ML20137U401

Monthly Operating Repts for Nov 1985

ML20137U401
Person / Time
Site:	Browns Ferry
Issue date:	11/30/1985
From:	Cosby T, Thom T TENNESSEE VALLEY AUTHORITY
To:
References
NUDOCS 8602190164
Download: ML20137U401 (26)

Text

e J-TENNESSEE VALLEY AUTHORITY POWER & ENGINEERING (NUCLEAR)

BROWNS FERRY NUCLEAR PLANT MONTHLY OPERATING REPORT TO NRC NOVEMBER 1, 1985 - NOVEMBER 30, 1985 DOCKET NUMBEES 50-259, 50-260, AND 50-296 LICENSE NUMBERS DPR-33, DPR-52, AND DPR-68 Submitted by:

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4. M p Acting Plant Marfager g31C k--

8602190164 851130

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PDR ADOCK 05000259 l,

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e TABLE OF CONTENTS

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Operations Summary............................ 1 Refueling Information....

3 1

Significant Operational Events......................

5 Average Daily Unit Power Level.....

8 Operating Data Reports.........................

11 Unit Shutdowns and Power Reductions...................

14 Plant Maintenance............................

17 0058B

9-1 Operations Susunary NOVEMBER 1985 The following summary describes the significant operation activities during the reporting period. In support of this summary, a chronological log of

'significant events is included in this report.

There were five reportable occurrences and three revisions to previous occurrences reported to FRC during the month of November.

Unit 1 l

The unit was in cold shutdown the entire month for the unit's end-of-cycle 6 refueling outage.

Unit 2 The unit was in cold shutdown the entire month for the unit's and-of-cycle 5 refueling outage.

Unit 3 k

The unit was in cold shutdown the entire month on an administrative hold to resolve various TVA and NRC concerns.

i This was prepared principally by B. L. Porter.

4 k

4 0058B i

i-l l

e 2

Operations Summary (Continued)

NOVEMBER 1985 Fatigue Usage Evaluation The cumulative usage factors for the reactor vessel are as follows:

Location Usage Factor Unit 1 Unit 2 Unit 3 Shell at water line 0.00620 0.00492 0.00430 Feedwater nozzle 0.29782 0.21319 0.16133 Closure attids 0.24204 0.17629 0.14326 NOTE: This accumulated monthly information satisfies Technical Specification Section 6.6.A.17.B(3) reporting requirements.

Common System Approximately 1.02E+06 gallons of waste liquids were discharged containing approximately 3.49E-02 curies of activities t

0058B

3 Refueling Information NOVEMBER 1985 Unit 1 Unit 1 was in shutdown for its sixth refueling on June 1, 1985 with a scheduled restart date of March 1989. This refueling will involve loading 8x8R (retrofit) fuel assemblies into the core, replacing recirculation piping, work on "A" and "B" low-pressure turbine, upgrade hangers and anchors, and environmentally qualify instrumentation. The unit was shut down on March 19, 1985, and remained in cold shutdown until June 1, 1985, because of unfinished modifications to meet environmental concerns.

There are 0 assemblies in the reactor vessel. The spent fuel storage pool presently contains 764 EOC-6 assemblies. 252 EOC-5 assemblies, 260 EOC-4 assemblies, 232 EOC-3 assemblies, 156 EOC-2 assemblies, and 168 EOC-1 assemblies. The present fuel pool capacity is 3,471 locations.

Unit 2 Unit 2 was shut down for its fifth refueling outage on September 15, 1934, with a scheduled restart date of June 1, 1986. This r~efueling outage will involve loading additional 8x8R (retrofit) assemblies into the core, finishing torus modification, turbine inspection, piping inspection, TMI-2 modifications; postaccident sampling facility tie-ins, core spray change-out, and feedwater sparger inspection.

0058B

Refuelina Information NOVEMBER 1985 There are no assemblies in the reactor vessel. At month end, there were 273 new assemblies, 764 EOC-5 assemblies 248 EOC-4 assemblies, 352 EOC-3 assemblies, 156 EOC-2 assemblies, and 132 EOC-1 assemblies in the spent fuel storage pool. The present available capacity of the spent fuel pool is 77 locations. All old racks have been removed from the pool and new HDRs are being installed.

Unit 3 Unit 3 is scheduled for its sixth refueling outage approximately November 30, 1985, with a scheduled restart date of March 1987. This refueling involves loading 8x8R (retrofit) assemblies into the core, and complete reinspection of stainless steel piping. The unit was shutdown on March 9, 1985, and will remain in cold shutdown until November 30, 1985, on an administrative hold to resolve various TVA and NRC concerns.

There are 764 assemblies presently in the reactor vessel.

there are 248 EOC-5 assemblies, 280 EOC-4 assemblies, 124 EOC-3 assemblies, 144 EOC-2

~

assemblies, and 208 EOC-1 assemblies in the spent fuel storage pool. The present available capacity of the spent fuel pool is 914 locations.

0058B

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5 Significant Operational Events NOVEMBER 1985 Unit 1 11/01 0001 End-of-cycle 6 Refuel outage continues 11/30 2400 End-of-cycle 6 refuel outage continues 1

3 00588 4

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Significant Operational Rvents NOVEMBER 1985 Unit 2 11/01 0001 End-of-cycle 5 Refuel and modifications outage continues 11/30 2400 End-of-cycle 5 Refuel and modifications outage continues I

j 4

0058B 4

7 Significant Operational Events NOVEMBER 1985 Unit 3 11/01 0001 The unit has been placed on administrativo hold until various TVA and NRC concerns are resolved.

11/30 2400 The unit has been placed on administrative hold until various TVA and NRC concerns are resolved.

J 0058B

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8 AVERAGE DAILY UNIT l'0VER LEVEL DOCKETNO. 50-259 UNIT Browns Ferry One DATE 12-1-85 CO'.! PLT.TED F3y T. Thom 205/729h509 TELE."fiONE MONT11 November DAY AVERAGE DAILY F0WER LEVEL DAY AVER AGE DA!LY FOWER LEVEL ggu.yer; e

"' ## I

-8

-7 3

17

-8 1

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g s;

=_.

'z

-9

-8 19 4

-7 20

-8 S

-8

-8 21

~~

-8

-8 6

22

-8

-8 33

-8

-7 8

28

-8 s

25

-7

~

-7

-8

!0

-7

~7 II 27 12

-8

-7 I4 E-

-8

,7 g3 29

~0

-8 14

.i0 I$

-8

?!

16

-8 INSTR!!CTIONS On thieformat.hst the at:r:'!: d di un.t sonr Lu.! :,i negg for each day i.i :1.e u.pn,ing n. n rh. Cinapt.re to 6

!!.e r.eares: who:e.ni ;iwaii,

AVER ACE DAl Y UNIT PohER LEVEL DGrKET NO. _50-260 UNIT. Browns Ferry Two

- 1-85 DATE COMFLETED BY - T. Th om (205) 729"-2509 TELEPHONE MONTH November DAY AVER AGE D. AIL

'ER LEVEL DAY AVER AGE D&!!.

OWER LEVEL I

-5 17

-6 2

-5 IS

-6

-3

-5 to

~6

-5 4

20

-6 5

-4 2!

-6

-5 6

22

-6

-5 7

23

~6 3

~

-7 3,9

~

~5 y

n

~7

~

-7 10 26

-6 27

-8

-6 12

-6 33 ee.

13

-6

2.,

-7

~

14 33

-7

~0' 15

't 16

-6 INSTRUCT.ONS Gn thojarrnst.! st the :nerr.c d4::, u:nt power tesel in r,1we.Ne? for each day in tire sep,,ntig mont!;. Compute t l

fi e sa;;2es: wl.e:e t.:egiwa t.

r 19i771 i

\\

10 AVER.tGE DAILY UNI T POWEft LEVEL

!!OCKET NO.

50-296 UNIT Browns Ferry Three 12-1-85 DATE C0\\!PLETED BY T. Thom TELET!!ONE 205/729-2509 November MONiil DAY AVER AGE DAILY F0WER LEVEL DAY AVER AGE dally POWER LEVEi.

IMWe NetI ggwe.ge,,

l

-9

-8 g7 2

-9 is

-9 3

-9 gn

-9 4

-9

-9 20

-9

-8 5

3

~'

6 22

-9

-9 7

23

-8 8

-9 24

_9 9

-9 25

-9

-10

-8

!0 26 il

~

-9 37 12

-9 23

-9

-9 13 3 14

-9

,3 o

_9 l

15

-9 3,

i

-9

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INSTRUCTIONS On th.< format.hu the average JA unit ;.i,.sc, Ic5d in MWe %t for each day in the ee; uiting month. Ci mpste tu i

thC neJrest whole mepwait.

I (9/77 )

3

11 OPERATING DA'i A REPORT DOCKET NO.

50-259 DATE 12-1-85 COMPLETED BY T. Thorn

' TELEPl!ONE 205/7?4--2509 OPERATING STATUS

l. Unit Name:

Browns Ferry One Notes November 1985

2. Reporting Period:

3. Licensed Thennal Power ('.lWt):

3293 1152

4. Naraep! ate Rating (Gross 31We):

1065

5. Daign Electrial Rating (Net 31We):

1098.4

6. Sleximum Dependable Capacity (Gross MWe):

7. Slesimum Dependable Capacity (Net SIWE):

1065

8. If Chan.ces Occur in Capacity Ratings (items Number 3 Through 7) Since Last Repoit. G*ie Reasons:

N/A

9. Power Letel To Which Restricted.lf Any (Net SlWe):

N/A

10. Reasons For Restrictions.If Any:

N/A This Month Yr. to-Due Cumularis e 720 8,016 99,416 I1. Hours In Reporting Period

12. Number Ofifours Reactor Was Critical 0

1,647.78 59,521.38

13. Reactor' Reserve Shutdown liours 0

512.22 6,997.44

14. Hours Generator On.Line 1,626.67 58,26'7.26 u

15. Unit Resene Shutdown !!our, 0

0 0

0 4,950,821 168,066,787

16. Gross Thermal Energy Generated (MWil)

17. Gross Electrical Energy Generated lMWil) 0 1.652.650 5 5. 39 8 J,3Q._.

18. Net Electrical Energy Generated (*lWH)

-5,596 1.546.769

__53.760,590_

19. Unit Senice Factor 0

20.3 58.6 0

20.3 58.6

20. Unit Asa ! ability Factor 0

18.1 50.8

21. Unit Capacity Factor IUsing MDC Net) 0 18.1 50.8

22. Unit Cap.icity Factor llhing DEP, Net) 0 55.1 23.6

23. Unit Forced Outage Rc?-

24. Shutdowns Scheduled Oser Nest 6.'.lonths (Type. Date,and Duration of Fach t:

25. If Shut Down At End Of Report Period.E>timated Date of Startup:

9/14/86

26. Units in Test Status iPrior to Commercial Operationi:

Forceast Achiesed INITIA L ClllTICA LITY INITIAL ELECTRICITY COM'.lERCIA L OPER ATION (9/77)

12 OPERATING DATA REPORT DOCKET NO.

50-260 DATE 12-1-85 COSIPLETED BY T TELEPl!ONE 205/729-2509 OPERATING STA"IUS Browns Ferry 2 Notes

1. Unit Name:

Novembstr 1985

2. Reporting Period:

3293

3. Licensed Thermal Power (31%t):

1152 4 Nameplate Rating (Gross 31We):

1065 5 Design Electrical Rating (Net MWe):

6. Maximum Dependable Capacity (Gross MWe): 1098.4 1065

7. Slaximum Dependable Capacity (Net MWe):

b. If Changes Occur in Capacity R-tings (Items Number 3 TI rough 7) Since La>t Repo-t, Give Iteast.ns:

N/A

9. Power Lesel To Which Restricted if Any(Net MWe):

N/A

10. Reasons For Restrictions,if Any:

N/A This Month Yr.40 Date Lunudalive 720 8,016 94,303

11. Ifours in Reporting Period 0

0 55,860.03

12. Number OfIlours Reactor Was Critical

13. Reactor Resene Shutdown llours 0

0

_14,200.44

14. Ilours Generator On.Line 0

0 0

54,338.36

15. Unit Resene Shutdown flour, 0

0

16. Groa Thermal Energy Generated (MWil) 0 0

153,245,167__

0 0

50,771,798

17. Gross Elec:rical Energy Generated IMWil)

18. Net Electrica! Energy Generated IMWH)

-4,240

_-32,150

'49,270,823 0

0 57.6

19. Unit Senice Factor

20. Unit Asailability Faetor 0

0 57.6 0

0 49.1

21. Unit Capacity Factor IUsing MDC Net) 0 0

49.1

22. L' nit Capacity FactorIUsin;t DER Net) 0 0

23.0

23. Unit iorced Outage Rate

24. Shutdowns Scheduled Oser Nest 6 Months IType. Date, and Duration of Lach):

l

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

June 1986

26. Units in Test Status (Prior to Commercial Operation):

Forecast Achies ed INITIA L CRi flCA LITY INITIAL ELECTRICITY CO\\l\\lERCIAL OPER AT;ON 19/77)

13 OPERATING DATA REPORT DOCKET NO.

50-296 DATE 17-1-Rs COMPLETED 11Y T. Thom TELEP!f0NE 205/729-2509 OPERATING STATUS

1. Unit Name:

Rrnt -n a T'a r rv 'l

2. Reporting Period:

November 1985 3293

3. Licensed Thermal Power (Mht):

1152

4. Nameplate Rating (Gross MWe):

1065

5. Design Electric::1 Rating (Net MWe):

6. Masimum Dependable Capacity (Gross MWe):

1098.4

7. Ms.simum Dependable Capacity (Net MWe):

1065

8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report.Giie Reasons:

N/A

9. Power Lesel To which Restricted,if Any (Net MWe):

N/A

10. Reasons for Restrictions. If Any:

N/A This Month Yr..to Date Caralatise

11. Ilours in Reporting Period 720 8,016 76,728

12. Number Of Hours Reactor Was Critical 0

1,517.65 45,306.08

13. Reactor Resente Shutdown flours 0

508.05 5,149.55

14. Hours Generator On-Line 0

1,496.96 44,193.76

15. Unit Resene Shutdown llours 0

0 0

16. Gross Thermal Energy Generated (MWill 0

4,649,840 131,868,267 17 Gron Electrie ! Energy Generated (MWil) 0 1,572,770 43,473,760

18. Net Electrical Energy Generated (MWH)

-6.333 1.472,615 42,138,376

19. Unit Senice Factor 0

18.7 57.6

20. Unit Asailability Factor 0

18.7 57.6

~

~~

0 17.2 51.6

21. Unit Capacity Factor (Using MDC Net)

22. Unit Capacity Factor (U>ing DER Net) 0 17.2

,51.6

23. Unit Forced Outage Rate 100 81.3 26.4

24. ShutJonns S:heduled Oier Nest 6 Months (Type. Date,and Duration of Each1:

25. If Shut Down At End Of Iteport Period. Estimated Date of Startup.

March 1987

26. Units in Test Status iPrior o Commercial Operation):

Foreca,t AcInesed INITIA L CRITICALITY INIIIA L ELECTRICITY CO\\l'.lERCI \\ L OPER A TION lol?? )

UNil SiiU~IDOWNS AND POWER 1:LDirilGNS DOCKET NO. 50-259 IJN1l' N A M E One

- DAT* 12-1-85 lu. Pott'l MO!all __Hovember COMPT.F.TEls ' Y T-Thnm

.IELEPIIONE ?nsf 790 9;no E

4 s. h;;

IAeriwe g3, sfa.

C.mse & Correceive v

E s

E s

No.

Daic i

Tj E i

.i s 5 Event

7 E-?

Action so j~

3 ;p, =

Report e EU EU Presens itecunence t.

i 315 11/1/85 S

720 C

2 (Cont)

End of Cycle 5 Refuel Outage Continu.a U

+

L i

2 3

4 i: 12:ce)

Reason:

Method:

1.unb:1 G. Instn.ciions

5. Sslahtest UI'.gui. ment Failure t E o!amt I-Manual 1.

P.epai. sun ut D ia l

It Maiate:tu.cc or 1ot

2. Man ::.! & um.

1.nt> > S!atis l'or 1.ieen:.ee C Ret'uc'mg 3-A:1:am. tic Scram.

I'.sen; Rep.ni ti l'It) File iNL rig D Rep.!aiar R. tuco..

4 O:hcr (i~~.plaud tilt i) 110perater 'In..mz.' ! :.

1.. :: :ut: r.

F.Adma:n ti.iti.e 5

d i)pe.JlfL:1.d l l101 l k. pl at.il

\\'g?ghit] $3mf$ignge l'8 7 7.' l ll-1)*h *! (I \\pl.s'!: $

i

.7 UNil SI:ll'II* OWNS AND POWER REDUCTIONS 1)O(.KET NO.

50-260 UNil N AhtE Browns Ferry Two DALE 17-1-R5 Ift N

REPoiti MONIII November i.N 205/

-2509 3E 3

kY' l.icenwe y r, h4 Cause & Correcti.;

Na.

DJte i,

5?

4

.E s 5 Event fd Attson to 3

5@y5 Report r 8.4 5'

Prevent itecurrente 2

v i

305 11/1/85 S

720 C

4 EOC-5 Refuel Outage (cont)

(Controlled Shutdown 9/15/84) ta I

2 3

4 I~. ! >rced Reawn.

Methu,D i.thihii G - In:ttuctio.rs 5~ Schel.D.!

.i 1:qmpox ri E:.i'ar.-(l.s: hial

! M.::'ual fi r Pier:n eien of Dat:

li.P.Linten u:ce :-r Tu 24Lnu11 Scrarn.

Entr. Sheets rur Liernsee C-Refu:line M ut.a.a it:e he:ca.

1 tens it part it.l R1l'ile iNLiRI G-D It ;;ubt.: 3 lie >ir a t rua 4 O G,a il. sit nin fil e.11 l 'Dpef dt *f 'I f *4Lritei[' k IJ' Cf 4 / $ *.3M,1:t:ill *!4 1 -&Juantu:a:P..

5 G Opci.4::.nul Ilsi. : 1i wir n liinh:1 I. Sanw S.iusc.'

("! N )

il Gu.e 4 F pt.cn t

UNIT SilUTDOhNS AND POWER ItEDUCTIONS DOCKET NO.

50-296 UNIT NAME Browns Ferry Three DATE 12-1-A5 idFOR I.*.!ON f11 Novemg-COMPLETED BY T. Thom TELEPHONE 205/729-2509 E

E 5?

3 h $E Licensec

{ t.,

Cause & Correctisc N..

!Lte E9

{

rE$

I's eni s?

F ~2 Action to S

j$

335 Repot

.E C

$C Prevent Recurrence e

e v

6 156 11/1/85 F

720 F

2 The unit remains on administrative (Cont) hold until various TVA and NRC concerns are resolved.

t

+

m I

l i

I I

1 4

1 --

1.* ice 1 Reason:

.'.tcil.iw!:

lixhibit G. Instructii.in

\\ % he.!nteI

\\ ! quipment Failur.-(I.. plan.)

! 41;nual for Prepaution on Data Itataintem.ise or Test

.%! ann il Seraia.

Futsy Sheets for 1.icensee C-ltelneling 1-Aut..nutic S,r.un.

I:sent ReperI (l.I'R) Iite iNilRI G.

D llegulatin) Itestriction 4 Of hvi (l.xplaml 01 til )

I.Operitor lutninc k Iitense I wininati.in

!~Asiniinistrair.e 5

G.Oper.ition il ! isos ti spl etal 1:shibit I Same Sinuse t'8l f 7)

II Othes (1 splain!,

6 9

}$b[.MSIL30 li!,0MNS FERRY WUCI. EAR PLANT UNIT 0

CSSC EQUIPMENT ELECTRICAL ?!AINTENANCE SUM >lARY

^EI "

9/29/82 For the !!onth of Novembei 19 85 Effect on Safe Action Taken Nature of Operation of Cause.of Results of.

To Preclude Date System Component Maintenance The Reactor

!!al func t i in

!!al f unc t ion Recurrence 1985 4/18 R11RSW D RilRSW Replace motor None Bad bearings in Strainer not rotating Replaced motor strainer motor bearings strainer motor properly bearing MR 182481 10/30 tilgh pres-BKR-26-2 Performing None Worn parts on Breaker not operating Replaced primary sure fire fire pump

'B' E11I 7 breaker properly disconnect fingers protection breaker on breaker stabs MR 569756 11/1 Iligh pres-PMP-26-2 Troubleshoot None Bad motor heaters !!otor shut of f Replaced motor sure fire fire pump

'B' motor heaters heaters r.

protection 11R 569937 -

t 11/5 4-kV shut-C-phase Performing None Broken suspension Ammcter not indicat-Replaced ammeter down bds ammeter on SI 4.A.4 on ammeter ing

& busses ACB-1614 101 556047 11/17 Standby COV-82-D Performing None Out of adjustment DG idle speed did not Adjust idle speed diesel ID DG governor SI 4.9.A.I.d meet criteria. Speed to 450 RPMs.

generator was 421 RPMs; should have been 450 RPMs 101 569710 11/19 4-kV shut-4-kV shutdown Per fo rning None Wire swapped on Could not transfer Swapped wires on doun board board A trans-SI 4.9 A.2.c transfer switch 4-kV shutdown board transfer switch f

& busses fer suitch battery dis-A 250VDC to alternate y

charga test feed 15; 590139 l 11/25 Diesel 125 BATB-254-D Performing None improper voltage Overall voltage did Adjusted battery VDC system diesel genera-ndjustment not teet criteria of chargers A & B

+

1 3

tor D batterie.

SI 4.9.A.2.a SI float & equalize

' i voltages.

MR 569973

_ _ =

~

LLGt.TS FE.:RY !;UCLLAR Pl.A'il UI61T I

BF EMSIL 30

^PE "

CSSC EQlflPMENT ELECTRICAL. !!AINTENANCE SUt2tARY 9/29/82 For the ?!onth of November 19 85 Effect on Safe Action Taken Nature of Operation of Cause.of Results of To Preclude

(

Da t e-Syst cci Cumponent M11ntenance The Reactor Halfunction Halfunction Recurrence 1985 11/17 Diesel RPI! meter on Troubleshoot None Unknown Meter not indicating Adjusted & cleaned generator ID DG RPM meter properly meter MR 583356 II I-b O

4

=

5-i

?

w

{

LR0 LGS FERRY UUCI. EAR PLANT UNIT 2

'h1 30 CSSC EQUIP: LENT ELECTRICAL ttAINTENANCE SUl! MARY

^EI 9/29/82 For the !!onth of November 19 85 Effect on Safe Action Taken Nature of Operation of Cause.of Results of To Preclude Date System Component Fla intenance The Reactor Malfunction t!alfunction Recurrence 1985 11/9 Reactor FCO-64-43 Troubleshoot None Limit switch out Improper indication Adjusted limit building Rx zone exhaust limit switch of adjustment in open and. closed switch ventilation duct outboard positions isolation htR 588245 damper

+

0 I

i I

4 i

I a

5 e

, 1 i

I

N'#

LKUU:!S FERRY GUCLEAR PLA!!T UJIT 3

BF E!!SIL 30

^IP "

CSSC EQUIPMENT ELECTRICAL HATNTENANCE SU1CIARY 9/29/82 For the }!anth of November 19 85

[

Effect on Safe Action laken lI I

Nature of Operation of Cause.of Results of To Preclude

_I9 t e S uteca Component Maintenance The Reactor Malfunction

!!alfunction Recurrence

> lt ' e :S~

Diesel RLY-82-C/SFBI DG redundant None Defective circuit Timing was too slow Replaced relay l

i generator DG 3C start start test in time delay j'

failure backup relay SFBI MR 641714 l

relay SFBI I_

8/12 Fire Fire protectiot Replace amp None Amp meter broken Meter did not work; Replaced meter protection JB 5662 meter on about to fall from l1 cabinet cabinet of cabinet MR 572401 JB 5662

! n.

n O

Y i

3 5

'i i

I l

I I

l,

o CSSC EQUIPFIENT F1ECIIANICAL lialtnEkaNLi sdlettdY For the Month of November 19 85 EFFECT ON SAFE ACTION TAKEN IRTE SYSTDI COliPONENT NATURE OF OPERATION OF CAUSE OF RESULTS OF TO PRECLUDE 11AINTENANCE THE REACTOR MALFUNCTION MALFUNCTION RECURRENCE 11/15 23 D1 RIIRSW P u m i' Replace None Age 6 Use N/A Replaced Strainer Strainer Basket.

l Basket 11/15 23 02 EllRSW Pumi.

Replace None Age 6 Use N/A Replaced Strainer Strainer Basket.

Basket t

5 O

e

cssC EQUIPtIENT MECHANICAL MAINTENANCE SUF9fARY For the Month of N ovembe r19 85 EFFECT ON SAFE ACTION TAKEN DATE SYSTEM COMPONENT NATURE OF OPERATION OF CAUSE OF RESULTS OF TO PRECLUDE.

MAINTENANCE THE REACTOR MALFUNCTION MALFUNCTION RECURRENCE 11/12 64 lamper 64-12A Repair Dampe r None Unknown N/A Adjusted regulator Operator to insure propgr opening & closing of dampers.

11/11 64 IB RX Zone Check damper None Possible inside N/A Damper yoke was Exhaust Fan and repair of fan housing adjusted. No adjus(

Damper causing damper ment left on threa; not to close.

11/1 74 FCV-1-74-58 Hand wheel None Age & Use N/A Tightened Declutch will not lever, replaced kej engage.

in handle & re p l Ac(

gasket on handwheej 11/11 64 Exhaust fan Dampers do,

none Operator not N/A Checked damper and.

FCO-64-12A not close closing fully linkage - dampers outlet dampe rproperly -

causing A fan are free.

B fan runs to back peddle g

backward when N

A fan is in service.

O I

i O

u-CSSC EQUIPMENT

)ECHANICAL HAluid1SNCE

SUMMARY

For the Month of Novembe r 19 85 EFFECT ON SAFE ACTION TAKEN DATE SYSTEM COMPONENT NATURE OF OPERATION OF CAUSE OF RESULTS OF 10 PRECLUDE MAINTENANCE Tile REACTOR MALFUNCTION MALFUNCTION RECURRENCE 11/1 71 2-FCV-71-34 Check oper.

Routine or Operator was Limitorque worm gear preventative disassembled ang Operator for wear maintenance checked for wear.

No wear found.

5teassembled.

11/1 74 2-FCV-74-58 Perform QMDS Age & Use Machinist inspected maintenance gear. Filters cleaned and lubri-cated stem.

11/l:

75 Corespray Inspect Age & Use Tightened tubes and testable actuator for connections per check valve leakage.

BF 6.1.

11/12 23 RilR HCll Tube Valve l e a k s-Age & Use Replaced gask t &

vent "A"

through laped valve seat.

I

BROWNS FERRY IJUCLEAR FLANT UNIT 1

CSSC EQUIPMFNT

!!ECllANICAL liAI!!TE!!ANCE

SUMMARY

For the Month of N ov emb e r19 85 EFFECT ON SAFE ACTION TAKEN DATE SYSTEM C0!!PONENT NATURE OF OPERATION OF CAUSE OF RESULTS OF TO PRECLUDE MAINTENANCE TIIE REACTOR ffALFUNCTION 11ALFUNCTION RECURRENCE 268 3EN LPCI Replace bearing Material failure New bearing on flywheel, and flywheel installed.

11/14 63 SLC Accumula-SLC accumulator Age & Use Charged "B"

tor "B"

"B" was found accumulator 3

to be 800 PSIC to 980 PSIG 11/19 86

1. 2 air comp.

Replace head Age & Use Replaced ben, on 3C D/G gasket on llP gaskets on side.

air comp re s so:

11/1 70 Valve Investigate Age L Use Replaced leakage of packing.

water around valve.

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