ML20002E381

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Forwards Addl Info in Response to NUREG-0737 Requirements Re Containment Isolation Dependability,Eccs Outage Rept & Auto Switchover of Reactor Core Isolation Cooling
ML20002E381
Person / Time
Site: Pilgrim
Issue date: 01/22/1981
From: Morisi A
BOSTON EDISON CO.
To: Eisenhut D
Office of Nuclear Reactor Regulation
References
RTR-NUREG-0737, RTR-NUREG-737, TASK-2.E.4.2, TASK-2.K.3.17, TASK-2.K.3.22, TASK-2.K.3.27, TASK-TM 81-10, NUDOCS 8101270690
Download: ML20002E381 (34)
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Text

. .

BOSTON EQlSON COMPANY GENT e AL Orrtete GCC ScyteTON Stett?

B o s tc N. Mas hac N .s t rf s 0 219 9 A. V. M O R I 5 4 MANAGER NU C LE AR C PE RATlQN S SUPPO RT DEP ARTM ENT January 22, 1981 BECo. Ltr. #81-10 Mr. Darrell G. Eisenhut, Director Division of Licensing U.S. Nuclear Regulatory Comission Bashington, D. C. 20555 License No. DPR-35 Docket No. 50-293 Additional Infomation in Response to NUREG 0737 January 1, 1981 Recuirements Ref. (a) BECo. Ltr. *81-01 dated January 5, 1981

" Responses to NUREG 0737 January 1, 1981 -

Recuirements"

Dear Sir:

In Reference (a), Boston Edison Company requested an extension of the submittal date until January 15, 1981 for three of the NUREG 0737 items. The ourcose of this letter is to provide SECo's responses to those 0737 items and to provide clarification for two additional items as requested by your staff.

l The Task Action Plan Items Responses attached to this letter include:

l II.E.J.2 Containment Isolation Dependability I I . K. 3.17 ECCS Outage Report II.K.3.22 Auto Switchover of RCIC II.K.3.15 HPCI/RCIC Break Detection Mod.

II.K.3.27 Comon Water Level Reference Point k,

Il 8101270(390

}

CCOTON EDICON COMPANY Mr. Darrell G. Eisenhut, Director January 22, 1981 Page 2 - BECo. Ltr. 781-10 We believe this information is responsive to your needs; however, should you have any additional comments or cuestions, please do not hesitate to contact us.

Very truly yours, Attachment Commonwealth of Massachusetts)

County of Suffolk )

Then personally acceared before me A. Victor Morisi, who, being duly sworn, did state that he is Manager - fluclear Operations Support of Boston Edison Comoany, the applicant herein, and that he is duly authorized to execute and file the submittal contained herein in the name and on behalf of Boston Edison Company and that the statements in said submittal are true to the best of his knowledge and belief.

My Conmission expires: s- _,

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J Attachment to BECo. Ltr. 281-10 E

e

. .- . . _ _ , . , , . - - - - . - . _ _ - . . _ . _ . _ . . . . . . . . , . . . . ~ , - - - . _ _ _ _ . . - , . . _ - - - . . _ . . _ . . _ . , . . _ . _ _ -

II.E.4.2 Containment Isolation Decendability Pilgrim Station Operations Procedure No. 2.2.70 " Primary Containment Atmospheric Control System" has been revised to incorporate administrative controls which will limit the time the 20" vent and purge valves are open to 90 hours0.00104 days <br />0.025 hours <br />1.488095e-4 weeks <br />3.4245e-5 months <br /> /yr. during power operation.

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II.K.3.17 ECCS Outace Reoort

The following list represents ECC System Outages at PMPS from January 1975 through December 1979. The ECC Systems included in the report are

l High Pressure Coolant Injection Automatic Cepressurization Reactor Core Isolation Cooling Residual Heat Removal Low Pressure Coolant Injection and Containment Cooling Core Spray Emergency Diesel Generators i Salt Water Service Reactor' Building Closed Cooling Water The report was developed from a review of relevant plant records including A0s, LERs, Maintenance Requests, Maintenance Work Orders, Annual Reports

and Centrol Room Logs. An ECCS outage was considered. to be any event which resulted in a limiting condition of operation as defined by the Technical Specifications; therefore, ceriods of inoperability during which operability was not required by Technical Specification are not f acluded in this report.

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

ECCS OUTAGES (in days)

Year 1975 1976 1977 1978 1979 Tot System HPCI 9.6 5 2.2 27.2 13.3 57.3 ADS 2 X 9.7 X 5.1 17.8 CORE SPRAY 7.3 7.4 X 0.3 2 17 RHR S.6 3 1.6 47.2 5.6 66 RCIC 11 0.3 3.8 9.8 6.9 31.8

  • RBCCW X X 8 .,8 10 6 24.8
  • SSW 112.9 47.3 56.8 45.9 99.3 362.2 DIESEL GEN 3.7 11.4 3 22.4 4 44.5
  • 0n 11/23/79, our Tech. Specs, were relaxed regarding SSW and RBCCW Pump operability requirements. The Tech. Specs. now recognize the fact that Pf1PS has one spare pump in each of these LPCI subsystems. Under our present Tech. Specs, the ECCS outage time for the SSWS pumps and RBCCW pumps would be considerably lower.

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. - . . _ . . - .. - ..,, ..._ -,.- ,_ . . ,.. _ _,..-,. .. ,., , _ . _ _ _ , _ . , . _ . _ = . . . , . . _ . , , . . . _ . _ , . , , , , . . . , . _ , - - - , - , _ . _ . . . , . . , , -

, () bl .] ..! b '.. I f,' . '

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  • l Talvle a MilMM ARY OF RCE ft UllTAUIUt FOR I'llAllllM MrA110H

' IIF$ tem i lilP,li Pren nire Coolant liilect ton (IIPCI) Syst em

  • _UUTMIM3 trE71M_ .R_ItRI O R 31)

IIATR *IIM M IMF11 A11M(I CON DI'I10H COMMMHIS IIA 1R llMR _ IIA}IN1 MR IIf48. !HMiil~

RFFMUT  !

I

'4/11/75 1800 IIPCI Turlitne Stop IIO- 7 5- 7 4/12/75 1810 1 -

30 l .l e Valve i nope rali t e t

5/8/75 0910 IIPCI - ifov 2101-1 t1R-75-176 5/8/75 1815 - 8 45  !

valve falleil to open I l

I 5/29/75 1030 tiPCI Turl1ne Stop UO-75-il 5/10/75 0145 -

15 15 Valve I no pe rali.l e 6/8/75 0210 IIPCI t1ov 2301-1 falleil 1f0- 7 5- 11 6/10/75 1145 2 9 35 to open ,,

11/1/75 0008 til'CT - Rupture Dine 11/4/75 1900 1 15 - '

i '

(04) falleil - Sys It10P for

  • tia ln t enance 12/2/75 0530 IIPCI INor for flaint. 12/1/75 2016 1 14 46 8/12/76 1010 til'CT St eam Supply I.ICR 76-19 /11, 8/12/76 1120 -

2 50

  • Valve if(b2301-5 If10P . 1 I

. 9/29/16 0645 IIPCI - tiov 2101-1 WRP-76-1082 10/1/76 1900 2 12 15 I l Packing I,eak itWO-76-1304M

  • ttR 1217
  • l l / 22/ 7f, 0610 IIPCI Valve 2301-3 11/21/76 1802 1 11 52 l, excennive leakape - l Control Grounil Viv. , ',

An 29 & 10 .

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F,] 17..I O IC'l fiil f. '.:) I  !! 'l - 1 li ti if I L 1 ( "I ll~ .1 Ll l' ~. ) IO l

. I Telete e MllMMART OF RCCH UtlTAHH!t FOR filAIRIM NTA110H s, I 8 F'l M" I liigli Prennure Coolnut 1:1)cctton (llPCI) Syst em

  • T1M r. i

_ Q UIAHA.I M AVIlYA _. NMust Ri' _.__liAYM .IN RF,FR_CT1i1C IIATR 11MR IMillA11NO COHill110M COMMRH1s F yl R 11Mn likk.

'12/6/76 00-08 IIPCI - Itu)P for repairr 12/6/76 t il00 - 14 -

l .

. (04) to 2301-10 (AO-10) .

I 0700 llPCI - It10P for valve if R- 76-84 12/20/76 1500 0 8 - I 12/20/76 I Haint.

MR-77-540 2/21/77 0110 -

16 to .

2/22/77 1100 llPCI INOP to sepair leaks-AO-11 6 weld on MR- 7 7-64 7 level nenminP. Isne l ,

I .

MR- 7 7-656 1/8/77 1100 - 6 '

, 3/8/77 0700 IIPCI-INOP to rePnir .

An-11 4

I 1/23/,77 08-16 IIPCI INol'-BKR for VIN 1.ER- 7 7-9 /11. 1/21/77 1700 - '> -

(12) MO-2301-1 lead u/v roll ,

flR- 7 7-901 1/24/77 1910 - 10 10 3/24/77 0900 IIPCT INOP-lenking flange on gland condenser ,

flit- 7 7-I l 71 4/19/77 1800 - 10 30 4/19/77 0730 IIPCI INOP to repair leak on gland ,

condenser 0900 IIPCI & RCIC Inointed 5/22/77 1300 0 4 -

l

$/2/77 to work drain llue in l condenser liny ,

IIPCI-INOP lenk on MR-78-440 2/10/78 1600 - 4 10 2/10/78 1830

  • gland seal ond. --

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I Tatile i SilMMARY OF RCCfl OUTAURN FOR PIIAIRIM frrAT10H

  • flysicm I liigh Pressure Coolant Irij ec t ion (llPCI) System ^

.__QUAflAJ F_fAGlYB_. . HMORRIL 7ftQl{ RFFR_CT DATR TIMR IHmA11NO CONDm0H COMMRHTil 1)ATR 11MR _ , IIA Y S IIRS. MC t

2/13/78 0600 llPCI-Setam lead trap MR-78-419 2/15/78 1309 '

2 7 -

, isolated .

I 2/13/78 0845 IIPCI-INOP leak on MR-78-458 2/14/78 1900 1 14 15 t l gland seal cond.  ;

4/8/78 08-16 IIPCI-INOP blew 1.ER-78-0131, 4/11/78 08-16 3 - -

f Rupture Disc. (12) 4/19/78 0315 IIPCI-INOP to repair '1R-78-922 4/24/78 0625 5 5 10 leaks MR-78-946 ,

MR-78-1041 ,

4/25/78 0536 IIPCI-INOP Gland 4/26/78 1900 1 13 24 Condenser leaks 4/29/78 0400 11PCI & RCIC - INOP for MR-78-1063 5/5/78 1806 6 14 -

Perf of PDCR & numerous MR-78-1064 1.ast MR I MR's Assoc w/PDCR HR-78-898 cleared }{

. MR-78-1061 l i MR-78-1017 * *;

I 5/10/78 0730 IIPCI INOP-Faulty motor PfR 1228 5/12/78 2300' 2 15 30 ,

operator leaking valve MR-78-1236 .

5/30/78 0810 IIPCI-I ..

  • to repair -

5/30/78 1520 -

7 10 ,  ;

Steam leak

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Table s 8tiMMARY OF RCCH OtfTAURN FOR FilAlHIM NTA110N '

8 Mystem I liigh Prennure Coolant Injection (IIPCI) System -

. '(

k 1 __QUTMlitE M E T Lil__ _R_HN1Ulf RD 'I1M R IN,_RFFR_CT  !

IIATR TIM R INFI1ATING CONillTION COMMRN1H DA1 R l iMR,,,,_ HAun h ns. hic i i  !

'8/8/78 0610 til'CI-Pump-INOP packing i1R-78-1768 8/11/78 1930 1 13 20 .

. leak & turbine stop f f R-78-l %9 -

valve leaking '1R-78-1170 t 8/11/78 1945 llPCI-Gland exhau9t FM1 78-78 8/11/78 *2400 - 4 15  !

blower trips 11KR -

a 12/8/78 1210 IIPCI-INOP to repair ffR-78-2815 12/8/78 1620- -

4 10 steam leak l I i t 12/21/78 0700 IIPCI/RCIC-INOP to rep. f1R-78-2188 12/21/78 2036 -

Il 3 6, - ,

, leaks on drain 1ine i

12/22/78 0900 IIPCT/RCIC-TNOP to rep itR-78-2188 12/22/78 1320 - 4 20 leak on drain line ,

12/30/78 1030 llPCI-INOP to repair f1R-78-1039 12/31/78 0140 -

15 10 ,

leak on aux, oil I.ER-78-057 {

12/30/78 2232 IIPCI INOP to repair

'fR-78-1041 12/31/78 0140 -

3 8'  !

cracked oil fitting .

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1/24/79 0715 llPCI INOP to change oi! ffR-79-59 1/24/79 2140 -

14 25 -

in turbine . .

1/10/79 2300 IIPCI-INOP to repair ffR-79-121 1/31/79 1700 -

18 -

[ ,-

leaking valves An-2101- l 29 and 30 .

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  • entImate i

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k3 1 F ~.~_1 E.I.] i.3.1 IC
1 f.E.3 fc.'a F1 Fl.~1 Inl iF 1 LT.I ( "I ll~.1 O l~.] El I Totle e SUMM ARY OF RCCR UllTAURS FOR PilAIRIM MAT 10N .

Rystesse i liigh Pressure Coolant injection (llPCI) System -

. 9MIAH.ll1Ef.AGIlYL Rinivnals ' 11Ma IN RFFRCT IIATM 11MR INT 11ATlHU Ct) Milt 110N COMMRHTS HAYR~ "TiEn liATH HRi.- ~iii C 7/14/79 0125 IIPCI-INOP t o replace MR-79-77 2/14/79 1520 -

13 55 l .

l. lower gland seal conder -

, [

ser gasket I,ER- 19-0081, i i e

  • 2/14/79 0908 IIPCI-INOP to repair MR-79-207 2' /15/79 0930 1 -

22 1 i

drain line leak  ;

5/30/79 1800 llPCI-INOP to replace flR-79-1229 5/31/79 1448 -

20 48 gland seal cond. gasket 1 l ,.

I  !

6/29/79 2147 IIPCI-INOP to test auto Valve 2301-5 in 6/29/79 2215 - -

18 .;

i. start logic open i'!

, i, 7/5/79 1359 IIPCI-INOP to repair MR Calcelled 7/5/79 2l06 -

7 7 [

I nteam leak i 7/6/79 0133 IIPCI-INOP to repack MR-79-1547 7/6/79 0400 - 2 27 f' valve I.V-31 & replace MR-79-1442 drain valve j'

7/13/79 1310 IIPCI-INOP to rework 79-02 1.ER-79-022 7/17/79 2110 4- 8 -

. bed plates for pipe Rx Ilack on line at i!

supports 7/17/79 2110 .l 8/8/79 0800 llPCI-VI.V 1.v31 - Ita)P MR-79-1799 8/9/77 1844 1 10 44 .,

repack l. .

. i 8/30/79 0715 IIPCI-Ita)P to replace MR-79-1945 , 8/30/79 1600 - 8 45 ,I naskets on A0-2101-29 4

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! Tolde e SUMM ARY OF RCCH OffTAURN FOR l'lI GRIM NrA110N

. Mystem t IIPCI System and Automat le Depressurization Syst em - ,

RPRTORRI) 11MRIN RFFRUT

.__DUIAftli MfilVTIU[_ il5IR~~ ~ iiM I IIA Yi ~IIRE. Mi r 11ATR 11M R INITIA11NO COMIDI!10N COMMRN13 i

9/19/79 0830 IIPCI-INOP to replace ttR-79-2077 9/21/77 0814 1 23 44 l

. gland seal condenser Repairs completo MR cleared gasket 9/19/79 g i

10/30/79 1445 IIPCI-INOP Valve 1102301- ffR-79-2468 10/30/79 1740 -

2 55 1, e

8 Motor Pfalfunction 11/29/79 1230 11PCI-INOP to repair flR-79-2642 11/30/79 0030 -

12 --

leaks in system itR-79-2639 l f f R-79-229 3 g 12/21/79 1316 IIPCI-INOP Faulty MR-79-2743 12/21/79 2110 -

7- 54' snubbers leak in steam MR-79-2773 (Canc.1 -

  • trap P1R 7 7 7 /a  ;

7/20/75 1200 liigh tallpipe temp. Rx-Scram 7/2'2/75 ' 1258

  • 2 -

58 i I

Stroked valve-would not reset-?tSRV "D" f 2/1/77 0230 PfSRV-203-3D Packing MR-77-408 2/1/77 2045 -

18 15  !'

leak .

l 5/!!/77 0905 MSRV-A,B,C,D-INOP for lin i t trip - 0905 5/12/77 08-16 1 2 55 i Diaphram replacement Done while S/D (1-) l .,

-C failed to operate IIR-77-16p , ., .

I,I:R-7 7- 16T i l -

1 11/14/7/ 2145 "B" relief valve - MR-1732 ,

11/16/77 1200 2 - -

failed diaphram 11/16 '

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I li il El L 'l i'~l O  !. I i .J Le i l .

Table

SUMMARY

OF RCf'N OUTAOMN FOR f*llAIRIM frTATION 8 P"I I Automatic Depressurization System and Core Spray (CS) System Q'.

&d

- RUAHRJ EERGlYg__l . RprIOnan ilua!n nFynyt DATn 11MR IMITIAT1MO COMIM110M COMMMM1B flATH llMR _ IIA TS H RS. MK. cza

?15 p =s t

  • 11/19/77 1000 MSRV-203-3D "n" s t eam line relief MR-77-3093 PfR-77-1153 11/21/77 1355 2 3 55 @d ,!

, {_- ~2 t

leaking ,

m 30 M____;;

L I 11/19/77 1^ 't. .spau. 213- 3n N i / e r./ 7 4 1 _

",,u i t .,

,,,i,e (fpg  ;

< m) ..n i ,.no . . .

(Qfj 11/19/77 0600 MSRV-203-3A MR-77-2004 11/21/77 1400 2 8 .

(3 MSRV-203-3C tlR-77-2005 .

]

f1R-77-3149 ,

t 6/15/79 0005 "D" MSRV-INop to r epa t i- 6/17/79 1051 2 10 49' l leak "A" "D" Relief Valver MR-79-1701 7/30/79 0700 2 17 43 7/27/79 1317 & ,

, "A" leaks "p" inadvertant open s

2/10/75 16-24' Core Spray I.oop "A" linit S/0 2/11/75 00-08 - 8 - .

(20) drained for U.T. Insp. (04)

~ '

S/D started but 1/25/75 2030 6 6 15 ,

3/19/75 1415 "A" Core spray pump INop - grounded motor RilR "n" ineader returned-S/D Stop g .

ped-continued ops .,

with core sprav l.

. pump IN0p l }

+

t10- 7 5-5

  • 0705 Core Spray 1.oop "A" WRp-75-884 12/23/75 1635 - 9 30 '

12/23/75 IN0p for pump BKR insp. ,6 e

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  • 8 Tot.le SUMMART OF RCCH OUTAURS FOR Pil/1 RIM ETA 110N '.

8 P"I 8 Core Spray (CS) System -v' R H R. (LPCI 4 CM CM*

l

  • T_lg R _IN RFF RCT JETARl[JP_F.1@YR_ _R_M_NR R_If _

HA1 R 11MR DAts Hits. MIC HATR 11MK INT 11AT1HU CONDri1ON COMMRM18

'12/30/7 0815 Core Spray "B" INOP fo - WRp-75-890 12/30/75 1500 0 6 45 l 4

. IIKR insp. , ,

i 1/16/76 1/9/76 1140 "A" Core spray pump URP-76-15 1450 7 3 10  !

I I Nol' {

1/30/76 0851 Core Spray I.oop "A" ttR76-102 1/30/76 1430 -

5 39 h ttov 1200-25-A fai1ed i j to operate l

[f 3/23/78 1112 Core Spray cump "A" itR-78-789 3/23/78 1700 -

5 48 LER-78-012L Breaker failure i.

6/12/79 0222 Core Spray loop "A" -

MR-79-1231 6/13/79 2150 1 19 28 .

INOP to check min. '

flow line ,

9/10/7" 0657 Core Spray Pump "A" -

ifR-79-2026 9/10/79 I423 -

7 26

.1m . r u. ,__

1/11/75 08-16 Valve not seating - "A" llender INOP 1/17/75 08-16 6 - - .

(12) worn internals RilR (12) I

+ 1 1

2/19/75 1300 Valve Failure UO-75-2 2/19/75 1400 -

1 -

~i (1001-28A) "A" LPCI loop '

. i A loop I.PCI INOP Valve l, j

- operator l 1

. Dismantled .

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C 'l I"~1 FE.~.i EE.I U9 IQ E3 ElI'lfl :^1 I; tl !." l 0 t E "I Cl L.) fJG 4 I h*

Tel.le SIIMM ARY OF RC(11 OllTA0lm FOR PilAIRIM KrAT10N  !

Splem i RilR Syst em: (1.PCI Syst em and Containment Cool ing tkule) . ,

a

._ RETMLIU l'LILV'!11 RIETORRD llMR IN RFFRCT DATR 11MR INITIA11MU CONDrI10H COMMRN13 aphiE~ ~~ ilM R liAT5 ' ~ilRi.- ~MiiC' l

I 3/17/75 2213 RilR-l.PCI Mode INOP Breaker problems 1/20/75 0400 2 5 47  ;

"B" header isolat ett wi th RIIR pump "D" .

  • l leaks also encountered i 4

9/3/75 1705 Cont. cooling sys 110-75-24 '9/1/75 1830 -

1 25 1 Mov 1001-23A- failed -

1 to close >'

l 12/9I75 0650 "n" RilR pump INOP for 12/9/75 1000 -

3 10 l  ;'

Breaker maintenance "B" WRP-76-527 4/8/76 0800 18 -c 4/6/76 1000 RilR llent exchanger 1 INOP to inspect Shell ,;

. side-includes RilR pump <

og..and "D" 7/12/76 16-24 RilR-11e-Jer "B" INOP- MRF-76-798 7/14/76 00-08' I 8 1

(20) Val. MD-1001-29B (04)

. leaking weld i

6/20/77 1600 RilR valve i,0V-1001-16A I.ER-77-24 6/21/77 0100 - 9 -

Faulty operation MR-77-1941 j-

, 10/11/T) 0958 RilR valve MO-1001-28A PIR-77-2816 10/12/77 1620 1 6 22 -

.* No control from panel .

11903 g ,

l i 1/11/78 0400 MOV-1001-18n MR-77-3053-Not 2/5/78 0900 25 4 - .

Motor operator burned I.oca t ed I.ER-7 7-0 39* -

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  • e s
b.) b. l b.) b. .) b.l l. bl. '

fJJ$  !  !  ! 1- 1 l =l i.r l E'~1 U1 I' I F l t1

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Talelo e SilMMARY OF RCCH OllTAUR!I FOR rilAIRIM NTA1NIN 1 8

Splem i RilR Cystem: (1.PCI Syst erit anil Containment Cool ing ifovie) . -

, t ETMIR 7 ELRElYA-. -RIRIURRIL . 11M R.IN, RFFRCT }'

DATR 11MR INITIATING COMill110M COMMRH1H DA1 R lin d _IIAIN ilRS. liiC' u

'l/19/78 0324 LPCI-1.oop "It" Testable ifR-7 7- 3114 1/31/78 2100 12 .17 36 ,

. Check-1.onking glanil l

3/5/78 1800 RilR 710-1001-368 will FfR 78-641 3/6/78 0900 -

15 - I  !

I

' 1 not close 3/7/78 0030 RilR-110-1001-36A Ilroken 11R-78-441 3/8/78 1800 1 17 30 I101tl Down iloi t s a t I'lange l l

4/30/78 0602 RIIR Valve Pto-1001-36A flR-78-981 5/4/78 2000 4 13 58 8 l

5/4/78 0615 RIIR Testable check ttR-78-99 5/4/78 2000 -

13 45 .

j

6/ 5/ 7'8 - 0606 RIIR valve 7t0-1001-288 F1R-78-1347 6'/6/78
  • 1645' 1 10 45 i Ffotor operator l eaks }

6/6/78 1644 RilR valve 110-1001-298 MR-78-1348 6/6/78 1650 - -

6 f.

Packing leak I

l i l RIIR valve if0-1001-29A 11R-78-1349 6/19/78 1410 55 i,I 6/19/78 0615 - 7

' Packing leak -

g i

1/17/79 1056 "D" RilR Pump Changeil t1R-79-2684 1/17/79 1508 - 4 12 ., t oil in top bearing l- l 1/17/79 0800 "A" & "C" RilR Pump ttR-79-2685 , 1/It7/79 1250 - 4 50 ,

change <1 oil in top EfR-79-2686 '

i bearing  !

i 9 . -

i I

  • m
'(. ,)

_ b.) b[.) b. b:] b- bf fbE)  ! ] I~ 1 l 1l brl C'l T.! LI l J tC J i

e 4

l-I' i i Toble

SUMMARY

OF RCCH OUTAURS FOR Fil.URIM IFTATION Spte's ! RIIR System (1.PCI System'and Containment Cool 1%g Motle). ,

i 1 .OUTAGAJEf1GT1Y L RmrrvRan 11ua IM RFFRCT j DATR T1MR IMIT1AT1MO CONDil10M COMMMM13 DATR ifdR DAYi ~IiRC ~MiC

~

'5/4/79 2315 "A" loop RllR-INOP to MR-79-906 5/5/79 0400 - 4 45  ;

l i repair head spray line ,

! 6/17/79 1154 "B" Containment Cooling 6/19/79 0900 1 21 6 Loop-INOP I

' ij 6/27/79 1530 RilR Valve-MO-1001-36A MR-79-1492 6/27/79 2145 - 6 15 BKR Tripped-investigatt LER-79-028 I

7/25/79 0158 RilR Valve MO-1001-36B ~ MR-79-1683 7/25/79 1345 -

11 47 i I

Key sheared on stem

- c l 9/11/79 0835 RilR Pumps A & C-INOP 9/11/79 1453 - 6 18 .

Iow disch. Press. .

9/19/79 0216 LPCI loop "B" INOP to MR-79-2085 9/19/79- 0700"

  • 4 44 i repair MO-1001-36B LER-79-037 10/2/79 0800 RilR Valve MO-1001-36B 'fR-79-2099 10/2/79 2140 -

13 40 (LPCI) INOP for PDCR '

79-19 .

10/6/79 0'700 "A" loop Cont. Cool 10/6/79 1446 -

7 46-

INOP-MO-1001-36A & B -

q 10/6/79 0730 RilR Valve MO-1001-36A MR-79-20 10/6/79 a445 -

7 16

[ *.

INOP for PDCR . l 10/16/79' 2130 "B" cont. Cooling loop 79-02 10/17/79 1545 -

18 15 INOP 79-14 LER-79-039

  • u l

. s t .

l g .  !

=aW '

C F1 F:] O l.'l EB US IB f l F1 1 li :) iF l LJl [ "I fi'..I L l F..I k~ 1 I

Telde StfMMARY OF RC(3 OUTAORN FOR Pil/1MIM KTA110N Mystem i Reactor Core Isolation Cooling (RCIC) System ,

_QVIMlU FLEGIltB" RIFIORRI) TIMR IN RFFMCT DATR 11MR INI11AYlMO CONDt110H COMMENTH DA1R 11MR DAfs Hits. hic.

5/29/75 1730 RCIC Valve Pto-1301-17 U0-75-12 6/2/75 2020 4 2 50  ;

Inoperable 6/8/75 0245 RCIC Turbine trip-stop Uo-75-14 6/8/75 0345 -

1 -

Valve trip 3 times j g

i 3/12/75 0300 RCIC-Steam flow sensor U0-75-20 8/12/75 2125 -

18 25 l'-

malfunction l 8/13/75 1505 Signal converter 8/11/75 1845 -

3 40 g

8/14/75 1500 t!o speed control-RCIC Uo-75-21 8/20/75 1330 5 22 3 6/2/J6 00-08 RCIC valves Pto-1301-25 11R-76-610 6/2/76 08-16 - 8 -

, (04) and 26 inoperable '

i (12)'

1/20/77 08-16 RCIC-INOP for maint. 1/21/77 1725 1 5 25 (12) ,

1/28/77 2l00 RCIC valve F10-1301-16 i Unit S/D for maini 1/30/77 1130 1 14 30 i

Inboard ISO valve Pfwo-76-1473Fi j ttR-77-150 ,

) .

2/1/77 0230 RCIC Valve 1301-16 PfR-77-409 2/1/77 2045 -- 18 15 ,

llPCI valve 2301-4 g*

packing Icaks , l 5/2/77 0900 1!PCI & RCIC isolated t< 5/2/77 1300 0 4 -

work drain line in condenser bay ,

e .

i j

, b7) k".) b l b3 I.b  ! l  ! l '

1 i  ! i .' l LTl r'l LI J tA s

Telete

SUMMARY

OF RCCfl UllTAOHN F'#R rilAIRIM NTATION ET 'I" ' '

8 Reactor Crire Isolation Cooling (RCILf System ,

JETMLEJrfH_MR_ HIWlVR RI) 11MR IN RFFRUT DATR 11MR INFI1ATING CONDfT10N COMMRN18 HAIR ~ ~ 11M R Dais ~iifti- ~BiiC 2/16/78 0700 RCIC INOP leak on viv P1R-78-477 2/17/78 1400 1 7 - a

. F10 1301-17 ,

I 5/3/78 0942 RCIC valve Ato-1301-16 P1R-78-ll34 5/6/78 1005 3 0 23  !

packing Ienk  !

8/14/78 0650 RCIC-INOP change oil in MR-78-1901 8/15/78 1830 1 13 40 turlilne & check ffIter 9/11/78 0629 RCIC-INOP to repack P1F-78-2113 9/12/78 1930 1 13 1 MO-1301-17 9/18/78 0145 RCIC-INOP to replace StR-78-2161 9/18/78 1310 -

11 25 -

t Rupture Disc P509 11/16[78 0700' RCIC-INOP Turbine stop MR-78-2756 11 l'7/78

1 3 3 valve malfunction 12/21/78 0700 IIPCI-RCIC-INOP to repair MR-78-2188 12/21/78 2036 -

13 36 leak on drain line , ,

. 12/22/78 0900 IIPCI/RCIC-TNOP to repali ffR-78-2188 12/22/78 1320 - 4 20 I leak on drain line ,

1/18/79 1901 RCIC-INOP valve 1301-34 MR-79-94 1 / 151/ 7 9 1910 -

10 9

2/12/79 1358 RCIC-isolated , 2/12/79 1449 .- -

51  ;

2/14/79 0907 IIPCI/RCIC-INOP to repal1 MR-79-207 2/15/79 0930 1 - 22 drain line leak . t 8  ! i i

e v

!") b~.! bu f b b'N I1 I T "l b=l krl b "l b fe~.1 ~]

I Tetele  : SilMMARY OF RCCH OtfTAGRN FOR I'llAIRIM NTA110H Bystem Ip , tor Core isolation C6ollng (RCIC) System./ (&f1(CLJ .

_QETMl_IUlff_RCTILII_ nH!rTORRD TlMR IN RFFRCT IIATR 'I1M R INmATINtl CONDm0N COMMRN1B D555~ llMR DAT5~ iiN5.-~MiC '

3/8/79 0645 RCIC-INOP to repack ffR-79-323 3/9/79 2145 1 15 - -

. MO-1301-17 -

I  !

4/15/79 2305 RCIC-INOP to investI- ffR-79-775 4/16/79 0900 - 9 55  ! i I

, gate pump trip (gland II:R-79-015 cond p )

' {

p t 7/17/.79 0500 RCIC-Testable check *!!R 162 3 7/18/79 0200- -

21 valve INOP i

8/17/79 2020 RCIC-Valve An-35-Body ~

MR-79-1859 8/20/79 1101 2 14 41

,- to Bonnet leak i 7/23/76 1345 "A" loop RBCOf Valve URP-76-962 7/23/76 1545 -

2 -

if0-4060A RBCGi inlet to "A" RilR lleat exchanger

  • INOP to correct abnorma I switch operation i

1/10/77 1300 "A" RBC04 pump-INOP t o , MR-77-25 1/13/77 1445 3 1 45  ; [

check seal -

. *i

'i 4/6/77 0345 "E" RBC01 pump-INOP to ifR-77-lOl6 4/7/77 1100 1 7 15 ..

replace overload re'i.;y ,

L 4/20/77 0756 "B" RBCCtllleat exchange - PfR-77-1182 4/21/77 1315 1 5 19 }

INOP to inspect imekwas i  !

valven-SS11 to "B" heat , i exchanger sectired ,

i f ,

h

. . . 1 a

l

) . _f k .. b.  : f.f I 1  ! 1- 1 l r1 ['l J L I Fl f l ,

I

' * ' 8 Table SUMM ARY OF RCCS OUTAURS FOR FIIAIRIE NI"ATION .

Splem i Reactor finilding Closed' Cooling flater (RBCCH) Sysrem -4 SSW hh ,

_QVJARU EFRcIlYA _ _ _RlWTU R RI).. _ TIMR IN _RFFRCT DATR 11MR INITIATING CONDri10M COMMRN1B HA1 R llMR IIAIS HRS. telH.

5/1/77 0600 "B" RBCOI heat exchancer 'IR-7 7-I T16 5/2/77 0700 1 1 - .

isolated for maint. , ,

l 5/1/77 0430 "A" RBCOJ heat exchange? !1R 113 5 5/5/77 0400 1 2 's '30  ! ,

isolated for maint.  !  !

: 1 1/3/78 0610 "D" RBCCW pump-INOP to 'tR-7 7-2967 1/9/78 1148 6 5 3P  !

replace mechanical seal Unit: on line i i  :

7/10/78 0111 "B" Salt Service 1I 3 0 f1R-- 78-1688 7/12/78 2130 2 18 19 i I1 loop-INOP to work ' MR-78-1718 ,

e- RBCOJ TBC01 heat * '

exchanger 6/18/7,9 0600 "B" RBCCW licat exchangei MR-79-1370 6/J9/79 1840 1 12 40 TNOP to replace head PfR-79-1268 ,

gaskets and clean  ;

i 10/1/79 1840 "B" I,oop Cont. Cool- 79-02 10/6/79 0200 4 7 20, 6 i

INOP "B" I,oop RBC01 6 79-14  ;

"B" loop SSU Not seismi< I,ER-79-016 . .

}

i

  • qualified. __

I i

7/8/75 0630 "C" Salt service water 7/8/75 1900 -

12 30 1; Pump .

f '

"B" Salt service water 7/9/75 1800 -

23 - l .

7/8/75 1900 Pump .

3 7/24/75 0130 "n" salt service water 110-75-18 7/25/75 2120 1 19 50 shaft uncoupled -

g I a i e

, (.) Il b) I.. .! b] b) ( b'] I i -

4

SUMMARY

OF RCCH OUTAURN FOR rilA1 RIM NTATION Table -

. Mystem i Salt Service Water System RitNTURRD TIMR IN RFFRUT ,

_QRTAGA .RtLRC11VR D5iR~ ilMR IIlf5' ~II55.~ liC DATR 11MR INFI1 A11MO CONDri10N COMMRHill t

8/28/75 1930 "E" salt service water MR-75-1012 R/10/75 0630 1 11 -

l, pump shaft disconnedted 110-75-23 -

URP-75-609 9/26/75 16-20 I 22 14 l l 9/4/75 0600 "E" salt service sater -

1 , maintenance (20) l l .

"C" salt service water 9/16/75 2150 2 21 05 9/14/75 0045 pump-broken shaft l l l 9/22/75 16-24 "C" Pump tagged out 9/29/75 08-16 6 16 -

j (20) Motor moved to "E"(SSW) (12) 0850 "C" e,ervi':e water URP-75-813 11/11/75 1115 -

2 25 11/11/75 sa l t- ,

TNOP fot repacking ,

"C" salt service unte- MR-75-1300 12/8/75 1445 27 8 -

, 11/12/75. 0645; 4 ' TNOP-vibration "D" salt service water 12/27/75 1430 18 23 20 12/8/75 1510 ,

INOP due to severed  !

gland bolt , ,

i 12/24/75 0430 "A" sait service water 1/22/76 1930 29 15 -

Pump-TNOP, excess vibrn.

6/11/76 16-24 "B" salt service water 6/23/76 08-16 11 16 -

~

l (20) pump INOP for modifica- (12) tion ,

= .

08-16 "D" 8/9/76 0345 3 15 45 8/5/76 111rh vibration Punp 1isted on (12) Salt service if 0 .hil y monthly rept. ,

l 2 I t ,

e i

i

.m __,

[ ~'l I" ! F J O i J:1 El UR I..El I  !  ! ~ ~) 1 I; il it I L 'l (l L. 1 L.) I.J lel I

Table e

SUMMARY

OF RCCR OUTAOlcl FOR l'IIAIRIM frTA110H Rystem I Salt Service Water System ,

- -R_H810 R ED . T

_QMIA!LILEF_DtJ1TlYE._. -

IPA13

_lMEIH,_RFFRUTMC

-18H8.

DATR I 11MR IMH1 ATINO CONDITION CO'4 M RH11t DA1H llMR 10/3/76 0614 Excessive packinr. leak: WRP-76-1 2 10/10/76 1735 27 11 1 vibration, noise, "n"

  • 190-76-1152 salt service 11 0 2

MR-76-1286 -

1,l'R- 7 6-02 81, l l

10/26/76 1700 "A" salt service !!2 0 I.ER-7 6-02 91. JO/10/76 1735 4 -

35 ,

hold etown bolts broken URP-76-Il52

12 30 (04) INOP-excess vibration

1/6/77 00-08 "E" salt service II2 0 1/7/77 1445 1 10 45 ,

(04) INOP for maintenance I/10/77 , 0900. "C" salt service II 2) 1/28/77 1644 18 7 44

, INOP for maintenance .

2/3/77 08-16 "D" salt service water 'tR-7 7-4 30 3/2/77 1005 26 22 5 (12) Pump $

3/11/77 08-16 "D" SSV pump TNOP 3/11/77 2130 -

9 30 j divers in bav 3/11/77 08-16 "r." = alt service Ily 0 I.ER-7 7-8 / 31, 1/11/77 2130 .- 9 30 ,

(12) pump divers broken valve 7 in. k g

1/18/77 0600 "A" salt service !! 0 2

1/21/77 16-24 -

14 -

pump notor clieck (20) e ,

i e

i, .) ) .I b] h. ($ . f t.' . I1 1"1 l 1l Fl c"l Ci f I FJ f-e I
Talb NilMM ARY OF RCCN UllTAURN FOR FilAIRIM frTAT10N " '

8 F'I'" 3 Salt Service Water Systhn ,

RitfrTO R RU T1MRIN RFFRCT

_RuTAREJ F_LMM_,_

IMITIATING COMHil10N COMMRHTH IDAT5~ ~~11Mn tiAYi' litsT lisW DATR 11M R "A" salt service 110 MR-77-1274 4/26/77 1425 1 -

25 4'/25/77 1000 2

. loop INOP-Sump clean A pump run from ,

out 1600 to 0700 1 I

"B" salt service 18 2 0 4/28/77 1204 - 1 20 4/28/77 1044 1.oop INOP to take measurements to pumps I

~

"B" salt service 11 20 5/2/77 0400 1 -

30,.

5/1/77 0330 l

~

1.oop isolated-heat , ,

exchanger maint.

8 5/5/77 0210 1 22 - -

5/3/77, 0430 "A" salt service 110 7

  • I,oop isolated for licat ,

i cxchange maint.

MR-77-2030 7/5/77 1930 4 11 30 7/1/77 0800 "B" salt service 110 2 i

Pump INOP-0!! leak , .

32' '

'7/15/77 1028 "n" and "C" salt serv. MR-77-2198 7/15/77 1800 - 7 112 0 pumps - INOP for l anchor bolt test 43 MR-77-3227 2/2/78 1740 13 16 .

1/20/78 0057 "C" salt service 110 2 pump - oil Icaks * ,

3/17/78 1810 4 10 .

3/17/78 1400 "C" salt service 110 2 MR-78-740 -

INOP-breaker failure I.ER-? B-O l l t, ,

, i ,

I

bb lf (Ib fb I ) I1 ) lr Il ItT) b b'l h3 fe . ! .) fa

. b ') l l I

Table SilMM ARY OF RCCR UllTAOIO3 FOR l'Il/1 RIM frTAT10M M'*l " I Salt Service Water Fvst6m n_IwTORan _ 11 9UMLILI F_EREDYA_ UATR 11M R __IIK IS _asaIllR.

_In ErrRcrblH.

UATR 11MR INIT1AT1MO CONDfl10M COMMMMT5 3/19/78 0000 "D" salt service II2 0 IIR-78-742 4/4/78 1300 16 13 -

l ,

IN0p-hearing failure 6/6/78 2030 "D" salt service 1I2 0 MR-78-1434 6/21/78 0930 14 16 -

l pump-IN0p-excess l vibration  ;,

7/12/78 2345 "E" salt service !! 2 0 final repairs made 7/11/78 0238 - 2 53 pump-falled vent valve i 11/78 under MR- l 78 ~752 g 9/25/78 0808 "A"  : nit service II2 0 MR-78-2243 9/25/78 1111 - 3 3 .-

' IN0p to repair vent ,

valvo 11/7/78, 0700; "E" salt service 110 2

?tR-78-1752 II/8/7p . 1317 1 6 17

. pump-IN0p to replace temp repairs with approved parts 2/2/79 0345 "E" salt service 1I2 0 i F1R 19 3 2/23/79 1700 21 13 15 pump-IN0p-fligh g vibratton ,

2/24/79 1030 "E" sa l t serv ic e 1I 70 IIR-79-344 2/24/79 1200 -

1 30 ,

pump'IN0p-breaker problem ,

[' l 4/19/79 1600 "D" salt service 110 2 MR-79-739 5/3/79 1015 13 18 15 -

pump-IN0p to replace MR-74-247 check valve 4 repair  :

Innkino unne ,

3

[ .) l } b ...I { .! f .) lG1 b3 f. 'J.1 f 1  ! 1 1 l l iF l LTl r"l U- L-) "J
  • fJl I

Table e

SUMMARY

OF RCCfl OllTAURN FOR PilAIREM ltTATION

. pplem i Salt Service Water System ,

_Q4TMUU r.IE71 tit n_itsTORRn TIMR in arrRcT HATR 11MR IHr!1A11MU COMI)ti10H COMMRN1H D_A1R llMR DAIS 19 R8. iiiC i

6/18/79 0500 "n" loop salt service. MR-79-1360 6/18/79 0800 -

3 - ' '

!!2 0 INOP to install frying pan 6/19/79 0800 "n" loop sal t service MR-79-1406 ,6/20/79 1400 1 6 -

l 112 0 loop-INOP to remove e

frying pan 6/21/79 0640 "A" salt service 1I2 0 MR-79-890 7/7/79 1015 16 4 15 f pump-TNOP noisy MR-79-1435

. repair check valve .

0'

, 8/17/79 0729 "B" salt service 110 2 MR-79-1848 8/29/79 2020 13 12 51 piimp-reverse rotatton i 10/15/79 174d "A" salt service 110 2 MR-79-2301 10/22/79 1611 - 6 22 31 Imop-INOP to clean returned to serv.

pump bay 10/18/79 ,

10/17/79 2025 "E" salt service II2 0 i See MR-79-2301 10/18/79 0330 . 7 5 , ,

pump-INOP shells  ;

clogged in pump ,

10/25/79 1110 "A" salt service 182 0 MR-79-?350 10/25/79 1415 -

3 5 ,

pump-1NOP to flx g g vacuum breaker , l 10/29/79 0710 "C" salt service 110 2 MR-79-2178 11/8/79 0856 10 1 46 pump INOP-NoIne fnul ty MR-79-2116

s I .

e I

s

~

, k. . 1 F T.i E. ~.I

. [.7 E.1 (iil 0 91 l' !  ! ~1 " l I; l it 'l El f 'l L.:~ 3 f, .1 f ~ ~.1 El

! i I

Table e SUMM ARY OF RCCR UUTAUPS FOR FIBAIRIM NTATION 8 8 P"I Em erg ency Diesel Generat6rs a sso sgJg

' 8 .

RMN10RRU TIME IN RFFR(,T

_QVIAtllu!F_F_R G YR_.

DATR 11MR IMl11ATING COHpti10N COMMMNTS H555~ ~ilMR llAY5 I~iiR5. iii C i

i 0944 "C" salt service 110 MR-79-2522 11/23/79 1845 15 9 1 11/8/79 2 l ,

pump-ItJ0P-after main. .

high vibration t e

' 2048 "C" MR-79-2635 11/27/79 2218 - 1 30 j 11/27/79 salt service 112 0 pump-I10P to fix valve ,

leak 0645 "B" 6/18/75 1940 1 12 55 6/17/75 diesel-IrioP l for maintenance g ,

0615' "A" 6/23/75 2000 0 13 45.-

,. 6/23/75 d iesel-Ittor for milntenance ,

6/26/75 0020 0 12 35 6/25/75

  • 1145 "n" diesel-Irior

. for maintenance .

7/1/75 00-08 "n" diesel tanned out 7/1/75 16-24 -

16 -

(04) for elect. maint. (20) 4 45 I 7/24/75 1630 "A" diesel generator ' WRP-75-534 7/24/75 2115 .

faulty starting conp. ,

12/18/75 1448 - 4 18 .

12/18/75 1030 "n" diesel Irior faulty turbo-assist ,

valves i

1/23/76 unknown "n" diesel gen. failed 1/27/76 00-08 5* - -

to operate properly l i

. e ,

  • cstimate i

I '

L.) b. '

b.

) k I s-i Tetite s 5tfMMARY OF RCCS UUTAtlRS FOR FilAIRIM KTA110M -

System : Dnergency Diesel Generators HilfrION RIl 11MK IN RFFHUT _

JM @Cilyg 11MR IHrt1AT1MU CONDt110H COM M RH18 liA1 R llMR IIATS IIRA. MM.

DATE

'7/6/76 16-24 "B" diesel air comp HR-76-749 (20) INOP-faulty unloader i valves ,

8/19/76 2200 4 18 -

8/15/76 00-08 "B" diesel-starting MR't- 7 6-99 7 l

(04) air comp-00C-faulty relief valve URP-76-1065 9/23/76 1800 6 15 0

. 9/23/76 0300 "A" diesel INOP '

exhause bellows blown MR-76-1209 I.ER- 76-2 5 / li. ,

ifR-76-1228 9/25/76 0145 3 30 "B" diesel INOP crank-9/24/76 2215 i case exhaust failure MWO-76-1325M l ,

. alarm WRP-76-il95 11/18/76 2120 -

11 20 11/18/76 1000 "B" diesel INOP ruptured exhause MWO-76-1521M bellows MR-76-1550 ,

, I.ER-76-0 311.

12/2/76 1100 4 30 "R" diesel INOP for

'12/2/76 0630 maintenance 12/2/76 1845 -

5 45 -

5 12/2/76 1300 "A" diesel INOP for l maintenance j i

2l00 "B" diesel INOP replace i Unit S/D for maint 1/31/77 M / M -i '

1/28/77 prelube pump "O" rings (20) g y3 i

, 8 .

l t

, [.) l . .I .] .

h.. Ik b i 1

Table

SUMMARY

OF RCCR OllTAORM FOR Fila 1 RIM KTA110N splem i Fnergency Diesel Generators .

_QETNUUlF_F.__ R QltR_, M_flfrMRRil_ _ TIHR.IN RF_FRCT IIATR TIMR INITIA11NO CONI 4110N COMMRH18 il A1 R 'I BM R IIAva lina. MC t

12/29/77 1140 "A" diesel-belt to fuel MR-77-3450 12/29/77 1410 '

2 50 oil pump broken I

, 3/16/78 OA-16 "A" diesel generator 1/16/78 16-24 - 8 - j (12) INOP to replace belt on (20) -

F.O. pump 4/3/78 1500 "A" diesel generator 4/3/78 1520 0 0 20 l

faulty agastat ,

4/27/78 1300. "A" diesel generator MR-78-1102 4/27/78 1600 0 3 .-

INOP for maintenance ,

4 5/6/78 "A" diesel INOP for fan MR-78-1087 5/8/78 1400 i'2 - -

, inspection MR-78-1002 .

5/17/78 0800 "B" diesel generator MR-78-1262 5/18/78 2030 1 12 30 Governor manftilction ,

t 6/8/78 1345 "n" diesel-INOP i MR-78-1488 6/8/78 1500 -

1 15 . ,

rest run ,

4 6/29/78 1630 "B" diesel TNOP to MR-78-1622 6/29/79 2200 -

5 30 .

replace faulty governor ,

8/2/78 1940 "B" diesel generator MR-78-1907 8/4/78 1830 1 22 50 l

INOP for maint. diode II.R-78-0 39 L g '

failure  !

9/20/78 2145 "A" diesel generator MR-78-2222 9/21/78 0320 5 35 .

1Non r.,ni nei i na i-i 8 ,

  • Estimate ,

e l

, . i

, *() Yl

_ ) b (b) I.b'. b]  ! '

  • Table  : SUMMART OF RCCH OtfTAHlul FOR Fila 1 RIM NTAT10N system 8 Dnergency Diesel Generat' ors "

n wivRau TIMs it; ur rner

.__DmlAJ FF5(7T1YA__ DAIR~ ilMR DAT5 dIFdT ' ~iiiC i DATR TIMR INfT1ATING CONDIl10N COMMRH1B 10/11/78 1916 "n" diesel-INOP ffR-78-2384 10/27/78 1700 15 21 44 l -

a faulty windings MR-78-2395 -

rewind-repair core MR-78-2416 I i replace & adjust itR-78-2460  !

governor MR-78-2486 .  !, '

PfR-78-2585 l 12/28/78 1045' "A" diesel generator  ?!R-78-2994 12/28/78 1230 -

1 45' g INOP to change oil in t governor l i- 2/26/79 0820' "A" d iesel-INOP to MR-79-329 2/26/79 1033 -

2 13 change oil in go'rernor 3/7/79 0700 MR-79-414 3/7/79 45

=

"A" diesel generr. tor 1845 .. 11 INOP to replace governoi ,

j 4/19/79 0158 "n" diesel-ItinP ttR-79-792 4/19/79 0706' -

5 8

governor problems ,

5/16/79 "B" diesel generator 5/18/79 0945 MR-79-889 1530 2 5 45 -

INOP to tighten drafn MR-79-1026 3 4 cocks & reconnect broken prelube pump lea. ,

l f 10/9/79 0608 "n" diesel-INOP to MR-cancel 1ed 10-9-79 1000 -

3 52 I H

- check frequency -

oscillations .

- e i

i I .

~

i

i 5
  • . , ' l' ' 1

, '~

,

  • f k 4 i l
1 t

+ k!.

. *

  • f $ ' t I 9 $$ - i-1! , ,i!1  ; liIl s'

! i b- - .

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II.K.3.22 Autoswitchover of RCIC l

PNPS has reviewed and revised the following operatina procedures to ensure that clear and cogent procedures exist for the manual switchover of the RCIC system suction from the condensate storage tank to the suppression pool:

5.3.5 Loss of AC Power 5.3.10 Loss of All Feedwater 5.3.15 Reactor Isolation without Scram or loss of offsite power l

= __ - - - _ _ _ -

. II.K.3.15 Modify Break Detection Logic to Prevent Sourious Isolation of HPCI and RCIC As comitted in our letter dated December 15, 1981, Boston Edison shall complete implementation of this requirement by July 1, 1981.

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II.K.3.27 Provide Common Reference Level for Vessel Level Instrumentation Boston Edison is evaluating the different reference points of the various reactor vessel water level instruments and shall provide a common reference point by July 1, 1981.

.

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