ML20129G462

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Monthly Operating Repts for Apr 1985
ML20129G462
Person / Time
Site: Sequoyah  
Issue date: 04/30/1985
From: Dupree D, Eddings M, Wallace P
TENNESSEE VALLEY AUTHORITY
To:
NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
NUDOCS 8507180064
Download: ML20129G462 (35)
v • d • e


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TENNESSEE VALLEY AUTHORITY DIVISION OF NUCLEAR POWER SEQUOYAH NUCLEAR PLANT MONTHLY OPERATING REPORT TO THE NUCLEAR REGULATORY COMMISSION April 1, 1985 - April 30, 1985 UNIT 1 DOCKET NUMBER 50-327 LICENSE FUMBER DPR-77 UNIT 2 DOCKET NUMBER 50-328 LICENSE NUMBER DPR-79 Submitted by:

P. R. Wallace, Plant Manager

,y+S4 8507180064 850430 PDR ADOCK 05000327 R

PDR

9 TABLE OF CONTENTS I.

Operational Summary Page Performance Summary 1

Significant Operational Events 1-2 Fuel Performance and Spent Fuel Storage Capabilities 2

PORCs and Safety Valves Summary 2

Licensee Events, Special Reports and 2-3 Diesel Generator Failure Reports 3

Offsite Dose Calculation Manual Changes 3

II.

Operating Statistics A.

NRC Reports Operating Data Reports 4-5 Unit Shutdowns and Power Reductons 6-7 Average Daily Unit Power Level 8-9 B.

TVA Reports Nuclear Plant Operating Statistics 10 Unit Outage and Availability 11-12 Reactor Histograms 13-14 III. Maintenance Summary Electrical Maintenance 15-18 Instrument Maintenance 19-23 Mechanical Maintenance 24-25 Modifications 26-32

Operations Summary April 1985 The following summary describes the significant operational activities for the month of March. In support of this summary, a chronological log of significant events is included in this report.

Unit 1 Unit I was critical for 307.1 hours1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, produced 285,930 MWH (gross), resulting in an average hourly gross load of 937,168 kW during the month. There are 76.4 full power days estimated remaining until the end of cycle 3 fuel.

The capacity factor for the month was 33.6 percent. The cycle 3 refueling outage is scheduled to begin September 6, 1985.

During the month, the unit experienced no reactor scrams, one manual shutdown, and one power reduction.

Unit 2 Unit 2 was critical for 719.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br />, produced 844,510 MWH (gross), resulting in an average hourly gross load of 1,174,562 kW during the month.

There are 251.5 full power days estimated remaining until the end of cycle 3 fuel.

The capacity factor for the month was 99.3 percent. With a capacity factor of 85 percent, the target EOC exposure would be reached February 20, 1986.

During the month, the unit experienced no reactor scrams, manual shutdowns or power reductions.

Significant Operational Events Unit 1 Date Time Event 04/01/85 0001 The reactor was in mode 1 at 100% power producing 1170 MWE.

04/09/85 1800 Began reducing power due to a hydrogen leak in the electrical generator.

04/10/85 0330 Stopped the power reduction at 35% power.

04/11/85 2031 The unit exceeded TVAs longest continous run record.

The unit had been on-line for 195 days, 9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br />, 34 minutes.

04/13/85 1446 Began reducing power to remove the unit from service for ice weighing, steam generator tube leak and electrical generator hydrogen leak repairs.

1707 The unit was removed from service ending a record continuous run of 197 days, 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, 9 minutes.

1905 The reactor entered mode 3.

  • o, Significant Operationni Ev nts (Cont.)

Unit 1 Date Time Event 04/14/85 2205 The reactor entered mode 4.

04/15/85 1639 The reactor entered mode S.

04/30/85 2359 The reactor was in mode 5.

Ice weighing was complete and maintenance continued on the steam generator tube leak and the electrical generators hydrogen leak.

Unit 2 04/01/85 0001 The reactor was in mode 1 at 100% power producing 1180 MWE.

l 04/30/85 2359 The reactor was in mode 1 at 100% power producing 1170 MWE.

The unit has been in continous operation since February 17, 1985 (72 days).

Spent Fuel Pit Storage Capabilities Sequoyah has the capabilities to store 1,386 spent fuel assemblies.

Two-hundred-seventy-six assemblies are presently stored in the SfP with the capacity to store an additional 1,110 assemblies.

The fuel receipt schedule for unit 1 cycle 4 was transmitted on April 15, 1985. The first shipment is scheduled to arrive onsite May 14, 1985.

PORVs and Safety Valves Summary No PORVs nor safety valves were challenged during the month.

Licensee Events and Special Reports The following licensee event reports (LER) were sent during April 1985 to the Nuclear Regulatory Commission.

LER DESCRIPTION OF EVENT 1-85012 With the unit in mode 1 at 100% power on March 18, 1985 hourly fire watch was not performed within one hour due to door A123 being inoperable.

The door was found inoperable between 2100 CST and 2200 CST. The door was declared operable at 0930 CST and March 13, 1985.

1-85013 On seven seperate occasions, an hourly fire watch was not performed within one hour.

Both units were in mode 1 at 100% Power.

2

  • e, Licanama Events and Special Reports (Continued)

Time (CST)

Date Location /Cause 1300 March 21, 1985 Unit 1 ventilation and. purge room and the unit I auxiliary building supply air fan room.

Door A123 was inoperable.

1800 March 24, 1985 Unit 1 125V Battery Room II.

Door A181 was inoperable.

0816 March 27, 1985 RHR pump room IB.

Door A5 was inoperable.

0610 March 28, 1985 Unit 1 additional equipment building.

1330 Door A183 was inoperable.

(

0507 March 30, 1985 Unit I auxiliary building supply air fan room.

Door A122 was inoperable.

1-85014 On April 4, 1985 with both units operating in mode 1 at 100%

power, an auxiliary building isolation (ABI) was initiated when an instrument mechanic failed to follow the written sequence of SI-82 (Functional Test of Radiation Monitors).

Special Reports There were two special reports transmitted during the month, f

85-02R1 This special report provided additional details concerning l

inoperability of two fire barrier in excess of seven days.

l l

85-03 This report provided details of four six-inch pipe penetration fire barriers that were breached greater than seven days. The l

penetrations are in the auxiliary building, elevation 669:

L A.

Valve gallery to Boric Acid Room A.

B.

Boric Acid Room A to Boric Acid Room B.

C.

Boric acid room B to Hot Tool Room D.

Hot Tool Room to the Holdup Tank Room.

i An hourly fire watch was maintained until the penetrations were closed.

Diesel Generator Failure Report There were no diesel generator failure reports transmitted during the month.

Offsite Dose Calculation Manual Changes No changes were made to the Sequoyah Offsite Dose Calculation Manual during the month.

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3 l

OPERATING DATA REPORT DOCKET NO. 50-327 DATE MAY 2 1985 COMPLETED BY M.

G.

EDDINGS TELEPHONE (615) 870-6421 OPERATING STATUS 1.

UNIT NAME: SEQUOYAH NUCLEAR PLANT, UNIT 1

NOTES:

2. REPORT PERIOD APRIL 1985
3. LICENSED THERMAL POWER (MWT):

3411.0

4. NAMEPLATE RATING (GROSS MWE):

1220.6

5. DESIGN ELECTRICAL RATING (NET MWE):

1148.0 6.

MAXIMUM DEPENDABLE CAPACITY (GROSS MWE):

1183.0

7. MAXIMUM DEPENDABLE CAPACITY (NET MWE):

1148.0 C.

IF CHANGES OCCUR IN CAPACITY RATINGS (ITEMS NUMBERS 3 THROUGH 7)SINCE LAST REPORT, GIVE REASONSt.________

9 POWER LEVEL TO WHICH RESTRICTED.IF ANY(NET MWE)t________

10. REASONS FOR RESTRICTIONS.IF ANY _______________________

THIS MONTH YR.-TO-DATE CUMULATIVE

11. HOURS IN REPORTING PERIOD 719.00 2879.00 33600.00
12. NUMBER OF HOURS REACTOR WAS CRITICAL 307.10 2467.10 23114.76
13. REACTOR RESERVE SHUTDOWN HOURS 0.00 0.00 0.00
14. HOURS GENERATOR ON-LINE 305.10 2465.10 22574.05
15. UNIT RESERVE SHUTDOWN HOURS 0.00 0.00 0.00
16. GROSS THERMAL ENERGY GENERATED (MWH) 812884.96 8139835.76 72817521.71
17. GROSS ELECTRICAL ENERGY GEN. (MWH) 285930.00 2818410.00 24554826.00
10. NET ELECTRICAL ENERGY GENERATED (MWH) 270326.00 2711314.00 23592944.00
19. UNIT SERVICE FACTOR 42.43 85.62 67.18
20. UNIT AVAILABILITY FACTOR 42.43 85.62 67.18

'21. UNIT CAPACITY FACTOR (USING MDC NET) 32.75 82.03 61.16

'22. UNIT CAPACITY FACTOR (USING DER NET) 32.75 82.03 61.16

23. UNIT FORCED OUTAGE RATE O.00 0.00 16.67
24. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE. AND DURATION OF EACH):

Edu c tind n11fj a.Lt9m..Sant schr.r_ fi 1935_ _r_.21_431h _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

25. IF SHUTDOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUPt Jbms_L J2&t______________________________________________________

NOTE THAT THE THE YR.-TO-DATE AND CUMULATIVE VALUES HAVE BEEN UPDATED.

i 4

OPERATING DATA REPORT DOCKET NO. 50-328 DATE MAY 5 1985 COMPLETED BY D.C.DUPREE TELEPHONE (615)870-6248 OPERATING STATUS

1. UNIT NAME: SEQUOYAH NUCLEAR PLANT, UNIT 2

NOTES 8

2. REPORT PERIOD APRIN 1985
3. LICENSED THERMAL POWER (MWT):

3411.0

4. NAMEPLATE RATING (GROSS MWE):

1220.6 5.

DESIGN ELECTRICAL RATING (NET MWE):

1148.0

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE):

1183.0

7. MAXIMUM DEPENDABLE CAPACITY (NET MWE):

1140.0 8.

IF CHANGES OCCUR IN CAPACITY RATINGS (ITEMS NUMBERS 3 THROUGH 7)SINCE LAST REPORT, GIVE REASONSt-___________

9.

POWER LEVEL TO WHICH RESTRICTED.IF ANY(NET MWE)t---_-_--

10. REASONS FOR RESTRICTIONS,IF ANYt-_-_---__-----_---=

THIS MONTH YR.-TO-DATE CUMULATIVE

11. HOURS IN REPORTING PERIOD 719.00 2879.00 25560.00
12. NUMBER OF HOURS REACTOR WAS CRITICAL 719.00 2836.70 19531.02
13. REACTOR RESERVE SHUTDOWN HOURS 0.00 0.00 0.00
10. HOURS GENERATOR ON-LINE 719.00 2804.92 19075.10
15. UNIT RESERVE SHUTDOWN HOURS 0.00 0.00 0.00
16. GROSS THERMAL ENERGY GENERATED (MWH) 2449796.57 9053461.04 61052471.91
17. GROSS ELECTRICAL ENERGY GEN. (MWH) 844510.00 3118930.00 20810610.00
10. NET ELECTRICAL ENERGY GENERATED (MWH) 815027.00 3004938.00 20025946.60
19. UNIT SERVICE FACTOR 100.00 97.43 74.63
20. UNIT AVAILABILITY FACTOR 100.00 97.43 74.63
21. UNIT CAPACITY FACTOR (USING MDC NET) 98.74 90.92 68.25
22. UNIT CAPACITY FACTOR (USING DER NET) 98.74 90.92 68.25
23. UNIT FORCED OUTAGE RATE O.00 2.36 7.72
24. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE, AND DURATION OF EACH):
25. IF SHUTDOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUPs NOTE THAT THE THE YR.-TO-DATE AND CUMULATIVE VALUE.S HAVE BEEN UPDATED.

5

,/

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.

50-327 UNIT NAME Sequoyah one DATE May 2, 1985 COMPLETED BY M. G. Eddings REPORT MONTH April 1985 TELEPHONE (615) 870-6421 m

M 20 Cause & Corrective No.

Date 5 %'

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n y jj M Event o (j g jj Action to

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Report #

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1 Ice Weighing Outage 1

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4 F: Forced Reason:

Method:

Exhibit G-Instructions S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-!!atatenance or Test 2-Manual Scram.

Entry Sheets for Licensee C-Refueling 3-Automatic Scram.

Event Report (LER) File (NUREG-D-Regulatory Restriction 4-Cont. of Existing 0161)

E-Operator Training & License Examination Outage F-Administrative 5-Reduction G-Operational Error (Explain) 9-Other 5

(9/77)

H-Other (Explain)

Exhibit I-Same Source

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SQNP ATTACHMENT I Al-18 AVERAGE DA1LY i: NIT POWER I.EVEL Apendix A Page 3 of 8 Rev. 24 FILE PACKAGE No. 55 DOCKET NO.

50-327 REPORT REQUIREMENTS UNIT one DATE 3-1-33 COMPLETED BY M. G. Eddings TELEPHONE (615) 870-6421 MONTil April Day AVERAGE DAll.Y POWER I.EVEl.

DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 1137 17 NA 2

1136 18 NA 3

1133 19 NA 4

. _1131_ _ _

20 NA 5

1129 _

21 NA 6

1128 22 NA 7

1128 23 NA 8

1127 24 NA 9

1031 25 NA 10 381 26 NA 11 352 27 NA 12 223 28 NA 13 NA 29 NA 14 NA 30 NA 15 NA 31 NA 16 NA INSTRUCTIONS On this format, list the average daily unit power level in t!We-Net for each day in the reporting month.

Compute to the nearest whole megawatt.

8

SQNP ATTACllMENT I AI-18 AVERAGE DAILY UNIT POWER LEVEL Apendix A Page 3 of 8-Rev. 24-FILE PACKAGE No. 55 DOCKET No. 50-328 REPORT REQUIREMENTS UNIT 2 DATE May 6, 1985 COMPLETED BY Ae niinraa TELEPHONE (A1 d a70-6248 MONTH April 1985 Day AVERAGE DAILY. POWER I.EVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 1126 17 1139 2

1128 18 1142 3

1128 19 1138 4

1131 20 1137 5

l129 21 1140 6

1133 22 1142 7

1131 23 1143 8

1133 24 1143 9

1129 25 1142 1140 10 1131 26 11 1144 27 1141 12 1141 28 1142

.I3 1140 29 1140 la 1139 30 1140 15

__1138 31 NA 16 1138 INSTRUCTIONS On this format, list the average daily unit power level in MWe-Net for each day in the reporting month.

Compute to the nearest whole megawatt.

9

tvh inta coNo-e.so NUCLEAR PLANT OPERATING STATISTICS SEQUOYAH NUCLEAR Plant Period Hours 7I9 Month APRIL 19 85 Item UNIT UNIT No.

Unit No.

ONE TWO PLANT 1

Average Hourly Gross Load, kW 937,168 1,174,562 1,572,239 2

Maximum Hour Net Generation MWh 1,144 1,156 2,276 3

Core Thermal Energy Gen. GWD (t)2 33.8702 102.0749 135.9451 4

Steam Gen. Thermal Energy Gen., GWD (t)2 33.9888 102.4878 135.4766 5

5 Gross Electrical Gen., MWh 285,930 844,510 1,130,440 si 6

Station Use, MWh 15,604 29,483 45,087 h

7 Net Electrical Gen., MWh 270,326 815,027 1,085,353 5

8 Station Use, Percent 5.46 3.49 3.99 9

Accum. Core Avg. Exposure, MWD / Ton!

11,264 4,309 15,573 10 CTEG This Month,10 BTU 2,774,376 8,361,156 li]35,3 6

~

6 BTU 2,784,091 8,394,979 11,179,07' l 11 SGTEG This Month,10 12 13 Hours Reactor Was Critical 307.1 719.0 1026.I 14 Unit Use, Hours-Min.

_305:07 719:00 1024:07 15 Capacity Factor, Percent 11.6 99.1 66.5 y

16 Turbine Avait. Factor, Percent A9_&

100_0 71,2 17 Generator Avail. Factor. Percent Ao_A Inn.p 71.2

,a 0

18 Turbooen. Avail. Factor. Percent 42.4 100.0 71.2 19 Reactor Avail Factor. Percent 42.7 100.0 71.4 0

20 Unit Avail. Factor. Percent 42.4 100.0 71.2 21 Turbine Startuos 0

0.0 0

22 Reactor Cold Startuns 0

0.0 0

23 Unit Service Hottrs 719 g

24 Gross Heat Rate, Btu /kWh 9,700 9,900 9,850

.y 25 Net Heat Rate, Btu /kWh 10,260 10,260 10,260 E

26 U

27 g

28 Throttle Pressure, psig 880.0 874.4 876.1 29 Throttle Temperature, *F 529.3 528.6 528.8 j

30 Exhaust Pressure, inHg Abs.

2.3 2.2 2.2 g

31 Intake Water Temp., *F 57.3 60.1 59.3 H

32 33 Main Feedwater, M lb/hr 11.9 15.I 14.1 y

34 35 36 37 Full Power Capacity, EFPD 370.00 363.65 733.65 38 Accum. Cycle Full Power Days. EFPD 293.6167 112.1962 405.8129 N

39 Oil Fired for Generation, Gallons 1,782 5 _40 Oil Heatina Value. Dtu/ Gal.

138,000 41 Diesal Generation. MWh 27 42 Max, Hour Net Gen.

Max. Day Net Gen.

Load MWh Time Date MWh Date Factor, %

a 43 2,276 0900 04/02/85 54,336 04/02/85 66.3 b

Remarks: IFor BFNP this value is MWD /STU and for SQNP and WBNP this value is MWD /MTU.

j 2(t) indicates Thermal Energy.

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N SEQUOYAH ONE REACTOR HISTOGRAM 110 I

100 -

90 -

80 -

70 -

60 -

SO -

40 -

2 3

so _

20 -

10 -

4 567 0

s i

s i

O 4

8 12 18 20 24 28 APRIL 1985 SEQUOYAH TWO REACTOR HISTOGRAM 110 100 -

90 -

80 -

70 -

60 -

50 -

40 -

30 -

20 -

10 -

i s

i i

i O

4 8

12 16 20 24 28 APRIL 1985 13

REACTOR HISTOGRAM UNIT 1 April 1985

'1.

1800 Began power reduction due to a hydrogen leak in the electrical generator.

2.

0330 Maintained 30 percent reactor power.

3.

1446 Began power reduction to manually shut down the unit for ice weighing and electrical generator repairs.

4.

1707 The unit was removed from service.

The unit's on-line time was 197 days, 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, 9 minutes, which establishes a TVA record for units larger than 500 MWs.

5.

1905 The reactor entered mode 3.

-6.

2205 The reactor entered mode 4.

7.

1639 The reactor entered mode 5.

UNIT 2 1.

The unit maintained 100 percent reactor power for the entire month.

14

13:21:03 05-06-85 ELECTRICAL MAINTENANCE 11(NTHLY REPORT FOR APRIL PAGE 1

^

DATE....

001PONENT.....

FAILURE DESCRIPTION......

CAUSE OF FAILURE.........

CORRECTIVE ACIION........

rR le..

04-05-85 1-XS-313-1600 LICHT CN TECH SPEC FIRE BULB BLOWN REPLACE 0 BUIB A245097

('ETECTCit DOES NOI WORK 04-05-85

&RE-090-0134/

ERCW LIGUID T10 nil 0R HAS BAD T10 TOR REPLACED f10104, CONNECTED A553569 0141 LOW FLOW ALARf1 PER fitAI12, ALIGNED PUND AHO f10 TOR 04-05-85 2-XX-083-0001 P0uER ON HYDROGEN WATT F1ETER EEDS TO BE REPAIRE0 CIRCULT F100Ui E A528586 RECOMBINER 2AA WILL NOT CALIBRATED, CIRCUIT PER 111AI 12 Af D fil 6.20 GO TO 60 KW WHEN REOSTAT T100ULE NEEDS REPAIRING IS ADJUSTED TO 100%

04-05-85 2-FSV-063-0023 VALVE HEEPS BLOWING FUSES VALVE MAD WRONG COIL REPLACE 0 COIL PER ntAI 12 A528586 EACH tit 1E VALUE IS PLACED INSTALLED COIL WAS A AfD fil 6.20 NAD FROM CLOSED TO TtE OPEN 110/120 VOLT A.C. 50/60 CpERATIONS RUN SI 166.6 POSITION HERTZ 6-WATT SHOULD HAVE BEEN A 120 VOLT D.C. 9.70 WATT 04-05-85 2-Rn-090-0112 PUnp MOTOR ON CONTAlHMENT BAD MOTOR REDLACED f10TCM DN Punp"A" A517838 RADIATION T10HITOR "A" WAS PERFORMED SI 206 AND LEFT FOUND BAD ON F1R A049396 IN SERVICE 04-05-85 2-XFD-031C-091 ELECTRICALLY ACTUATED DAnPER IS FROZEN CLOSED RFPLACEO FUSEABLE LIN4 A528745 0

FIRE DAl1PER tEEDS WILL NOT OPEN FUSEABLE LINK INSTALLED 04-05-85 1-XFD-313-0905 FUSEABLE LIl4( f1ELTED OFF BAD FUSEABLE LINK REPLACE 0 FUSEABLE LIN'4 A529658 DN RC0i1 FIRE DAMPER OF 1828 480 VOLT SHUT 00uN BOARD R00!1 04-05-85 1-XFD-313-0904 R00(1 FIRE DAripER OH 480 BAD FUSEABLE LINK REPLACE 0 FUSEABLE LINX A553503 VOLT SHUT DOWN BOARD ROOM ASSEf1BLY ON DAr1PER

13:21:03 05-05-85 ELECTRICAL t%1NIENANCE n0NTHLY REPORT FOR APRIL PAGE 2 DATE....

CDnDONENT.....

FAILURE DESCRIPTION......

CAUSE OF FAILURE.........

CORRECTIVE ACIION........

FR.16.

,[

't WILL NOT OPEN 04-05-85 2-XFD-031C-091 ELEC1RICALLY ACTUATER BAD FUSEA8LE LINK REPLACE 0 FUSEA8LE LINK A528744 1

FIRE DAnPER ON UNIT 2 430 VOLT SHUT DOWN BOARD ROOn WILL NOT OPEN 04-05-85 2-XFD-031C-090 ELECTRICALLY ACTUATER BAD FUSEA8LE LINK REPLACED FUSEABLE LIN4 A528746 7

FIRE DANPER ON UNIT 2.480 SHUT DOWN BOARD ROCd1 ulLL NOT CPEN 04-22-85 0-P AIN-317 EXPAND GRID #43, 5 FT. TO NO FAILURE, PREVENTIVE PAINTED CRIOS CM PIPE.

A116654 RIGHT DOUNSTREAn AND 2 MAINTENANCE.

FT. TO LEFT UPSTREAn.

04-22-85 1-MTRB-067-049 IB ERCu STRAINER 50 TOR CONTROL CIRCUIT FUSE WAS REPLACE 0 CONTRGi CIRCUII A536574 g

08 uGULD NOT RUN WITH BURNED OUT FLFl BREAXER CLOSED 04-23-85 0-CHGB-250-GH-ADJUST EOUALIZE VOLTAGE NO FAILURE, PREVENTIVE A0 JUSTED EGUALI/E VOLTAT A538868 F

OF NORMAL CHARGER N3 TO MAINTENANCE OF NCRMAL CNARGFR #3 3

143.6 VOC DURING RECHARGE OF BATTERY AFTER PERFORMANCE OF S1105 04-24-85 1-nTR B-070-OO4 CONDONENT COOLING SYSTEn NO FAILURE, PREVENTIVE RFFILLEO OIL RCSERVOIM 10 A553721 i

6 PUnD 1A-A OUTBCARD t1AINTENANCE PRCwER LEVEL BEARING OIL RESERVOIR HAS LOW OIL LEVEL 04-26-85 1-MTR A-072-002 CONTAINnENT SPRAY PunP NO FAILURE, PREVENTIVE FILE _E0 OIL RESFRVOIR TO A553716 7

n0 TOR 1A-A IN8OARD nAINTENANCE PRODER LEVEL BEARING OIL RESERVOIR HAS Lou OIL LEVEL

13:21:03 05-06-85 ELEClRICAL nAINTENANCE MONTHLY REPORT FOR APRIL PAGE 3 f

DATE....

CDnP0hEt4T.....

FAILbRE DESCRIPTION......

CAUSE OF FAILURE.........

CC9RECTIVE AC ION........

MR. ld)..

m 04-26-85 C-nTRB-070-005 ConPONEN1 COOLING UATER NO FAILURE, PREVENTIVE FILLE 0 OIs RE5FRVOIR TO A553714 1

PUnp n0 TOR OUTBOARD MAINTENANCE PRC9ER LEVEL BEARINC OIL RESERVOIR i

INDICATES LOU OIL LEVEL 04-2!3-85 FIGN-268 -0233 PERMANENT H(ORO GErERATOR IGNITER UAS POSSIBLY NIT SIRAIGHTENEO HrORO A536628 MITIGATION SYSTEn IGNITER BY A LOAD CN JIS CRANE GENERATOR MITIGATION N233 IS BENT S(SIEn IGN1TER #233 04-26-85 1-LOCL-013-061 TEST Sn3KE DETEC10RS NO FAILURE, PREVENTIVE PERFCRnCD SI-234.3 A529851 4

XS-13-1A & B USING MAINTENANCE MAINTENANCE TESI SURVCILLANCE INSTRUCTION 234.3 04-26-85 1-BCTO-067-012 REPLACE CRACKED CONTACTOR GVERTICHTENED SCREUS ON REDLACEO CRACKED A529811 6

CONTACT BLCCK ON CONTACT BLOCK CONTACTOR CONTACT BLOCK CONTAINnENT SPRAY HEAT EXCHANGE CONTACTOR 1A w

04-26-85 1-BCID-057 -012 REPLACE CRACKED CONTACTOR OVERTIGHTENED SCREW ON REPLACED CRACKE0 A529810 5

CONTACT BLOCX ON CONTACT BLOCK CONTACTOR CONTACT BLOCK CONTAINNENT SPRAY HEAT EXCHANGE CONTACTOR 04-26-85 1-FCV-003-0087 RED lhDICATOR LICHT FOR POSSIBLY ANNUNCIATOR CLEANEO CONTACIS GN A529590

-A STEAN GENERATOR FEEDWATER CONTACTS UERE DIRTY LInITORGUE ISOLATION VALVE #3 UAS NOT C+l IN MAIN CONTROL ROOn 04-29-85 1-INV8-250-GR-ENERGI7ER LIGHT WAS NOT BAO LIGHT SOCKET REPLACE 0 8AO LICHT SOCKtT A528735 F

BURNING ON 120V AC VITAL INVERTER 1-III 04-29-85 0-BATB -082-SPA READ AND RECORO THE NO FAILURE, PREVENTIVE RECORCEO GRAVITY AND CFLL.

A520058 RE SPECIFIC GRAVITY AND CELL nAINTENANCE VOLTArl FOR EACH CELL

r-PAGE 4 13:21:03 O'>-06-65 ELECTRICAL MAINTENANCE MONTHLY REPORT FOR APRIL DATE....

CDS ONENT.....

FAILURE DESCRIPT10H......

CAUSE OF FAILURE.........

CCNRECTIVE ACIION........

r:R.ND..

t VOLTACE OF EACH CFLL ON SPARE DIESEL CENERATOR BATTERY 04-29-85 1-XS-013-0075-PERFCRn SURVEILLANCE HG FAILURE, PREVENTIVE PERFORMCD SURVEILLANCF A284820 ASB INSTRUCTION TEST 234.4 ON MAINTENANCE INSIRUCTION TESI ON FIME FIRE PFOTECTION DETECTORS PROTECTION DETECTORS XS-013-0075-A18 DUR]NG XS-013-0075-A18 FIRST 24 HOUR CUTf.GE OF l> NIT 1

' FCV-001-0051 AUXII.I ARY FEECUATER PURP DIRTY CONTACTS CLEANEn CONTACTS ON LINIT A529219 04-30-65 b

1UR81:E VALVE WOULO NOT SUItCN 2-LS-001-0051 GDEN IN NOHnAL OR AUXILIARY CONTROL POSITICNS 04-30-85 frHTCK-234 12S CHEMICA!. (JtD VOLUMN BAD CIRCUIT CCNTROLLER REPLACE 0 HEAT TRACE A553570 CONTRft. SYSTEn HEAT TRACE CIRCUIT 42S CONTROLLER s

CIRCUIT 475 ALARn UAS IN 04-30-85 1-INVB-250,3L-120 AC VITAL INVLR TER 1-1 BAD LIGHT SOCKET REPLACE 0 LIGHT SOCKET A528736 D

INDICATGR LIGHT IS NOT BURNING UNILE AC RECTIFIER IS ENERGIZED 05--0 frTS-032-5317/

TEnPERATURE CONTRIA. ALARM POSSIBLE CAUSE UNKNOWN REPLACE 0 SELEC10R SUIICH A538673 3

SELECTOR SWITCH HOUSING FOR RFLAY ENGINE 112 WAS BROKEN 29 records listed.

a

I, i

INSTRUMENT MAINTENANCE Unit 1 1.

Performed calibration of UHI level switches LS-87-21 and -23.

A PRO is being written on both switches.

LS-87-22 and -24 are being replaced due to their previous performance problems.

2.

While reducing power on April 13, 1985 train B, high steam flow bistables came in at about 10% power.

This was due to the low limit of PC-1-72 being incorrectly adjusted.

PRO-1-85-122 was written to investigate.

3.

A modification to Barton lot 2 transmitters is in progress to solder the connector between the strain gauge and the circuit board.

This modification is required to maintain transmitter qualification after five years of operation.

4.

The Backup Source Range detector was declared inoperable due to noise appearing as counts while the high voltage was removed from the detector.

During the ice outage the detector was replaced and the channel was recalibrated.

After recalibration some noise still existed. The remaining problem was isolated to the cable between the inboard penetration and the detector.

The investigation continues.

Unit 2 1.

Performed monthly calibration of UlfI level switches, SI-196.2.

All switches were within Tech Spec tolerance.

2.

Because of a valve alignment error on the auxiliary feedwater pump recirculate line and a failure of a check valve on the turbine driven auxiliary feedwater recirculation line, the condensate header suction line became overpressurized and caused a failure of the condensate to ERCW switch over pressure switches.

The switches were replaced with ones scheduled for replacement on unit I during the ice weighing outage.

19

INSTPi. MENT DAlr0trWG ndhih Y STNRY 05-08-65 PACE 1

?

Ct w MR.COnP U r%C Si S ADDF E SS. DATE.... DESCR IP T 10N..................................... CCR R EC TIVE AC T ION.......................

' ~

A116709 1 FT 030 242 04/26/8S 1-FT-O'0-242,01CITAL READOUTS ON PNL FOR SAMPLE 1 FC 30 5242 ND 1 XI 30 5242;8AD 1 FI VELOCITf 40 STACX VELOCITY SHOU APPROX A 20%

30 5242 8 Bf.D 1 FT 30 5242A MO 1 FT 30 nISMTCH 52428.RFPLAC*D 1 FC 3) 524241 X130 5242;1 FT 30 52428 MO RECALIB. RECALIB 1 FT 30 5242A AND 1 FT 30 52428 A/84Y76 1 ROAN 04 /00 04/15/US 1-H2AN-043-200. REPLACE CATALYST IN ANALYZER NC:E;ENCM REGUESTED CATALYST TO BE CHAhCED. CHANGED CATILYST A290091 1 ?!

003 122A 04'II /8S 1 -PT-003-122A,CHECX THE CALIB 0F THE ENTIRE PRF_SS. TRAWiITTER Ut6 OUT OF CALIB.

DISCHARGE PRESS LOOP OF 1A AFW pnp RECALIM THE PRESS. TRANSMITTER. PRESS.

CODIFIER WAS OUT OF CALI6. RECALIB T)E PRESS. MODIFIER A291780 1 LT 003 V/

04/33/8S 1-LT-003-97.HARD WIRE PIN CONNECTOR FOR BARTON N0;E;rtARD UIMED SO DGED L OT 2 XnITTER TO MINTAIN OUALIFICATIONS PER SnI CCNNECIIONS;RECALIs;WRIFIE0 OPERABILITY 1 317 23 f,ND RETURN TO SERVICE A2Y1782 1 L1 033 93 04/2')/85 1-LT-003-93, HARD UIRE PIN CONrECTOR FOR BARTON NO:E;N3 FAIL URE;HARD WIRED PIN CON >ECTGt LOT 2 XnITTER TO MINTAIN GUALIFICATIONS PER Sn1 1 317 23 4 A291783 i LT 003 94 04/26/8'> 1-LT-003-V4,HARD WIRE PIN CONNECTOR FOR BARTON.NONE;HARO UIMEO SO OGED LOT 2 xnITTER 10 MINTAIN GUALIFICATIONS PER SnI CC:NECTIONS;RECALI8;WRItIE0 OPERABILITY C

e 1 317 23 ANO RETURNE0 TO SERVICE A291786 1 LI 003 $6 04/27/85 1-LT-003-56.HARD WIRE PIN CONNECTOR FOR BARTON NO:EiHARG UIMEO SOLDSED C004ECTIONS L OT 2 XnITTER TO MINTAIN GUALIFICATIONS PER SNI RECALIe VERI >IED OPERABILITY MO 1 317 23 RETCRNED TO SERVICF A2Y1787 I LT 003 '>5 04G0/85 1-LT-003-SS,HARD WIRE PIN CONNECTOR FOR BARTON NONE;HARD UIRED SO CGED 1GT 2 An1TTER 10 mINTAIN GUALIFICTATIONS PER CONNEC I IONS; R ECALIu ; WR IF IED OPER ABILITY Snl 1 317 23 AND RETURtE0 TO SERVICE A291791 1 Pi 068 340 04 07/8S 1-PT-068-340,HARD WIRE PIN CONNECTOR FOR BARTON NONE;HARD UIMEO SO CG ED L OT 2 XMITTER TO MINTAIN CUALIFICATIONS PER SNI C0i4NECT10N;RFPLACEO O RINCS TORGED PER InI 135;RECALIB VERIFIED OPERABILITY Ate 1 317 23 RETCRNED TO SERVICF A291792 1 FT 001 108 040?/851-FT-001-108.HARD WIRE PIN ComECTOR FOR BARTON NONE;NCNE-ALREADY HAN0 WIRED 10T 2 XnITTER 10 MINTAIN GUALIFICATIONS PER Sn1 1 317 23 A291793 i FI C01 10A 04/24/85 1-FT-001-10A.HARD WIRE PIN CONNECTOR FCR BARTON N0?Es tCE-ALREADY HARDWIREO LOT 2 XnITTER TO MINTAIN GUALIFICATION PER Sn!

1 317 23 A291794 1 FT 031 38 0407/8S 1-F T-001-38,HARD WIRE PIN CCMECTOR FOR BARTON NO:E-NorE; ALREADY HARDWIREO t.0T 2 XnIITER 70 m!NTAIN GUALIFICATIONS PER SnI 1 317 23 A29179S 1 FT 001 218 04G7/8'> 1-FT-001-218.HARD WIRE PIN CONNECTOR FOR BARTON NC:E; NONE ALREADY H4t0 WIRED 10T 2 XnITIER 10 mINTAIN GUALIFICATIONS.PER Sn1 e

..we.*

.:' y INSTRlr1ENT MAINTENANCE MONTHLY SunNARY 05-08-85 PACE 2 C0:10 M9.COM N FUNC SY S ADDF E SS. DAT E.... DESCR IP 1 10N..................................... CORRECTIVE ACTION.......................

1 317 23 A2917V6 1 LT 033 YH 04//o/85 1-LT-003-93,HARD UIRE PIN CONiCTOR FOR BARTON NONE.HA.40 uINE0 SO4 DERED 1 OT 2 ynITTER TO MAINTAIN GUALIFICATIONS PER SMI CGNNECIION5;RECALIH; VERIFIED OPERABILITY 1 317 23 AND RETURNED TO SERVICE A291798 1 LT 003 L107 04/26/85 1-LT-003-L107,HARD WIRE PIN CONNECTOR FOR BARTON NONE;HARD WINE 0 SOLGERED I GT 2 TPANSMITTER TO nAINTAIN GUALIFICATIONS PER CONN,:.CTIONS;RECALIHMRIFIE0 OPERABILITY dnl 1 317 23 AND RETCRNED TO SERVICE A292772 1 II Osn ^70 04/?4/85 1-11-058-678, CHECK OPERAlION OF IND IT APPEARS NONE,h0NE-VERIFIED OWERATION AND CAL 10 BE STICKING A298472 1 LM 003 198A 04/15/85 1 -L4-003-149A, REPLACE AIR GAUGE ON AIR REGULATC< NONE, GAUGES ARE RE0LtCFD PERIODICALLY.

REPLACFD GAUGE 04/12/85 1-Ln-003-164A, REPLACE AIR GAUGE ON AIR REGULATCH NONE,GAUGCS ARE PERICDICALLY REPLACED.

A298473 1 Ln 003 Jc4A REPLACLD GtUGE A2Y8474 1 Ln 033 171A 04/15/85 1 -Ln-003-171 A, REPLACE AIR GAUGE ON AIR REGULATON NONE.GAUGCd Ad PERICDICALLY REPLACED.

REPLACFD GA:JUE 04/12/85 2-Ln-003 148A. REPLACE AIR GAUGE ON AIR REGULATOM NONE;G4UGES ARE REPLeCFD PERIODICALLY A2'/8475 2 LM 003 140A REPLACED GAUGE 04/12/85 2-Ln-00.e156A. REPLACE AIR GAUGE ON AIR REGULATOR NCE CAUGCS ARE REPLIC*.D PERIODICALLY.

A298476 2 LM 003 15e.A REPLACED GAUGE 04/12/85 2-LM-OO3-164A, REDLACE AIR GAUGE ON AIR,REGULATON NONE; GAUGES ARE REDL/CFD PERIODICALLY.

A298477 2 in 003 164A REPLACED GAUGES 04/1//85 /~LM-003-171 A. REPLACE AIR GAUGE ON AIR REGULATON NONE; GAUGES ARE REDL(CED PERIODICALLY.

A?Y8478 2 Ln 003 1/1A REPLACED CAUGE A300103 1 FS C01 23A 04/30/8*., 1 FS-001-23A, min STEAn FLOW IS IN HIGH ALARN FLOU XnIITER UAS OUT OF CALIB. RECALIS.

WITH NO FLOW FLOu XnI1TER A300814 1 PS 001 /08 04/24/85 1-PS-001-2CB, SHIELD CABLE TO PS/5348 TERM 2 AND SHIELD WIRF UAS BRCKEN ON TERnItt'M. 482 5 ARE BROKEN OFF ANO 145 RES0! DERED TFE SHIELD WIRES AS18490 1K 001 72 04/16/85 1 -PC-001-72,LO LInIT CIRCUIT ON InPULSE PRESS LOU LIMI4 CIRCUIT UA5 TOO LOW. SET TE (PPEARS 10 BE TCO LOW LOW LInIt TO 13.76 MILLIAnPERES, APO WRITE NEW MR A530705

'nIR OUT OF CAL. REC (t. XnTR

/

A526260 1 El 001 2aA 04/Ov/85 1-FI-001-28A, CHECX CALIB 0F FI 1 28A A526276 1 068 340 04/18/85 1--068-340,VLV PCV 68 3400 FAILED IN THE CLOSED I/P OUT OF CAL. REC (L I/P POSITION INVESTIGATE AND REPAIR AS27689 1 LT 0/7 410 04G2/85 1--LT-0/7-410,LI ItOICATION IS NOT UORKING,FAILE0 XnIR ANO LVL Su OUT & CAL-RECALED XMTR L0u THIS WILL NOT ALL0u lHE POCKET SunP PnPS TO ANO LVL SU START AS28021 2 PS 003 121A 04/1//85 2-PS-003-121 A, REPAIR LEAXING SEAL ON PRESS SW SEAL CN PRFSS SU UAS LEAKING. REPLACED OLD Su AN^ CALIB NEW Su A>O INSTALLED AS28022 2 PS 003 121B 04/1//85 2 PS-003-1218, REPAIR LEAKING SEAL ON PRESS SW LEAXING SEAL CN PRESS SW.

REPLACED SW WITH NEW SW ANO CALIB A528023 / PS 003 121D 04/17/85 2 PS-00F121D, REPAIR LEAXING SEAL ON PRESS Su LEAXING SEAL ON PRESS SW.

REPLACED SW

INSTRtMENT r:AlkiENANCE nONThtY SU ZARY 05-08-83 PAGE 3 e

ConP 4

nR.COnP O FbhC SYS ADDR t SS. DATE.... DESCR I P T I ON...........................'.......... CCRRECIIVE APTION.......................

WITH tEu Su AND CALIB AS28742 2 PS 032 2/1 04/01/85 2-PS-082-271,ala PRESS. SW. PERIODICALLY STICKS InoROPER SFTTING Gr TIMER-ADJUSTED PS NUT AL10ulNG THE AIR COND TO START OR STOP AN0 CLEANEO CONTACTS AUT0nATICALLY AT WE CORRECT PRESS.

A529665 1 FS 039 30 ud/30/8S 1-FS-030-80, INVESTIGATE CAUSE FOR LOW FLOW ALARM BRONEN E N% LITE-REMIRED BROKEN LITE LHCN ALL CRDri FANS RUNNING CCRRECT CAUSE OF ALARN AS296V4 1 PI 068 oo 01/22/05 1-PI-068-66, min INSTRUnENT IS FAILED HIGH 1 Pn 68 66C OUT OF C4 -1 Pn 68 668 INVESTIGATE AND REPAIR BAO-RECALIH 1 Pn 68 66C REPLACE 0 1 PM 68 668 A530705 1 PC Col 72 0'4/16/85 1 PC-001-72,INVESTICATE PRCSLEn WITH LOW MINIfbn CONTROLLER UAS OUT 09 CALIB. RECALI8.

OUTPUT THE PRESS. CONTROLLER AS38626 1 PC 031

'3 04/30/85 1-PC-001-73,RECAL r.00ULE TO ACHIEVE 12.nH OR CCNTROLLER CUT CF CAL. RECAL CONTROLLER BETTER ON THE LOW END A530806 1 F1 0o8 MA 04/24/85 1-FT-068-48A,80RON LEAKING FROM TRANSnITTER LEAXING VENT PLUG-RErOVED AND CAUSING nRAD SCCARABLE CONTAnINATION M FLOOR REINSTALLEO VENT PLUCS AS48766 1 LT C03 110 04/26/85 1-LT-003-110,HARD WIRE PIN CONNECTCR FOR SARTON NCNE,HARO UIREO SOLOGED L

LOT 2 XnITTER TO mINTAIN GUALIFICATIONS PER SnI CC'tECTIO:GRECALI6;WRIFIE0 GPERASILITY

'f 1 317 23 Ato RETURNED TO SERVICE AS48767 1 LT 093 111 04/2'a/85 1-LT-003-111,HARD WIRE PIN CONNECTOR FOR BARTON NO FAILORE. HARDWIKED PIN C0t#4ECTORS t OT 2 XnITTER TO MINTAIN GUALIFICATIONS PER SnI 1 317 23 AS48769 1 FT C01 21A 04/24/85 1-FT-001-21A,HARD WIRE PIN CONNECTOR FOR 8ARICN NC'9E; NONE-A' READY HARDWIRED LOT 2 XnITTER TO MINTAIN QUALIFICATIONS PER SMI 1 317 23 AS48770 1 P1 068 334 04/29/85 1 PT-068-334,HARD WIRE PIN CONNECTOR FOR 8ARTON NCNE;HARD UIRED S0i CERED CON:ECTION LOT 2 >nITTER TO mINTAIN GUALIFICATIONS PER SnI REPLACF 0 RINGS-TONGED PER 1 317 23 InI133iRECALIBiVERItIED OPERASILITY AND RETURNED TO SERVICE A548771 1 L1 033 43 04/26/85 1-LT-003-43.HARD UIRE PIN CONNECTOR FOR BARTON NCNE;HARO WINEO SOi CERED LOT 2 xnITTER TO MINTAIN GUALIFICATIONS PER SnI CCNNECTION3;RECALIR;WRIFIED OPERASILITY I 317 23 ANO RETL*RNED TO SERVICE AS48772 I P1 058 323 04/26/85 1-PT-068-323,HARD WIRE PIN CONNECTOR FCR BARTON NCNEiHARD WINE 0 S0r DERED CON'ECTION LGT 2 XnlTTER TO MINTAIN GUALIFICATIONS PER SnI REPLACt 0 RINCS TONCED PER IMI 1 317 23 133,RECALIR4VERIFIt0 ODERASILITY A>O

. RETURNED TO SERVICE AS48773 1 FI C31 28A 04/24/85 1-FT-001-28A,HARD UIRE PIN CONNECTOR FCR-BARTON NONE;NONE UONK ALREADY PERrCRMEO TOT 2 XnITTER TO MINTAIN GUALIFICATIONS PER SnI 1 317 23 AS48/74 1 n 001 288 04/29/85 141-001-288,HARO UIRE PIN CONNECTOR FOR BARTON NCNE;NJ E ALREADY HtROWIREO 101 2 Xn111ER 10 MINTAIN GUALIFICATIONS PER SMI

INSTRtMENT MAINTENANCE MONTHLY

SUMMARY

05-08-85 PAGE 4 s

COnP CORRECTIVE AC TI0N.......................

MR. COMP 13 HMC SYS ADDR LSS. D AT E.... DE SC R I P T I ON.....................................

1 31/ 23 tis 48775 1 LY CO3 33 04/2?/85 1-L T-003-39.HARD WIRE PIN CONNECTOR FOR BARTON NONO HARD WINEO S0r CERED LOT 2 XMIT1LR 10 rmINTAIN GUALIFICATIONS PER SnI CCNrECTIONS;RECALIHiWRIFIED OPERABILITY AND RETURNE0 TO SERVICE 1 317 23 A553704 2 FI 603 17CD 04/08/85 2-F1-003-1708,2 FI 31708 IS NOT PROPERLY FIXED BRACXETS LGOSE ON Piit. REINSTALLED BRACKETS FOR FOR FINDICATOR 04/24/85 2-LM-003-143A, INSPECT I/P INTERNAL MECHANISil NO NO:E4 TOE INSPECTED INTEPHAL rECHANISM A56483I 2 in 003 198A COIL ASSEn8LY FOR ALIGNNENT AND TIGHTESS 04/23/85 2-LM-003-156A, INSPECT I/P INTERNAL TECHANIST) #O NC:Eit40NEiINSPECTE0 INTERNAL fiECHANISH A564832 2 In 003IS6A COIL ASSEMBLY FOR ALIGNMENT APO TIGHTNESS FOR ALIGNMENT AFO TIQ4TNESS A564833 2 Ln 003 164A 04/23/85 2-LM-00F164A,IINSPECT I/P INTERNAL rECHANISM NONEstGE INSPECTED INTERNAL rECHANISH AND COIL ASSEn8LY FOR ALIGHnENT AND TIGHTNESS FCR TICHTPESS AS64834 2 in 003 1/1A 04/23/85 2-LM-003-171 A, INSPECT I/P INTERNAL MECHANISM NONONCNE RC4JTINE IN9ECIION ON I/P AHO COIL ASSEMBLY FOR ALIGHnENT AND TIGHTtESS

~ TIGHTNESS A564903 1 FT 001 3A 04/24/85 1-FT-001-3A.HARD WIRE PIN CONNECTOR FOR 8ARTCH -NONE;N0rE-ALREADY HARDWINE0 LOT 2 XnITTER TO nAINTAIN QUALIFICATIONS PER SMI 1 317 23 i

C$'

53 records listed.

Jo Mechanical Maintenance Section April 1985 Unit 0 1)

Replaced the distillate pumps on the boric acid evaporator.

2)

Installed a scab plate on the 30" discharge line of the CCW heater exchanger on elevation 690'.

3)

Replaced the seals on the boric acid transfer pumps.

Unit 1 1)

Replaced 1A-A fire pump.

2)

Replaced the packing on IA-A component cooling system pumps.

3)

Performed the five year inspection on 1A-A diesel generator.

4)

Inspected #3 heater drain tank pump 1-B.

5)

Replaced the outboard seal on IB-B centrifugal charging pump.

6)

Replaced the oil pump, coupling and speed increaser on IB-B centrifugal charging pump.

7)

Inspected the moisture sepa rator reheaters.

8)

Inspected the number 2 and 3 seals on reactor coolant pump #4.

9)

Replaced carbon steel with stainless steel piping on the extraction drain lines.

10)

Plugged 21 row 2 u-bend tubes on the #3 steam generator.

11) Serviced the ice condenser.
12) Repacked 1-FCV-63-172
13) Checked the set point on 1-V1v-63-637
14) Cleaned and neo-lubed nine thimble tubes.
15) Disassembled the main generator for hydrogen leak repair.

16)

Started replacement of 1-A low press.2re turbine rotor.

17) Eddy-Current tested "B" spent fuel pit heat exchanger.
18) Moved the ejected thimble tube storage cask from the raceway to the spent fuel pit.
19) Repaired containment isolation valves: 1-LCV-3-156, 1-LCV-67-111, 1-LCV-26-243, 1-LCV-54-460, 1-LCV-43-461, 1-LCV-32-287, 1-LCV-32-297.

24

o, Mechanical Maintenance April, 1985 (Continued)

20) Repaired auxiliary feed water level control valves 1-LCV-3-156, 164, and valves 1-FCV-6-106A, 1-FCV-6-106B, and 1-FCV-43-22.

Unit 2 1)

Adjusted the packing on component cooling water pump 2A-A.

2)

Repaired the turbine driven auxiliary feedwater pump flow control valve 2-FCV-1-051.

3)

Investigating a vibration problem on 2-B stator cooling water pump.

25

  1. e

SUMMARY

OF %0RK COMPLETED MODIFICATIONS April 1985 NUREG 0588 ECN 5824 - MOV Operator Replacement Ten of twelve remaining operators were replaced this period.

The final two are expected to be completed in early May.

ECN 5881 - Limit Switch Replacement The remaining four limit switches were replaced this period.

ECN 5883 - Pressure Switch / Flow Switch Replacement Six of thirteen remaining pressure switches were replaced.

The other seven switches will be replaced in early May.

There are four flow switches remaining. These will also be replaced in early May.

ECN 5895 - Solenoid Valve Replacement All items have been completed.

ECN 5898 - Limit Switch Replacement The remaining five limit switches have been replaced by a relay scheme.

ECN_5970 - MOV Operator Replacement Five of eight remaining operators have been replaced.

The other three will be replaced in early May.

ECN 5971 - MOV Operator Replacement Two of three remaining operators have been replaced. The last one will be completed in early May.

ECN 6_032 - Ilydrogen Analyzer Replacement The modification work is complete.

The analyzers are in calibration.

This clears 28 Category IV items.

ECN 6200 - Relocate Pressare Transmitters The remaining six pressure transmitters have been relocated.

ECN 6207 - Conax Connectors Connectors have been installed on 61 of 62 components.

The remaining device will be completed in early May.

26

e

'NUREG 0588 (Continued)

ECN 6231 - Clear Interferences Workplans and planning activities were completed for rerouting componenet cooling system piping for installation of motor operators.

ECN 6278 - ABGTS and EGTS Heater Controller Replacement The controllers were replaced at the end of the unit 2 cycle 2 outage. The moisture sensor in each controller has been suspected of being defective.

A workplan is in the review cycle to jumper out this sensor.

This will be completed in early May.

ECN 6282 - Limit Switch Replacement The remaining nine unit switches have been replaced.

ECN 6398 This modification replaces limit switches with a relay scheme on ten valves.

Conduit installation is in progress.

The modification is expected to be completed in early May.

Appendix R ECN 6209 - Wrap Fire Protection Blanket Around Conduit Approximately 70 percent of the conduits assigned to this ECN have been wrapped.

ECN,6235 - Reroute Various Cables The two workplans are in the approval cycle.

Two additional workplans are being written.

ECNs__6311 and_6319 - Appendix R Items 1, 2, 4, and 5 and plug and Sprinkler Head Work in the Auxiliary Building High-Pressure Fire Protection System.

Several workplans for fi re protection were completed. Approximately five discrepancies were cleared. One documentation-only item was closed.

Material deliveries are holding up other fire protection work.

Scheduled material delivery date is May 15.

ECN 6316 - Seal for Penetrations Sealing work is complete.

27 Y

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~

V

,' 's 4

'Other Items DCR 1739 - Install VAACS Computer Diagnostics continue.

Additional hardware has been requisitioned and will be installed after the ice outage.

DCR L2108 - Flammable Liquid Storage Building This project is 98 percent complete. The remaining work consists of roof flashing, door hasps, and general cleanup.

ECN 5009 - ERCW Piping Changeout SS/CS Work on the auxiliary feedwater/ boric acid room cooler continued up to the start of the ice outage. Work will resume in early May.

ECN 5024 - Install Steam Generator Lay-Up Water System Unit 2 insulation ar.d heat trace functional were completed this period. Unit 1 insulation is still underway.

ECNs 5111 and 5503 - Office and Power Stores Building The building has been transferred to NUC PR.

The only work remaining consists of punchlist items and landscaping.

Punchlist items are material related.

The possibility of including semipermanent power to warehouse and shop facilities and paved yard storage work into the scope of these ECNs is being evaluated.

ECN 5119 - Install Radiation Monitor Cables in Conduit Conduit and cable installation is complete.

Finishing tie-ins and cable repulls will commence af ter the ice outage.

ECN 5194 - Iodine Monitor We are waiting for the power block reconfiguration to tie in the two doors into the security system.

ECN 5200 - Postaccident Sampling Facility Rework of postmodification test deficiencies continues.

i ECN 5202 - Fifth Diesel Genert or l

Permanent power tie-in will be made in May.

Installation of ERCW discharge piping is approximately 85 percent complete.

Backfilling activities are continuing.

ECN 5237 - Laundry facilitj '

Remaining work is on hold until the last wall is built.

l 28 L

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?.

'Other Items (Continued)

ECN 5373 - Condensate Demineralizer Air Compressor All installation work is completed. The vendor representative for startup testing has been rescheduled to be here sometime in May because the unit 1 ice outage began early.

ECN 5599 - Fifth Vital Battery This project is complete with the exception of TSI insulation work (Appendix R-related), which is continuing, and a few punchlist items. The remaining protective coating will be applied after maintenance has been completed on battery rooms I, II, III, and IV.

ECNs 5609 and 5610 - Makeup Water Treatment Plant This project is approximately 85 percent complete.

Pre-op tests are continuing. We are still awaiting approval from OE on deleting the sewage grinder system and installing a septic tank.

On ECN 5610, yard piping is continuing but cannot be completed until pre-op tests are conducted. Work on Turbine Building piping and 4-inch filtered water continues. Heat trace is being installed, and the HVAC system is being balanced.

ECN 5664 - Replace Relays in Wells Fargo Alarms Remaining work is on hold until OC abandons cables at the ERCW pumping station.

ECN 579_5 - Field Services Building Fire detection system work continues.

ECN 5841 - Hot Machine Shop All work is complete with the exception of some work on elevation 706.

This work is being delayed until Power Stores moves their operations to the new building. We are still awaiting drawings on the monorail to be added to the decontamination room.

A few electrical punchlist items concerning communications, fire detection, and evacuation alarm remain.

ECNs 5932 and 5935 - Power Block Modifications Some communication circuits have been checked out and problems solved.

We received word from the project engineer on April 25 that the security plan would not be approved by NRC for at least 45 days.

Some modification worx to administrative 1y controlled channels may begin in the interim.

29

'Other Items (Continued)

ECN 5938 - Feedwater Heater Replacement Structural work for monorails continued.

Piping fabrication for heaters 3 and 4 continued.

All heater nozzle modification work was completed. All heaters will be hydrostatically tested.

ECN 6057 - Cable Tray Covers Approximately 240 out of 290 cable tray covers have been remanufactured or replaced.

ECN 6182 - Cooling Tower Repairs This ECN was for repair of ice damage incurred during the winter of 1984.

This work has been completed.

ECN 6202 - Component Cooling System Surge Tank Instrumentation The mechanical tubing is approximately 75 percent complete.

New instruments are scheduled to arrive June 1.

ECN 6204 - Electrical Penetration Overcurrent Protection Fuse replacement and fuse block installation are complete. We are waiting for a Technical Specification change to place the circuits in operation.

ECN 6227 - Replacement of Laterals in Condensate Demineralizer Tanks The laterals were replaced in the receiving tank; however, the supplied new laterials did not fit in the storage and anion tanks.

These will be returned to HPD for modifications and will be installed at a later date.

ECNs 6238 and 6356 - ERCW Pumping Station Piping Erosion Three of the four degraded reducers and flanges have been changed out.

The last section is planned for May.

ECN 6339 - Modify Handswitches Four main control room handswitches in each control room were modified.

E_CN 6342 - lfcalth Physics Calibration Facility Work on this project began during the week of April 22.

Red-head anchor and concrete preparation work is being performed.

30

9, O

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' Completed Items The following items were completed during the unit 1 ice outage:

1.

DCR Ll786 - Replacement of Valve 1-TCV-24-69 2.

DCR 2032 - Caps on Reactor Coolant Pump Flanges 3.

ECN 5106 - Modifying RVLIS Head Attachment Only one other item remains on this modification.

4.

ECN 5644 - Install Vents on Automatic Dump-Back System 5.

ECN 5751 - Flange Penetration X117 6.

ECN 5754 - Relocating Limit Switches 1-LS-2-3A, 1-LS-2-9A, and 1-LS-2-12A 7.

ECN 5779 - Core Drill Main Steam Valve Room 8.

ECN 5787 - Extraction Steam Brace, Unit 1 9.

ECN 5889 - Access Platform, East Valve Room 10.

ECN 6001 - Installation of Fire Protection Isolation Valves 11.

ECN 6002 - Install Relief Valves in Condensate Storage Tank Bladder and Inspect Protective Coating 12.

ECN 6004 - Modify Embedded Plate, Unit 1 Reactor Building 13.

ECN 6006 - Install Relief Valves in Condensate Storage Tank Bladder and Inspect Protective Coating 14.

ECN 6047 - Temporary Refueling Vessel Level System 15.

ECN 6128 - Polar Crane Coupling Guards 16.

ECN 6163 - Caps on Valve Packing Leak-Offs 17.

ECN 6231 - Interference Reroutes for NUREG-0588 Items 18.

ECN 6256 - Air In-Leakage Modifications 19.

ECN 6257 - Air In-Leakage Modifications 20.

ECN 6262 - Air In-Leakage Modifications 21.

ECN 6311 - Appendix R - Core Drill Valve Rooms for Valve Operational Extension 31

(

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,o Partially Completed Items The following items were partially completed:

1.

ECN 5034 - Installation of Steam Generator Access Platforms 2.

ECN 5743 - Installation of Steam Generator Access Platforms 3.

ECN 6196 - Modification of Pressurizer IIangers 32

Y J.

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a.

TENNESSEE VALLEY AUTHORITY Sequoyah Nuclear Plant P. O. Box 2000 Soddy-Daisy, Tennessee 37379 May 13, 1985 Nuclear Regulatory Commission Office of Management Information and Program Control Washington, DC 20555 Gentlemen:

Enclosed is the Monthly Operating Report to NRC for Sequoyah Nuclear Plant for the month of April 1985.

Very truly yours, TENNESSEE VALLEY AUTHORITY P. R. Wallace Plant Manager Enclosure cc (Enclosure):

Director, Region II Director, Office of Hanagement Nuclear Regulatory Commission Information and Program Control Office of Inspection and Enforcement Nuclear Regulatory Commission 101 Marietta Street Washington, DC 20555 (2 copies)

Suite 3100 f

Atlanta, GA 30323 (1 copy)

INPO Records Center Suite 1500 Director, Office of Inspection 1100 Circle 75 Parkway and Enforcement Atlanta, GA 30339 (1 copy)

Nuclear Regulatory Commission Washington, DC 20555 (10 copies)

Mr. A Rubio, Director Electric Power Research Institute P. O. Box 10412 Palo Alto, CA 94304 (1 copy)

Mr. R. C. Goodspeed MNC 461 Westinghouse Electric Corporation P. O. Box 355 Pittsburgh, PA 15230 (1 copy)

E. J. Ford, NRC Inspector, Sequoyah Nuclear Plant

\\

1983-TVA SOTH ANNIVERSARY An Equal Opportunity Employer

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