ML20151E399
| ML20151E399 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 03/15/1988 |
| From: | Pleniewicz R COMMONWEALTH EDISON CO. |
| To: | Davis A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| BYRON-88-0177, BYRON-88-177, NUDOCS 8804150224 | |
| Download: ML20151E399 (18) | |
Text
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. Commonwzith Edison ron Nucint Stition 50 North Gstrnan Church Road
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Byron, Illinois 61010 PR10alty Rourigg v
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March 15, 1988 m
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<'rN Mr. A. Bert Davis Regional Adrainistrator Region III U.S. Nuclear Regulatory Comission 799 Roosevelt Road Glen Ellyn, Illinois 60137
Dear Sir,
This report is submitted in accordance with Byron Station Unit 1 Operating License NPF-37 Appendix A, Technical Specification 4.8.1.1.3, reporting of diesel genccator failures.
This report addresses one valid test and failure experienced on the IB Diesel Generator (DG). The criteria to determine valid tests and failures is in accordanco with rection C.2.e of Regulatory Guide 1.108.
Attachment A, DVR 6-1-88-018, is a sumary of the current 1B DG failure. This failure is the second failure within the last 20 valid tests for the IB DG, therefore, the IB DG has been placed on a weekly test interval. This failure was also the seventh failure within the laat one hundred Unit 1 DG valid tests. Therefore, this letter is supplemented with the additional information requested by Regulatory Guids 1.108 C 3.b. is a sumary of all tests that occurred within the time period over which the last one hundred valid tests were performed.
Corrective actions have been taken, and are planned, to increa.se the reliability of the Unit 1 diesel generators. Four of the seven failures during the last hundred valid tests were the result of slow engine starts. A major contributor to the slow starts has been a loss of fuel prime.
To correct this problem, soft seat check valves were added in the fuel oil supply line. In addition, a modification to reroute the fuel oil supply line with a loop seal, and a anti-syphon vent will be completed during the 9/88 refueling outage.
Two of the seven failt.ces have been caused by intermittent operation of a
)
relay used in the governor control circuit. A modification to replace the subject relay with a more sensitive relay is currently being designed. This reodification will be implemented during the 9/88 refueling outage. The other failure was due to a fuel oil leak at a fuel injection pump. No long term
{
corrective actions were taken as a result of that event as the event was considered an isolated failure.
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Byron Station has stated before, and still believes, that the overall a
reliability of electric power to engineered safety feature equipment is adequate. The primary source of electric power, the Unit 1 system auxiliary transformers and associated breakers, have experienced 100% reliability since receipt of the Unit 1 operating license. The backup source of offsight power,the Unit 2 system auxiliary transformers and associated breakers, have experienced three unrelated failures during this same period.
In all cases the Unit 2 diesel generators functioned per design. The reliability of offsite power and the associated transformers and breakers, in addition to the 3
confidence Byron Station has in the future operation of the emergency diesel generators, provides the basis for continued plant operation.
($
+
R. Pleniewicz
[
1 Station Managet i
f Byron Nuclear Power Station 1
RP/MMR/bb (1892M/0217M)
Attachments 1
cc:
P. Brochman, NRC Senior Resident Inspector U.S. NRC Document Control Desk, Washington D.C.
INPO Record Center CECO Distribution List l
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OtV!AT!03 REPORT OVR NO.
06 - 01 88 - 018 STA UNIT YEAR NO.
Pahl TITLE OF DEVIATION OCCURREO 1/2a/sa 1116 la DG STANDARD LOAD (ENSOR AND 4EX1 RELAY rAILuar DATE TIME
$YSTEM AFFECTED PLANT STATU$ AT TIME OF EVENT TESTING
,g Yt3 N0 Moct. 1.... POWER (s). 3 a WORK RtoutST NO.
l X l l
i og Ot$CRIPTION OF (VENT Ouring Surv. Test Run 1805 8.1.1.2.a-2, 18 DG was started successfully in 7.1 sec. I then closed the output breaker and load started to increase (frasa OKW) at a constant rate. I atti.epted to reduce KW loading with Governor Control Switch, but the DG kept on loading uncontrollably. The DG was tripped at approntmatd y $800 KW utth load still increasing, from MC8 C/5.
POTENTIALLY $!GNIFICANT EVENT PER N50 OIRECTIVE A U7 YES M
g gg g 10CFR$0.72 NRC REW PHONE l
l (d lendis 1/28/88 NOTIFICATION MADE l
l l X l RESPdN51 ALE SUPERVISOR D?TE PART 2 l QPERATING (NGINEER'S C0pt9ENTS NONE NON REPORTA8Lt EVENT g y g NOTIFICATION g
g 10 DAY REPORTA8LE/10CFR_ _ _ _ _ _ _ _
REGION !!!
OATE TIME
- 7. J. Maiman 1/29/as 1251
$ DAY REPORT PER 10CFR21 l
MSO DATE TIME ANNUAL /SPECIAL REPORT REQUIRtc
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CECO CORPORATE NOTIFICATION MADE g
g IF ABOVE NOTIFICATION !$ PER 10CFR21 A.I.R. f_ _ _,,,,,,
TELECOPY L.E.R.,- - - - - - - - -
eteo coRPou fr e,rrett oAfr Tr r PRELIMINARY REPORT COMPLtito AND REVIEWED J. W. tehrock 1/29/na j
OPERAffkG ENGINEER DATE INVESTIGATION REPORT & RESOLUTION ///p ACCEPTIO SY STATION REVIEW
/A/K/
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W. 2/$/r7 RESOLUTION APPROVt0 ANO
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AUTHORIZED FOR O!$TR180 TION
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OAft 84-$176 (Forte 1$-$2-1) 11-10-85
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s (1918M/0218M)
OEVIATION INVE$T!GATION REPORT TITLE PaGE 1R DG STANDARD LOAD $[N10R AND 4tX3 RELAY FAILURE 1 10Fl 0 1 3..
EVENT DATE DIR NUMAER REPORT DATE y/
g//
$EQUENTIAL REV!!!0N MONTH DAY YEAR STA UNIT YEAR
/
NLME R NUMER MONTH DAY YEAR 1
POWER 01 1 21 a al a o is 0 11 a la 0 11 Ia 0 10 l
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of 91 A CONTACT FOR THIS DIR NAME TELEPHONE NtMER AREA CODE
_gjl1 Kouba. Assistant Tech Staf f tuov.
Ext. 2274 Rl1 11 2 l3 l4 1-l E IaI4 l 1 COMPLETE ONE LINE FOR EACH COMPONE UAE OficRIRt0 IN THIS REPORT CAUSE
$YSTEM CQHPONENT MANUFAC-REPORTABLE CAUSE 3Y$ FEM COMPONENT MANUFAC-REPORTABLE TURER TO NPF01 TURER TO NPe01 X
t IK IR lL lY
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/l/l/l/ W l2 19 lo Y
I l I l I imPPLEMENTAL REPORT EXPtcTED MONTH DAY YEAR
$USMIS$10N I Yt1 fif vas. comelate EYPteft0 SU$ MISSION DATE)
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TEXT A.
PLANT CONDITIONS PRIOR 70 EVENT:
Event Date/ Time 1/2a/ta /
112a Unit 1 MODE 1 Power onaration Rx Power _33L,.
RCs (As] Temperature / Pressure Normal Onaratina Unit 2 M00E Power onaration Rx Power 121 RCS (A8] Temperature / Pressure lLnraal onaratine_
B.
DESCRIPTION or tyrNT:
On 1/28/84, at 1124 with Unit I in Mode 1 at 981 Reactor Power, the 1B Diesel Generator (EK](DG) was started per monthly ByrrA Operability surveillance, 180$ 4.1.1.2.a-2, following a governor oil change. A successful maintenance run had been perforacd ineuediately preceding the operability run. Following a successful start, the Nuclear Station operator (NS0) (Licensed) closed the output breaker and the IB OG-j began to load uncontrollably. Several attempts were made to reduce the KW loading with the governor j
control switch, however none were successful. The IB OG output breaker was manually tripped open f rom the 1
main control board switch when the generator load reached 5800 KW.
Limiting Condition for operation Action Rtquirement (LCOAR) 180$ 8.1.1-13 had been initiated prior to the governor oil change. therefore, no further actions were required. There were no systems or components inoperable prior to this f ailure that contributed to the failure.
Due to previous experience with failures of this nature. the 4tX3 relay was removed and bench tested. The 4EX3 relay aligns the electronic governor with a fixed resistor in the energency nuode for a constant speed reference. In the testing mode the relty lines up a motorized potentiometer for variable speed reference.
Troubleshooting revealed a slight resistance across the normally closed contacts (test mode contacts) and j
significant resistance across the normally open contacts (emergency g de contacts) once the relay was j
energized. Due to this inconsistent operation of the relay, the relay was replaced. The replacement relay was cleaned nd bench tested to insure proper operation.
I I
(1314M/0218M)
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DEVIATION INVESTICATION REPORT TEXT C0%f!RUATION TITit DIR Ntsett Pact _
5(QU(NT!At REV!$10N STA UNIT YEAR NLDate NuHeft le OG STANDARD LOAD tt41DR AND 4tX3 RELAY FAILURE O 16 01 1 8 ls 0l1 lA 0 l0 2
0F 0 13 i
TEXT B.
OtscRIPitou or tytNT: (Continued)
Following the replacement of the subject relay. the IB DG was started for a asintenance run. The output breaker was closed and the diesel was operated at various loads for approximately thirty minutes. No abnormal conditions were detected. At 2039 on 1/28/88, the 18 OG was restarted for the monthly operability surveillance. $1x minutes into the run. load oscillations of 200-400 KW were observed by the M50.
Electrical maintenance personnel were notified and troubleshooting was again initiated. With the diesel running in a loaded condition a jumper was placed across the normally closed contacts on the 4EX3 relay.
The junger eliminated the possibility that the newly installed atX3 relay was the cause of the load oscillations. The large load swings continued with tie jtsaper in place so the IB DG was shutdown at 2227.
During this 108 minute run load oscillations ranged from 200-1000 KW.
Another maintenance run was performed at 2345 with no further conclusions betrg made.
Based on a review of a similar occurrence at Braidwood Nuclear Power Station (Docket Number 456) (LER 87-039) the IB OG was restarted for a troubleshooting run at 0457 on 1/28/88. A six channel strip chart recorder was connected across several locations within the altetronic governor to monitor governor l
performanca. Data was collected and the DG was shutdown at 0604 Due to the Brat hood experiences with OG load swings, two tra1 &ood engineers were brought to the site to assist in the investigation. In addition, a Cooper Bessemer governor representative was contacted for assistance. Based on discussions with all personnel involved three sure actions were taken. The current transformers were lamped to verify circuit integrity. No abnormal conditions were found. All terminal connections within the electronic governor were checked for tightness and again no abnormal conditions were found. The IB 04 was again started at 1640 for further data c311ection and based on a review of all data collected, it was decided to replace the standard load sensor module within the electronit, governor.
Following replacement of the standard load sensor module the it OG was restarted at 1200 on 1/29/88 for a maintenance run. During this run, proper operation of the load sensor was verified. In addition, p M r operation of the 4EX3 relay the 3!M relay, and the motorized potentiometer were verified. One small load swing was observed during a large voltage aspere reactive (VAR) adjustment from the control room. A conversation with the veltage regulator specialist at the Ccs.lonwealth Edison Technical Center revealed that the load swing was not an abnormal reaction to the VAR swing.
The maintenance run was terminated at 0005 on 1/30/88. Following an extensive review of the data collected. the troubleshooting performed, and the corrective actions taken, it was 1ecided to start the it OG per the monthly operability surve11)ance. During the surveillance, no load oscillations were observed.
At 0600 on 1/30/88, the surveillance was successfully con 91sted and the LC0AR was esited.
C.
cAust or tyrkT:
j The root cause for this failure is twofold. The initial failure on 1/28/84 at 1124, was caused by a faulty
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4EX3 relay and intermittent operation of the standard load sensor. The load swings experienced following the replacement of the 4EX3 relay are attributed to intermittent operation of the standard load sensor only. Due to the inconsistent resistance values observed during bench testing of the removed 4EX3 relay.
it cannot be determined if the resistance would have af fected the DG in the emergency mode. Ti.orefore, per Regulatory Guide 1.108, section C.2.e. this failure has been deemed a Valid Test and Failure.
I I
1 l
(191tM/021aM) l
DEv!ATION INVEST!GATION REPORT TEXT CONTINUATION TITLE DIR NUMMER PACE
$EQUENTIAL R EV!$10N STA UNIT YEAR NUMBER NUMeER la DG 1TANDaRD LOAD SENSCR AND 4EX3 RELAY FAILURE O 16 0 11 A la olI lB 0l0 1
0F 0l1 TEXT O.
SAFETY ANALY1ft:
There were no safety conseguences as a result of this event. The 1A Diesel Generator was fully operable Juring tt.e event and could have provided emergenc;' power if required. In addition, the 2A and 28 Diesel Generators were fully operable. and could have been crosstied to Unit i if necessary.
E.
totaECTIVE ACT Qg1:
The standard load sensor and the 4EX3 relay were renoved and replaced. The Diesel Generator war. tested and declared operable at 0600 on 1/30/88. Pursuant to Technical Specification 4.8.1.1.2.a. the 18 OG has been placed on a weekly test interval.
F.
PREVIOUS occURRENcts:
There have been no previous failures of the standard load sensor at Byron Station. However, there have been several instances of unstable load control.
DYR NUMBER llILE 6-1-85-323 1R Diesel !sochronous Mode 6-1-86-044 12 OG Erratic Governor Operation 6-1-86-175 IB JG High Jacket Water Temperature and Incomplete Start 6-1-87-158 IB OG Inoperable Due to Failed Potentiometer NRC Special Report 15 OG 4EX3 Relay Failure. Letter dated 10/27/87 G.
t0MPohENT FAILUKE DATA:
a)
MANUFACTURER NMNCLAftRE M00EL Nl seer IfG PART NLPGER Woodward Governor Eltetronic Governor 2101 8270-440 i
Agastat Relay GPOR N/A b)
RESULTS OF NPROS SEAffM' Not Applicable c)
RESULTS OF Mba 1EARCH1 There are no NWR's previously written for the standard load sensor f ailure.
f I
I (191 W4/02194)
ATTACHMENT B VALID TESTS AND FAILURES:
(I,II,III...)
VALID SUCCESSFUL TESTS:
(1,2,3,...)
DATE ACTIVITY l.
02/28/86 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine loaded for 71 minutes. Valid successful test.
(1) 2.
03/13/86 lb DG Quarterly Emergency Start Surveillance, IBOS 3.2.1-816.
Engine loaded following surveillance to bring temperatures to normal.
Engine tripped due to a failed isochronous relay.
Failure isolated to a test mode failure only.
Invalid test.
3.
03/14/86 1B DG Maintenance run.
Invalid test.
4.
03/14/86 1B DG Quarterly Emergency Start and Monthly Operability Surveillances 1BOS 3.2.1-816, and 1BOS 8.1.1.2.a-2.
Engine loaded for 69 minutes.
Valid successful test.
(2) 5.
03/14/86 1A DG Quarte-ly Emergency Start and Monthly Operability 4
Surveillances, IBOS 3.2.1-606 and 1BOS 8.1.1.2.a-1.
Engine loaded for 71 minutes.
Valid successful test.
(3) t 6.
03/15/86 1B DG ru' to taks vibration data.
Engine loaded for 63 minutes. Valid successful test.
(4) 7.
03/31/86 1A DG Monthly Operability Surveillance, 1BOS 8.1.1.2.a-l.
i Engine loaded for 69 minutes. Valid successf'd test.
(5) 8.
04/14/86 1B DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
Engine loaded for 72 minutes. Valid successful test.
(6) 9.
04/15/86 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-l.
Engine loaded for 73 minutes.
Valid successful test.
(7) i 10.
04/20/86 1A DG Semi-Annual Opecability Surveillance, IBOS 8.1.1.2.a-3.
l Engine loaded for 64 minutes. Valid successful test.
(8) 5 1
11.
04/30/86 1A DG Semi-Annual Operability Surveillance, IBOS 8.1.1.2.a-3.
l Engine loaded for 67 minutes.
Valid successful test.
(9) l 12.
04/30/86 1B DG Semi-Annual Operability Surveillance, IBOS 8.1.1.2.a-4.
4 Engine failed to reach rated speed, voltage, and frequency in i
10 seconds. Valid test and failure.
(I) ;
(1892M/0217M) i m
DATE ACTIVITY 13.
04/30/86 IB DG Semi-Annual Operability Surveillance, IBOS 8.1.1.2.a-4.
Engine loaded for 86 minutes. Valid successful test.
(10) 14.
05/10/86 1B DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
Ingine loaded for 63 minutes. Valid successful test.
(11) 15 05/16/86 1B DG Quarterly Emergency Start Surveillance, IBOS 3.2.1-816.
Engine not loaded.
Invalid test.
16.
05/19/86 1A DG Quarterly Emergency Start Surveillance, IBOS 3.2.1-806.
Engine not loaded.
Invalid test.
17.
06/02/86 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-l.
Engine loaded for 73 minutes.
Valid successful test.
(12) 18.
06/15/86 1B DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
Engine loaded for 70 minutes. Valid successful test.
(13) 19.
06/24/86 IB DG Monthly Operability Surveillance, IBOS 6.1.1.2.a-2.
Engine loaded for 66 minutes.
Valid successful test.
(14) 20.
06/24/86 LA DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-l.
Engine loaded for 70 minutes. Valid successful test.
(15) 21.
07/14/86 1B DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
Engine loaded for 71 minutes.
Valid successful test.
(16) 22.
07/20/86 IB DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
Engine load 6d for 69 minutes.
Valid successful test.
(17) 23.
07/27/86 1B DG Monthly Opc ability and Semi-Annual Operability Surveillances, IBOS 8.1.1.2.a-2,4.
Engine loaded for 68 minutes. Valid successful test.
(18) 24.
07/25/86 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-l.
Engine loaded for 71 minutes.
Valid successful test.
(19) 25.
08/05/86 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine loaded for 69 minutes.
Valid successful test.
(20) 26.
08/05/86 1B DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
Engine loaded for 61 minutes.
Valid successful test.
(21) 1 27.
08/07/86 1A DG Maintenance run.
Invalid test.
28.
08/07/86 1A DG Maintenance run.
Invalid test.
29.
08/21/36 1A DG Quarterly Dzergency Start Surveillance, IBOS 3.2.1-806.
Engine not loaded.
Invalid test. (1892M/0117M)
i DATE ACTIVITY 30.
08/21/86 1B DG Quarterly Dmergency Start Surveillance, IBOS 3.2.1-816.
Engine not loaded.
Invalid test.
31.
08/21/86 IB DG Monthly Operability Surveillance,.BOS 8.1.1.2.a-2.
Engine loaded for 69 minutes.
Invalid test.
32.
09/08/86 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine loaded for 70 minutes. Valid successful test.
(22) 33.
09/23/86 1B DG Monthly Operability Surveillance, 1EOS 8.1.1.2.a-2.
Engine loaded for 70 minutes. Valid successful test.
(23) 34.
09/23/86 1B DG run to check start time. Engine loaded for 31 minutes.
Invalid test.
35.
10/11/86 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine loaded for 88 minutes. Valid successful test.
(24) 36.
10/12/86 1A DG Maintenanco run.
Invalid test.
37.
10/18/86 1B DG Monthly Operability Surveillance, 1BOS 8.1.1.2.a-2 and SX load test.
Engine loaded for 24 minutes.
Engine tripped due to a spurious alarm that is bypassed in the emergency mode.
Invalid test.
38.
10/18/86 1B DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
Engine never reached rated speed due to a failed motorized potentiometer that is bypassed in the emergency mode.
Invalid test.
39.
.10/18/86 1B DG Maintenance run.
Invalid test.
40.
10/19/86 1B DG Maintenance run.
Invalid test.
41.
10/19/86 1B DG Maintenance run.
Invalid test.
42.
10/19/86 1B DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
Engine loaded for 69 minutes. Valid successful test.
(25) 43.
10/21/86 1A DG Semi-Annual Operability Surveillance, IBOS 8.1.1.2.a-3.
Engine loaded for 66 minutes.
Valid successful test.
(26) 44.
10/27/86 1B DG run per SPP-86-149, SX Cooling tower test.
Engine loaded for 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> and 22 minutes. Valid success"ul test.
(27) 45.
11/07/86 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine loaded for 62 minutes. Valid successful test.
(28) (1892M/0217M)
DATE ACTIVITY 46.
11/22/86 1A DG 18 Month Crosstie Capability Surveillance, IBOS 8.1.1.2.j-1.
Engine loaded for 44 minutes.
Invalid tesst.
47.
11/23/86 1A DG 18 Month Crosstie Capability Surveillance,1BOS 8.1.1.2.j-1.
Engine loaded for 70 minutes. Valid successful test.
(29) 48.
11/24/86 1B DG Quarterly Emergency Start Surveillance, IBOS 3.2.1-816.
Engine loaded for 61 minutes following the surveillance.
Valid successful test.
(30) 49.
11/27/86 1B DG Monthly Operability Surveillance,1BOS 8.1.1.2.a-2.
Engine loaded for 70 minutes. Valid successful test.
(31) 50.
11/27/86 1A DG Quarterly Emergency Start Surveillance, IBOS 3.2.1-806.
Engine not loaded.
Invalid test.
51.
12/11/86 1A DG Monthly Operability Surveillance,1BOS 8.1.1.2.a-1.
Engine loaded for 71 minutes.
Valid successful test.
(32) 52, 12/15/86 IB DG Quarterly Emergency Start Surveillance, IBOS 3.2.1-816.
Run to check cooldown cycle.
Engine not loaded.
Invalid test.
53.
12/15/86 1B DG Quarterly Emergency Start Surveillance,1BOS 3.2.1-816.
Run to check cooldown cycle.
Engine not loaded.
Invalid test.
54.
12/30/86 1B DG Monthly Operability Surveillance,1BOS 8.1.1.2.a-2.
Engine loaded for 70 minutes.
Valid successful test.
(33) 55.
12/30/86 1A DG Monthly Operability Surveillance,1BOS 8.1.1.2.a-l.
Engine loaded for 70 minutes. Valid successful test.
(34) 56.
01/08/87 1B DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
Engine loaded for 83 minutes.
Valid successful test.
(35) 57.
01/09/87 1A DG Maintenance run following #3 Master Rod Replacement.
Invalid test.
58.
01/09/87 1A DG Honthly Operability Surveillanco, 1BOS 8.1.1.2.a 1.
Engine loaded for 70 miautes. Valid successful test.
(36) 59.
01/09/87 1A DG Monthly Operabilit3 Surveillance, IBOS 8.1.1.2.a-l.
Extended surveillance to verify corrective maintenance.
Engine loaded for 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and 10 minutes. Valad successful test.
(37) 60.
01/13/87 1B DG Honthly Operability Surveillance, IBOS 8.1.1.2.a-2.
Engine loaded for 71 minutes.
Valid successful test.
(38) (1892M/0217M)
DATE ACTIVITY 61.
01/20/87 IB DG Quarterly Deergency Start Surveillance, IBOS 3.2.1-816, to check cooldown cycle.
Engine not loaded.
Invalid test.
62.
01/20/87 IB DG Quarterly Emergency Start Surveillance, IBOS 3.2.1-816, to check cooldown cycle.
Engine not loaded.
Invalid test.
63.
01/23/87 IB DG Monthly and ?ami-Annual Operability Surveillances, i
IBOS 8.1.1.2.a-2,4.
Engine loaded for 64 minutes. Valid successful test.
(39) 64.
01/26/87 IB DG Quarterly Emergency Start Surveillance, IBOS 3.2.1-816, to check cooldown cycle.
Engine not loaded.
Invalid test.
65.
02/10/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-l.
Engine took 15 seconds to reach rated speed. Valid test and failure.
(II) 66.
02/10/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-l.
Start time checked.
Engino not loaded.
Invalid test.
67.
02/25/87 1A DG start due to a spurious Safety Injection signal.
Engine not loaded.
Invalid test.
I 68.
03/01/87 IB DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
j Engine loaded for 70 minutes.
Valid successful test.
(40) 1 69.
03/02/87 1B DG run per SPP 87-19.
Engine loaded for 75 minutes. Valid successful test.
(41) 70.
03/02/87 1A DG run per SPP 87-19.
Engine loaded for 61 minutes. Valid successful test.
(42) 71.
03/02/87 1B DG Quarterly Emergency Start Surveillance, IBOS 3.2.1-816.
Engine not loaded.
Invalid test.
72.
03/02/87 IB DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
Engine loaded for 122 minutes.
Valid successful test.
(43) 73.
03/03/87 1B DG Quarterly Emergency Start Surveillance, IBOS 3.2.1-816.
Engine not loaded.
Invalid test.
l 74.
03/03/87 3B DG Modificaticn test M5-1-86-159.
Engine not loaded.
Invalid test.
i 75.
03/04/87 1B DG 18 Month Operability Surveillance, IBVS 8.1.1.2.e-2.
4 Run terminated due to a minor Jacketwater leak.
Invalid test.
2 l
1,
(1892M/0217M)
I i
J
?
DATE ACTIVITY 76.
03/04/87 1B DG 18 Month Operability Surveillance, IBVS 8.1.1.2.e-2.
Engine loaded for 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and 50 minutes.
Valid successful test.
(44) 77.
03/16/87 IB DG Maintenance run.
Invalid test.
78.
03/17/87 IB DG 18 Month Operability Surveillance, IBVS 8.1.1.2.e-2.
Engine loaded for 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and 42 minutes. Valid successful test.
(45) 79.
03/18/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine failed to rroch rated speed in 10 seconds. Valid test and failure.
(III) 80.
03/19/87 IB DG 18 Month Operability Surveillance, IBVS 8.1.1.2.f-8.
Run terminated due to Strip Chart Recorder problems.
Invalid test.
81.
03/19/87 IB DG 18 Month Operability Surveillance, IBVS 8.1.1.2.f-8.
Engine not loaded.
Invalid test.
82.
03/19/87 1B DG 18 Month Operability Surveillance, IBVS 8.1.1.2.f-10.
Run terminated due to spurious alarms.
Invalid test.
83.
03/20/87 1B DG 18 Month Operability Surveillance, IBVS 8.1.1.2.f J.
Engine not loaded.
Invalid test.
84.
03/21/87 1B DG 18 Month Operability Surveillance, 1BVS 8.1.1.2.f-12.
Engine loaded for 68 minutes.
Valid successful test.
(46) 85.
03/23/87 IB DG 18 Honth Operability Surveillance, 1BVS 8.1.1.2.f-14.
Run terminated due to a minor fuel oil leak on the 8R l
cylinder.
Invalid test.
86.
03/23/87 1B DG 18 Month Operability Surveillance, IBVS 8.1.1.2.f-14.
4 Engine load 6d f or 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and 38 minutes. Valid successful l
test.
(49) 87.
03/24/87 1B DG 18 Month Operability Surveillance, IBVS P.1.1.2.f-14.
Emergency Shutdown Loads sequenced on and operated for 13 minutes.
Invalid test.
88.
03/25/81 IB DG 18 Month Operability Surveillance, IBVS 8.1.1.2.f-16.
Safe Shutdows. Loads sequenced on and operated for 29 minutes.
Invalid test.
89.
03/26/87 IB DG Modification test M6-1-86-292.
Engine not loaded.
Invalid test. (1892M/0217M)
DATE ACTIVITY 90.
03/27/87 1B DG 18 Month Operability Surveillance, 1BVS 8.1.1.2.f-20.
Surveillance terminated due to a problem with the output breaker. Breaker was not fully racked to test.
Invalid test.
91.
03/27/87 IB DG 18 Month Operability Survoi11ance,1BVS 8.1.1.2.f-20.
Survsillance terminated due to SX pump breaker failure to close.
Invalid test.
92.
03/27/87 IB DG 18 Month Operability Surveillance, IBVS 8.1.1.2.f-20.
Engine not loaded. Surveillance successfully completed.
Invalid test.
93.
03/27/87 1B DG 14onthly and Semi-Annual Operability Surveillances, IBOS 8.1.1.2.a-2,4.
Engine loaded for 67 minuts4. Valid successful test.
(48) 94.
04/01/87 1A DG Quarterly Emergency Start Surveillances, IBOS 3.2.1-806.
Engine not loaded.
Invalid test.
95.
04/02/87 LA DG Maintenance run.
Invalid test.
96.
04/02/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine loaded for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> and 9 minutes. Valid successful test.
(49) 97.
04/02/87 LA DG Quarterly Emergency Start Surveillance, IBOS 3.2.1-806.
Engine net loaded.
Invalid test.
98.
04/03/87 1A DG Modification test M6-1-86-159.
Engine not loaded.
Invalid test.
99.
04/04/87 1A DG 18 Month Operability Surveillance, 1BVS 8.1.1.2.e-1.
Engine loaded for 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> and 12 minutes. Valid successful i
test.
(50) l 100.
04/16/87 1A DG 18 Month Operability Surveillance, 1BVS 8.1.1.2.e-1.
Engine loaded for 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and 55 minutes. Valid successful I
test.
(51) 101.
04/li/87 1A DG 18 Month Operability Surveillance, 1BVS 8.1.1.2.f-11.
Engine loaded for 69 minutes. Valid successful test.
(52)
)
102.
04/16/87 1A DG 18 Month Operability Surveillence, IBVS 8.1.1.2,f-9.
i
]
Engine not loaded.
Invalid test.
103.
04/17/87 1A DG 18 Month Operability Surveillance,1BVS 8.1.1.2.f-7.
Engine failed to reach rated speed in 10 seconds. Valid test and failure.
(IV) 1 i (1892M/0217M)
.,c w
'^
DATE ACTIVITY 104.
04/17/87 1A DG Maintet.ance run.
Invalid test.
105.
04/17/87 1A DG Maintenance run.
Invalid test.
106. 04/.17/87 1A DG Maintenance run.
Invalid test.
t 107. 04/17/87 1A DG Maintenance run.
Invalid test.
108. 04/17/87 1A DG Maintenance run.
Invalid test.
I 109.
04/17/87 1A DG 18 Month Operability Surveillance,1BVS 8.1.1.2.f-7.
Surveillance successfully completed. Engine not loaded.
Invalid test, 110.
04/17/87 1A DG 18 Month Operability Surveillance, IBVS 8.1.1.2.f-13.
Engine loaded for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and 5 minutes. Valid successful test.
(53) 111. 04/22/87 1A DG 18 Month Operability Surveillance, IBVS 8.1.1.2.f-19.
Engine not loaded.
Invalid test.
112. 04/23/87 1A DG 18 Month Operability Surveillance, 1BVS 8.1.1.2.f-13.
Engine loaded for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> and 59 minutes. Valid successful test.
(54) 113.
04/23/87 1A DG 18 Month Operability Surveillance, IBVS 8.1.1.2.f-13.
Emergency Shutdown Loads sequenced on and operated for 12 minutes.
Invalid test.
1 114.
04/23/87 1A DG 18 Month Operability Surveillance, IBVS 8.1.1.2.f-15.
Safe Shutdown Loads sequenced on and operated for 10 minutes.
Invalid test.
115. 04/24/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine loaded for 68 minutes. Valid successful test.
(55)
{
116. 04/24/87 1A DG Quarterly Dmergency Start Surveillance,1BOS 3.2.1-806.
j Engine not loaded.
Invalid test.
117. 04/26/87 1A DG 18 Month Alternate AC Power Circuit Surveillance,1BOS 8.1.1.1.b-1.
Engine loaded for 83 minutes. Valid successful tert.
(56) 118.
04/20/87 1B DG Quarterly Emergency Start Surveillance, IBOS 3.2.1-816.
Engine not loaded.
Invalid test.
3 j
I i
~
i i
l (1892M/0217M) i
DATE ACTIVITY f
r 119. 04/26/87 1B DG 18 Month Alternate AC Power Circuit Surveillance, IBOS 8.1.1.1.b-1.
Engine loaded for'62 minutes. Valid successful test.
(57) 120.
04/29/87 1B DG Monthly Operability Surveillance, 1 DOS 8.1.1.2.a-2.
Engine loaded for 72 minutes.
Valid successful test.
(58) 121.
04/30/87 1A DG started per the Manual Safety Injection Surveillance, IBOS 3.2.1-1.
Engine not loaded.
Invalid test.
122. 04/30/87 1A DG started per the Manual Safety Injection Surveillance, I
IBOS 3.2.1-1.
Engine not loaded.
Invalid test.
123.
05/01/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine loaded for 71 minutes. Valid successful test.
(59) 124. 05/01/87 1B DG started per the Manual Saisty Injection Surveillance, IBOS 3.2.1-1.
Engine not loadet Invalid test.
125.
05/09/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-l.
Engine loaded for 69 minutes.
Valid successful test.
(60) 126.
05/12/87 1B DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
f i
Engine loaded for 70 minutes. Valid successful test.
(61) l 127.
05/16/87 1A DG Monthly Operability Surveillance, 1BOS 8.1.1.2.a-1.
Engine loaded for 69 minutes. Valid successful test.
(62) 128.
05/23/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine loaded for 71 minutes.
Valid successful test.
(63) 129.
05/31/87 1A DG Monthly Operability Surveillancs, IBOS 8.1.1.2.a-1.
Engine loaded for 67 minutes.
Valid successful test.
(64) 130.
06/05/87 1A DG Monthly Operability Survei21ance, IBOS 8.1.1.2.a-l.
Engine loaded for 72 minutes. Valid successful test.
(65) l 131.
06/11/87 IB DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
l Engine loaded for 71 minutes.
Valid successful test.
(66)
J j
132.
06/12/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine loaded for 69 minutes. Valid successful test.
(67) 133.
06/15/87 1B DG Maintenance run.
Invalid test.
134.
06/19/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine loaded for 81 minutes.
Valid successful test.
(68) 1 l (1892M/0217M) i i
DATE ACTIVITY 135. 06/25/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine loaded for 70 minutes. Valid successful test.
(69) 136. 07/03/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine loaded for 70 minutes. Valid successful test.
(70) 137. 07/10/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine loaded for 75 minutes. Valid successful test.
(71)
I 138. 07/14/87 1B DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
Engine loaded for 69 minutes. Valid successful test.
(72) 139. 07/17/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine loaded for 69 minutes. Valid successful test.
(73) 140. 07/24/87 1A DG Monthly Operability Surveillance, 1BOS 8.1.1.2.a-1.
Engine loaded for 78 minutes. Valid successful test.
(74) 141. 08/12/87 1A DG start due to Safety Injection Signal.
Engine run unloaded for 17 minutes.
Invalid test.
I 142. 08/12/87 33 DG start due to Safety Injection Signal.
Engine run unloaded for 17 minutes.
Invalid test.
143. 08/14/87 IB DG Monthly Operability and Quarterly Dmitgency Start Surveillance.
Engine manually tripped due to Governor hunting. Valid test and failure.
(V) 144. 08/14/87 1B DG Maintenance run.
Invalid test.
145. 08/14/87 IB DG Maintenance run.
Invalid test.
145. 08/14/87 1B DG Maintenance run.
Invalid test.
l 147. 08/14/87 1B DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
Engine loaded for 70 minutes. Valid successful test.
(75) 148. 08/17/87 1A DG Quarterly Emergency Start test, IBOS 3.2.1-806.
Engine not loaded.
Invalid test.
149. 08/24/87 1A DG Monthly Operability Surveillance, 1BOS 8.1.1.2.a-1.
l Engine loaded for 68 minutes.
Valid successful test.
(76) 150. 08/24/87 1A DG Orosstie Capability Check. Engine not loaded.
Invalid test.
151. 09/14/87 1B DG Mcnthly Operability Surveillance, IBOS 8.1.1.2.a-2.
Engine loaded for 67 minutes. Valid successful test.
(77) (1892M/0217M)
i DATE ACTIVITY 152.
09/24/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine shutdown 48 minutes into the loaded run due to fuel oil leak. Valid test and failure.
(VI) l 153.
09/25/87 1A DG Maintenance run. Invalid test.
l 154.
09/25/87 1A DG Monthly Operability Surveillance, 1BOS 8.1.1.2.a-1.
I Engine loaded for 68 minutes. Valid successful tent.
(78) 155.
10/01/87 1A DG Monthly Operability Surveillance, l'BOS 8.1.1.2.a-1.
Engine loaded for 72 minutes. Valid successful test.
(79) 156.
10/08/87 1A DG Monthly Operability Surveillance, 1BOS 8.1.1.2.a-1.
Engine loaded for 69 minutes. Valid successful, test.
(80) 157.
10/15/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine loaded for 73 minutes. Valid.accessful test.
(81)
~ 158.
10/15/87 15 DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
Engine loaded for 74 minutes. Valid successful test.
(82) 159.
10/16/87 1A DG Maintenance run.
Invalid test.
160.
10/22/87 1A DG Monthly Operability and Semi-Annual Operability Surveillance, 1BOS 8.1.1.2.a-l.
Engine loaded for 66 minutes. Valid successful test.
(83) 161.
10/26/87 IB DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
Engine loaded for 72 minutes. Valid successful test.
(84) 4 3
162.
10/28/87 1A DG Maintenance run. Invalid test.
163.
10/28/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-l.
Engine loaded for 72 minutes. Valid successful test.
(85) 164.
10/28/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-l.
]
Engire loaded for 72 r.inutes. Valid successful test.
(86) l 165.
10/29/87 1B DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
l Engine loaded for 81 minutes. Valid successful test.
(81)
I 166.
11/03/87 IB DG Quarterly Emergency Start Surveillance, IBOS 3.2.1-816.
Engine not loaded.
Invalid test.
]
167.
11/13/87 1A DG Quarterly Emergency Start Surveillance, IBOS 3.2.1-806.
Engine not loaded. Invalid test.
168.
11/24/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-l.
Engine loaded for 68 minutes. Valid successful test.
(88)
I l
j [
(1892M/0217M) i i
i
.s DATE ACTIVITY 169.
11/29/87 1B DG Monthly Operability Surveillance,1BOS 8.1.1.2.a-2.
Engine not loaded due to slow start. Slow start caused by a misadjusted regulator that is bypassed in the emergency mode.
Invalid test.
1 170.
11/30/87 IB DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
Engine shut down due to load swings. Load swings caused by l
faulty MOP which is bypassed in the amergency mode.
Invalid test.
171.
11/30/87 IB DG Maintenance run.
Invalid test.
172.
11/30/87 IB DG Maintenance run.
Invalid test.
173.
11/30/87 IB DG Maintenance run.
Invalid test.
174.
11/30/87 IB DG Mair.tenance run.
Invalid test.
175.
11/30/87 1B DG Maintenance run.
Invalid test.
176.
11/30/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine loaded for 69 minutes. Valid successful test.
(89) 177.
12/01/87 1B DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
Engine loaded for 70 minutes. Valid successful test.
(90) 178.
12/28/87 1A DG Monthly Operability Surveillance, 1BOS 8.1.1.2.a-1.
Engine loaded for 70 minutes. Valid successful test.
(91) 179.
12/30/87 1B DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-2.
Engine loaded for 69 minutes.
Valid successful test.
(92) 180.
01/20/87 1A DG Monthly Operability Surveillance, IBOS 8.1.1.2.a-1.
Engine loaded for 70 minutes. Valid successful test.
(93) 181.
01/21/87 1A DG Quarterly Emergency Start Surveillance, IBOS 3.2.1-806.
Engine not loaded.
Invalid test.
182.
01/27/87 1A DG Maintenance run.
Invalid Test.
183.
01/28/87 1B DG Maintenance run.
Invalid Test.
184.
01.28/87 LB DG Monthly Operability Surveillance, 1BOS 8.1.1.2.a-2.
Engine tripped due to unstable governor control. Unstable load control caused by faulty load sensor which is bypassed in the emergency mode: however, during troubleshooting high resistance was detected across the isochronous contacts of the 4EX3 relay, therefore, this test has been declared a valid failure.
(VII) (1892M/0217M)