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. ** OPEllAllNG DATA 1;l:1 Ol;T

..

_50 293DOC:'IT t.'O.0/-[79._9DA1E

COMPl.EJ ED !sY C.M.CaffneyTEl.11 IlONr 617-746-7900

O!'l RYl!NG C.T i'll3*

P il grit,. 1 Notes1. Unit tu, me-

2. Repoi:iig Pt riint- J"IV, l979_

I998*3.1.icensed l lw ux.! Pm.tr (MWt )-678*1. Namept u e I:a:ing, a % ot, M','ic)-

' 655.S. De im. Eb tric.d 1;:t;.1::(Nct MWe):690*

6. M .w i m u m 11. p.c u d. le Cap uty (Gro s MWe): ..7. Maxitamn D. ; .nl.'d.' Capacit y (V t MW'e). 670.

S. If Ch..ngs Occer in Capacity Rations (Irems Numhr 3 Throer.h 7) Since !.ast !!crort. Give Reasons:NONF.

-- _.

9. Pmwr Level To Wh% Retrie:a!,if Any (Net MWe).NONEN/A-10. I'raums For I:n:::ct.ons. If Any-

- ._.

_ . . . . . - -

This Month Yr.-to Date C o m u!.n h .'

<. 744.0 5087.0 58223.011. Ilour< la Repo: ting i,inad

12. Nma!,cr Of !!ours Riactor Was Critic.il _4.R7 4?2_ E 6 4133L 10.0 0.0 0.013.1:cactor Rewne shuidowa llours

11. Itours Generat a On.I.ine 465.2 4220.5 39941115. Unit Reserve Sherdown lir,urs 0.0 00 Om0.__1

16. Gross Thernn! Ecot y Ginei.,ted (MWH) 821184.0 813_9.254. 0 .665 B l.06 /u017. Gross Ilectrical Ener; y Generated (MWil) ') 7 0 l '> n _ n _ . . _ . 2 794 5 50_.f .2192502/n . _o18. Net Electrical Ener :y Generated f MWII) 268216.0 2688603.0 21050167.019. Unit Senice l' actor 62.5 83.0 68.6

20. Unit Av::iiability f actor 62.5 83.0 68.621. Unit Capacity factor (thing MDC Net) 53.B_ 78.9 54.J)22. Unit Capacity Encter (th.in,q I)ER Net) 55.0 80.7 55.2

_

23. Ui.i; FoiccJ Outace Rate 0.0 ILS 10.8

24. Shurdm.ns '.chedi.leil Over Nest 6 Months (Type. Date, and Ducatha of Each t:

NONE

25. If Shnt D.re.n At End Of Reimrt Period. Estime.ted D.de of St.utop: UNIT OPERATING

2t>. Units in Tc:.t St.uus (Poor to Connuercial Operation s: Forceast Achiesed,

.

INIT IA!. 01:1T:CA1.1TY

INil l A l. f.l.!X.1 RICI TY_

-

CO'.lMI:ltCI A L Ol' fit A T:ON

f-) . - r;. -

G ?. .m.nip/71

47 90p0023 '

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AVEl:AGL I).sil.Y UNI 1 ohEl LEVEL

.

DOCl:ET NO. 50-293

PILCRIM Ig, '! Ts

DATE

*"" " '"COMPLET ED 11Y

TELEPif 0NE 6!7-746-7900

,y o,;3 i j JULY, 1979

DAY AVER.\G E D ^.!!." POWE!! 1.EVEL DAY AVEI: ACE D \lLY PO%Eli LEVEL(Mh -Net) gsp., c.g gI 664

1, 12-

2 665. 459.I b.

3 664..

39 _

605.4 665. 598.

- 20-

S I' f> 2 . 213., I-

6 662. 433.,,..

7 658. 603.'3 -

~ 57.8 __

,4 589.9 240. 624.

.

10 558.3 662. -'

11 206. 28.g,

12 0.C'

28j

13 0. 0.29

14 0. 108.30__

15 O. 541.3 _

16 0.

INSIT!UCTIONS

On tha fermat. int the ne s da:h um:the nearest wncle m: rsait. p.mer lese! in \lwe. Net for es:h day in the reportin: month. Compu'e to-

; -

|4 877 )

1 , , ,

... . . . . , .

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t'c ::z ' *,

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' UNIT S!!UTDOWNS AND l'OWER REDUCTICNS DCCL'FT NO. 50-293U? II N.J:; PILGRIM I

n a,7; 8/9/ B-

R EEC.'!T ?.:ONTri JULY. 1979 CC"I't.E T Ei: :;Y C.M. c.Ar t:,EY

;I . I l';.< ,e 617-746-7900

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Tn3e EF -. eiIICC"5CC E *t E'''u C m e w, ( cirettr.c

N. .. Ibte - '5, E E '. :E 4_.''- -u o o n

, _c 2x Ivent :y S. ? ^ ' " ' ' " ' "' . ::- .--

| g .=a50 e 35= Rc;m:t : 20 N0 I,rae:a i;cturrcr,e

- a d-

c

6 7/8/79 F 28.2 B _ 79-2/3L-0 CD VALVEX LEAK IN HYDRAULIC SYSTEM ON MSIV.*

LEAK REPAIRED.

7 7/10/79' S 0.0 B 4 MAIN CONDENSER BACKWASH

8 7/11/79 F 15 3.6 B 2 79-21/1T-0 R3 PIPEXX LEAK IN CRL PITURN LINE WELD.

9 7/21/79 F 11.5 H 3 REACTOR SCRA'O'ED LCSS OF VACUUM DURINGCCNDENSER E ACD' ASH.

.

10 7/27/79 F 85.5 B 3 79-27/1T-0 CD VALVEX REACTOR SCRA'O'ED FROM LOSS OF OFF-SITE POWER. MS RELIEF VALVECYCLED AUTOMATICALLY, VALVES WEREFIPLACED.

.

Ir*j.5 3 2 -

3 4F: F.u s ed Re.non : M e t h od . C drbit G Instinctiens* ' S. S !ncdufeil A.E luipinent F.:iture (Exp!.iin) ! .'.f a n ail t'rISep.<:a.'n a o: D.c aT- !! .',1.::ntenanse of Test N.N u il Scram i - o Sn. :s te t :.emce!j C Refe. ;ng .i- A i:o n aine St r.nn. . * .c : i!iRii: .- ( Nt ! R EG-

1) !{c;i !.: tory Restriction 4 0:h.ri:a;lun) :i<-

! O ier.itor Tr.inung ? 1.icense Ew:'ina: ion -s

I-AJunne.tratr.. 5G U; c r.st:o:ial !.i ror ( E x;,l.i:n ) i s! .b. 1 - S.nne Saa ce

(9/77) iI Ot!ier (thplaa.).

.

_

PILGRIM NUCLEAR FCNER STATION Men t'n JULY' 1979_ MAJOR SAFETY V' ATED ''i!':TT' .;5CE

TSTE'? CC:OCNENT MALFUNCTION CAUSE | MAINTENA::CE CC EECTI'JE ACTICN. l <SSe .,.--,.

~ >-, . , . , . , - - - - . . - - _ , . < - . " - - - *

_,,

29 Check Valve Leaks errosica of Renew seat 5 disc Disc ruterial changed frco niresis t to S.S.seat 6 disc .

.

_

29 Service water Excessive vibration Worn bearing:- Renew bearings & N/Apump pump bowl.

|3 Piping Weld Leak Crack Renew section of N/Apiping.

f,

10 Pipe Support Design Deficiency Engineering Modified support N/ADesigri

i

f

23 ' Pipe Support Design Deficiency Engineer /ng Modified, support N/A. Desigt.

'!

10 MOV-1001-36B Key on valve shaftReplaced key and reset limitsSheared

t ,

a1 "D" Relief V1v. Pilot Leakage Dirt crud Installed new Procure new top vorksq - B' Line'

valves rebuild *<

(1 "A" Relief V1v. Pilot Leakage dirt crud sp::rer - rebuild Procure new top works

' l*

' 'A' Line'

; :. 4 ||

I'

13 RCIC testable Leaking packing Furnanited gland Repack during future outage.check valve: '..

_ _ _ . . - . . .6

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REFUEhl!!G II:r0H!!ATIO!!

.

** The following refueling information is included in the Hont hly Report asrequested in a letter to !!r. G. C. Andonnini datid January 18, 1978.

For your convenience, the inforraation supplied h.u been enumerated so t hateach number corresponds to equivalent notation utilized in the request.

1. The name of thic facility is pilgrim !!uclear Power Station, Docket !!o . 50-293.

2. Scheduled date for next Refueling Shutdeun: January 1980.

3. Scheduled date for restart follc, wing refuel ing: April 1980.

4.

5. Due to their ninflarity, r equ e s t 4, 5 6 6 are responded to collectively.

6. The fuel, which is presently expected to he loaded during the next scheduledshutdown, nay he reloaded fuel of a new design and may t herefore require aproposed license submittal and technical <.pecification change. It D notpossible, however, to t.uppl: pertinent information on dates. As inf or:n t ion

concerning fuel denign, core confip,uration, Op e ra t. i o n a l heview Cox.itteedeteroinations, proposed licensing action, and technical specificationsubmittals become available, it will he forwarded to you.

7. (a) There are 580 fuel assemblies in the core.

(h) There are 580 fuel assemblics in the spent fuel pool.

8. (a) The station is presently licem ed to store 2320 spent fuel assemblies.The actual spent fur 1 storage capacity is 1170 fuel assemblies and newhigh density fuel st orage racks are in the process of being installed.

(h) The planned spent fuel storage capacity is 2320 fuel assemblies.

9. With present spent fuel in storage, the spent fuel pool now has the capacit.yto acconmodate an additional 580 fuel assemblics (one core).

.

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BOST0*/ EDIS0!! C0!!PA!1Y

PI1,GUit! NITCI EAR POWI:n STATIO1; ,

Sunmary of Opera _tions for Ju1L 1979

Unit operated at 100% power unt il Juiy 8 when power was reduced for a condenserbackwaeb. Uhile the unit van at re6'oced power tining of the 11SIV's was con-ducted and "D" tiSIV failed to meet an acceptahic time as per Technical

Spec i f i ca t ionn . A decision wan made to take the unit off the line, de-inertthe drywel1 and rejair the !;SlV. The iepair tutned out to be a leaking

i'ne. The unit van returned to nervice at 0915 on July 9 and w :ilebvdraulic a

pour wiu, being increa:;ed, 1-3 water box fouled and a leak was discovered inthe CRD reiurn line. A decinion van nade on July 11 to renove tie unit Iron

nervice and repair the CR0 return line. The unit van renoved f r on seuj re

at 1132 1.rn, on .luly 11 and repairr were initiated. The repair: were cospletedand the t.n f t- was returned to nervice at 2110 on July 17. The 1-3 water boxremained fouled and a reduct ion was set. to clean the water boxen and theintake piping. During the reduction a nerar. wts experienced f r:m low vacuumat 1313 on .luly 21. The unit was returned to service at 0035 on July 22.1-3 ua ter lax van s t ill f ouled so the condenser was again bacLwashed on July24. An eni W od bac1 wash had to be conducted again on July 25, due to ex-

cessive feuling of 1-3 wa re . box. A reactor scran was experitoced at 0101 on

July 27 dee in Int.S of ff-tit. power caused by a lightning strike. "A" and

"D" Relief Valve m1ftactienee and had o be rep]Leed. The unit was brought

My 30 and ob t ained 100% eut put at. 2230 hourt onback on line or 142* <:

July 31.

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