ML20004F894

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Monthly Operating Repts for May 1981
ML20004F894
Person / Time
Site: Dresden  Constellation icon.png
Issue date: 06/15/1981
From: Maxwell D
COMMONWEALTH EDISON CO.
To:
Shared Package
ML20004F892 List:
References
NUDOCS 8106260139
Download: ML20004F894 (34)
v • d • e


Text

.

OPERATING OATA REPORT h

00CKEI NO. 050-010 W

l DATE June 15, 1981 w,,

COMPLETED 3Y D. C. Maxwell TELEPHONE (815) 942-2920 X-550 OPERATING STATUS NOTES 1.

Unit Name: Dresden I 2.

Reporting Period:

May, 1981 3

Licensed Thermal Power (MWt):

700 4.

Nameplate Rating (Gross MWe):

209 5

Design Electrical Rating (Net MWe): 200 6.

Maximum Dependable Capacity (Gross MWe): 205 7.

Maximum Oependable Capacity (Net MWe):

197 8.

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

N/A 9

Power Level to Which Restricted, if Any (Net MWe): N/A 10.

Reasons For Res trictions, i f Any: N/A' N.

~

L.

This Menth.

Yr-to-Date Cumulative II.

Hours in Reporting Period

12. ' Number of Hours Reactor Was Critical

-13 Reactor Reserve Shutdcwn Hours

14.. Hours Generator On-Line 15 Unit. Reserve Shutdown Hours I6.

Gross Thermal Energy Generated (MWH) p y -

C ;g 1.q 17 Gross Electrical Energy Generated (MWH) m /\\

,N

./

18.

Net Elec rical Energy Generated (MWH) lv~ O D. "- ~ C A-

. O N 4

19 Unit Service Factor 20.

Unic Availability Factor ng ;- M A

21.

Uni t-Capaci ty Factor (Using MDC Net)

V U, 22.

Unit Capaci ty Factor (Using OER Net) 23 Unit Forced Outage Rate i

24.

Shutdcwns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

N/A 25.

If Shut Ocwn At End Of Report Period, Estimated Oate of Star up:Jxcended Modification Outage - Shutdown Until June, 1986 mm.

w '.

8106260}C

OPERATlHG DATA REPORT DOCKET NO. 050-237 OATE. June 15, 1981 COMPLETED BY IT.' C. Maxwell' TELEPHONE (815) 942-2920 OPERATING STATUS NOTES 1.

Unit Name: Dresden II 2.'

Reporting Period: May,-1981

3. - Licensed Thermal Power (MWt): 2.527 4.

Nameplate Rating (Gross MWe):

828-5 Design Electrical Rating (Net MWe):

794

.6. ~ Haximum Dependable Capacity (Gross MWe): 812 7

Maximum-Dependable Capacity (Net MWe):' 772

-8.

If Changes 0ccur in Capacity Racings (i tems-3 -Through 7), Since Last Report, Give Reasons:

N/A 9..

Power. Level to Which Restricted, if Any (Net MWe): N/A 10.-

Reasons For Restrictions, if Any:

N/A 9

This Month Yr-to-Date-Cumulative.

11.

Hours in Reporting Pericd' 744 3.623 96.863 l

12.

Number of Hours Reactor W'as Critical 524.3 598.2

-73,736.0

'13 Reactor Reserve Shutdown Hours 0

0 o

'14.

Hours Generator On-Line 476.6 546.0 70.006.1 l

15.

Unit Reserve Shutdown Hours 0'

O 0

l 16.

Gross Thermal Energy Generated (MWH)-

755.206 824.981 138.127.937 l

17 Gross Electrical Energy Generated (MWH) 226,200 248.263 44.121.126 l

18.

Net. Electrical Energy Generated. (MWH) 211.890 220.996__

41.689.995'

19. - Uni t. Service Factor 64.1 15.1 72.3 20.

Unit Availability Factor 64.1 15.1 72.3 21.

Unit Capacity. Factor (Using MOC Net) 36.9 7.9 55.8

-22.

Unit Capacity Factor (Using DER Net) 35.9 7.7 94.2

23 Unit Forced Outage Rate 2.4 0.4 12.5 l

24.

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

i N/A l

25.

If Shut Ocwn At End Of Report Period, Estimated Date of Startup:

N/A l

I

---..c__.....w.....~_.~.,,..~.-._,..-._.~u..-__-.._..-_._..__-.-.._..

OPERATING DATA REPORT i -

00CKET NO. 050-249 DATE June 15. 1981 COMPLETED SY D. C.-Maxwell TELEPHONE (815) 942-2920 OPERATING STATUS NOTES

.l.

Unit Name:- Dresden III

~

' 2.

. Reporting Period: May, 1981 l-3 Licensed Thermal Power (MWt): 2,527 4.

Nameplate Racing-(Gross NWe):

828 5

Design Electrical Rating (Net MWe): 794 6.

Maximum Dependable Capacity-(Gross MWe): 812 i

7.-

Maximum Dependable Capacity (Net MWe):

773 8.

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

N/A

.94 Power Level to Which Restricted, if Any (Net MWe):

N/A 10..

Reasons For Restrictions, -l f 'Ar:y:

N/A a

This Month Yr-to-Date-Cumulative

-II.

-Hours in Reporting Period 744.0 3.623.0 86.448.0

-12.

Number of Hours Reactor Was Critical 744s0 3,550.1 65.837.0

^

13 Reactor Reserve Shutdown Hours

'0 0

6 14.

Hours ' Generator On-Line 744 3.513.0

'63.146.3 l-15 Unit Reser've Shutdown Hours 0

0 o

16. -Gross Thermal Energy Generated (MWH) 1,786,256 8,214,677 124.699.147 17 Gross-Electrical' Energy Generated (MWH) 572.865 2.676.011 40.676.579

.18. -Net Electrical Energy Generated.(MWH) 545,719 2,550,178 38.573.078 l

19 Unit Service Factor 100.0 97.0 73 J_

i 20.

Unit Availability Factor 100.0 97.0 73.0 l

21.

Unit Capacity Factor (Using MOC Net) 94.9 91.1 s7.7 22.

Unit Capacity Factor (Using DER Net) 92.4 88.7 56.2

23. ; Unit Forced Outage Rate 0

1.4 14.6

<24.

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

~ N/A 25.

If Shut Down At End Of Report Period, Estimated Date of Startup:

N/A

-,e-.,e

-y,,-.r

.,n

.,,-,er..--,ne.,-4,e-,.,-,w.w,--wen,

-,.,-v,w,,,+nw.,,a-n--..e.,

-.,-e,,n-e.,..noe,,,,ew e e-

,-.,,,n-~mww.-,-me-w.-w-s we,

-w v a-+,-

e-

4

' AVERAGE DAILY UNIT POWER LEVEL j

DOCKET NO.- 050-010 l

VillT Dresden I i

DATE June 15.~1981 COMPLETED.SY D. C. Maxwell TELEPHONE (815) 942-2920 MONTH MAY. 1981 OAY AVERAGE DAILY POWER LEVEL DAY AVERAGE OAILY POWER LEVEL (MWe-Net)

(MWe-Net) f

-I 0

17-0 2

0 18 0

3 0

19 0

4 0

20 0

-5 0

21 0

'6 0

22 0

7_

0~

23 ' '

o-8-

'O 24 0

i -

l 9

0-25 0

-10 0

26 o

11 0

27 0

12 ~

0 28 0

13 0-29 0

14 0

30 0

l-15 0

O "16 -

O l

I

. ~...

~

AVERAGE' DAILY UNIT POWER LEVEL 00CKET NO.~ 050-237 UtilT Dresden II DATE June' 15, 1981 COMPLETED BY D. C. Maxwell TELEPHONE-(815) 942-2920 MONTH ny. 1981 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE OAILY POWER LEVEL (MWe-Net)

(MWe-Ne t) t I~

0 17 595 2

0 18 653 3

0 19 718 4

.0 20 697 5

0 21 696 6

0' n

747 0

660

-7 23 24 343 8

0 9-0 25 326 l-

.10 0

26 322 l

l.

11 51 27 318 l-l 12 69 28 319 13 360 29 334 14 456 30 350 j-15 519 31 347 16 543 l

t

--. ~.,,_,_,--.....--._--,..- -_-..-,_. _.-- _.....,,_ _.--- ~..~ _.... -,_._.... _. -...-.,_-_,_.-.__.._ ___

r

_ i '

=

AVERAGE DAILY UNIT POWER LEVEL 4

00CKET NO. 050-249 UNIT Dresden III DATE June 15, 1981 COMPLETED BY D. C. Maxwell TELEPHONE (815) 942-2920 -

- MONTH MAY.-1981 OAY AVERAGE DAILY POWER LEVEL

. (MWe-Net)

. 0AY

.' AVERAGE DAILY POWER '.EVEL (MWe-Net) 1-

'829 17 667' 2

794 18 804 3

668 19 801-4 4

781 20 758

-3 805 21 719 6

812 22 703 818 7

23 '

731 3

816 24 791 773 798 9

25 816 26 803 11 819 27 800 12' 821 28 727 13 794 29 788 14 814 30 552 15-815 31 641 16 811 4

4 w-

,n--.-

e-

.,+,rJ.',,

.m,e--.,

--+4+4,.,-,,-

.-,,-+,,,-m,-...r-e,-r.w%m-w.--m.--%-.-.

www.,-ww.-y-y, yew--ww-teme----.--wwe,,,,--erw,

' DOCKET NO.

050 9-UNIT NAME Dra x e 1-UNIT SilUTDOWNS AND POWER REDUCTIONS DATE June 15. 1981 l

COMPLETED BY D. C. Maxwell-

. TELEPHONE (815) 942-2920 REPORT MONTH-MAY. 1981 l

1 CAUSE 6' CORRECTIVE-NETHOD OF LICENSEE NO.

DATE TYPEI DURATION REASON 2 SilUTTING.

EVENT SYSTEM COMPONENT ACTION TO f

(Il0URS)

DOWN. REACTOR 3

. REPORT #~

CODE 4

. CODES

. > PREVENT RECURRENCE i

i 8

781031 S

744 C

3 Refueling, turbine overhaul &j chemical cleaning. outage.

i i

i f

t I

i

)

i 1

i i

1 2

3 4

ll F: Forced Reason:

Hechod:

Exhibit C-Ipstructions for l

S: Scheduled A-Equipment Failure (Explain) 1-Manual Preparation of Data l

B-Haintenance of Test 2-Manual. Scram Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event. Report (

.. ) File i

D-Regulatory Restriction 4-Other (Explain)

(NUREG-0161)

E-Operator Training & License Examination F-Administrative C-Operational Error ll-Other (Explain) s

DOCKET NO. 050 "T -

UNIT NAME Dres

.s II UNIT SHUTDOWNS.AND: POWER REDUCTIONS DATE June 15. 1981 ~

COMPLETED BY D. c. Maxwell I

TELEPilONE (815) 942-2920

{

-. REPORT HONTil,__ggay. 1981 i-i i*

HETHOD OF LICENSEE.

CAUSE & CORRECTIVE-t NO.

DATE~

TYPEl DURATION REASON 2 SilUTTING EVENT SYSTEM COMPONENT ACTION TO' i

(IlOURS)

DOWN REACTOR 3 REPORT #-

CODE 4 CODE PREVENT RECURRENCE S

i i

[-

1 810103 S

255:40-c' 2

Refueling & turbine overhaul outage.

l 2

810512 F

11:44 A

Rx remained' Generator ground - manual critical turbine trip-4 i

i i

E 1

i j.

i i

l 4

1 1

i i

1

] il 2

3 4

j F: Forced Reason:

Method:

Exhibit C-Instructions for 4

S:

Scheduled

'A-Equipment Failure (Explains 1-Manual Preparation of Data

{

B-Maintenance of Test 2-Manual Scram'.

Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (

) File i

D-Regulatory Restriction 4-Other (Explain)

(NUREC-0161)

{

E-Operetor Training & License Examination i

F-Administrative

)

C-Operational Error j

ll-Other (Explain) i

DOCKET NO.

050-249 UNIT MAME Dres.. III UNIT SHUTDOWNS AND. POWER REDUCTIONS' DATE June 15. 1981 -

COMPLETED BY D. C. Maxwell TELEPHONE (815) 942-2920

'l

. REPORT HONTH MAY. 1981 4

METHOD OF LICENSEE.

CAUSE & CORRECTIVE NO.

DATE TYPEI DURATION REASON 2 SilUTTING EVENT SYSTEM COMPONENT ACTION TO (HOURS)

DOWN REACTOR 3 REPORT f CODE 4 CODES PREVENT RECURRENCE k

f i

i 1

l I

j

.l 1 2

3 4

l1 F:

Forced Reason:

Method:

Exhibit G-Instructions for-3:

Scheduled A-Equipment Failure (Explain) 1-Manual Preparation of Data

}-

B-Maintenance of Test 2-Manual Scram Entry Sheets for Licensee-C-Refueling 3-Automatic Scram

-Event Report (

-) File j

D-Regulatory Restriction 4-Other (Explain)

(NUREC-0161) ~

E-Operator Training & License' Examination F-Administrative 4

j C-Operational Error j

H-Other (Explain) i

l a

4 e

.DRESDEN UNIT 1 1

l SAFETY RELATED HAINTENANCE - MAY,1981 t

t

-NATURE OF LER OR OUTAGE HALFUNCTION2 EQUIPHENT.

HAlllTENANCE HUMBER CAUSE RESULT CORRECTIVE ACTION i. Steck Gas Hon.

Preventive WR #13204 N/AL

_N/A-Tightened' Diode D-5 holder.

l 6

i i

l

)

h.

I 4

e l

i j

t l

i i

i i

s l

l a

i i

i i

DRESDEN UNIT 2.

i SAFETY RELATED MAINTENANCE-MAY, 1981.

l NATURE 0F

. LER OR OUTAGE.

'HALFUNCTION-l' EQUIPHENT HAlllTENANCE NUMBER CAUSE

-RESULT-CORRECTIVE ACTION iCRD S/N 608C Preventive WR #1531' N/A N/A.

Rebuilt per procedure.

l CRD S/N 1869 Preventive WR #9974

.N/A' N/A~

Rebuilt per procedure, f

CRD S/N 938 Preventive WR #7319 N/A' N/A Rebuilt per procedure.

[CRDS/N833 Preventive WR #625 N/A' N/A -

Rebuili per procedure.

,CRD 3/N 2F Preventive WR #7321' N/A N/A Rebuilt per procedure.

I i CRD S/N 738C Preventive WR #624 N/A N/A' Reb'uilt per procedure.

?

l CRD S/N 229A Preventive WR #7099 N/A N/A Rebuilt per procedure.

i

!CRDS/N708-C Preventive WR #623 N,/A N/A

. Rebuilt per procedure.

1 CRD S/N 616C Preventive WR f622 N/A N/A Rebuilt per procedure.

CRD S/N 856 Preventive WR #5315 N/A N/A Rebuilt per procedure.

1 CRD S/N 96 Preventive WR #10333 N/A N/A Rebuilt per procedure.

i CRD S/N 255 Preventive WR #9971 N/A N/A Rebuilt per procedure.

Rebuilt per procedurd.

j CRD S/N 947 Preventive WR f5317 N/A N/A

,CRD S/N 660C Preventive WR #7325 N/A N/A Rebuilt per procedure.

!CRDS/N1048 Preventive WR 45320 N/A N/A.

Rebuilt per procebire.

CRD S/N 6226 Pre.ventive WR #9024 N/A N/A Rebuilt per procsdure.

^

CRD S/N 6514 Preventive WR #9980 N/A-N/A Rebuilt per procedure.

CRD S/N 333C Preventive WR #8998 N/A N/A Rebuilt per procedure.

CRD S/N 905 Preventive WR #5316 N/A N/A Rebuilt per procedure.

l' j

I o

~

DRESDEN. UNIT 2

{-

' SAFETY RELATED'HAINTENANCE-MAY,.1981

.I 4t

]

NATURE OF '

LER OR OUTAGE HALFUNCTION ~

[ EQUIPHENT..

HAlllTENANCE

' NUMBER L-CAUSE RESULT CCRRECTIVE ACTION-CkD S/N 27 Preventive WR #2755 N/A, N/A Rebuilt p'er procedure.

!!CRD S/N 43 Preventive WR #5305 N/A N/A' Rebuilt per procedure.

I CRD S/N 108 Preventive WR #2757 N/A -

N/A Rebuilt per procedure.-

[CRDS/N101 Preventive WR #1527

-N/A N/A' Rebuilt per procedure.

9

CRD S/N 753C Preventive WR #9976 N/A N/A Rebuilt per procedure.

N/A N/A Rebuilt per procedure.

i'CRD S/N.962 Preventive WR #5318 e

L CRD S/N.879 Preventive WR #11119 N/A N/A Inspected for failure to-pass leak rate' test.

hCRDS/N6514 Preventive WR #9981

'N/A N/A Replaced with CRD 397.

j CRD S/N 301 Preventive WR #11004 N/A N/A Inspected for failure to j

pass leak rate test.

1 Replaced with bRD 683.

i CRD S/N 751 Preventive WR #7100 N/A N/A l

CRD S/N 1064 Preventive WR #11092 N/A N/A Inspected for failure to pass leak rate test.

fCRDS/N1531 Preventive WR #10696 N/A N/A Replaced with CRD 8'227.

fCRDS/N261 Preventive WR #10706 N/A N/A Rebuilt per procedure.-.

l l CRD S/N 6228 Preventive WR #12616 N/A N/A Replaced with CRD 973.

i I CRD.S/N 1053' Preventive WR #1533 N/A N/A Rebuilt per procedure.

CRD S/N 261 Preventive WR #10695 N/A N/A' Replaced with CRD 942.

CRD S/N 2

. Preventive WR #5302 N/A N/A Rebuilt'per procedure, j can sin nor i prevenrive Wa sis 2n(1970)

N/A N/A Replaced with CRD 791.

I l'

I

. DRESDEN UNIT 2 l

' SAFETY RELATED 'HAINTENANCE-MAY, ~1981 f

e NATURE OF f LER OR 0UTAGE HALFUNCTIONI

~

f'EQUliHENT.

HAlllTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION

!Offges-Monitors Preventive WR #3692(1979).

N/A.

- N/A Replaced' detectors.becaus of low sensitivity.

Drywell Con-Preventive WR #11053 N/A

- N/A Switch operated but no itainment Spray power to relay's - fixed, s

[ Interlock Switcl

! 4KV Bus Under-Preventive WR #10437

'N/A N/A Cliecked calibration.

jvoltageRelays

!4KV Bus Under-Preventive WR #10436 N/A N/A Checked calibration.

! voltage Relays 4

lCRD.14-55 Corrective WR #12219 Loose-Nuts on*

Scram Outlet' Valve ' Tightened nuts & adjusted 5

Packing Cland Leaked Water packing.

I et Stem s

iCRD DC-47 Corrective WR #12120 Two Loose Nuts on Scram Outlet' Valve Tightened nuts & adjusted Packing C, land Leaked Water packing.

at Stem fLPCIDrywell Preventive WR #12131 N/A' N/A Installed spool pieces &

jContainment fire hoses for test.

! Spray 1

s CRD S/N 54 Preventive WR #7107 N/A N/A Rebuilt per procedure.

jRecire. (B)

Preventive WR #12840

.N/A N/A Reconnected & set proper jBypsesHanger tension.

i l Hanger 0203A-Preventive.WR #12919

.N/A N/A Reinstalled & set proper

M-101 tension.

j CRD S/N 8 Preventive WR #617 N/A' N/A Rebuilt per procedure.

lCRDS/N-59 Preventive WR #618

. N/A N/A Rebuilt per procedure.-

i i

l j,.nnciteocn n

n,.,.

s-i.m un A11nni

'N/A N/A.

Robseile'nor nrneedisre 4

l DRESDEN UNIT 2' i-

[

SAFETY RELATED MAINTENANCE.- MAY,1981 p

NATURE OF LER OR OUTAGE HALFUNCTION-CAUSE RESULT-CORRECTIVE ACTION l

EQUIPHENT,

MAINTENANCE' NUMBER i

CRD S/N 1 Preventive WR #5301

,N/A-N/A Rebuilt'per procedure..

. Replaced with CRD 202C..

l CRD S/N 962 Preventive WR #5295(1980)

N/A.

N/A

, CRD S/N 6228 Preventive WR #2768

.N/A N/A Rebuilt per' procedure.

I N/A N/A.

Replaced with CRD 6226..

' CRD S/N 946 Preventive WR #2753(1979) i CRD S/H 762C Preventive WR #5314 N/A

.N/A Rebuilt per procedure.

i CRD S/N 938 Preventive WR #7320(198 3).

N/A N/A Replaced with CRD 7620.

! CRD S/N 590 Preventive WR #1530 N/A N/A Rebuilt per procedure.

{ CRD S/N 82 Preventive WR #5292 N/A N/A Replaced with CRD 5408.

i j CRD S/N 106 Preventive WR #1528

'N/A N/A Rebuilt per procedure.

CRD S/N 2F Preventive.WR #7322 N/A -

N/A Replaced wl;.Y CRP 322-C.

CRD S/N 896 Preventive WR #1532 N/A

. N/A Rebuilt per procedure.:

j CRD S/N 588-C Preventive WR #2746(197 7)

N/A N/A.

Replaced with CRD 1236.

i

'CRD S/N 751 Preventive WR #7101 N/A N/A Reb 6ilt per proceduke.

j CRD S/N 333C Preventive WR #8997(198 ))

N/h N/A Replaced with CRD.261.

i i CRD S/N 39 Preventive WR #5304 N/A N/A Rebuilt per procedure.

] CRD S/N 6127 Preventive WR #12617 N/A.

N/A Replaced with CRD'6454.

I jCRDS/N82 Preventive WR #5306 N/A N/A Rebuilt per procedure.

CRD S/N 710C Preventive WR #10331 N/A N/A Rebuilt per procedure.

CRD'S/N 397 Preventive.WR #2758 N/A N/A Rebuilt per p'ocedure.

r 1

DRESDEN UNIT 2

. SAFETY RELATED HAlNTENANCE-MAY, 1981 NATURE OF LER OR OUTAGE HALFUNCTION-EQUIPHENT.

HAlllTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION Rx liard Coolin j Preventive WR f6933 N/A N/A Repacked'2. valves on 4th Line floor & 4 valves on 3rd flooc.

"A" Recire.

Preventive WR #13186 N/A N/A Welded new nip'ple'& pipe Pump Discharge cap.

202-5A Rod Select Corrective WR #12545 Bent Pin on R'elay Could Not Select Straightened pin.

Matrix for Rod E-4 to Lower Letter /

Number Rod CRD 22-55 Preventive WR #13195 N/A N/A Adjusted scram inlet valve stem to prevent-leak.

SRM #24 Monitor Preventive WR #12031 N/A N/A Installed test resistor, on meter output circuit &

removed after testing.

IRM Monitor Preventive'WR #11596 N/A N/A Installed test resistor on.IRH monitor & removed after testing.

Isolation Con-Corrective WR #11761 7.

Cracks in Center Welded & installed Denzer Baffle Support st'iffeners.

Member CRD S/N 202-C Preventive WR #5308 N/A N/A Rebuilt-per procedure.

CRD S/N 587C Preventive WR #1529 N/A N/A Rebuilt per procedure.

CRD S/N 735-C Preventive WR #11158 N/A N/A Inspected for failure to pass leak rate test.

CRD S/N 124 Preventive WR #620 N/A N/A Rebuilt per procedure.

CRD S/N 1236 Preventive WR #11157 N/A N/A Inspected for' failure to I

na=a leak rate test.

DRESDEN UNIT 2 SAFETY RELATED HAINTENANCE-MAY,.1981'

~

NATURE OF

, LER OR OUTAGE HALFUNCTION-i EQUIPHENT.

MAlllTENANCE NUMBER CAUSE RESULT.

CCRRECTIVE ACTION

)CRD S/N 6336 Preventive WR #7103 N/A N/A.

Rebuilt per procedure, g.

jCRDS/N516C Preventive "JR'#8704 N/A N/A Rebuilt per procedure.

CRD S/N 998 Preventive WR #10710 N/A N/A Rebuilt per procedure.

l CRD S/N 6348 Preventive WR #2769 N/A' N/A Rebuilt per procedure.

I lCRDS/N688C Preventive WR #10708.

N/A N/A'-

Rebuilt per procedure.

l CED S/N 390C Preventive WR #5309 N/A N/A Rebuilt per procedure.

j CRD S/N,254 Preventive WR #10705 N/A

-N/A Rebuilt per procedure.

l'CRDS/N588C Preventive WR #2760 N/A N/A-

. Rebuilt per procedure.

I jCRDS/N62 Preventive WR #10702 N/A N/i Rebuilt per procedure.

I j CRD S/N 7000 Preventive WR #2762 N/A N/A Rebuilt per procedure.

!CRDS/N570C

' Preventive WR #5310 N/A N/A Rebuilt per procedure.

I lCRDS/N78 Preventive WR #619 N/A N/A Rebuilt per procedure.--

l

! M02-1201-1 Preventive WR #10260 N/A N/A Installed new rings.5 l

replaced packing.

1

! Valve 2-1501-20B Prev ntive WR #10923 N/A N/A Replaced' auxiliary elec-i*

tric contacts.

1 i1500 System Preventive WR #8856 N/A N/A Ground welds for ISI.'

jPiping

' Isolation Con-Preventive WR #9493 N/A N/A Repacked valve.

denser M01301-1 i

jCRD D-2 Corrective WR #12826 Bad Solenoid Valve l) rive Not Withdrawn Replaced valve #120.

i l

l 4

DRESDEN UNIT L2 SAFETY RELATED MAINTENANCE-- MAY,1981 g

i NATURE 0F LER OR OUTAGE

' MALFUNCTION-EQUIPHENT.

MAlHTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION HSL Plugs Preventive WR #9201 N/A N/A Removed 4 MSL plugs.

SBl.C Relief Preventive WR #9197 N/A N/A Check'ed settings.

j Valve i

I HPCI LLRT Line

. Preventive WR #4353(1930)'

N/A N/A Repacked leak downstream o( 2301-5.

?

~

L HPCI Booster Preventive WR #7449(19 30)

N/A N/A-Found. oil sightglas's cles lPumpThrust

& fabricated vent for

Baaring bearing housing.

l2-1201-2 Prc.ientive.WR #13053 N/A N/A Tightened packing.

Icolation Con-Preventive WR #11486 N/A N/A-Replaced & recalibrated.

i denter Level j Indicator 2A Service Water Preventive WR #12875 N/A N/A Tested undervoltage. load

~

Pump Feed Breaka r shed.

250VDC MCC #2 Preventive.WR #11936 N/A N/A Welded attachments.

4 l'250VDCMCC#2B Preventive WR #11936(S tave)

N/A.

N/A Welded attachments.

i l250VDCHCC#2A Preventive WR #11936(S lave)

N/A N/A Welded attachments.

1 250VDC MCC#2 Preventive WR'#11936(S lave)

N/A' N/A Welded attachments.

j 250VDC MCC Main Preventive WR #11936(S lave)

~N/A N/A' Welded attachments.

l & Reserve Busf; I

Accua. 26-59 Preventive WR #11019 N/A N/A Changed out accumulator'.

5 l Torus /Drywell Preventive WR #9190(1930)

N/A N/A Inspected &' set torque j Vccuum Breakers settings.

t: Electromatic &

Preventive WR #11094

'N/A N/A Removed blanks.

i 1

1

l DRESDEN UNIT. 2 -

. SAFETY. RELATED HAINTENANCE-- MAY,1981 4

NATURE OF l.ER OR OUTAGE HALFUNCTION-'

3

! -EQUIPNENT

. HAlitTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION j 2A Target Rock Preventive WR'#10278 N/A

.N/A Replaced shorted pressure switch.

4 Terget Rock Preventive WR f8807 U/A N/A.

Replaced solenoid.

jSolenoid l

i Hechanical Snub-Preventive WR #11727 N/A N/A Tested snubbers per SOP.

1 ber Tests 1

j llPCI 2301-3 Preventive WR #8505 N/A N/A Changed pressure seal ric.

B Core Spray Preventive WR #13022 N/A N/A Tightened' fitting at air 4

{. Testable Check supply.

Valve f CRD's 34-23,42~

' reventive WR #13033 N/A N/A Re-torqued fittings.

' 31, 34-55, 22-lh 10-19, 38-43, j ;22-19 CRD's 10-19, 34-Preventive WR #13192 N/A N/A -

Re-torqued fittings.

23,'34-43, 34-5
.,

34-31, 10-23,.

j Torus Sample Preventive WR #13324 N/A N/A Tested - found ok.'

l Valve 8501-1B iHPCISteamSup-Preventive WR #13147

-N/A

'N/A Installed new seal ring.

ply Valve 2301-:

l RPS Relay 590-Preventive WR #13155 N/A

N/A Repaired' broken wire.

l121A lSRM-IRHDrive Preventive WR #8966 N/A N/A Checked connections &

l Modules filled with oil.

i P8)

N/A' N/A Replaced limit switch.

Preventive WR #8819(19 jTurbineValves 4

L l

t DRESDEN UNIT 2

~

SAFETY RELATED HAINTENANCE-MAY,1981 l

cV a

NATURE OF

.LER OR OUTAGE'

-HAtFUNCTION-j, EQUlPHENT.

HAlHTENANCE NUMBER --

CAUSE RESULT-

CORRECTIVE ACTION-1!l2ATargetRock Preventive'WR'#10289 N/A

N/A.

Changed 5 recalibrated.-

i i Bellows Leak

!.PressureSwitcl ei

!i A0 2-1402-9B Preventive WR #12137 N/A

.N/A Repaired. cut'c'able.

I Bus Tie - Bus Preventive WR #12076 N/A N/A' Jumpered for tests.

l 28-29

\\

. Drywell Electri-Preventive WR #12014 N/A-N/A-Inspected & repaired bad

! cal Penetratioos insulation.

f IIPCI CSLO Cond.

Preventive WR #13229 N/A' N/A' Replaced brushes &

j, Pump

'cler.ned arms.

4i! 559-110B Relay Corrective WR #12366 Loose Wire Would Not Reset Tightened wire, i

I Preventive WR #11362 N/A N/A Failed LLRT - replaced l;FWCheckValve l2-220-58A valve.

'i ll"B" Outboard Preventive WR #13048 N/A-N/A Installed new seal ring.

l l Feed Check Valve i

i liydraulic Snub-Preventive WR #11725 N/A N/A Tested per DMP 1600-2..

i; ber Test i

iI;'.Hydrtulic Snub-Preventive WR #11726 N/A N/A Tested per DMP 1600--2,

}

ber Test t

}fAcousticMoni-Preventive WR #7385 N/A.

N/A Replaced sensor on 4A.

tors LPRM Cables Preventive WR #11176 N/A N/A' Pulled cables, remade i

connectors, checked re-l sistance readings.

SRM/IRM Drives Preventive WR #6405 N/A N/A Replaced allIloading bust -

I ines & adjusted to dampe i.

DRESDEN. UNIT 2

^

. SAFETY RELATED MAINTENANCE - MAY,1981 i

i

' NATURE OF LER OR OUTAGE:

HALFUNCTION-i EQUIPHENT.

HAlllTENANCE NUMBER CAUSE.

RESULT CORRECTIVE ACTION p Rx Electromatic Preventive WR #10932 N/A-N/A Replaced pilot assembly, j Accum. 34-59 Preventive WR #13261

.N/A N/A Replaced with.Accum. S/N A7315.

CRD 38-11 Preventive WR'#13197 N/A

'N/A' Adjusted scram' inlet valv stem to prevent leak.

I Air Leak on Preventive WR #12715 N/A N/A Replaced with rebuilt valv j 1601-20A j Air Leak.on Preventive WR #12716 N/A

'N/A Replaced with rebuilt valv i 1601-24.

i jDrywellCover Preventive WR #9186 N/A N/A.

Installed cover.

ij IIPCI Turbine-to-Preventive WR #12431 N/A N/A' Creased coupling.

Main Pump Coup-
ling j

IIPCI Turbine Preventive'WR #7210 N/A N/A Repacked valve.

! Stop Valve Drain

{ Valve 2301-64 IIPCI lli-Pressure Preventive WR #7211 N/A N/A Cround out & sealed,seld Drain Pot Level leak.

l..SwitchLower l Iholation

! hcoustic Moni-Preventive WR!f8916 N/A N/A Changed impedance.

ltorPreamp.

Recire. Pump Preventive WR #13216 N/A N/A Checked - found ok.

! Discharge Bypas i

M02-202-7B i

i

~

Burned & Wet Brush Inoperable Pump Changed brush.

llPCI Gland Exh.

Corrective WR #12308 l

i

+

DRESDEN UNIT. 2:

i SAFLTY RELATED HAINTENANCE-MAY,1981

^*

i i

f NATURE OF LER'OR OUTAGE HALFUNCTION-EQUlPHENT.

MAlllTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION L CRD D-4 (#14-15 ) Preventive WR'fil199' N/A' N/A Checked Asco.' valves -

found to work: properly.

Worn. Packing Cap Stem Leak.

Installed 5" pipe cap'S.S M02-1201-1

, Corrective WR #10259 l'

Upstream

& cut packing 'ff.

o 1

! MS Drain Valve Preventive WR #9194' N/A~

N/A" Lubed & adjusted packing'.

' 2-220-1 Rx Ilead Preventive WR f)134 N/A N/A Replaced head.

j lSBLOFlow Preventive WR #1'1012 N/A N/A Visual inspection to in-Switch sure paddle intact.

lMSIV203-2D Preventive WR #12103 N/A N/A-Rebuilt hydraulic-anubber i

&' air operator.

!1 MSIV 203-2A Preventive WR #12099 N/A N/A Rebuilt hydraulic snubber-

& air operator.

l 0.B. MSIV's Preventive WR #9161 N/A N/A Cleaned & lubed guide '

posts, repacked valves. '

MS Drain Valve Preventive WR #9195 N/A N/A Lubed &-adjusted packing.

i 2-220-2 I.B. MSIV's Preventive WR #9162 N/A N/A-Cleaned & lubed guide-

}

posts,' repacked valves.

5 j MSIV 203-2B Preventive WR #12097 N/A N/A Rebuilt hydraulic anubbet

& air' operator.

MSIV 203-2C Preventive WR #12104 N/A N/A Rebuilt hydraulic anubbet

& air operator, j.RxRacirc.By-Preventive WR #12022

.N/A N/A Tightened valve bonnet'

) psse Valve

& studs.

1 i

4

DRESDEN-UNIT 2

?'

SAFETY RELATED MAINTENANCE

  • MAY,1981 L

NATURE OF LER OR OUTAGE MALFUNCTIOH-EQUlPHENT.

MAlllTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION

~

,2A LPCI Heat Preventive WR'#11888 N/A N/A Replaced defective tubes

!Exchrnger

& end covers.

!RxPiping&

Preventive WR #11713

' /A N/A Removed PT indications

!Micca11aneoes after ISI.

!Pipingllange.s

! Icolation Con-Preventive WR #11116 N/A' N/A Removed inspection equip-l denser ment & put cover back on.

i?

N/A N/A Rebuilt scram solenoid.

{CRDE-12 Preventive WR #13025 i

' "B" Elec tromatic Corrective WR #13097 Indicator Switch Valve "Open" Indi-Rewired switch.

i Wired Backward' cation Always Up l Accum. C-13 Preventive WR #13013 N/A N/A Jumpered for 00S.

LPCI Loop Brean

. Preventive WR #12988 N/A N/A Replace'd micro switch &

jDetectica P recalibrated.

[ Switch l

N/A N/A Replaced relay.

j Accum. Pressure Preventive WR #12998 l Leval Rod Blocl<

i Ralsy 4

IRxHeadSpray Preventive WR #12938 N/A N/A Machined.045" in '

}Flenge gaskec groove.

1 i CRD Scram Pilot Preventive WR #4723(19 79)

N/A N/A Rebuilt & tested all i Valvas pilot valves, i

! Crepple Track Preventive WR #12385 N/A N/A Jumpered to replace

.i Switch switches.

lFuelChannels Preventive WR #10019 N/A N/A Inspected & installed fue l

j

' assemblies, channels, &

l j'

fasteners.

l l

i 9

~

3 4;

'DRESDER. UNIT 2-SAFETY RELATED MAINTENANCE - MAY,1981 k

NATURE Of LER OR OUTAGE HALFUNCTIOH-

{.

MAlllTENANCE NUMBER CAUSE RESULT.

CORRECTIVE ACTION EQUIPHENT.

MCC 28-2 Preventive WR #11929(S lave)

N/A N/A; Welded attachment points.

i McC28-3 Preventive WR f)1929(E lave)

N/A A

Welded attachment points.-

.N/A N/A Ch.nged out accumulator. '

- Accum. 42-55 Preventive WR #10383 l Chrek Valve 220-h9 Preventive WR #11835 N/A N/A Cle4ned & inspected.

I Toruo Hanway Preventive WR #9183 N/A N/A Install new gaskets, clos f

& sealed west hatch.

' "A" FW Header Preventive WR #13188 N/A N/A Tightened packing.

i Stop 220-57A I

! Accum. 22-55 Preventive WR #13136 N/A-N/A.

Installed new accumulatos 1-i Safety Valves Preventive WR #13038 N/A N/A Tightiened unions.

iG&H 1;

N/A*

N/A Installed new accumulator Accum 26-31 Preventive WR #13181 Re' laced pilot assembly.

Rx Electromatic Preventive WR #10931 N/A-N/A p

Rx Safety Valve Preventive WR #9177 N/A N/A Cagged for hydro.

)ExElectromatic Preventive-WR #10934 N/A N/A Replaced pilot, assembly

6. gasket.

I HPCI Drain Pot Preventive WR #9675 N/A N/A Repaired leak.

!2-2301-31 lRxElectromatic Preventive WR #10933 N/A N/A

. Replaced in position 7053 !

I.' Vent Upstream of Preventive WR #13037 N/A N/A Repaired. crack in' weld, t

iH02-1301-2 j

1 j Drywell Equipmeni Preventive WR #9179 N/A N/A' Closed & ran LLRT.

Hntch l

~

~

DRESDEN UNIT 2 4

SAFETY RELATED HAlHTENANCE-- MAY,1981-NATURE OF LER OR OUTAGE MALFUNCTION-EQUIPHENT HAlflTENANCE -

NUMBER CAUSE RESULT CORRECTIVE ACTION Malay 595-103C Preventtve WR #11949 N/A.

N/A Replaced relay.

i.

l.U-2 MS1V's Preventive WR #11844 N/A N/A Replaced bad limit switcl checked all resistances, repaired all broken seal-.7 l

tite, checked & repaired i

all wiring.

l l~RodHovement Preventive WR #10413 N/A N/A Replaced wrong relay, ad-

~

Intert Timing justed timer & moved wiring to match prints..

i I

{'Isolsti9nCon-Preventive WR #7466 N/A.

N/A Repacked valves.'

I'deneer 2-1301-2

{-BonnetDrain Valves l 2-1601-2 Torus Preventive WR #3745(19 79)

N/A N/A-Rebuilt air cylinder in-i yent Valve ternals.

~

Ieolation Con-

' Preventive WR #3610 N/A N/A' Repacked valve.

! denser Steam-I lina Icolation Velva l2-1601-31A&B Preventive WR #9178(19 30)

N/A N/A Inspected - foupd t'o be f

{ Torus /Rx Bldg.

within specifications.

j Vccuum Breakers

A0 2-220-46 Preventive WR #8466(19 30)

N/A N/A Replaced diaphraps.

l

! Icoletion Valve

. Preventive WR #11255 N/A N/A Replaced valve internals.

for Instrument

! Air to AO 2-230 L-31 I

.i Preventive WR #9178(19 60 )

N/A N/A Replaced valves per pro-j Rx Safety Valve

-A,B,C,D,E cedure.

i i

l

}

l 5

- l

~

DRESDEN UNIT 2 -

j

. SAFETY RELATED HAINTENANCE -- MAY,1981 i

i NATURE OF l.ER OR OUTAGE-MALFUNCTION-l EQUIPHENT.

.MAlllTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION

}2A LPCI Heat Preventive WR #12003 N/A.

N/A Removed & replaced 108

Exch:nger defective tubes.
MSIV 203-1C' Preventive WR #12101 N/A_

N/A Rebuilt & installed air l

operator, hydr'aulic snub-ber, pilot assembly.

i jMSlv 203-1B Preventive WR #12102 N/A N/A-Rebuilt & installed air j

operator & hydraulic j

snubber.

iMSIV 203-1D Preventive WR #12100 N/A N/A Rebuilt & installed air ;

j operator & hydraulic snubber.

l

1A Inboard MSIN Preventive WR #11695 N/A N/A Rebuilt & installs, air iPilot cylinder, hydraulic cylinder.

!{122Valveon Preventive WR #12753-N/A' N/A Changed solenoid valve, D2 Drive

!CRDS/N6285 Preventive WR #1535(1979)

N/A N/A Rebuilt per procedure.

jHCC29-4,1,2, Preventive WR #11929 N/A N/A Welded attachment points.

! 7; MCC 28-1, 2, I 3, 7 1

HCC 29-1 Preventive WR #11929(S lave)

N/A N/A Welded attachment points.

jHCC29-4 Preventive WR #11929(S lave)

N/A N/A Welded attachment pointc.

i lMCC28-7 Preventive WR #11929(S lave)

N/A N/A Welded attachment points.

MCC 29-2 Preventive WR #11929(S Lave)

N/A N/A Welded attachment points.

!MCC 29-7 Preventive WR #11929(S tave)

N/A N/A Welded attach.nent points.

i s

3 5

DRESDEN UNIT 2

+

I SAFETY RELATED MAINTENANCE MAY,1981 f

l NATURE OF LER OR OUTAGE MALFUNCTION-EQUIPHENT MAlllTENANCE

. NUtiGER CAUSE RESULT CORRECTIVE ACT10N j Raley 1430-1011 Preventive WK #12307 N/A N/A Changed out badly burned 7

in Penal 902-3:

contact.

I in Auxiliary

l. Electric Room

[

i.

1 Volva 2-0302-22 Preventive WR #12365 N/A N/A Repaited limit switch.

j,*

! ECCS Instrument Preventive WR #12495 N/A-N/A Backfilled.all lines.

lSensingLine J

?

j lierd Spray Corrective WR #12505 Wire Caught in Valve Not Closing Removed & tied up wire.

jSupplyValve Contact Electrically i

jCRDG13'(26-51]

Preventive WR #12565 N/A N/A

. Adjusted valve stem down I turn.

} CRD H3 (30-11)

Preventive WR #12566 N/A

.N/A Adjusted valve stem down I

I tu'rn.

lCRDH9(30-35)

Preventive WR #12567 N/A '

N/A Adjusted valve stem down.

I turn, f'

j 2A Racire. Pump Preventive WR #12627 N/A N/A Inspected for oil leak -

jOilSightClass found nothing.

i CRD L-7, M-9, Preventive WR #12624 N/A N/A Jumpered for maintenance.

l M-12,

i r

.I CRD C-13 (26-51 Preventive WR #12679 N/A N/A Replaced disc, retainer, i

I, ring, & gasket.

1

{CRDC-13(26-51 Preventive WR #12684 N/A N/A Adjusted limits to clear

}& H-3 (30-11) scram lights.

l lCRDC-13 Preven'tive WR #12752 N/A N/A Changed solenoid valve.

HPCI Room Re-Preventive WR #12711 N/A N/A Replaced 3/16'! orifice

stricting Orificq with 1/2" orifice.

4

DRESDEN. UNIT 2 SAFETY RELATED HAINTENANCE-MAY,1981 NATURE OF LER OR OUTAGE HAL FUNC~.10N -

EQUIPHENT HAlllTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION Accum. J-12 Preventive WR #12598 N/A N/A Replaced' accumulator.

(34-47)

~

Parconnel Air

. Preventive WR #12282 N/A N/A Installed & removed stront Lock back for LLRT ' test.

Icoletion Con-Preventive WR #10994 N/A N/A Installed & removed ligh't denser ing for inspection.

IIPCI Control Preventive WR #12192 N/A N/A Inspected for grouad -

found none.

Power CKT 6 Cchinnt MS Area Temp-Preventive WR #12853 N/A N/A

' Replaced & recalibrated ersture Switch switch.

A0 2-1601-60 Preventive WR #12931 N/A N/A Changed out versa valves, connected limit switch, repaired seals.

Ccm Isolation Preventive WR #13078 N/A N/A Replaced Asco valve.

Valve llPCI Ilotwell Preventive WR #13151 N/A N/A Cleaned & freed hung-up Density Pump brush on' motor.

A LPCI Injectio n Preventive WR #12161 N/A N/A Performed breaker in-Pump Breaker spection.

t 480V Switch ear Preventive WR #12166 N/A N/A Added seismic support &

h Bus 28 & 29 reinforcement welds.

480V Switchgear Preventive WR fl2166(S Lave)

N/A N/A Welded supports & rein-Bus 28 forcements.

480V Switchgear Preventive WR fl2166(S. ave)

N/A N/A Welded supports & rein-Bus 29 forcements.

l

i

~

I DRESDEN UNIT 2 f'

SAFETY RELATED MAINTENANCE-MAY,.1981 j;

1 i

NATURE OF.

LER OR OUTAGE MALFUNCTION-l EQUIPHENT.

MAlllTENANCE HUMBER CAUSE

. RESULT' CORRECTIVE ACTION

~

Bus 25, 26, 27 Preventive WR #12828 N/A.

N/A Jumpered for ECCS test.

1 lHCC 29-5/29-6 Preventive wR #12874 N/A N/A Replaced blown fuse in jHsinFeed trip circuit.

I,.

!Rx Bldg. Vent Preventive WR #12873 N/A N/A Replaced solenoid valve.

Inlet Isolation

{Volve

~

lSRM21 Preventive WR #8163 N/A v/A-Spliced 15V cable, r

.; IRM 11 Preventive WR #12250 N/A N/A.

Replaced extension cable l

& connector.

jIRM 12 Preventive WR #12251 N/A N/A.

, Replaced damaged. detector 4

lSRM 21 Preventive WR #12253 N/A 1/A -

Replaced extension. cable

{

& connector.

lIRM16 Preventive WR #12252 N/A N/A.

Replaced extension cable

& connector.

SRM 24 Preventive WR #12254 N/A N/A.

Replaced extension cable l,

& connector.

+

]IRM 18 Preventive WR #12255 N/A

.N/A.

Re;. aced extension' cable

& connector.

4

! Terget Rock Preventive WR #11500 N/A N/A Repaired steam cut on

Flange groove of flange, t

l1601-56 Preventive WR #11366 N/A N/A Rebuilt versa valve &

1 air line.

1 lIRM17 Preventive WR #11913 N/A N/A Replaced extension cable

& connector.

jHandVentValvel Preventive WR #11365 N/A N/A Replaced hard & brittle i

i

l DRESDEN. UNIT 12/3 SAFETY RELATED.HAINTENANCE-MAY,1981 4

l l

HAlllTENANCE NUMUER CAUSE

. RESULT CORRECTl'JE ACTION NATURE OF LER'OR OUTAGE HAL FUNCTION-i EQUIPHENT.

lDiecal Genera-Preventive WR #11282 N/A.

N/A Performed' annual & bi-

{ tor ennial inspections.

i pp:re Electro-Preventive WR #11476

.N/A N/A Inspected, repaired, re-jmatic built.

lSpireElectro-Preventive WR #12361 N/A

'N/A Standardized flange-to-imatic flange dimension.on leak-off lines.

!Rx Bldg. Crane Preventive WR #12776 N/A N/A Replaced BF relay.

t

!DieselGenera-Preventive WR #12879 N/A N/A Plugged 8 tubes in heat j tor exchanger.

j

~

,APRM Flow Bias Preventive WR #11654 -

N/A-N/A Ran tests on all 6 chan-Signal nels.- tested ok.

I i

4

Stack Cas Mon-Preventive WR #12542 N/A, N/A Replaced CZ on integrator litoril unit'for meter & recordgr.

lStctionBat-Preventive WR #12951 N/A N/A Perform battery inspection jteries 4

!Electromatic Preventive WR #13125 N/A N/A Reinforced welds - pilot t.

I Relief Valves main valve body on B, C, 3, & E valves.

Electromatic Preventive WR #13177 N/A N/A delded support turnbuckles aSpsrea lSpareElectro-Preventive WR #13011 N/A N/A Jut pilot & overseat drain :

  1. matic mipples, attached unions.

t 9

i i

j' i

l l

1 J

DRESDENJUNIT 3-SAFETY RELATED HAINTENANCE.MAY,1981 -

+

l NATURE OF LER OR OUTAGE MALFUNCTION-EQUlPHENT,

HAlllTENANi.E NUMBER CAUSE RESULT CORRECTIVE ACTION

'3B SBLC Pump Preventive WK #12460 N/A.

N/A Replaced pump & adjusted.

l Refuel Platform Preventive WR #11320 N/A N/A Replaced coil on main' i

winch motor brake.

I D Tip Ball Preventive WR #9427

,N/A N/A Adjusted spring tension

? Valve on.open position indica-l tion switch.

Rx Bldg. Inter-Corrective WR 412736 Bare Wire Allowed'125V DC Taped wire.

  • lock Door e

to Ground

! D Tip Ball Preventive WR #12799 N/A N/A Adjusted spring tension-l Valva L

on limit switch.

i 1

!,.CRD 58-27(R-7)

Preventive WR #12541 N/A N/A Adjusted scram inlet valva' sten.down 1 turn.

lAccum. Alarm Preve.ntive WR #12534 N/A, N/A Replaced pressure switch, j for 54-23 N/A N/A Checked alarm & trip MSL Rad Monitoi Pr'eventive WR #12596 I Satpoints points - found ok.

1 ji 24/48 Battery Preventive WR #11796 N/A N/A Checked specific gravity j

"B" Bottom readings - found ok.

I l

l Refuel Grapple Preventive WR #12546 N/A N/A Jumpered to replace track i

switches.

h l Refuel Grapple

. Preventive WR #12780 N/A N/A Aligned & replaced drive

{

motor coupling.

{ CrinnellHydrau - Preventive WR #13436 N/A N/A-Replaced snubbers 1 & 2.

t i lic Snubbers i

Rafusi Plat form Preventive WR #13127 N/A N/A Repaired latch light.

4

n i

r N

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T n

C a

A t

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n I

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C b

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/

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F 8

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/

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N A

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A E

M R

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I I;1iiii lI i

i1 i, l!!

,I:

~

SUMMARY

OFOPERATINGEXPERIENCE UNIT ONE MAY, 1981 5-1 to 5-31 Unit One was shutdown for the entire month, awaiting license approval for the. chemical cleaning. Major work' scheduled to be completed following chemical cleaning is as follows: HPCI insta11'ation for ECCS upgrading, equip-ment upgrade to IEEE 279, major in-service inspection, and refuel.

i

(

l l

i i

t

.-,..~4

< - - - - - - -,, - - - - ~

-r

>. ~, - ~.. - - - - - -

..v~-

,--~vv----

e

SUMMARY

OF OPERATING EXPERIENCE

. UNIT TWO MAY, 1981 1

5-1 to 5-10 Unit Tuo was shutdown for refueling until 5-10-81, at 0014 hours1.62037e-4 days <br />0.00389 hours <br />2.314815e-5 weeks <br />5.327e-6 months <br />; at which time the reactor was made critical. Criticality checks were accomplished several times to '

assure correct operation; and final criti-cality was 0800 hours0.00926 days <br />0.222 hours <br />0.00132 weeks <br />3.044e-4 months <br /> of the 10th, i.

5-11 to 5-12

'The Unit was placed in service at 1540 hours0.0178 days <br />0.428 hours <br />0.00255 weeks <br />5.8597e-4 months <br /> of the lith and operated until 0842 hours0.00975 days <br />0.234 hours <br />0.00139 weeks <br />3.20381e-4 months <br /> of the 12th when a generator ground condition developed and the Unit was manually tripped off line (the reactor remained critical).

5-12 to 5-31 The Unit was placed in service at 2026 hours0.0234 days <br />0.563 hours <br />0.00335 weeks <br />7.70893e-4 months <br /> of p

the 12t1 and operated continuously during the remainder of the month, reaching a power level i

L of 747 MRe, with a capacity factor of 36.45%

f and an availability of 64.06%.

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SUMMARY

OF OPERATING EXPERIENCE UNIT THREE MAY, 1981 5-1 to 5-31

~Ut.it Three entered the month operating at a pow r level.of 829 MWe and operated continuously during the entire month, with a capacity factor of 92.55% and an avail' ability of~100%.

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