1274        . N-0358 INPUT BUFFER #8 FAILED                        CONFIRMED FAILURE-W.O. 901119107 PROBLEM:      1C-S-100, C RFPT TURNING GEAR, WOULD NOT-START:
WHEN REQUESTED FROM THE CONTROL ROOM.
i TOTAL MONTHLY FAILURES = 1 TOTAL QUARTERLY FAILURES = 9 SSLM'8 B. FAILURE RATE DATA
: 1)  -25 CONFIRMED FAILURES.FROM 01/01/90 THRU 12/31/90.
: 2)    2278 SSLM POPULATION
: 3)    ANNUAL FAILURS RATE PERCENTAGE:
: a. 25 + 2278 = 0.01009 x 100 = 1.10 %
: 4)    MEAN TIME BETWEEN FAILURES' DETERMINATION:
MTBF FROM.01/01/90 THRU 12/31/90.-                                                        ,
: a. 12 MONTH SERVICE HOURS-= 8760 HOURS
: b. TOTAL MODULE SERVICE HOURS f8760 X 2278 = 19.95'x 106'
                                  '19.95 x 106 +.25 FAILURES = 798,211 HOURS-                                          t
: c. 25-+ 19.95 x 106 = 1.25 FAILURES PER MILLION LHOURS' FAILURE RATE.
C. COMPARISON STANDARD,
: 1)    THE lEEE 50_Q-STANDARD-EXPECTED-FAILURE RATE OF SOLIDL STATE COMPUTATION DEVICES IS EQUAL TO_1.19 FAILURES                                      R EIE'MILLION HOURS FAILURE BATE 2                                                              '
l PAGE 3-                                                            l I
  ~
 
r 7
  -1                                                                                      i
                                                                                          -i
                *-~-
    .  ..s...
a
(-                                                                                -
: 2)  THE'HCfd BAILEY 312. SSLM FAILURE RATE-FROM JAH 1990 THRU QEC 1990 IS-EQUAL TO-1.25 FAILURES EIB MILLION HOURS FAILURE RATE.                                    ,
1 D.  -ANALYSIS
: 1)  HCGS BAILEY 862 SSLM FAILURE RATE APPEARS TO.HAVE            i STABILIZED'IAW-IEEE 500 STANDARD._
l
: 2)  NO CONFIRMED FAILURE RESULTED'IN INOPERABILITY OFe ANY SAFETY RELATED FUNCTION. ALL FAILURES RELATED TO SAFETY RELATED'FUNCTIONSLWERE-INDICATION PROBLEMS ONLY. THOSE VALVES AFFECTED-OPERATED'AS PER DESIGN.-
E. RECOMMENDATIONS-
: 1)  NONE J
P PAGE 4-
                        .                            -}}

Latest revision as of 12:37, 6 September 2020

Bailey 862 Sys Logic Module Failure Data Rept,Fourth Quarter 1990
ML20067B375
Person / Time
Site: Hope Creek PSEG icon.png
Issue date: 01/08/1991
From:
Public Service Enterprise Group
To:
Shared Package
ML20067B373 List:
References
NUDOCS 9102080232
Download: ML20067B375 (4)
v • d • e


Text

r 3

I HOPE CREEK GENERATING STATION--

EAILEY 862 SYSTEM LOGIC MODULE FAILURE DATA REPORT PERIOD: FOURTH QUARTER 1990 PREPARED BY: L l fT fgf .

SYSTEM ENCrINEER DATE APPROVED BY: [)d4 /-7 9f TECHNICAL ENGINEER TATE i

1 PAGE 1 ,

9102080232 910201 l PDR ADOCK 05000354 R PDR L '7(0/7 WLL

. j 2 .

l BAILEY SSLM REPORT A.

SUMMARY

OF FAILURES BY MONTH DURING-REPORT PERIOD i

OCTOBER 1990

1) 10/02/90 1CC653 SLOTL8-6-15 0-2399- N-0600 INPUT BUFFER #8 FAILED. CONFIRMED FAILURE-W.O. 901001308 PROBLEM: - 1C-P-209,.C RACS PUMP 1 TRIPPED ON LOWJFLOW.'

TOTAL MONTHLY FAILURES = 1 i NOVEMBER 1990  ;

1) 11/04/90 1AC652- SLOT 9-6 0-1241 -N-0617- i INPUT BUFFER #5 FAILED. CONFIRMED FAILURE WO 901104088 PROBLEM: NO OPEN INDICATION FOR 1BEHV-F005A-E21. CORE .

SPRAY LOOP A CONTAINMENT ISOLATION.'- -j

2) 11/08/90 1CC653 SLOT 8-7-6 0-2403- 'N-1379.

INPUT BUFFER #1 FAILED CONFIRMED-FAILURE.

W.O. 901019077 PROBLEM: DUAL INDICATION ON.-1CGHV-1962A, 2ND; STAGE AIR-

' EJECTOR A SUCTION.

3). 11/11/90- 1CC653 SLOT'5-4-2 0-1558 N-1232 ,

INPUT BUFFER #1 FAILED CONFIRMED. FAILURE- "

W.O. 901110095 .

PROBLEM: 1C-P-137', C SEC COND PUMP,; DUAL: START /STOPn INDICATION WITH PUMP OOS. ,

l

4) -11/12/90 1BC653 SLOT 4-7-12 0-1088- :N-1269 INPUT BUFFER #1 FAILED. L CONFIRMED--- FAILURE-W.O. 901105143-PROBLEM: 1AFHV-1502B1, 6B'FW HTR STARTUP-VENT, DUAL.

l INDICATION.

l . .

5) 11/13/90: 1BC653- SLOT-12-5 aO-1694 N-0603i 1 OUTPUT BUFFERS #2,4,6 FAILED,  : CONFIRMED. FAILURE W.O. 900927151.

PROBLEM: - 1F2V-212, DRYWELL-COOLER. FAN INDICATED-BOTH STOP AND START.HI WHEN FAN WAS RUNNING.

6) 11/21/90. ~1BC652 SLOT:8-9-5' O-0212' :N-1362 INPUT BUFFER-#5' FAILED CONFIRMED FAILURE W.O. 900208293

. PROBLEM: 1BDHV-4405 WOULD NOT~SHOW OPEN. ACTUAL MODULE-FAILURE WOULD HAVE:AFFECTED 1FCHV-F060-E51,' RCIC' VACUUM ~

-PUMP DISCHARGE VALVE. THE LATTER-VALVE WOULD.HAVELALWAYSj

'HAD AN OPEN INDICATION.

1 PAGE 2- .

A y++r'-  ? t > 9M+- g -

e g'N p vg cir W w-p em 4 91P gr-* e e- as ee e

7) 11/27/90 1AC652 SLOT 8-9-7 O-2'410- N-1125 ,

INPUT BUFFER #6 FAILED: CONFIRMED FAILURE W.O. 901127093 PROBLEM:- 1FDHV-F001-E41, HPCI TURBINE STEAM SUPPLY VALVE, HAD FLASHING OVLD/PWR FAIL INDICATION WHICH WOULD NOT ACKNOWLEDGE.

TOTAL MONTHLY FAILURES = 7 DECEMBER 1990

1) 12/05/90 -1CC653 SLOT 8-6-8 O-1274 . N-0358 INPUT BUFFER #8 FAILED CONFIRMED FAILURE-W.O. 901119107 PROBLEM: 1C-S-100, C RFPT TURNING GEAR, WOULD NOT-START:

WHEN REQUESTED FROM THE CONTROL ROOM.

i TOTAL MONTHLY FAILURES = 1 TOTAL QUARTERLY FAILURES = 9 SSLM'8 B. FAILURE RATE DATA

1) -25 CONFIRMED FAILURES.FROM 01/01/90 THRU 12/31/90.
2) 2278 SSLM POPULATION
3) ANNUAL FAILURS RATE PERCENTAGE:
a. 25 + 2278 = 0.01009 x 100 = 1.10 %
4) MEAN TIME BETWEEN FAILURES' DETERMINATION:

MTBF FROM.01/01/90 THRU 12/31/90.- ,

a. 12 MONTH SERVICE HOURS-= 8760 HOURS
b. TOTAL MODULE SERVICE HOURS f8760 X 2278 = 19.95'x 106'

'19.95 x 106 +.25 FAILURES = 798,211 HOURS- t

c. 25-+ 19.95 x 106 = 1.25 FAILURES PER MILLION LHOURS' FAILURE RATE.

C. COMPARISON STANDARD,

1) THE lEEE 50_Q-STANDARD-EXPECTED-FAILURE RATE OF SOLIDL STATE COMPUTATION DEVICES IS EQUAL TO_1.19 FAILURES R EIE'MILLION HOURS FAILURE BATE 2 '

l PAGE 3- l I

~

r 7

-1 i

-i

  • -~-

. ..s...

a

(- -

2) THE'HCfd BAILEY 312. SSLM FAILURE RATE-FROM JAH 1990 THRU QEC 1990 IS-EQUAL TO-1.25 FAILURES EIB MILLION HOURS FAILURE RATE. ,

1 D. -ANALYSIS

1) HCGS BAILEY 862 SSLM FAILURE RATE APPEARS TO.HAVE i STABILIZED'IAW-IEEE 500 STANDARD._

l

2) NO CONFIRMED FAILURE RESULTED'IN INOPERABILITY OFe ANY SAFETY RELATED FUNCTION. ALL FAILURES RELATED TO SAFETY RELATED'FUNCTIONSLWERE-INDICATION PROBLEMS ONLY. THOSE VALVES AFFECTED-OPERATED'AS PER DESIGN.-

E. RECOMMENDATIONS-

1) NONE J

P PAGE 4-

. -

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