ML20209J183

Monthly Operating Repts for Aug 1986

ML20209J183
Person / Time
Site:	Dresden
Issue date:	08/31/1986
From:	Eenigenburg E, Maxwell D COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF ADMINISTRATION (ADM), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
86-007, 86-7, NUDOCS 8609160184
Download: ML20209J183 (32)

Text

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• OPERATING DATA REPORT

Vg DOCKET NO. 050-237 DATE Sept. 2, 1986 COMPLETED BY D. C. Maxwell-TELEPHONE 815/942-2920 OPERATING STATUS NOTES

1. Unit Name: Dresden II

2. Reporting Period: August, 1986 3 Licensed Thermal Power (MWt): 2.527

4. Nameplate Rating (Gross MWe): 828 5 Design Electrical Rating (Net MWe): 794

6. Maximum Dependable Capacity (Gross MWe): 812 7 Maximum Dependable Capacity (Net MWe): 772

8. If Changes Occur in Capacity Ratings (items 3 Through 7) Since Last Report, Give Reasons:

N/A 9 Power Level to Which Restricted, if Any (Net MWe): R/A

10. Reasons For Restrictions, if Any: N/A This Month Y'r-to-Date Cumulative

11. Hours in Reporting Period 744 5,831 142,895

12. Number of Hours Reactor Was Critical 721.2 5.001.3 108.698.8 13 Reactor Reserve Shutdown Hours 0 0 0

14. Hours Generator On-Line 712.8 4.694.1 103.678.6 15 Unit Reserve Shutdown Hours 0 0 0 l 16. Gross Thermal Energy Generated (MWH) 1.641.381 10.937.152 212.570.791 17 Gross Electrltal Energy Generated (MWH) 524,502 3.538.180 68.037.973

18. Net Electrical Energy Generated.(ItWH) 495.733 3.365.115 64.301.229 19 Unit Service Factor 95.8 80.5 72.6

20. Unit Availability Factor 95.8 80.5 72.6

21. Unit Capacity Factor (Using MDC Net) 86.3 74.8 58.3 i 22. Unit Capacity Factor (Using DER Net) 83.9 72.7 56.7 23 Unit Forced Outage Rate 4.2 19.5 12.7

? 24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

Refueling outage scheduled for December 1986 through February 1987.

25 If Shut Down At End Of Report Period, Estimated Date of Startup: N/A 8609160184 860831 7 PDR ADOCK 05000 R

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OPERATING DATA REPORT DOCKET NO. 050-249 DATE Sept. 2, 1986 COMPLETED BY D. C. Maxwell TELEPHONE 815/942-2920 OPERATING STATUS NOTES

1. Unit Name: Dresden III

2. Reporting Period: August, 1986 3 Licensed Thermal Power (MWt): 2.527

4. Nameplate Rating.(Gross MWe): R99 5 Design Electrical Rating (Net MWe): 794

6. Maximum Dependable Capacity (Gross MWe): R19 7 Maximum Dependable capacity (Net MWe): 773

8. If Changes Occur in Capacity Ratings (items 3 Through 7) Since Last Report, Give Reasons: l N/A __

9 Power Level to Which Restricted, if Any (Net MWe): N/A ' l

10. Reasons For Restrictions, if Any: N/A l

This Month Yr-to-Date Cumulative

11. Hours in Reporting Period 744 5.831 132.480

12. Number of Hours Reactor Was Critical 104.1 104.1 96.700.9 13 Reactor Reserve Shutdown Hours 0 0 0

14. Hours Generator On-Line 0 0 89.793.3 15 Unit Reserve Shutdown Hours 0 0 0

16. Gross Thernal Energy Generated (MWH) 0 0 181.772.636 17 Gross Electrical Energy Generated (MWH) 0 0 58.839.233 l 18. Net Electrical Energy Generated.(MWH) -6.003 -42.279 55.684.015 l

19 Unit Service Factor 0 0 67.8

20. Unit Availability Factor 0 0 67.8

21. Unit Capacity Factor (Using MDC Net) 0 0 54.4

22. Unit Capacity Factor (Using DER Net) 0 0 52.9 23 Unit Forced Outage Rate 0 0 12.4

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

In 9th Refueling /RPR outage.

25 If Shut Down At End Of Report Period, Estimated Date of Startup: Sept. 1, 1986 i

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COMMONWEALTH EDISON COMPANY

- DRESDEN STATION I MAXIMUM DAILY LOAD

! HONTH OF AUGUST, 1986 HOUR MAXIMUM DAILY LOAD DAY ENDING KW 1 2400 801,700 2 0200 802,900 3 0100 783,200 4 1100 802,000 5 2300 801,800 6 1200 811,300 7 1100 807,500 8 0100 802,300 i

9 2400 588,500 10 '2400 712,300 11 0700 744,900 12 2400 165,800 13 2400 501,500 l 14 1900 693,300 15 0900 729,600 i 16 2400 757,500 17 1900 798,700 18 1500 801,600 19 1000 803,800 3

20 1100 804,200 l 21 1800 799,200 22 0500 798,400 23 1100 801,100 24 0100 798,100 25 1400 802,500

! 26 0800 795,100 1 27 0400 790,000 -

28 1500 790,000 29 0100 782,500 i 30 0700 775,400 31 2400 803,200

AVERAGE DAILY UNIT POWER LEVEL e

DOCKET NO. 050-237 UNIT II DATE Sept. 2, 1986 COMPLETED BY D. C. Maxwell TELEPHONE 815/942-2920, Ext. 489 MONTH AUGUST, 1986 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 735 17 762 2 759 18 755 3 707 19 764 4 752 20 763 5 767 21 756 6 770 22 733 7 774 23 756 8 641 24 722 9 425 25 733 10 643 26 773 11 417 27 708 12 1 28 739 13 392 29 742 14 594 30 740 15 636 31 695 16 656

, AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 050-249 UillT III DATE Sept. 2, 1986 r

COMPLETED BY D. C. Maxwell TELEPHONE 815/942-2920, Ext. 489 MONTH AUGUST, 1986 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 0 17 0 i

2 0 18 0 3 0 19

- 0 4 0 20 0 5 0 21 0 I 0 6 22 0 7 0 23 0 8 _

0 24 0 9 0 25 0 l

10 0 26 0 11 0 0 27 12 0 28 0 13 o 0 29

14 0 30 0 l

15 0 0 31 16 0 l

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F DOCKET NO. 050-237 "

UNIT NAME 11 UNIT SHUTDOWNS AND POWER REDUCTIONS DATE sept. 2, 1986 COMPLETED BY D. C. Maxwell TELEPHONE (815) 942-2920 j REPORT MONTH AUGUST. 1986 l

METHOD OF LICENSEE NO. DATE' TYPEl DURATION CAUSE & CORRECTIVE REASON 2 SHUTTING EVENT SYSTEM COMPONENT ACTION TO (HOURS) DOWN REACTOR 3 REPORT F CODE 4 CODES PREVENT RECURRENCE l 7 85-08-11 F 31:14 A 3 86-019-0 -- --

A " keeper" from the 2A feedwater i .

(31.2) check valve was jammed in the 2A i feedwater regulating valve pre-

) venting closure and the reactor scrammed on high water level.

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1 1 2 3 4 F: Forced Reason:

i S: Scheduled Method: Exhibit G-Instructions for l

A-Equipment Failure (Explain) 1-Manual Preparation of Data B-Maintenance or Test 2-Manual Scram Entry Sheets for Licensee l C-Refueling 3-Automatic Scram D-Regulatory Restriction Event Report ( ) File 4-Other (Explain)

(NUREG-0161)

{ E-Operator Training & License Examination ,

j F-Administrative j i G-Operational Error H-Other (Explain) i i ,

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DOCKET NO. 050-249

UNIT NAME III UNIT SHUTDOWNS AND POWER REDUCTIONS DATE Sept. 2, 1986 ,

l' COMPLETED BY D. C. Maxwell TELEPHONE (815) 942-2920 REPORT MONTH AUGUST, 1986 METHOD OF LICENSEE NO. DATE' TYPEl CAUSE & CORRECTIVE DURATION REASON 2 SHUTTING EVENT SYSTEM COMPONENT ACTION TO 4

(HOURS) DOWN REACTOR 3 REPORT f CODE 4 CODES PREVENT RECURRENCE

! 6 85-10-23 S 744:00 0 1 -- -- --

Off-line manually to 9th Refueling / Recirculation Pipe Replacement outage.

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1 2 3 4 F: Forced Reason:

S:

Method: Exhibit G-Instructions for i Scheduled A-Equipment Failure (Explain) 1-Manual Preparation of Data B-Maintenance or Test 2-Manual Scram Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (

D-Regulatory Restriction ) File 4-Other (Explain) (NUREG-0161)

E-Operator Training & License Examination .

F-Administrative I

l G-Operational Error i ,

H-Other (Explain) (

ORESDEN UNIT 2 SAFETY RELATED MAINTENANCE .

NATURE OF LER OR OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION REFUEL GRAPPLE PREVENTIVE N/A ---- -

REINSTALLED CABLE WITH HOSE CLAMP PER WR D53130 WORK INSTRUCTIONS 2&3-145A CORRECTIVE N/A --- =

REPL ACEO METER AND PERFORMED CALIBRATION ANALOG TRIP UNIT WR D48342 PER PROCEDURE 2-1601-508 PREVENTIVE N/A -- -

VI SU ALLY INSPECTED HEAT 54 %t4 N ,FOUND SOLENGID VALVE WR D54085 NO CRACKING. REINSTALLED COVER BACK ON CONDULET 2-1601-50A PREVENTIVE N/A - -

VISUALLY. INSPECTED HEAT SHRINK, FOUND SDLENOID VALVE WR D54086 NO CRACKING,PUT COVER BACK ON CONDULET 2-5746A PREVENTIVE N/A =---- -- VISUALLY INSPFCTED THE 3 METER LEADS AND EAST LPCI ROOM COOLER WR DR54143 FOUND NO PROBLEMS, EVERYTHING OK MO 202-5A PREVENTIVE N/A INSPECTED MOTOR PER WORK INSTRUCTION, WR D54269 FOUND NO PROBLEM LPCI MO 1501-32B PREVENTIVE N/A =- ---

PERFORMED MOTOR LEAD SPLICE INSPECTION WR D54366 PER INSTRUCTIONS i

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2-1001-IA PREVENTIVE N/A - - = - - ---- PERFORMED MOTOR LE AD INSPECTION, LEADS

! "A" LOOP SHUTDOWN COOLING VALVE WR 054372 OK l

902-33 PREVENTIVE N/A --

TIGHTENED SCREWS ON TERMINAL EQUIPMENT CABINET WR D54382 ST4&A PREVENTIVE N/A =- --- --------- FOUND CR ACKED HEAT SHRINK ON LE ADe WILL EAST LPCI/ CORE SPRAY RM WR 054383 BE REPAIRED UNDER ANOTHER PACKAGE COOLE2

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I DRESDEN UNIT 2 SAFETY RELATED MAINTENANCE ,

1 N A TURE OF LER OR OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION

) 902-3 PREVENTIVE N/A --- -

RET APED CONNECTION AFTER REMOVING OLO CABLE SPLICE WR D54463 TAPE FROM SPLICE FOR INSPECTION. A W.R.

WILL BE WRITTEN TO REPAIR SPLICE r

PREVENTIVE N/A SET LIMITS AND TORQUE SWITCH, WORKS 2-1201-3

) CWCU MO VALVE WR D54502 GOOD NOW P

JUNCT ION BOX 2RB-1,94 PREVENTIVE N/A --------- -- - COMPLETED INSPEC TION WITH Q. A. GASKET WR D54536 h

J.B. 2RB-194 PREVENTIVE N/A --- =

COMP LE T ED INSPEC TI ON WITH Q. A. GASKET

)

WR 054537 h

PREVENTIVE N/A --- ADJUSTED MAGNETS, WORKING FINE 517 INTERLOCK 000R$

b WR 054747 4 N/A BACKFILLED YARWAY INSTRUMENTS PER 2-2 63-5 9 ACB AND 72 A-D CORRECTIVE -

RX LEVEL VARWAYS WR 054827 PROCEDURE

)

2-305-130 CORRECTIVE N/A -- -- INSTALLED NEW SWITCH AND CALIBRATED g

CRD 22-55 ACCUMUL ATOR WR D54936 PER PROCEDURE D

U-2 D/G AIRINTAKE BOX PRESS CORRECTIVE N/A --- NO PROBLEM FOUND ON THIS GAUGE WR 0540T2

) GAUGE

) LPCI SERVICE FLOW TRANSMITTER CORRECTIVE N/A -

PERFORMED E.Q. INSPECTION PER 2-1542A WR 054320 PROCEDURE, COMPLETED CAlldRATION

)

CORRECTIVE N/A ------ -- -- PERFORMED PROCEDURE, FOUND NO PRUBLEM C)56-33D LPRM IAPRMGI WR 053627

)

1 DRESDEN UNIT 2 SAFETY RELATED MAINTENANCE ,

NATURE OF LEP OR OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION 2-24-578 CORRECTIVE N/A -- - - - - - - - - - PERFORMEO PROCEDURE, FOUND NO PROBLEM LPRM WR D53486 i LPRM 6 A-40-17 CORRECTIVE N/A - PERFORMED PROCEDURE, FOUND NO PROBLEM +

WR D52981 2-705-002 138-56-418 CORRECTIVE N/A =- == TRDUBLESHOOTED PER PR OCE D'URE , L EF T OK LPRM WR D51661 1

1 LPRM G8-33-B CORRECTIVE N/A ----- PERFORMED PROCEDURE,FOUNO NO PROBLEM

! WR D51419

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2-705-002 CORRECTIVE N/A --=- PERFORMED PROCEDURE, FOUNO NO PROBLEM LPRM 32-33D WR 050822 2-705-002 CORRECTIVE N/A -- --- TROUBLESHOOTED PER PROCEDURE, LEFT OK LPAM 3C-32-33 WR 050771 2-220-83D CORRECTIVE N/A REPL ACED BALL VALVE INTERNALS OF AIR

! 20 MSIV AIR SUPPL Y WR D53955 SUPPLY 150. VALVE i

I A D 2 0 3-2 0 CORRECTIVE N/A REPL ACED PACKING, LUBED STEM, LEFT OK 4 20 MSIV PACKING BLOWING WR D53956 i

i 52-2-1601-508 PREVENTIVE N/A =- PERF ORMED E.Q. INSPECTION PER PROCEDURE, i TORUS R X BLDG V AC. BRE AKER WR D5410T LFFT OK LIS 2/263-72D CORRECTIVE N/A --------- -== REPLACED PACKING, LEFT OK RX LOW LEVEL ECCS INITIATION WR D54268 j YA2tAV SWITCH I

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! DRESDEN UNIT 2 SAFETY RELATED MAINTENANCE ,

) NATURE OF LER DR OUTAGE MALFUNCTION EQUIPMENT M AINTEN ANCE NUMSFR CAUSE RESULT CORRECTIVE ACTION

) MOV 2-1402-4B CORRECTIVE N/A -- --- - --------- REPL ACED WORM AND WORM GEAR. REASSEMBLED WR D48592 USING NEW SHAFT TOP COVER, ALSO NEd QUAD RINGS AND 0 RINGS I

SNUBBER AT 2-1402-38B PREVENTIVE N/A --- INSTALLEO AND REMOVED SNUB 8ER FOR EMD

) WR D54623 TO 00 INSPECTION

)

2-2304-218 CORRECTIVE N/A ----- --------- REPL ACED MISSING MUT ON H ANGER SUPPORT PIPE HANGER WR D54709 STAKED BOLT AND CHECKCD FDR TIGHTNESS, L

) EFT DK

$ 2-203-10 PREVENTIVE N/A --

ADJUSTED PACKING ON MSIV MSIV WR D54710 h

2-203-10 CDRRECTIVE N/A ---

REBUILT HYDRAULIC AND AIR CYLINDERS y MSIV WR D35016 WITH NEW 0-RINGS, LEFT DK d REMOVED OLD MECH. SEAL, REPLACED SE AL 2 D- 1532 PREVENTIVE N/A ----- --- --

LPCI PUMP WR D50334 AND 0 RINGS, REASSEMBLED PUMP h

p MO-2-1501-20B PREVENTIVE N/A ====~ ---

CHANGED BULBS AND STRAIGHTENED OUT WR D53051 CONTACTS IN SOCKET, WORKS PROPERLY NOW h

SNur2ER HORIZONT AL CORRECTIVE N/A --- --- RE MO VE D, REINSTALLED SNUBBER FOR E.M.S WR 053355 WORKING DN 2A RX BLDG. EXH. F AN, LEFT p

OK k

2-5 746B PREVENTIVE N/A - --- INSPECTED AND FOUND EVERYTHING TO BE OK WEST LPCI ROOM COOLER WR 054142 d

2-1501- 3A PREVENTIVE N/A =-

PERF ORMED INSPECTION AND LEFT DK

)

LPCI MO VALVE WR 054394

)

DRESDEN UNIT 2 SAFETY RELATED MAINTENANCE NATURE OF LER OR OUTAGE MALFUNCTION EDUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION 2-C D-2 2 D-4 7 CORRECTIVE N/A -- -- =--

REMOVED DLD CRACKED DTAPHRAGM AND WR 054467 AND INST ALLED NEW ONC, LEFT OK 2-22D-44 PREVENTIVE N/A -

COMPLETED E.Q. SPLICE PER PRDCEDURE SDLENGID VALVE WR D54540 2-202-58 CORRECTIVE N/A --------- == ==- REPL ACED Ott SEAL AND HANOWHEEL.

WR 054559 INST ALLED LOCKWASHER ON DRIVE NUT HDUSING SNUBBER #1528 PREVENTIVE N/A ---

CLEANED AND INSPECTED SNUBBER,FOUND NO WR D54257 PROBLEM M02-202-TB PREVENTIVE N/A -- -

ADJUSTED PACKING PER WDRK INSTRUCTIONS QX RECIRC VALVE WR D54336 AND STOPPED LEAKAGE, LUBED THE STEM AND SPRAYED OIL DN PACKING STROKE,LEFT DK LPCN 08-25B CORRFCTIVE N/A ----- --------- FOUND BAD LPRM C ARD, BOARD W AS REPAIRED WR D54734 WITH LIKE FOR LIKE PARIS, LEFT OK LPRM 08-41A CORRECTIVC N/A ---- --------- REPL ACED BAD LPRM CARD WITH LIKE FOR WR 054735 . LIKE PARTS, LEFT OK LPRM 40-090 CORRECTIVE N/A - - - - - -

FOUND LPRM C ARD TO BE BAD, REPAIRED CARD WR 05473T BY REPLACING WITH LIKE FOR LIKE PARTS, LEFT OK 2-2541-017A CORRECTIVE N/A -- ==- REPL ACED E/P TRANSDUCER, CAL 18 RATED DRYWELL CONTAINMFNT ATMOSPHERE WR D54840 PER PROCEDURE E/P FOR FCV FC-2-2540-15B CORRECTIVE N/A ----- --- PERFORMED PRDCEDURE TO CHECK CONTROLLER ACAD AIR INLET FLOW CONTROLLER WR 055088 INDICATION, LEFT OK INDICATOR

DRESOEN UNIT 2 SAFETY RELATED MAINTENANCE .

NATURE OF LER OR DUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION 2-6400 PREVENTIVE N/A --- PERFORMED 3 MONTH AND 6 MONTH INSPECTIDN DIESEL GENERATOR WR D55tT1 PER PROCEDURES CORRECTIVE N/A -- REMOVED BROKEN LIGHT BULB, LOCAf tDN DOES LPRM GADUP II WR D5518T NOT REQUIRE BULB, BULB WAS NOT REPLACED ,

i CDRRECTIVE N/A --- - CHECKED ANALYZER CALIBRATION, FOUND NO HM 2-24048 ALARN PRDBLEMS, LEFT OK H8 MONITOR 8 CHAN. WR D55280 2A CORRECTIVE N/A - - - --- CLEANED AND INST ALLED NEW PACKING, R AN 2D 1501-44

) PUMP AND ADJUSTED PACKING, LEFT DK CCSW PUMP WR D55356

)

2-220-44 VALVE PREVENTIVE N/A - ---

CYCLED VALVE 3 TIMES AND INDICATION WR 055512 WAS CORRECT h

)

D

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DRESDEN UNIT 2/3 SAFETY HELAIFO MAINTENA'4CE ,

NATURE OF LER UR OJfAGE MALFUNCTION ECulPMENT MAINTENANCE NUM4EA CAUSE RESULT CURRECTIVE ACTION SERIAL =018 CORRECTIVE N/A --------- ---------

REBUILD CHECK VALVE PER PROCEDURE SPARE FEED WATER CHECK VALVE WR 046189 ARM SENSOR CURRECTIVE N/A ---*----- --------- REPL ACED C AP, CAllBRATED ARM, RETURNCD S/N 6 33 F156 WR D$5121 TO STOREROOM a

A.R.M. SENSOR CURRECTIVE N/A --------- --------- C AL I BR AT ED P ER WORK INSTRUCTIONS WR D55120 -

2/3 DIE SEL GENERATOR PREVENTIVE N/A --------- ---------

PERf DRMED CUSICLE INSPECilON PtR WR D51530 PROC EDURE

SPARE I.R.M. MONITORS CORRECTIVE N/A --------- --------- ADJUST ED ANO VER IFIED UUT PUf VdL TAGE GE VOLTAGE REGULATOR WR 054052 PROPERLY. PERFORMED FROCEDURE SBGT DAMPER 2/3-T504A PREVENTIVE N/A ----~~--- --------- PERF ORME D INSPECTION, EVERYTHING OK WR 054155 SBGT EXHAUST FAN 75064 - PREVENTIVE N/A --------- --------- TROUBLESHOOTED PER PROCEDURE, LEFT OK A TRAIN WR 054308 2/3 46618 PREVENTIVE N/A --------- --- -

REPL ACED A IR-S T ART SOLENUID AND DIESEL GENERATOR AIR START SYS. WR D51866 ilGHTFNED ALL FITTINGS 4 2/3 DIESEL 000 LING DATER PUMP PREVENTIVE N/A --------- ---------

RFROUTED CONDUff TO PU:4P AS RE"JUEs t F u WR 050312 2/3 6601 CORRECTIVE N/A --------- ---------

INST ALLFD NEW IUBES IN HL AT 6XCHANGtRS.

l SPARF DIESEL GEN. HEAT X WR D50999 MADF NEW HEAD GASKET S ANU FLANGE G ASKETS

ORESDEN UNIT 2/3 SAFETY RELATED MAINTENANCE .

NATURE OF LER OR OUTAGC MALFUNCTION EQUIPMENT MAINTENANCE NUMsER CAUSE RESULT CORRECTIVE ACTION 2/3-7541-50A PREVENTIVE N/A --------- --------- CLEANED CONT AC TS, RETR AINED WIRES af4 RELAY SBGT SYSTEM HEATER WR 051318 RFLAY, REPLACED COVER 2/3-7541-50B PREVENTIVE N/A - - - - - - - - - --- =- CLE ANED CONT AC TS ON RELAY, INSTALLED SBGT SY STEM HEATER RFLAY WR 051389 COVER, COVER FIT WITH NO PROBLEM 125V BATTERY DANK PREVENTIVE N/A --------- ---------

CHARGED ALL JATTERIES PER PRUCEDURE WR D53506 2/3 7506-A PREVENTIVE N/A --------- - --

FOUND MOTOR LE ADS RUBBING'INSIDE SSGT FAN WR D54154 MOIOR, TAPlNG LEAD UNDER WR 54308 2/3-7505A PREVENTIVE N/A - - - - - - - - - --------- PERFORMED INSPECTION, EVERYTHING OK S8GT DAMPER WR D54156 2/3 7507A PREVENTIVE N/A --------- --------- PERFORMED INSPEC TION, EVERYTHING 04 SBGT DAMPER WR 054158 2/ 3-7 506- A PREVENTIVE N/A --------- --------- OPENED AND CLOSED MOTOR LE ADS COVER SBGT FAN MOTOR WR 054408 FOR INSPECTION, LEFT OK 2/3-6601 PREVENTIVE N/A --------- --------- RETORQUED ENGINE CRAB NUTS, LEFT On DIESEL GENERATOR WR 054206 4

2/3 7503A PREVENTIVE N/A --------- --------- UPENED AND CLOSED JUNf10N 00X FOR 50GT ELECTRIC AIR HEATER WR 0544D7 IN SP E C T I ON , LEFT OK QX BLOG CRANE PREVENTIVE N/A --------- --------- ADJUSTHENTS WFRE MADE AND PERFURMED WR 050961 RESTRICTED MODE TEST ON REACTOR CRANE 9

4

'- DRESDEN UNIT 2/3 SAFETY REL ATED MAINT Eil4NCE .

NATURE OF LER OR OUTAGE MALFUNCTION EQUIPMENT PAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION

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I.2.M. PRE-AMPLIFIER CORRECTIVE N/A - - - - - - - - --------- TESTED PER PROCEDURE, LEFT OK WR 054243 2/3 DG INTERLOCK-OUTSIDE 000R PREVENTIVE N/A --- -- ---------

[NSP EC TED AND FOUND OUTSIDE OnOR L ATCH WR D55407 WORKING PROPERLY

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' SPAAE MSiv 3-WAf PILOT VALVE C ORR E C T IV E N/A --------- --------- REPL ACED 0 RINGS, SE ALS AND LOCKNUTS,.

WR D49193 . FOUND NO PROBLEPS WITH VALVE i

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DRESDEN UNIT 3 SAFETY RELATED MAINTENANCE NATURE OF LER OR OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION SCCAM DISCHARGE VOLUME PREVENTIVE N/A - - -

FLA*4GES REMOVED AND INST ALLED FOR WR D48990 HYDROLAZING 3-1302 PREVENTIVE N/A -- -- --

REPAIRED METAL DELAMINATION ON

) ISDLATIDN CDNDENSER WR D53066 ISOLATION CONDENSER SHELL, LEFT OK n

U3 RX SCRAMS PREVENTIVE N/A --- -

INSTALLED AND REMOVED IDURING REFUEll TEMPDRARY JUMPERS WR D48834 TEMPORARY JUMPERS PER WR INSTRUCTIONS

)

) DWB-1 PREVENTIVE N/A - - -

REPLACED RELAY AND CALIBRATED BUS 38 DRYWELL ELOWER TRIP W3 D3673D PER PROCEDURE RELAY I

PANEL 903-10 PREVENTIVE N/A --- -

REPL ACED ALL TYPE SJD-53115 C ABLES PER

) CONTROL ROOM WR D41015 WORK INSTRUCTIONS

) .

CABLES IN CABLE TRAY CT13TS CORRECTIVE N/A --

REPLACED SECTION OF CABLE AND TESTED AND CT13TN WR 055149 GDOD

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LIS 3-263-T2B CORRECTIVE N/A - - - -

REBUILT YARWAY,HYDROTESTED SUCCESSFULLY

) WITH NEW VALVE MANIFOLD INSTALLED, ECCS LEVEL YARWAY REBUILD WR D49816 PERFORMED PROCEDURE

)

3-222-5 ACB PREVENTIVE N/A --- REPL ACED PACKING, CLE ANED SE ATS PER p RECIRC SYSTEM VALVES WR D46028 PROC EDURE REFUELING CHUTE PREVENTIVE N/A --

REMOVED CATTLE CHUTE PER PRDCEDURE WR D44039 I

3-1402-24B COFRECTIVE N/A --- DISASSEMBLED LIMITORQUE, CLEANED C

-) INSPECTED PARTS. REASSEMBLED, INSTALLED CDRE SPRAY DISCH. VALVE WR D48916 NEW GASKETS, LEFT OK

)

DRESDEN UNIT 3 SAFETY RFLATED HAINTENANCE ,

NATURE OF LER OR DUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION flWCU FLANGES PREVENTIVE N/A - =- --

REINSTALLED BLIND FL ANGES ON RWCU LINES WR D48955 AFTER DECON WAS COMPLETEO ELECT 2ICAL PENETRATION PREVENTIVE N/A ---- --- --

PERFORMED E.Q. INSPECTION X-2C2B WR D492II ELECT 2ICAL PENETRATION PREVENTIVE N/A --- - - - - - -

COMPLE T ED E.Q. INSPECTION DN. ELECTRICAL X-202 EB WR 0492I2 PENETRATIDN X-2C2D PREVENTIVE N/A - - - - - -

COMPLETED E.J. INSPECTION ON ELECTRICAL ELECTRICAL PENETRATION WR D492I3 PENE TR AT ION t

X-2C2F PREVENTIVE N/A --

PERFORMED E.Q. INSPECTION ON ELECTRICAL ELECTRICAL PENEIRATION WR 0492I4 PENE TR AT ION X-202J PREVENTIVE N/A -

PERFDRMED E.Q. INSPECTIDN ON ELECTRICAL ELECTRICAL PENETRATION WR 0492I5 PENETRATION X-2D25 PREVENTIVE N/A PERFDRMED E.Q. INSPECTION ON ELECTRICAL ELECTRICAL PENETRATION WR 0492I7 PENETRATION X-202W PREVENTIVE N/A ---

PERFORMED E.Q. INSPECTION ON ELECTRICAL ELECTAICAL PENETRATION WR 0492I8 PENETRATION X-2038 PREVENTIVE N/A - ---- ---

PERFDRMED E.Q. INSPECTION ON ELECTRICAL ELECTRICAL PENETRATION WR D492I9 PENETRATION l

X-204A PREVENTIVE N/A - - - -

PERFORMED E.Q. INSPECTION ON ELECTRICAL ELECTRICAL PENEIRATION WR 049220 PENETRATION

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f, DRESDEN UNI T 3 SAFETY RELATED MAINTENANCE ,

N NATURE OF LER OR OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMSER CAUSE RESULT CORRECTIVE ACTION g X-204E PREVENTIVE N/A ==--- - - - PERF ORMED E.Q. INSPECTIDN ON ELECTRICAL ELECTRICAL PENETRATION WR D49221 PENETRATION D

X-204H PREVENTIVE N/A ---

PERFDRMED E.Q. INSPECTION ON ELECTRICAL

) ELECTRICAL PENETRATION WR 049222 PENETRATION e

X 204-L PREVENTIVE N/A --

PERFORMED E.Q. INSPECTION ON ELECTRICAL ELECTRICAL PENETRATION WR D49223 PENETRATION h

p X-204N PREVENTIVE N/A PERFORMED E.Q. INSPECTION ON ELECTRICAL ELECTRICAL PENETRATION WR D49224 PENETRATION D

X-204Q PREVENTIVE N/A ---

PERFORMED E.Q. INiPECTION ON ELECTRIC AL t) ELECTAICAL PENETRATION WR D49225 PENETRATION 8

X-2CSB PREVENTIVE N/A -

PERFORMED E.Q. INSPECTION ON ELECTRICAL ELECTRICAL PENETRATIDN WR 049226 PENETRATION D

g INSTALL RX VESSEL HEAD PREVENTIVE N/A INSTALLED RX HEAD AND RUBBER CASKET WR 054722 PER WORK INS TRUC TI ON D

3-1302 CORRECTIVE N/A - --- -- OPENED AND CLOSED MANWAY, CLE ANE D SEATING SURFACES, REPLACED STUDS AND

} ISOLATI0f4 CONDENSER WR D44124 MUTS. LEFT OK

?)

3-1501-13B CORRECTIVE N/A ------ - - - - - REINSTALLED MOUNTING BOLTS AND SAFETY LIMITORQUE WR D48700 WIRED

'd X2C45 PREVENTIVE N/A ----- - - - - ---

PERF ORMED E.Q. INSPECTION ON ELECTRICAL 3 ELECTRICAL PENETR ATION WR D48858 PENETRATION

DRESDEN U1IT 3 SAFETY RELATED MAINTENANCE ,

NATURE OF LER OR DUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECitVE ACTION X-2 04 M PREVENTIVE N/A --- -- -

PERFORMED E.Q. INSPECTION ON ELECTRICAL ELECTRICAL PENETR ATION WR D48859 PENE TR A T ION I X-2000 PREVENTIVE N/A --

PERFORMED E.Q. INSPECTION DN ELECTRIC AL ELECTRICAL PENETRATION WR D48860 PENETRATIDN ,

X-2218 PREVENTIVE N/A -- -

COMPLETED E.Q. INSPEC TION DN ELECTRIC AL ELECT 2ICAL PENETRATION WR D4921D PENETRATION X-202N PREVENTIVE N/A - - - - ---

PERFORMED E.Q. INSPECTION ON ELECTRICAL ELECT 3ICAL PENETRATION WR D49216 PENETRATION 3-2599-238 CORRECTIVE N/A ------- - FREED STOCK CHECK VALVE IN VALVE C AP, WR D51311 LAPPED WITH LAPPING COMPOUND AND REINSTALLED COVER 4

REFUELING PLATFORM PREVENTIVE N/A ----- PERFORMED INSPECTION PER PROCEDURE WR D51692 5

D-3 MD-1501-32B CORRECTIVE N/A -----

INSTALLED NEW PACKING AND LUBED WITH WR D51884 MOLYKOTE G P ASTE

)

C4388-M-ID2 CORRECTIVE N/A -

ADJUSTED SPRING HANGER TO COLD SETTING t ELCEN SPRING HANGER WR 053362 0F 644#

4 3A-1102 PREVENTIVE N/A --

ADJUSTED PACKING PER PROCEDURE AND SBLC PUMP WR 053511 REPLACED BAD HEAD GASKET i

3-1649-16 CORRECTIVE N/A --------- -- -

REMOVED VALVE SONNET AND CLEANED

)

TORUS LEVEL INST. ROOT VALVE WR D53TOS INTERNALS OF V AL VE DU T AND RE ASSEMBLED.

)

DRESDEN UNIT 3 SAFETY RELATED MAINTENANCE .

NATURE OF LER OR OdTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBEA CAUSE RESULT CORRECTIVE ACTION

, 3A-IIC2 PREVENTIVE N/A = -=- - - - - - -

ADJUSTED PACKING ON PUMP AND ALL THREE SBLC PUMP WR 053757 PISTONS 3-232-B C OR RECT I VE N/A --- - - - - - - - - - - -

INSTALLED COUPLING SPACER PER PRDCEDURE.

QX CECIRC PUMP WR 054845 38-1102 CORRECTIVE N/A --- - - - - - - -

ADJUSTED ALL 3 CYLINDERS AND REPACKED SBLC PUMP WR 055037 MIDDLE AND EAST CYLINDERS i

QV3 le.02-28 A PREVENTIVE N/A ---=-

INSTALLED AND REMOVED A TEMPORARY GAG CORE SPRAY DISCHARGE RELIEF WR 055104 ON C .S. RV. 3-1402-28A, LEFT OK VALVE QV3-1402-288 PREVENTIVE N/A --- --- = GAGED VALVE, FABRICATED C AP AND J ACKBOLT CORE SPRAY DISCHARGE RELIEF WR D55105 ASSEMBLY FROM PIPE MIDDL E, REMOVED GAG, LEFT OK 3-300 CDRRECT IVE N/A -- -

RETORQUED K-5 AND A-6 DRIVES TO 500 FT i CONTROL ROD DRIVES WR D55319 LBS. TO STOP LEAKAGE 3-202-5A CORRECTIVE N/A -- --- UNPACKED AND REPACKED VALVE, CHECKED RECIRC PP DISC WR 050149 YDKE AND LUBED STEM, LEFT OK 3-2C3-4-A-B-C-D-E-F-G-H CORRECTIVE N/A -- == = - -

INSTALLED AND REMOVED GAGS FOR HYDRO.

SAFETY VALVES WR 044041 3-2D3-A-B-C-D CORRECTIVE N/A ----- ---

CLEANED FLANGES AND INSTALLED NEW SAFETY VALVES WR D44040 GASKETS, LEFT DK 232-D CURRECTIVE N/A - - - - -

REMOVED, REBUILT, TESTED AND R6PLACED RX i CX CECIRCULATING PUMP WR D44057 RECIRC PUMP SE AL ACCORDING TO PROCEDURE l

ORESDEN UNIT 3 SAFETY RELATED MAINTENANCE ,

NATURE OF LER OR DUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION 4 3-202-5A CORRECTIVE N/A - - - - - - - ---- REPL ACED BOTH GE ARS, REPL ACED GASKETS EECIEC PUMP OISC VALVE WR 047382 AND 2 QUAD RINGS, REASSEMBLED LIMITOROUE

, LEFT OK 3-2D2-4A CORRECTIVE N/A ---

CLEANED OLD GREASE OUT AND REPLACED.

4 CECIRC PUMP SUCTION VALVE WR D47313 INSTALLED NEW GASKETS AND QUA0 RINGS 1

3-2C2-48 CORRECTIVE N/A -- -- --- --

REPL ACED WS CLUTCH, 8AD BEARINGS AND CECI20 PUMP SUCTION VALVE WR 047314 HANDWHEEL GEAR. INSTALLED NEW GASKETS 1

) RE3-2418 ACB PREVENTIVE N/A ---

REMOVED AND REINSTALLED DETECTORS FOR ACAD-CAM HIGH RAD MONITORS WR D47665 RPR WORK, LEFT DK

)

3-202-58 CORRECTIVE N/A -

DISASSEMBLED AND RE ASSEMBLED LIMITORQUE

) WR D48554 USING NEW GASKETS AND QUAD RINGS, LEFT OK

)

MO 3-220-2 CORRECTIVE N/A == --- REPACKED VALVE USING NEW PACKING, LEFT WR D4865R OK

)

3-1501-13A PREVENTIVE N/A - - - - - REPLACED, LOCKTIGHT AND S AFETY WIPED

) BAD BOLTS, CLEANED LIMITORQUE, LEFT OK 03 LIMITORQUE WR D48699

)

3-1531-328 PREVENTIVE N/A - - - - - - -- CLEANED OLD GREASE OUT AND INSTALLED 4 LPCI CROSSTIE VALVE WR D48902 NEW GASKETS AND QUAD RINGS IN LIMITORQUE t

3-1501- 32 A CORRECTIVE N/A ---

CLEANED ALL PARTS AND CHANGED GASKETS LPCI CROSSTIE VALVE WR 048903 AND QUAD RINGS IN LIMITORQUE

)

) 3-1501-288 CORRECTIVE N/A --=

REPLACED GASKETS AND SEALS AND REGREASED LPCI UPSTRE AM CON T AINMENT SPRAY WR D48904 LIMITORQUE

) -

i .

DRESDEN UNIT 3 SAFETY RELATED MAINTENANCE .

I NATURE OF LER OR OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBFR CAUSE RESULT CORRECTIVE ACTION

) 3-1531-28A CORRECTIVE N/A - - - - - - - -- -- -

INSTALLED NEW GASKETS AND QUAD RINGS AND LPCI UPSTREAM CONTAINMENT S PR AY WR D48905 NEW GREASE IN LIMITORQUE, LEFT OK 3-1501-2TB C ORR EC TIVE N/A --------- --- -

REPL ACED GASKETS AND QUAD RINGS, ALSO

) LPCI UPSTREAM CONTAINMENT SPRAY WR D48906 REGREASED. LIMITORQUE OK NOW

)

3-1531-2TA CORRECTIVE N/A - - - - - - CLEANED ALL OLD GRE ASE OUT AND INSTALLED LPCI UPSTREAM CONTAINMENT SPRAY WR D4890T NEW GASKETS AND QUAD RINGS IN

) DISCHARGE VALVE LIMITOROUE 3-1531-218 CORRECTIVE N/A - - - - --- CLEANED ALL PARTS, INSTALLED NEW GASKETS

)

LPCI UPSTREAM INJECTION VALVE WR 048908 AND QUAD RINGS AND TORSION SPRING IN LIMITORQUE, LEFT OK

)

3-1501-214 CORRECTTVE N/A - ==-- -- - -- CLEANED OLD GREASE OUT OF LIMIIORQUE

,) LPCI UPSTREAM INJECTION VALVE WR D48909 AND REASSEMBLED USING NEW GASKETS, QUAD RINGS AND MOBILUX GREASE ,

) CLEANED OLD GREASE OUT, REPLACED WS GEAR 3-1501-118 CORRECTIVE N/A --- --

LPCI COOLING HT. X BYPASS WR 048910 AND REASSEMBLED LIMITORQUE USING NEW' VILVE GASKETS AND GREASE, REPLACED ON VALVE 3 ALSD, LEFT OK

) 3-1531-11A CORRECTIVF N/A ----- - - - - - -

CLEANED OLD GREASE OUT AND REASSEMBLED LPCI COOLING HT. X BYPASS VALVE WR D48911 LIMITOROUE WITH NEW GREASE AND GASKETS h

3-1432-258 CORRECTIVE N/A - - - - - - - -- INSTALLED NEW GASKETS, QUAD RINGS AND

) CORE SPRAY INBOARD ISOLATION WR 048914 GREASE IN LIMITORQUE VILVE h

3-1402-25A CORRECTIVE N/A - - - -- REPL ACED BAD BE ARINGS, QUAD RINGS CDRE SPRAY uuTSIDE ISOLATION WR D48915 GASKETS AND INST ALLED GREASE IN

) VILVE LIMITORQUE -

p 3-220-2 CORRECTIVE N/A - - - - - - - - =-- REPLACED WORN WORM GEAR AND WORM SHAFT MAIN STREAM DRAI TO CONDENSER WR 048924 BEARING, ORIVE SLEEVE BEARINGS AND OUTSIDE =2 GREASE IN LIMITORQUE

)

DRESDEN UNIT 3 SAFETY RELATED MAINTENANCE ,

NATUdE OF LER DR DUTAGE MALFONCTIDN EQUIPMENT MA INTEN ANCE NUMJER CAUSE RESULT CORRECTIVE ACTION 3 AEB-202 CORRECTIVE N/A --- -- -- - REMOVED DECON EQUIP, CLEANED BEHIND CECIRC PUMP FLANGES WR D48953 FLANGE AND REINSTALLED USING NEW GASKETS 23Gi-48 CORRECTIVE N/A =- ------

REPLACED GASKETS AND GREASE IN VALVE LIMITORQUE WR D50058 L IMI TORQUE 3-202-4A CORRECTIVE N/A ---- INSPECTED AND REPACKED VALVE, LUBED RECIRC PUMP SUCTION VALVE WR D50148 STEM 3-1402-6A CORRECTIVE N/A ----- --- REMOVED AND DISC ARDED LANTERN RING AND CORE SPRAY WR 050256 REPACKED VALVE. CLEANED AND LUBED STEM AND GLAND AREA 3-1402-6B CORRECTIVE N/A ---

REMDVED AND DISCARDED LANTERN RING AND CDRE SPRAY WR 05025T REPACKED VALVE. CLEANED AND LUBED STEM AND GLAND AREA 3-202-5A CORRECTIVE N/A ---------

INST ALLED GRE ASE RELIEF VALVE AND MDV WR D5044D AND REMOVED DLD PLASTIC CAP 3-202-58 CDRRECTIVE N/A ----- - - - --

INSTALLED GREASE RELIEF VALVE AND MOV WR D50441 REMOVED DLD PLASTIC CAP -

FEEDW ATER SYSTEM 3/4" TEST AND CORRECTIVE N/A - ---- --

REPACKED VALVES 3299-54, 220-86 AND DRAIN VALVES IN X-AREA WR D51068 3299-55, OTHER VALVES WILL BE COMPLETED IN NEXT DUTAGE ILRT INSTRUMENTS PREVENTIVE N/A -

CALIBRATED INSTRUMENTS PER PROCEDURE WR D51359 3-15DI-5A CDRRECTIVE N/A --------- --- --

INST ALLED NEW UPPER HOUSING COVERS, NEW LPCI PUMP " A" SUCTIDN MD WR 051818 DUAD RINGS, D RINGS AND GREASE IN LIMITDRQUE LIMITORQUE

DRESDEN UNIT 3 SAFETY RELATED MAINTENANCE .

NATURE OF LER OR OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CDRRECTIVE ACTION 3-57443 PREVENTIVE N/A -- - -- ----- INSPECTED AND TAPED FEED CABLES, LEFT OK WEST LPCI RDOM COOL,ER MOTDR WR D53929 ICM 16 PREVENTIVE N/A ---- - -

REPAIRED LOOSE CONNECTDR IN DRIVE UNIT WR 053973 AMPHENDL PLUG MO-3-1501-228 CORRECTIVE N/A --- --------- REMOVED 7 RINGS OF PACKING, REPACKED WR D54423 USING 9 RINGS, LUBED ALL PACKING AND STEM WITH MCLYKOTE PASTE HEISE PRESSURE GAUGE D-2000 PSI PREVENTIVE N/A --------- - - - -

C ALIBRATED AND INST ALLED GAUGE FOR WR 054551 START UP HYDRO PER PROCEDURES 3-1501-228 PREVENTIVE N/A = -= ADJUSTED PACKING TO ELIMINATE LEAK AGE, LPCI "B" LOOP INJECTION WR 054TD7 LEFT OK COK COMP C-1, MCC 38-2 PREVENTIVE N/A == ---

RESET BREAKER AND SEEMS TO TURN ON AND WR D54755 OFF WITH ND PRDBLEM NOW CCCLE END CABLE TRAY IN CT1355 PREVENTIVE N/A --------- --------- CLEANED, INSPECTED AND REPAIRED CABLES AND CT13TN WR D54949 WITH TAPE AS PER PRDCEDURE CABLE TRAY AND C ABLE IN CABLE PREVENTIVE N/A INSPECTED AND CLEANED CABLE AND CABLE T3AY CT11M4 WR 055109 TR AYS AND FOUND NO PROBLEM CABLE TRAY AND CABLE IN CABLE PREVENTIVE N/A ------

INSPECTED AND CLEANED AND REPAIRED TRAY CT13M3 WR 055109 DAMAGED DUTER JACKET OF CABLES WITH TAPE, LEFT OK CABLE TRAY AND CABLE IN CABLE PREVENTIVE N/A --------- --------- INSPECTED, CLEANED AND REPAIRED TnAY CT11MW WR D55110 DAMAGED DUTER JACKET OF CABLES WITH TAPE, LEFT OK

ORESDEN UNIT 3 SAFETY RELATED M AINTEN ANCE .

NATURE OF LER OR OUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE R ESULT CORRECTTVE ACTION CABLE TRAY AND CABLE IN CABLE PREVENTIVE N/A - - =- ---- - INSPECTED AND CLEANED CABLE A'40 TRAYS, T2AY CT11M2 WR D55111 FDUND NO PROBLEMS CABLE TRAY AND CABLE IN CTRT PREVENTIVE N/A - --- - - = - - -

INSPECTED AND CLEANED AND FOUND NO WR 055114 DAMAGED CABLES, LEFT OK CcCLE TRAY AND CABLE IN CABLE PREVENTIVE N/A --- ---

INSPECTED AND CLEANED AND FOUND NO TRAY CT12MI WR 055115 DAMAGED CABLES, LEFT OK CABLE TRAY AND CABLE IN CABLE PREVENTIVE N/A --- INSPECTED, CLEANED AND REPAIRED T3av CT14T WR D55116 DAMAGED JACKET OF CABLE WITH TAPE, LEFT OK CABLE TRAY AND C ABLE IN CABLE PR EVE NT IVE N/A =- - ---

INSPECTED AND CLEANED AND FOUND NO TQav CT188 WR 055117 PROBLE M IN CABLES, LEFT DK CABLE TRAY AND CABLE IN CABLE PREVENTIVE N/A --- --- INSPECTED, CLEANED AND REPAIRED TRSY CT18M4 WR D55118 DAMAGED OUTER JACKET ON CABLE WITH TAPE, LEFT OK CcCLE TRAY AND CADLE IN CABLE PREVENTIVE N/A -=-- ------=

CLEANED AND INSPECTED AND FOUND NO TRAY CT18M5 WR 055119 PRDBLEMS IN CABLES, LEFT OK 3-1402-8C CORRECTIVE N/A - -- ---

INSPECTED VALVE AND CLEANED UP CS PUMP DISCH. CHECK V ALVE WR D55214 INTERNALS, REPACKED VALVE AND LUBED STEM AND STUDS, LEFT OK 3-1402-8A CORRECTIVE N/A - - --- CLEANED SODY AND DISC OUT, REPACKED CS PtiMP DISCH. CHECK VALVE WR 055215 VALVE, INSTALLED NEW BONNET GASKET AND LUBED STEM AND PACKING AND STUDS, LEFT OK SPARE CONTROL ROD DRIVES PREVENTIVE N/A - - - - - - - -- --

ALL DRIVES ON THIS PACKAGE WILL BE WR D55570 REBUILT UNDER WR 48265

-4

DRESDEN UNIT 3 SAFETY RELATED MAINTENANCE .

NATURE OF LER OR DUTAGE MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION 3-14*2-8B CDRRECTIVE N/A - =- DISASSEMBLED V ALVE, INSPECTED AND CDRE SPRAY PUMP DISCHARGE CHECK WR D55432 CLEANED ALL PARTS, REASSEMBLED, LEFT OK VALVE 3-1402-3C IB LOOP 8 STOP CHECK CDRRECTIVE N/A - - - - - - - - - --- DISASSEMBLED VALVE, INSPECTED AND VALVE WR D555D1 CLEANED ALL PARTS, REASSEMBLED, LEFT DK 590-112e A.B.C.D PREVENTIVE N/A - ---

INSTALLED AND REMDVED JUMPERS PER C?S RELAYS WR D55559 PRDCEDURE i CEBLE TRAY AND CASLE IN CABLE PREVENTIVE N/A -

INSPECTED AND CLEANED AND FDUND ND TRAY CT178 WR D55580 DAMAGED CABLES CACLE TRAY AND CA8LE IN CABLE PREVENTIVE N/A = --- ---

INSPECTED AND CLEANED AND FOUND NO 4 TRav CT17M5 WR D55581 DAMAGED CALBES 4

CCBLE TRAY AND C ABLE IN CABLE PREVENTIVE N/A =

INSPECTED AND CLEANED AND FOUND NO TRAY CT17M3 WR D55582 DAMAGED CABLES 4

i CAPLE TRAY AND CABLE IN CABLE PREVENTIVE N/A = ---

INSPECTED AND CLEANED AND FOUND NO T2AY CTITM4 WR 055583 DAMAGED CABLES t

CABLE TRAY AND CA8tE IN CABLE PREVENTIVE N/A - - - - - - - - - -- - -

INSPECTED AND CLEANED AND REPAIRED

TaAY CT18M3 WR 055584 DAMAGED DUTER JACKET OF CABLES WITH TAPE I

CABLE TRAY AND CABLE IN CABLE PREVENTIVE N/A --- --= -----=

INSPECTED AND CLEANED AND FOUND ND TRAY CT19M3 WR D55585 DAMAGED CABLES i

) CACLE TRAY AND CABLE IN CABLE PREVENTIVE N/A == ---

INSPECTED AND CLEANED AND FOUND ND T24Y CT19M4 WR 055586 DAMAGED CABLES

)

DRESDEN UNIT 3 SAFETY RELATED MAINTENANCE .

l NATURE OF LER OR 00TAGC MALFUNCTION EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CDRRECTIVE ACTION

) CcBLE TRAY AND CABLE IN CABLE PREVENTIVE N/A -

INSPECTED AND CLEANED AND FOUND NO TRav CT19M5 WR D55587 DAMAGED CABLES t

CAZLF TRAY AND C ABLE IN CABLE PREVENTIVE N/A --- --------- INSPECTED AND CLEANED AND FOUND NO t TaaY CT198 WR D55588 DAMAGED CABLES

)

FPIS 3-1349 ALB PREVENTIVE N/A -- == PERFDRMED PROCEDURE, LEFT DK INST. LINES WR 055663

)

) DEFUEL GRAPPLE CORRECTIVE N/A REMOVED OLD AIR CYLINDER AND REPLACED WR D55634 WITH NEW ONE

?

3-1299-44 CORRECTIVE N/A - - --- -----

INSTALLED AND REMOVED JUMPERS AND j MECHINICAL JUMPER FDR HYDRO WR D55801 REPL ACED C APS WITH AS FDOND CAPS

)

3-1331-33 CORRECTIVE N/A =- -

INST ALLED AND REMOVED JUMPER AND REPLACE MECHINICAL JUMPER FDR HYDRO WR D55800 C APS WITH AS FOUND CAPS

)

) 3-261-6ACB PREVENTIVE N/A -- - -

BACKFILLED SENSING LINES AND VERIFIED A LDOP VENTURI INSTRUMENTATION WR D55861 FLOW THROUGH E ACH L INE, LEF T OK

) -

MECHANICAL JUMPER FOR HYDRO OF' PREVENTIVE N/A - - - - -

INSTALLED AND REMOVED JUMPERS AND

) FEEDWATER SYSTEM WR 055866 INSTALLED PIPE CAPS

)

OPIS 1350A AND 13508 PREVENTIVE N/A -- BACKFILLED INSTRUMENT LINES, LINES INST 2UMENT LINE WR D55921 FILLED OK

) 3-213-2-13A CORRECTIVE N/A - - - - - - - - - --

INSPECTED CHECK VALVE, CLEANED THREADS, INST 2UMENT CHECK VALVE WR 055951 CHECKED FOR CRACKS, FOUND THREADS SERVICEABLE

)

_. - - . ~ _ - __- -. . - . - . - -

4-

e ,. -

UNIQUE REPORTING REQUIREMENTS MAIN STEAM RELIEF VALVE OPERATIONS Relief valve operations during the reporting period of August, 1986 are l summarized in the following table. The table includes information as to which relief valve was actuated, how it was actuated, and the circum-

• . stances resulting in its actuation, i

i Valves Description j Unit Reporting Period Actuated Actuations Conditions of Events 2 08-01-86 to 08-31-86 None

3 08-01-86 to 08-31-86 None I

I

~

4 I

+

t

! i l

i r

i l

4 1

T.

SUMMARY

OF OPERATING EXPERIENCE UNIT TWO AUGUST, 1986 08-01-86 to 08-12-86 Unit 2 entered the month on-line operating at a power level of 750 MWe and operated until August lith at 1433 hours0.0166 days <br />0.398 hours <br />0.00237 weeks <br />5.452565e-4 months <br /> when an automatic scram and turbine trip occurred because of high reactor water level.

The cause of the Rx high water level was a feedwater check valve keeper that became lodged in the 2A feed-water regulation valve which prevented full closure.

After repairs to the regulation valve were completed by st.ation personnel, the unit was made critical August 12th at 1322 hours0.0153 days <br />0.367 hours <br />0.00219 weeks <br />5.03021e-4 months <br /> and the turbine was brought on-line at 2147 hours0.0248 days <br />0.596 hours <br />0.00355 weeks <br />8.169335e-4 months <br /> of the same day.

08-13-86 to 08-31-86 The unit operated the remainder of the month reaching a power level of 802 MWe with an availability of 98.80% and a capacity factor of 84.53%.

SUM 1ARY OF OPERATING EXPERIENCE UNIT THREE AUGUST, 1986 08-01-86 to 08-31-86 The refueling outage continued during the period while maintenance and torus cleaning were being performed. Reactor criticality was initiated on August 23rd, in preparation for bringing the unit on-line.

(The Refueling /RPR outage was officially over on September 1, 1986.)

e -

o i

, o Commonwealth Edison Dresden Nuclear Power Station R.R. #1 Morris, Illinois 60450 Telephone 815/942-2920 September 2, 1986 EDE LTR: 86-007 Director, Office of Inspection and Enforcement United States Nuclear Regulatory Commission Washington, DC 20555 Attention: Document Control Desk

Dear Sir:

Enclosed, please find Dresden Station's operating data for the month of August, 1986. This information is supplied to your office per the instructions set forth in Regulatory Guide 1.16.

Sincerely, E. D. Ee sige burg Station Manager Dresden Nuclear Power Station EDE:DCM:hjb Enclosure cc: Region III, Regulatory Operations, U.S. NRC Chief, Division Nuclear Safety, State of IL U.S. NRC, Document Management Branch Nuclear Licensing Administrator Nuclear Fuel Services Manager Nuc. Sta. Div. Vice Pres.

Manager, Tech. Nuc. Sta.

Tech. Staff A.E. (2)

On-Site NRC Inspector Sta. Nuc. Eng. Dept.

Sta. Q.A. Dept.

Comptroller's Office PIP Coordinator INPO Records Center File /NRC Op. Data File / Numerical

' Ji

- __