Text

Forwards Response to 800507 Request Re Outage Dates & Length of Outages for All ECCS for 750101-800901
	ML20062K957
Person / Time
Site:	Peach Bottom
Issue date:	01/05/1981
From:	Daltroff S; PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Eisenhut D; Office of Nuclear Reactor Regulation
References
	NUDOCS 8101090003
	Download: ML20062K957 (26)
	v • d • e

THIS DOCUMENT CONTAINS POOR QUAL.lTY PAGES 1

.s ;

PHILADELPHIA ELECTRIC COMPANY 23O1 M ARKET STREET A

P.O. BOX 8699 1881 1981 PHILADELPHi A. PA.19101 SHIELDS L. D ALTROF8P vica passiosm?

ELECTRIC P8tocuCTION Januarr 3,

1"ll o c ': e t

os.

50-277 n

~,1-27'

'r.

'arrell r'. risen'iitt,.irector livision of

f. i c e n s i n,

"1

'u clea r ie ulatorv Co :nission

'aibinnton, DC 20353 n Outase of -ner onc'.

o r e

$ '; ', J ~. C ~ -

". e a o r t n Coolin> trstens ef.:

1)

Letter dated "a"

7, 1 % 0, 1.

G.

"laenhut,

'; C, to !s i l Oneratinc

'eactor Licenseen

' oar

'r.

Eisenhut:

The :uclear '.eculatory Connission renuested of each Licensee in iten I I. '. 3.17 of reference 1,

a ra, ort datailin-outa~e dates a n.!

lenrth of outa;es for all Caercency Core Coo lin -

Svstens ( T: C C S ) #cr the last five years of omaration.

Additionally, t5e cause of the outaTes ra s recuesten.

The infornation requested is presented in the attached table for t '., e,eriod fron January 1,

l'373 to Sentember 1,

l'*5.

A >!d i t i o na l infornation, if neefed, may be obtaine ! Jy referrin-to the License Event

'l e n o r t ( l ~ 't ) identified in the table.

~CC; modifications resultina fro, in:lenentation of the II.I.3 re uirenents are eo'ected to increase syste, a v a i l a ', i l i t v.

"everal noJifications have been oreviousiv i colene nt e ! at Peac5 lotton to increase the a va ila bili ty of the ECCS involvin.

in,rovenents to t 'T e

'3 ? I and "CIr control sv3:e:3, diesa!

";"' heat exchan,er inte:rity, and a

'enerator :overnor control, l

nov otor onerator for the C

injection valve to elininate valve

@\\

ste, da.:a e.

S\\

\\

71090003(

f

"r.

7.

C.

?. i.4 e n h u t, Director

'tme 2 1

S h ott id voit have any q tt e s t i o n s r e t a r d i n :'

ittis catter, i

niesse do not besitate to contact it s.

i

'.* e r v t rti l" "ots r s,

1

+

i t t a c !10c n t 4

l i

I.

F J

t 4

J a

4 i

1 4

=

PEACli 3JiT C?. ATOMIC POUhP STAT IOf.

Rei: Ort on Cutagen of 2CCS Systs.nu J snu.4r; 1,

1375 - Ce; tes at:r 1, 1960 SYSTEM I:;OFERAT LE OR FOR FCR*iAt:C3 CUTAGM OGTAGE JUEnlEE0 9311 LEE _h92 EnIslul 09E6T19h cAuss 3CIC 2

3/3/60 13 hours1.50463e-4 days 0.00361 hours 2.149471e-5 weeks 4.9465e-6 months Repair stea.T leaks RCIC 2

7/25/79 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months Repair drain pot to 7/26/79 BCIC 2

2-78-26/3L

'4/19/78 li.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Failure of Controller and/

Instrutnentation Inverter RCIC 2

2-78-'46/3L 11/17/78 3 hour3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months s Electrical Malfunction in flow controller I;CIC 2

2-77-13/3L 2/19/77 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Static Inverter Tripped without Autoincttic ROSet 1

EcIC 2

2-77/67/3L 11/12/77 6.5 days steam suptly to isolation valve 11/19/77 MO-16 at 0.i(1-position due to battery ground, consequently inboard isclation valve MO-15 was closed 3CIC 2

2-76-8/3L 2/9/76 17.5 hourE Steam sug.ly isolation valve MO-16 failed to stroke closea c0nse.3ucntly inacard isolation valve

~_

S?S't? t' I!10PEBl.utE Ch PI'RFGFl!.M.Cl CuTI.GU ots.6L 1 0 2 6 F ')

!!El'l itt_LG-Ab1Elul t uwrior.

ci.o ss

!"O-15 wa s c lo:.;e.1.

fiant.al init.iation ca abilit.y of RCIC available.

RCIC 2

2-76-71/31.

5/2/76 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months Trip throt.tle valve failea to rarct af ter trip, due to

'J rounded solenoid.

FCIC 2

9/22/76 2 days blocked for naintenance to 9 / 284/ 7 6 BCIC 2

10/5/76 39 hours4.513889e-4 days 0.0108 hours 6.448413e-5 weeks 1.48395e-5 months Turt,ine throttle would to not reset 10/6/76 SCIC 2

2-76-81/3L 12/2S/76 2 day Steaa. supply isolation to valve !?O-16 tailed to 12/30/76 respond to auto opc.n signal due to f ailed valve tor <;ue switcia.

RCIC 2

S/6/75 5 1.ours Blocked for testing RCIC 2

50-277-75-79 12/7/75 13 days Steam supply isolation valve t;3-16 f a ile 1 to close cue to tight packing.

flanual initiation capability of hCIC availi.ble.

ECIC 3

3-EO-6/3L 2/13/ f,0 11 hours1.273148e-4 days 0.00306 hours 1.818783e-5 weeks 4.1855e-6 months

.utota6t.i c f low control increrarsle due to controller

SYSTE!'

I:;0PEFA!!LE CL FERFCFMAtCE C UT; IGE GUTI.GI.

I!!PA I 3MI) 9211 ILE I.r.

g6T i'._(gl lp],6TIOy C6png j

iailute.

Mr.nual ficw control remained availut>1n.

RCIC 3

3/15/80 9.5 nours Repair teressure: seal on F.0-16 IiCIC 3

3 31/ 3 L 5/22/79 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months Initii. tion capability lost due to lightning strike (blown fuses)

RCIC 3

12/28/79 3.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months hepair valve RCIC 3

3-7 8-0 24 /3L 12/12/78 24 days Steam sup[.ly isolation to valve MO-15 failed 1/5/79 to close, due to faulty packing.

Outboard isolation valve P.O-16 closad.

Manual initiation capability of HCIC i.vailable.

fiCIC 3

3-77-27/3L 6/15/77 1 day Bot.h isolat ion to valves foun.2 6/16/77 closed, due to failure to 01.en valves after testire on 6/15/77.

Manual initiation coisaoility of liCIC was available. tidmin ir tr.itive controls have beten improved.

IICI C 3

3-77-30/3L 7/8/77 16 minutt.s Loss et power to ste.in line nigh 3-

j EYSTEt I::OFEHARLE O!:

F E R F C R :1.1.C 2 G1Tl/it:

GUTi.GE.

ICEhl350 UUll LLE EC1 UATE.Gil D tI F t.T I r, N C;.IIEM flow isolation logic due La blown fuse.

FCIC 3

3-77-31/3L 7/11/77 18 days Steam Lutply to inboard isolation 7/29/7.7 valve 150-15 failed to close due to ma1 function in notor torque switch circuit.

Outtoard isolation valve closect. I:anual initiatior, available.

iiCIC 3

3 32/.3 L 7/13/77 13 hours1.50463e-4 days 0.00361 hours 2.149471e-5 weeks 4.9465e-6 months Outer isolation valve MO-16 failed to close due to worn liriitorque operator.

SCIC 3

3-7 7 -til /1T 8/9/77 il days Outtoard isolation valve t'.0-16 inoperable due to failed lignitorc;ue owiten.

Ir.bcar(! isoldtion valve close.l.

Ili.nual initiation capability of RCIC available.

IiCIC 3

'3/12/77 1 cay F.t:Eair r:.otor o[:erator on l'O-16.

ECIC 3

3/6/77 3.8 days Ect. air eteain leak on to valve 9/10/77

- r; -.

SYS'I Eli I:!O F E FIG L E 01<

FERFCFMis!.CE CtlT;,c t; otr:/,G1; ICEhlEED Mull Lhi._I_!!2 Eh1E.(!il Dt; F l.TI ut.

C/.tlSi RCIC 3

3-77-059/3L 12/14/77 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months Inbcard and out-Loord isolation valves closen to pt.rF.i t Weld testing.

RCIC 3

3-76-5/3L 2/24/76 23.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Otttt ourd isolation to valve leak due 2/25/76 to loose packing.

Inbcard steam icolation valve closed. Mantial initiation capability of FCIC available.

RCIC 3

3-76-5 2/ 3L 7/5/76 46 hours5.324074e-4 days 0.0128 hours 7.60582e-5 weeks 1.7503e-5 months St,ced control to circuit inoperable 7/7/76 due to circuit toilure.

ECIC 3

3/31/76 26 hours3.009259e-4 days 0.00722 hours 4.298942e-5 weeks 9.893e-6 months Flockui for 1.iaintenance to 9/1/76 RCIC 3

12/7/76 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Throttle valve would not oten.

RCIC 3

50-276-75-39 7/8/75 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months Pump suction trom condensate storage tank valve no-18 inoperanle cue to detache,1 elect rici,1 leac.

Valve in cpen tosition, tnere-SYSTM'.

I:;OFF.9A3L's 01.

FERFC1;MA:.C E C UT!.G L:

O UTI.Gi.

li2blE3

!!;.il'1 ILI:_LL ESn101 oc:;.T:or, ei.us F.

fore } CIC operable except for transfer to torus.

RCIC 3

50-278-75-57 9/2/75 1 1:ours Ir.bcard isolation v&lve (10-15 f ailed to open.

IIPCI 2

1/30/30

13. 5 1.o ur s Repack AC-88 2

!!PCI 2

3/21/30 7 hours8.101852e-5 days 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months Eeplace solenoid ilPCI 2

11/28/79 1.5l$ours Repack AO-5 3 IIPCI 2

11/30/79 3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months Hepack va lvas t'.0-114 and f:C-10 tiPCI 2

8/20/80 1.9 days Reracve restriction to from oil pur.ips 8/22/60 HPCI 2

2-7 8 -4 fi/ 3 L 1/21/78 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months Valves or. ptr.ip suction line bloc'.ed r

closeo in ortier to repair leaking eneck valve.

IIPCI 2

2-78-09/3L 2/7/78 5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Turbine cvarspeed trip oue to mis-calibration of turbir.e speed control

!!PCI 2

2-78-15/31.

2/28/76 15 t.ot.r s Pump suction line flan 3e lfak ude to cef 0ctive gauket.

SYS*f f.!!

I!!OPEBA5LE OR FEHFGENI.:;CE CUTAGE ou'I AGL I:PaI550

!.!;.ill LLLLL I;b'ILJul nt': A cit,r:

cl.U M:

I!PCI 2

3/31/76 3.5 ;;ours I:cpair itectru.nent tiltires "PCI 2

2-76-22/3L 4 / 28./ 7 6 7 hours8.101852e-5 days 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months Pcwer tailure due to static inverter trip

!!PCI 2

5/ 2 t;/ 7 6 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months Repair valve !!0-188

!!P C I 2

5/31/78 3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months Repair 10ak on main steam nrain.

IIPC I 2

2-78-36/3L 9/1/78 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months Auxiliary oil pump to f ailed to start 9/2/73 due to ground in motor fiP C I 2

12/11/70 5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months I:epack valves MO-184 and MO-53

!!PCI 2

2-77-11/3L 2/8/77 3 1/2 nours 1:l'CI resacved from service in crder to repair stesia lear.

on outboard supply valve EO-2 3-16.

!!PCI 2

2-77-15/3L 3/1/77 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months liICI 16 moved from service in order to rack leak on stea.n 1ine crain valve AC-2 3 -t4 2.

IIPCI 2

2-7 7 -r6 0/ 3 L (3/13/77 it (Ia ys Turbis.e txbsust :;0 to valve inoperable due 9/17/77 to elt.ctzical short in control circuit.

I'1c.r.t in colG 7-

'iYG'II: i" I!: OPES / ALE OL PER FC E.9,I:C2 Ctrri.G E G U": ;,G1' EPAISEO 9032 LLL_ r.i?.

gffil.:ril gylgrigh cLyng shutccwn.

i!PCI 2

2-77-45/3L 9/26/77 26 hours3.009259e-4 days 0.00722 hours 4.298942e-5 weeks 9.893e-6 months 011 systtra control to valve leak due to 9/28/77 leaking C.idphragm 11P C I 2

2-77-75/3L 12/2/77 28 houtu Outtocrd stea.n to supply isolation 12/3/77 valve packing leak.

IIPCI 2

1/26/76 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Change oil tilter liPC'I 2

2-76-54/1T 7/19/76 2 days Turbir.e si'eed controller mal-function due to defective electrica1 compor.ents.

!!PCI 2

1/26/75 5.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Steam leak on valve t:C-14 IIPCI 2

2/25/75 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months stean linie drain trap valve leak IIPCI 2

S/1/75 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months Repack valve ilPCI 2

5/6/75 3.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months olock.co for testing ilPCI 2

8/20/75 10.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months I?epairs valve t10-14 4

i 11PCI 3

2-79-31/3L 6/22/79 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months til'CI initiation capebility lost ole to ligntnintj stride ut.ich Llew fuses on power inverter.

=e gur

sys'r Er' I!;OFEFASLE 01.

FERFCmG: ICE CU'i !.G U OU'I AGI.

JUEb13!$0 Eli LLL_ LU_t Eb2!51El rio rATI or, ci.u n ilPCI 3

3-76-9/3L 3/2st/78 1 1.oa r Strctic flow Jue to faulty flow controller.

tiPC I 3

7/28/76 7 hoitrs i?epait e).haust rupture disc.

IiPCI 3

3-7 8 -17/1T 6/9/78 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months Failute to deliver rat cd iIc.w due to iniscaliterated electronic governor.

Manual flow control available.

IIPCI 3

3-78-21/1T 11/6/78 10 hours1.157407e-4 days 0.00278 hours 1.653439e-5 weeks 3.805e-6 months Ur. stat;le flow ciue to J

iniscalibt ated gover nor.

Oversteen trip due to cefective valve in oversreed circuit.

iiPCI 3

S/9/77

1. 2 day s 1:eplace c.otcr operator to on valve tiO-20 5/10/77 11P C I 3

3-77-34/1T 7/21/77 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months Urratic s[eed control due tc bent lift rods in tuttir.e control valve.

!!PCI 3

3-77/46A/1T 9/2/77 8 cays Stean sty ply valva to I:0-23 -14 failed to 9/10/77 fully opcn Jua to corrof.ed valve sten.

IIPCI 3

3-77-44/3L 9/30/77 14 hours1.62037e-4 days 0.00389 hours 2.314815e-5 weeks 5.327e-6 months Failure to Jeliver rated flew oue to 1aulty flow controaler.

_9_

SL'o'l :i?

I:*0F3Fi.BI.3 Cl, PE RI'n Ft1A:.Cn Ctri,vis o u'l l.G E JUEMHO UEl'I LEl_Eih 1;FitlEl nu?ATIor.

c;.usE lil'C I 3

3-77-52/3L 10/26/77 3 1/2 bcurs Prescure control valve oil leak duc to 3J, lit cial h ragra.

9 liPCI 3

3-77-69/3L 12/26/77 7 hours8.101852e-5 days 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months Defcetive flow controller in automatic noJe.

!!anual inode operacle.

liFCI 3

3-70-37/1T 4/29/76 10 hours1.157407e-4 days 0.00278 hours 1.653439e-5 weeks 3.805e-6 months liPCI turbine trip due to high flow in flPCI steam supply line.

Systeir reset available.

IIPCI 3

4/26/75 23.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months ilepack valve A0-53.

to 4/29/75 llPCI 3

5/1/75 6.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Eupack vulva AO-53.

1 iinR Lcop A 2

3/18/80 15.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Leak rate test Ei!R Loor, a 2

3/20/60 13.5 hour5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months s Leak ratt tast.

Hn3 Lcop A 2

2-79-41/3L 9/5/79 10 minutes Injection valve H0-25A inot erable lue to o[.en breaktr Ewitch.

li:lR D Puirp 2

10/11/79 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Electrical rnodification RnR C Purp 2

9/24/79 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Electrica L 6.oalt ication li;iR H Purtp 2

10/11/79 1 5 houls Electrical.Todification Ella A Pung 2

9/24/79 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Electrical modification E}iR is Purrp 2

12/14/79 91 hourt Mainte nal cc on pum : -

av:nEM I::op:-:FAnI.rc oR F?.?!FGEMA!:CE C*/fAGM OUTAGl?

1251350 9311 LEl_LC2 Ebl51El D ui:A r l or.

ci.or,t:

~

to seistr.ic r uiGor t 12/10/79 lil!R A Purip 2

12/13/79 8.5 days Maintenar.ce pu:ap seismic to support 12/22/79 R!!R Lcop u 2

2-78-12/3L 2/7/76 9 hour1.041667e-4 days 0.0025 hours 1.488095e-5 weeks 3.4245e-6 months s Repair to learting nipple ora " C" RiiR pump R!!R Lcop B 2

2-76-25/3L 4/29/78 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months RHR pur.ps 13 and D blocked by operator error.

R!!R D Puerp 2

2-77-41/3L 9/14/77 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months Leakage of seal cooling water 1rcm Rita puaig D due to leaking pipe nipple.

Torus suction valve Mc-130 closed to stop leak.

R.-;R C Purrp 2

2-77-62/3L 10/27/77 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months Hl:R Ptr..p C re.nov e,1 f roar E. z vice to repair 1eak on hea t exen.m:Jer drain line.

R:iR Lcop 9 2

2-76 -1/3 L 1/7/76 26 days Injection valve motor to 110-10-250 failed due to 1 / 53 / 7 6 overheadCd sindin3s RiiR 2

2-76-4/1T 1/15/76 3 houre hl:R Lcop D inope rdi:le during aiaintenance on valve I;C-15 tifs. During recuiren surveillonce testing on 1001 1.,

injection volve MO-2SA failed to open.

Both loot s it.orerable. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _

H3'l E.M I:lOFERAill.;.' OR FERECBf!A::G CUT 1.G!:

OUTI.Gt:

1 1::P AIICD

'Jil l'I IEJ 1.C.

CATE. (! l ftiiATIOL C/.USS j

j R!iR Looi. 3 2

1/19/76 2 days 3epair s to ;10- 16663 to 1/21/76 RilR Lcop A 2

3/24/76 7.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months IllccLec ior ciaintenance S!!R A Purry 2

3/27/76 1 f.ay lieat exchanger lec.k to 3/20/76 BilR Lcop B 2

50-277-75-S 1/18/75 10 hours1.157407e-4 days 0.00278 hours 1.653439e-5 weeks 3.805e-6 months Injection valve MO I IS4b notor electrical failure. Plant in cold shutdown.

BliR Lcop A 2

50-277-75-45 6/181/ 7 5 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months Injection valve lic-10 -25 A t,uled to olen cue to raechanical failu re between tr.otor shaf t and drive geur.

Plant in cold shutdcun.

R:!R Lcop A 3

3-60-3/3L

-3/3/80 10 cays Injection valve to l'.0-25 A f ailiid to 3/13/00 o;en due to valve d t. mag e.

During rcquirea technical stecification testing, I!!!R : " t ump f ailed to sti.rt due to misaligned suitch in ocear.er closing circuit.

S!!R C Putry 3

'i/3/60 13 days Punc ::uction 1ine

. =.

SY O*I hI' I!.OPER AF.LF. OI;.

FER FC FIIA1.CE CUTAG::

OU'I I.Gi JyphlphQ Ud]'I LF.1 !C.

g6TL.J:jl D UFI.TI O!.

CAUSF.

to rt.pai r s

's/20/30 liHR C Purcp 3

'3/5/60 6 houlu Heliair pipin;j su;: ports RilR Lcop A 3

3/27/80 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months I:ocificatior.s to pit.e supports.

RiiR Loop A 3

3-60-10/3L 4/21/80 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months Injection valve I;O-10-25B failed to open Gue to clefcctive valve conponents.

R:lR Leop A 3

u /fi /79 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months Repack valve 140-1St.

Ri!R 3

3-79-33/3L 10/22/79 15 days EliR pust.ps B and D to blocke<1 tor innin-11/5/79 tenance. Pu:ap "A" tritpt_d on cvet-current clue to tailed stator insulation.

Plant in cold ehutdown.

R!iR Lcop 9 3

3/9/70 81 hours9.375e-4 days 0.0225 hours 1.339286e-4 weeks 3.08205e-5 months Repair valve t;O-136 E}!R Lcop B 3

3-78-22/3L 11/16/78 Its days Ir.jection valve 110-1S4B to failea to open due 11/30/78 clefCctive couponents.

RiiR Lcop A 3

6/1/77 3.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Repair valve 110-69A SER Lcop A 3

3-76/23/31.

2/17/76 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months Injection vclve i

t'C-10-25A failed to f ully ot:en dua to broken wire on otening tor ut o _

i SYS'IEM IIIOFEFABL'; CI:

PLRF CEtit.f;CE CUT;.;;E OU'i UIL jfPAIE.D.

Ill_tJ" 151_!.f!.

!;bTffjl L iti rl, l'101.

CAtlSE SW1LCh.

H!!R C Purrp 3

6/9/75 r4 1.our s Bloci.td ier repaits 11:IH Lcop A 3

6/20/75

5. 5 da,'s Repair valve ster.:

to (10-69 C 6/26/75 R!!R C Pop.D 3

11/22/75 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Breaktr Iepair Core Spray 2

2-79-34/3L 7/3/79 2 houru Dairing a surveillance Loop A test, core spray 1 cop "A" test valve 110-14 -26 A f ailed to fully close due to earnagt d valve seat r in<,.

Core Spray 2

2-76-75/3L 11/9/76 2 1.ours Full flow test return valve t.0-2t,A tailed to Loop A close cue to aerective ejear train.

Core Spray 3

3-60-8-1T 3/5/80 2 ininutes Loss et [ower to Loop A sys tetii v2.lves cue to failure of load canter E334 to recover autcinatically oftar pcuer rectoration.

Core Spray 3

3-76-13/3L 1/5/76 10 houru Injtction valve l'.0-14 -12 L failed to Loop E oten cua to riagnetic trip of c otor breaker.

Trip due to low stetroint cir it t. --

=_

SVGTEM 1:10FI:leAitLE OR FdRFGR:ll.:lC.C CUTAG::

Otl5 Aq1:

_It'?AIT5.D I)l,jl'J 1.!_:1_;.g.

Eifl!,;j:l DUPAT IoI.

CAUsL j

Core Spra/

3 3-76-74/3L 11/ 2 3 / 7 t>

24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months Full flow test Ieturn Loop E

" A l '.b failed to close c.ne to low torque skiten setting.

Core Spraf 3

50-278-75-51 S/19/75 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months Full flow tet,t return Loop A valve t.0-14 -26 A failed to clcse.

Core Spray 3

3/21/7 5 4.2 days Repair valve Loop A to lic-26A S/25/75 Core Spraf 3

50-278-75-72 11/26/75 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months Full flow test return valve F.0-14 -26 A failed Loop A to close due to broken wire on closinij torque switch.

ACS 2/3 2-SO-2/1T 1/10/30 9 days Fb2 Leakace of nard-seated to check valves in 1/19/30 safety relief valve (Fil2) instrucent. tic 1/10/00 6 cays PB3 sutfly t-it.ing to

ew type valve installed 1/16/80 (Pil3)

ADS 2

2-78-37/3L 9/1/7d 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months SOLIoint drift in tinte delay relays 01 bOth luots.

ADS 3

3-77/463/1T 9/2/77 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Sett oint crift in tire celay relaya of both lcots. -

._m

.3?S'I *3 ?

II:OFEF/.4I..'s CH P E N F C F1-II,:.C :

CUTAGE OU'If GE JUEnlE3 931'l Lbh_EO CM EJg},

[Qf6'ZlgG C/.U M ADS 3

3-76-39/3L 5/6/76 3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months Ceti.oir.t dr it t in titre delay relay,

Loo [.

E Ciesel Coirnon 1/3/60 21 hours2.430556e-4 days 0.00583 hours 3.472222e-5 weeks 7.9905e-6 months illockcc; to c:ril L Generator E2 holes I

Ciesel Corriron 1/7/60 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months llodify pipinj Generator El Diesel Cornron 6/9/80 ri.1 days Enrjine overhaul Generator El to 6/13/80 i

EnJ ne overhaul Diesel Contron 6/181/ 8 0 3.2 days Generator E3 to 6/17/80 Ciesel 6/23/80 1 day Cleaned heat Generator E2 excha rajer Ciesel Cormon 6/23/60 3.9 days Er.rjil.G overr.aul Generator E2 to 6/27/80 Ciesel Corrir en 6/'s0/80 2.8 days Engine overnaul Generator 54 LO 7/2/u0 Ciesel correron 7/3/80 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Ins [.ect crank shaft Generator E3 Ciesel coniron 7/S/60 17 houru Keset oversgeed trip Generator Era Diesel Coirir.on 7/19/f.0 2.1 d4yu Repair Lt. rust,

S'!S':EY 1:lOFEFAr tg on s

FERFCFi'A!;CE GUTAGl; O UT;.Gl.

JUEblga uaJ-J L e h ::c..

EbIhlul nuP;m m.

C;.u n r.

Generator 53 to beali reA 7/21/8C Ciesel Corr:ron 1/5/79 2.4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months Replace governor Generator E2 Ciesel 1/17/79 2.1 hours1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Insi.ect fuel racks Generator El Diesel copinon 1/22/79 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Replace governor Generator E3 Ciesel Costrron 3/13/79 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months Replace governor 2

Generator E3 Ciesel corttron 4/22/79 2.1 days Engine Overhaul Generator 53 to 4/25/79 Ciesel Connon 4/25/79 1.7 days Engine Overhau1 Generator E2 to 4/27/79 Ciesel Corriron 4/27/79 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Replace tuel oil Generator E2 line Ctesel Contron 4/27/79 3.2 clays Engine Overhaul Generator El to 5/1/79 Ciesel Councn 5/1/79 1.1 days Engint overhaul Generator E4 to 5/2/79 Ciesel coir:ron 2-79-25/1T

!/18/79 10 hours1.157407e-4 days 0.00278 hours 1.653439e-5 weeks 3.805e-6 months lialt Ecrain and half Generator E-2 1801(.t101. due to SYS'I E!:

I!;OFEFICI.E GF.

FEl:FCICA!.CR CUT;G3 OU'I AGL EPSIEED UNIT I.E! l.C.

C AT!:{El 09h61199

((1LM tiie:rel tr ip. Trip cauLec.i>y loss of ccutrcl cil Lnrough cracktc [ii.c titting.

Ciesel Coitrion 5/18/79 3 houts Repair lear. in fuel Generator E2 line Ciesel Contron 6/19/79 84 hcut s Rei' lace r,over;.or Generator E2 Diesel Coincon 7/3/79 9 hours1.041667e-4 days 0.0025 hours 1.488095e-5 weeks 3.4245e-6 months Replace sovernor Generator Ell Ciesel Contron 7/15/79 12.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Replace governor Generator El Ciesel corriren 7/30/79 3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months Replace tuning on Generator 23 governor Ciesel Cottfron 9/11/79 6 houru 11 egger transf ormers Generator E3 Ciesel Corirr.on 2-7 9 -t4 5/ 3 L 9/2:4/79 30 stinutct i'i.11 1: cram ana halt Generator E-2 icolaLion due to dicsel trip. Operator renovt.u onergericy.

service wat.or, caucing rise in lune oil tung erature and trip.

Diesel Corrrron 10/3/79 5 1.ours Ret. lace c;overnor Generator E3 linkage Diesel Coruron 10/5/79 5 1,ours nepair fuel oil

- i t,

GlST F!!

I!!OPEFADIM OR PE R FC F;;Ai:C Y CllTI.G E OU AGl; It!PA l rm9 33r; g<g r.EL g,c,

c,Ti.EQ Dt) h AT I O';.

Cl.ll!.?.

Generator 2:2 tt.t. ing Ciesel Cottrron 2-78-1/3L 1/3/70 7.5 riourc iiepair to lube Generator E-2 oil hrater.

Diesel cortrron 2-78-S/3 L 1/18/73 e liours Etr. air to luce Generator E-2 oil heater.

Diesel Coisron 2/28/76 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months Clean crankeace Generator E2 ejector ciesel contron 3/1/78 19 hours2.199074e-4 days 0.00528 hours 3.141534e-5 weeks 7.2295e-6 months Investigate engine Generator 32 to trouble 3/2/78 Diesel Cortiron 2-7 8 -1 ts / 3 L 3/28/7a 10 hours1.157407e-4 days 0.00278 hours 1.653439e-5 weeks 3.805e-6 months Trip cn high Generator E-2 crankcase pressure caused by vaporization of water in oil attded to diesel E-2. StoroJe of dr urts irat rovea.

Ciesel Corrrron ft /24/ 7 6 1.9 days Engine Overhaul Generator E-4 to I4/26/76 Diesel Corrrron I4/26/78 2.9 days Ent;ine Overhaul Generator E-3 t

to r;/29/ 7 6 Ciesel Cormon 5/1/78 2.6 days Er.gine Overhaul Generator E-2 to S/3/78 Diesel Contreon S/t4/78 2.2 days 1:ngine. Overhaul Generator 2-1 to SYS'I E:#

I:;0PEFABLE OR FIR FOR1/WCE CUTAGE OC'TISI:

ISEn1EEG H311 LEL_bC1 C6131El 09h6I190 c6UuS S /6/i ti Ciesel Corrrron 6/19/76 3 f.ours 1:epair heat Generator E-2 to excharger l ear.

6/20/76 Ciece1 Ccirgron 6/30/70 ti hours Repair heat Generator E-2 exchanger l ear.

Diesel Connon 8/22/78 2 hoars Repair reservoir Generator E-4 valve Diesel Connon 9/26/78 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Heplace tooSter Generator E-3 air tubing Ciesel Coirgron 9/27/78 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months R(. place engine Generator E-3 goverr.or Ciesel courron (1/27/77 6.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Repair oil leak

)

Generator 3-2 Ciesel Connon S/31/77 11.7 days Engine Overhaul Generator.7-4 to 6/4/77 Ciesel Confron 6/6/77 3.3 ' lays Engine overhaul Generator E-3 to 6/10/77 Ciesel Confr on 6/is/7 7 2. 14 days liodif ication Generator E-3 to 6/10/77 Ciesel 3

3-77-26/IT 6/13/77 6 f.ours Diet el 1:1 blocked Generators f or inaintenance..

SYSTE!<

I:iOPERI.istR Oh FERFCFI1;C;CI CUhGE Ot/ /.GL l t; E M S E D 90.12 LLE r.o.

[.5 g.Ig1 i)oici ro :

c;.i.cE I

El,E3,E4 Air ccat.t.1 t.uGot S on h3,L4 tripr.ca on thermal overloa:1.

Startir g air tanks on E3, E4 empty due to lecks. Administrative control of air valves iriproved.

Diesel Cointon 6/13/77 1.4 days Engine Gverhdui Generator E-1 to 6/14/77 Ciesel Corttron 6/14/77 4 hour4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months s Calibrate s-sitches Generator E-4 Diese1 Cottr.on 6/17/77 1 day 1 cchtication Generator E-2 Ciesel Coirtron 6/17/77

,1.7 days Engine overnaul Generator E-2 to 6/16/77 Ciesel Corrircn 6/20/77 21 5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Erigine Overnau l Generator E-1 Ciesel Co rttron 6/21/77 1.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Rcpair tuel leak Generator E-3 Diesel Coranon 5/27/77 9 hours1.041667e-4 days 0.0025 hours 1.488095e-5 weeks 3.4245e-6 months Ten.rerature switch Generator E-3 calibrc. tion Clesel Cortiren 2-77-37D/1T 8/26/77 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months I)iesel f aila i to stc.rt Generator E-1 d t.G to o[erstor tailure to reset s hu t.d L+.!: r e la'j.

s s q

~

UY$'ll:!'

s II;OPEFABLC CI?

FENFORMA::CE CU' /.G t:

015 /.GL IriPA NED iP;1'r -

LLE_! g ggg,{g nih ; TIO!.

Cl.UEE i

coitication per-f or ried to provice on alarm in the con-trol roore when a shut-dcwn relay is not in the r(. Set condition.

Plant in cold shu tcicwn.

Diesel Cortiren 8/26/77 8.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Teinter6ture cwitch Generator a:-1 calibration Diesel Corrrron 8/28/77 9.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Temperature _nuitch Generator E-3 calibration Ciesel Coirtron 2-77-37A/1T 8/26/77 4 days Overst eed t rit, ping Generator E-4 to due tc ruisadjustoca.t S/30/77 of trip tr echar.13m.

Diesel Cort tron 2-77-63/3L 11/1/77 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months Dierel Shutdown to Generator E-4 facilitate cleanup of cil n(.ar gener.stor.

Diesel Corrrron 2-77-71/3L 11/22/77 2 hcurs Diesel shutdown to Generator 3-2 facilitate repair

<>1.

leaking f uel line and oil cleanup.

Eiesel Coirrron 2-77-77/3L 12/19/77 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months Tripp(d on "A"

phase Generator E-1 ditferential relay.

Ciesel Corriron 2-76-2/1T 1/11/76 10 hours1.157407e-4 days 0.00278 hours 1.653439e-5 weeks 3.805e-6 months Diesel failed to start Generator E-3 di.e te oten D.C teed breaker.

Diesel Coirtr on S/10/76 1 da ';

t:ai r.te na r.co fiYS'I El1 I:!OFEFA' ALE CI:

PERFCTI!A:!CE CUTAGE OUTAul; JUEblF#72 M315 LLE_bO2 GL'ILlG1 OUILIlob GLUG5 Generator E-1 to 5/11/76 c.

Ciesel Corrar.cn 5/17/76 23 hours2.662037e-4 days 0.00639 hours 3.80291e-5 weeks 8.7515e-6 months P.E.i r.t s:na nce Generator E-2 to 5/18/76 Cienel Cost:90n 5/1's/76

1. t: days' l'aintonarice Generator C-3 to 5/20/76 Diesel Coirgron 5/20/76 18 hours2.083333e-4 days 0.005 hours 2.97619e-5 weeks 6.849e-6 months

!!aintcnance Generator E-4._

Diesel Contrrcn 7/30/76 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months t!aintenance Generator E-2 Ciesel contron fl/ 3 /7 6 10 hours1.157407e-4 days 0.00278 hours 1.653439e-5 weeks 3.805e-6 months Hepair oil leak Ciesel contron 50-277-75-31 4/23/75 5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Inatility of Generator Generator E-2 50-278-75-25 to sutetain load due to foreign ruterial on fitld flashin8J lotf c relays.

i Ciesel connon S/12/75 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months 11 air.tenance Generater E-2 to 5/13/75 Ciesel contron 6/1/75 5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months Tera erature control Generator E-83 valve failure Diesel Connon 50-276-75-36 6/27/75 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months Diocel brea<er i:-13 Generator El fallco to close i

<!ue to 1 (:r.t lint. age i t.

the bt eaia:r swl.tch.._ - -

SYSTLt' I!;OFF. FAILLE OR P2H FCIll*,Jd:CE CU*i Min Offi A';E JUEh1EE0 Ugli I.F.F !.g.

[bT3Jyl EllEAT105 CLysh Cienstl Corricor.

50-277-75-67 10/21/75 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Dis:cel breaker E -i 2 Generator 214 faileo to close due to uncharged brea<er chargir.g spring.

Diesel Costarcn 10/30/75 1.1 days Gcvernor coritrol Generator E-2 to iris ta bility 10/31/75

- 2:4 -

ML20062K957

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