ML19030A340

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Submit Monthly Operating Report for the Month of January 1978 for Salem No. 1
ML19030A340
Person / Time
Site: Salem  
Issue date: 02/15/1978
From: Heller H
Public Service Electric & Gas Co
To:
NRC/IE, Office of Nuclear Reactor Regulation
References
Download: ML19030A340 (16)
v • d • e


Text

PsftG Public Service Electric and Gas Company Salem Generating Station P. 0. Box #168 Hancocks Bridge, New Jersey 08038 February 15, 1978 Director, Office of Inspection and Enforcement

u. S. Nuclear Regulatory Commission WashingtonF D.C.

20555

Dear Sir:

MONTHLY OPERATING REPORT SALEM NO. l DOCKET NO. 50-272 In compl.iance with Section 6.9, Reporting Requirements for the Salem Technical Specifications, 10 copies of the following monthly operating reports for the month of January, 1978 are being sent to you.

Average Daily Unit Power Level Operating Data Report Unit Shutdowns and Power Reductions Major Plant Modification Surnmary of Safety Related Maintenance Operating Suinmary Sincerely yours,

~1!~

H. J. Heller Manager -

Salem Generating Station JMZ:jcm cc:

Mr. Boyce H. Grier (1 Copy)

Director of u. s. NRC Off ice of Inspection and Enforcement Region I 631 Park A.venue King of Prussia, PA 19406 Director, Office of Management Information and Program Control U.S. Nuclear Regulatory Commission Washington, DC 20555

~~~J-hr EJ1fl6Y People 8-l-7.R3 (2 Copies)

~

Aocl ~

I\\ I (10 95-2189 (2M) 10-76

AVERAGE DAILY UNIT PO,LEVEL.

OOCKET NO.

  • 50-212

. UNIT,* Salem No. 1 DATE

. February 15., 1978 COMPLETED. BY J.M. Zupko, Jr.

TELEPHONE 609-365-7000 X507 MONTH January, 1978 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE. DAILY POWER LEVEL

'(MWe-NET)

(MWE-NET) 1 1050 17 119 2

1116 18 884

  • 3 1086

.19 1100.

4 428 20

.. 1089 5

1066 21 1095

/:""'-.,

., 1C,;6 1009 22 1073 7

1082 23 410 8

1042 24 0

9 1066 25 0

(----.........

I j

\\

941 0

10 26 11 23 27 0

12 0

28 0

13 0

29

0.

14 0

30 783 15 0

31.

996 16 0

\\

.,__.,*Pg. 2-16.

. 8.1-7.Rl.

e

.OPERATING DATA REPoRl' **

-1':

OPERATING STATOS l *. unit Nana:.

  • Salem No. 1

. Notes:

2.

Reporting Pericd:_J_an_...uary.....,_......,,,_*.-1~9~7~8~------

3..Lic:e.nsed ~

PQwer (Kit) :

3338

4.

Namapl.a.te Rating (GJ:oss Kiel: *.1135

.------~-

. 5. Design Electrical Rating met ~):.

1090

6. Max:iJmD Dependable capac:iey (Grt;iSS. !fie) :_._11_2;;.;4;_ __
7.

Max:iJmD Dependable i::apilcity (~t !fie) :.__.l....,0... 7.-9 __ _

. J:XX:RET N).:

50-272 DA'.l'E :

February is, 1978 CDMPIZrED BY: J.M. Zupko, JR. *

'TEt.EPHONE:609-365-7000 X507

8. If Changes Occur in capaciey Ratings (Items Nunter 3 ThrcUgh 7) Since Last Report, Gi'le ~:

one

9.

Power Isvel To Which Restricted, If Acy.. (Net me>: __

N""a""'n""e,__ _____________________.

lo.

Reascc.s For Bestrict::ions, If* Acy: _No n_e _______________________ _,__,___

'!his M:lnth..

Year tO Date CUmulat:i.ve ll. HciJrs In Reporting Period 744 744.

5185 l2.

NU!ICer Of Hears P.eact:cr' Was Critical.

496.5 496.5 3039.7 l3.

Reaetor ReseJ:Ve ShutCcwn :Eburs Q

0

14.

Hours Generator On-Line

~:35.S

~:35.5*

28fifi.l l5. unit Reserve Shutdcwn Hours 0

0 0

16.

GJ:oss. 'lllemal Energy Generated(!Hl) 1286153 1286153 7981373

17.

GJ:css El.ectr.i.cal Energy Generated (mB) 439000 439000 2625310 lS *. Net.Elect:l:i.cal Energy GeneratedCWli) 415482 415482 2470657 l9. unit.Se...""'iioe Factor 58.5 s0.s.

55.3

20. unit Availahiliey Factor 58.5 58.5 55.3 2l. unit capacity Factor (Osinq MOC Net) 51.8 51.8.

44.2

22. unit capaci.ey Factor (Osi.nq DER Net) 51.2 51.2 43.7
23. Unit Forced Outage Rate

~l.5 41.,2.

.18.9.

24.

Shutcicwns Scheduled Qver* Next 6 M:::nths (Type, Date, am! Duration of Each) :

None

25. If Shut 0::7.ln At End of Report Period!.Estimated Date of Startup:* ____

N_/_A _____________ _

26. *Units In Test *Status (Prior to camercia.l Operation):

8-1-7.112 Pq. 3-il6 INITIAL CRI'l'ICALI'l" INI'nAL~

~

Ol'ERM'ION Forecast 9/30/76 11/1/76 12/20/76

'Achieved 12/11/76 12/25/76 6/30/77

00.

DATE TYPE!

78-1

' 1-4-78 F

78-2 1-5-78 I

F I :

78-3 1-7-78 s

78-4 1-8-78.*

F 78-5 1-9-78 F

78-6 1-10-78 F

78-7 1-11-78 F

1 2

F: Forced s: Scheduled 8-1-7.R2

.Pg. 4 16 UNIT s11lmXJ'iNs J\\ND JUomR REDUCTIONS DOCKET NO.:

50-272 REPORT IDNrH

  • MimDD OF.

OORATION RFJ\\SON2 SHUITING (HOURS) r.xMN REl\\C'lUR '

4.1 A

3 i i 0

A*

4 (A) 0 A

.4 (A) 0 A

4 (A) 0 A

4 (A) 0 A

4 (A)

  • 12.2 I

A 2

Reason:

A-Equi(m3.flt Failure (Explain) a-Maintenance. o.r Test C-Refueling LICENSE EVEN!'

REPORT I 3

D-Regulatory Restriction E-Operator Training & License Examination F-1\\dministrative G-<:perational Error(Explain)

H-Other (Explain)

January, 1978

  • sYsTJ:M a::<<I'mENr cooE4.

CXJDES HF Filter HH Filter HH Filter HF Filter HF Filter HF Filter HF Filter

>>athod:.

!-Manual 2-Manual Scram.

3-Antanatic Scram.

4-0ther (Explain)

NOI'ES:

~~~~~~~~~

UNIT :NAME:.

DATE:

COMPLETED BY:

.TELEPHONE:

Salem Unit #1 February 15, !978 J~M. Zupko, Jr.

609-365-7000 X507-CAUSE AND OORREX:TIVE ACTION 'ID PREVfNI' REOJRREN::E IDss of llB, 12A, 13A, ],3B CirculatorE due to high screen t::.P.

Clean_ll, 12 Condensate Purrp Suction Strainers.

Clean 11, 12, 13 Condensate Purrp Suction Strainers.

IDss of 13A, 13B Circulators due to

  • high screen liP.

Frozen travel~g screens.

Frozen traveling screens.

Freezing conditions and lCM tide Cimsed lCM suction conditions on circulators. Operator manually*

tripped turbine.

4 Exhibit G - Instructions for Preparation of Data Entry Sheets for Licensee Event Report (µ:R) File (NUREG-0161) 5 Exhibit 1-Sane Source A.

I.Dad Reduction B.

Continuation of previous outage *

-* ------------------------------~

NO.

DATE 78-8 1-11-78 78-9 1-14-78*

78-10 l.;...15,;,_79 78-11 1-16-78 78-12 1-17-78 78-13 1-17-78 78-14 i-18-78 78-15 1-18-:78 78-17 1-23-78 78-18 1-28-78 8-l-7.R2 Page 5* of. 16.

TYPE1 F

F F

F

. F-F F

F F

F OORATIOO 2

(IWRS)

RFJ\\SON 66.0.

A 38.6 A

15.4

.A 8.1 A

0 A

6.4 A

0 A

0 A

114.8 A.

42.9 A

- UNIT smni:a-ms AND PCMER REOOCTIOOS REl'ORT IDNI'll January 1 1978

.j MErtJJD OF Slll11TING LIC>>lSE SYSTEM CXMPmENl' IXMN.

- EVEN!'

CDDE4 CooE5 RFJ\\CIDR REPORT I 4(B)

SF Val vex 4 (B)

SF Val vex 4(B)

HA Mo tone 4(B)

HF Filter 4 (A)

HF Filter 3

HH Val vex 4 (A)* -----

HH Filter

  • 4 (A)

HH Filter

\\

3 HA Instru 4(B)

HF Filter 50-272

  • )..

DOCKET. NO.: ______

UNIT *NJ\\ME:

DATE:

COMPLETED BY:

TELEPHONE:

Salem Unit No.1 February 15, 19-=78 J.M. Zupko, Jr.

609-365-7000 X507 CAUSE AND CDRREx:I'IVE ACTION ID PRIMM'~

11SJ56.bonnet le~g.

11SJ54 valve_ operator failure.

Main Turbine Turning Gear_rvbtor winding burned out.

Spurious losses of circulators.

IDss of llB, 13B Circulators due to high screen*@.

Feedwater flow transients due to a fault~ feedwater heater bypass valve.

Clean 11, 12, 13 Condensate Pump suction strainers~

Clean #13 Heater Drain Pump suction strainer.

Electrical Fault in Electro-HydraUlic Control System causing false turbine overspeed protective action.

Circulating Water Trash Rack Ice Accunmulation.

oo.

DATE 78-19 1-30:-78 78-20 1-30-78.

8-1-7 R2.

Page 6 of 16 TYPE!

F F

mRATION ruW3oN2 (IDJRS) 0 A

0 A

UNIT SHU'IDOONSAND PCMER IU!IU:TIONS DOCKET NO.:

50-272 REPORT MJNtH January, 1978 UNIT *NAME: -Sa_l

__ em U_m_,,-t-. "'""#-=. DATE:. February 15 I i978.

COMPLETED BY: J'~M. Zupko, Jr~.

TELEPHONE: 609-365-7000 X507 MimlJO OF SIR11TIOO LICDISE sYsTEM cntPrnF.Nl' CAUSE AND CX>RROCTIVE COIN EVEN!'

CXJDE4 CXJDES ACTION 'ID RFJIC'IDR REPORI' I PREVENI' REX:URRENCE 4 (A)

HF Filter Frozen traveling screens.

4 (A)*

HH Filter Clean 11, 12, 13 Condensate Punp Suction.Strainers

  • MAJOR PLANT M't!JFICATIONS RE.PORT MONTH Januru:y, 1978
  • DCR NO.

PRINCIPLE ED-0042, Service Water SYSTEM ED-0211 SWitchgearVentilation*

ED-0093 115VAC Inverters DOCKET NO. :

50-272

~~--.~__,__,__,__,.__,.

UNIT NAME: :. Salem Unit #1 DATE:

February 15, 1978 COMPLETED

  • BY:

J. M. Zupko, Jr.

TELEPHONE:

609-365-7000 X507 SUBJECT Modify intake enclosure to prevent travel:ing screen freeze-up.

Relocate pressure taps.

Install blown fuse indicators.

DOCKET NO.:

50-272 SAFETY -LATED

-NIT NAME:

Salem Unit #1

SUMMARY

OF MAINTENANCE DATE:

February 15' I 1978

.

  • DEPARTMENT MAINTENANCE.

REPORT MONTH January, 1978

-. -COMPLETED BY:

J. M. Zupko,_ Jr.

TELEPHONE:

609-365-7000 X507 WORK ORDER EQUIPMENT FAILURE DESCRJ;PTION.

CORRECTIVE ACTION NO.

RE-124 In Core.Flux Check Clutch Tension Map System.

on "F" Drive Unit.

Adjusted-clutch.

PD-4330 Control Room

-Danpers Bind Oiled and adjusted d.anpers *.

Ventilation.

PD-4340

  1. 11 B.A. Trans *.

Purrp Heat-tapes shorted.

Repaired damaged heat tape.

OD-5260 Valve 11RH29

_ Packing leak.

-Repacked.

OD-6760 Vital Heat Panels lHTGAl and 1HTGA2 Tracing~.

alanning.

Replaeed.therrrostats.

OD-6826 Valve 13RC22 Packing leak.

Repacked valve.

OD-6828*

11 R.C. Pump

. Packing leak-retum loop Tighten valve packing.

  • OD-6832 Valve 11SJS6 Repack and repair.

Seal welded bonnet seal.

. OD-6843 Valve 1CC136 Failed closure tine check

  • Adjusted stroke.

OD-6867

  1. 12 SW Purrp Shear Pin.broken.

Replaced Shear Pin.

Strainer.

OD-6868

  1. 14 SW Purrp Shear.Pin broken.

Replaced Shear Pin.

Strainer.

OD-6880

  1. 14 SW Purrp Shear Pin broken.

Replaced Shear Pin.

Strainer.

OD-7345 Valve'llSJ56 Valve cover* leaking.

Replaced gasket.

OD-7790 Valve 1SJ68 Packing leak.

Tightened packing.

Page8 of 16 8-1-7.Rl

DOCKET NO.: __ __,s~o~--2~72..__ ______ ~--~

SU~Y*OF SAFETY ~ATED MAINTENANCE.

.. *DEPARTMENT WUNTENANCE

.NIT NAME: ___

Sal

__ em

__ Uni

__._t __ #l ________ ~

DATE:

February 15, 1978 REPORT MONTH January,

  • 1978 CO MP LE 'i' ED BY:

J.M. Zupko, Jr.

WORK ORDER NO

  • OD-7845 OD-7853

' OD-7872 OD-7882 OD-7889 OD-7902 OD-7909 oi:>-7929

  • OD-7938 OD-7943 OD-7977 OD-7989 OD-8011
  • Page
  • 9 of 16 8-1-7. Rl EQUIPMENT 125 voc
  1. 12 COnponent

' Cooling Pump.

. #12 SW Pump Pump -Strainer.

Valve 12RH29

  1. 14 SW Pump Pump backwash~ __

Valve 12SJ20 15 s.w. Pump

  1. 12, 14, 16 S. W.Purno *.strainers Valve 12SW17 12 s.w. Purrp Strainer.

Aux. Bldg.

Ventilation

  1. 13-service Water Strainer.
  1. 14 s.w. Punp Pump.Strainer.

TELEPHONE.:

609~365-7000 X507 FAILURE. DESCRIPTION.

CORRECTIVE ACTION Grotind on *system.

Ground in R.M.S~ cabinet.

renoved.

. Vent line.leaking.

Rethreaded and reinstalled vent line.

Strainer packing leaking *. Repacked strainer.

Motor trips-on -overload..

  • Replaced*valve operator.

Transfo:rner burnt.*

Replaced burnt

  • transfonrer. _

.and.solenoid valve.

Packing *leak. *

  • Tightened* packing.

Repack punp.

Repacked pump~

Shear Pin broken.

Replaced shear pin~

Will not open from oontrol Adjusted torque sWitch.

console.

Runs ooritinuous in auto.

Recalibrate inst;runentation.

Replace 11 & 12 Exhaust Fan Roughing Filters.

Replaced filters *.

  • Hand hole cover leaking Replaced gasket.

Shear Pin broken.

Replaced shear pin~

'*~

DOCKET NO * :

50-,272

--~-------...--..--------

SUMMARY

. OF SAFETY -LATED MAINTENANCE r IT. NAME: _ __..S,_a=lern=-'U=Ill=*=t_#,;;..;l;;;__ ___ _

. DATE :

  • Februai:y 151.1978
  • DEPARTMENT.* MAINTENANCE REPORT MONTH January, 1978

J.M. Zupko, Jr.

TELEPHONE:. 609-365-7000. X507 WORK ORDER EQUIPMENT FAILURE DESCRIPTION

  • CORRECTIVE. ACTION NO.

OD-8027 lA-:-125 VDC Bus Voltage is higher Bus.

than normal.

Adjusted voltage.

OD-8034 Elev. 130' Interior door has. a air lock.

cracked upper roller.

Replaced bearing.

OD-8043

  • Valve 11RC28.

Packing leak.

Repacked valve.

OD-8044.

Valve 13RC16 Packing leak *.

  • Repacked valve.

reinstall'.* Perfonred as directed.*

.MD-2078 Valve 11CA681 Renove and test,

.MD-2406.

  1. 1 Errerg *

.*. Control Air. Camp. OVerllaul Corrpressor.

Overhauled carrpressor *.

MD-2419 Valve*l2MS130 Packing gland leak *.

Repacked: valve.

.MD-2437

  1. 16 s.w.

Purrp Backwash.

Disassenble and repair.

Changed.or{fice plate.

.MD-2441 Valve 11SW24 Diaphragm ruptured *..

.Replace diaphragm.

MD-2447 Valve llCVl.55 Diaphragm ruptured.

Replaced *diaphragm.

.MD-2471 Valve 16SW24 Diaphragm ruptured.

Replaced diaphragm.

.MD-2472 Valve 1CV56 Packing.leaking

  • Repacked valve.

OP-159

'Main. Stin. Supports Hanger supports.* not Reset.main steam supports.

loaded properly. * *

.Page 10. of 16

DOCKET NO.:

50-272

SUMMARY

OF SAFETY ~TED MAINTENANCE

.NIT. NAME:

  • Salem Unit #1 DA~E:

February 15, 1978 COMPLETED BY:

  • J.M. Zupko, Jr.
  • DEPARTMENT PERFORMANCE REPORT MONTH January, 1978 TELEPHONE: *
  • 609-365-7000 X507 WORK ORDER.

NO.

PD-4324 PD-4359 PD-4428 OD-7689 OD-7780 OD-7923 OD-7996 OD-8004 PD-4336 PD-4363 PD-4365 PD-4388

  • Page 11 of 16 R--1 -7 _J:U __

EQUIPMENT Service Water Bypass.Valve Timers.

Valve 12MS18 Protection System status panel.

Service Water*

PA-8707-Z.

13 A.F.W. Pump Valve 13SW58 N-43 Power Fange Service Water

  1. 11 Screen.

Heat.Trace.

. Safety Injection

RMS 1Rl6 R.C.S.

CH'."'"l Press.

Indicator.

FAILURE DESCRIPTION CORRECTIVE ACTION Timers not operating.*

Replace.limit switch on 11SW49 **

Valve leaking at :the diaphragm bolts.

Replaced* diaphragm.

Erroneous indication.

Replaced shorted diode..

/:y,P inStrurcent has Installed. new bourdon tube*

  • tubing bloWn off~..

No indication of Strn.

  • Press. in the Control Replaced*force.notoiin Room.

pressure transmitter.

Will not close in tine Reworked limit switch.

aliCMed *.

Instrurcent spiking.

Cleaned potentioneter.

Runs continuously.

Blew down bubbler tubes.

Heat trace thenrostats and Replaced and calibrated thenrooouples '."'" 701P, thernostats and thernooouples.

701$, 702P, 702S heat damaged.

  • Level indication Heated*lines and calibrated
  • frozen.

I.oss of indication. *

~laced G.M. tur.e and c ibrated.

Indication High.

Replaced signal isolator~

DOCKET NO * :

50-272 SU?1MARY *OF SAFETY *~TED MAINTENANCE..

.NIT NAME: ____ s_ai_em u_ni_*~t_#_l ________ _

. *. DATE :

February 15, 1978 *

  • DEPARTMENT. PERFDRMANCE REPORT MONTH January, 1978 CO MP LET ED BY:

J.M. Zupko, Jr.

  • . TELEPHONE:

609-365-7000. X507 WORK ORDER

.* EQUIPMENT..

  • FAILURE DESCRIPTION CORRECTIVE ACTION NO.

PD-4391 Safety Injection Erroneous readings.

Vented level transmitter.

  1. 11* Accum. level*

OD-7731

  • eves Flow indicator reading low. Reset square root extractor.

OD-7927 Valve & l.PR2 Stroke tine too long.

Replaced solenoid valve and tightened diaphragm bolts.

OD-7937

.Valve 1CV79

  • No open indication.

Adjusted limit ~itch.

PD-4355 6.T Protection Setpoint dropped.

  • Replaced two capacitors, I.cop 13.

and calibrated.

  • RE-117 Excore Detector Reading incorredtly.
  • Recalibrated recorders.

Voltage Recorder.

OD-7540 13 and 14 Steam

. Channel 2 reads higher Recalibrated recorders

  • Flow and Feed than others.

Flow Recorders.

OD-7852 Vital Heat Trace-Recorder

  • Bank advance malfunction..Replace two transistors and repaired broken wire.

PD-4340 Valve 14AF21 Demand indication reads Resoldered loose wire.

zero.

PD-4343 14 Steam Flow, Functional test out of CH-II. FT-543 spec.

Recalibrated loop.

  • OD-6812 Stack Flow FA8605 reading 100, 000-.

Ice in feed lines *.

cfm. (steady reading)

OD-6820 RWST level B

  • Reads Lower th.an Recalibrated Transmitter level D.
  • I OD-6825 eves Valves 1CV185, lCV-181 Replaced* controller* for..
  • lCV-179, do not open on valve lCVl 79 *.

at1+:omatic.

R-l-7 'R1 Pac fe 1? Of J.b

.A Li.

SUMMARY

OF SAFETY ~TED MAINTENANCE

. ~ DEPARTMENT PERFORMANCE

. REPORT MONTH*. January, 1978 DOCKET N0.:_~...,;_~5~0-~2~7~2~~~~~

.NIT NAME: __

s_al_em __

u_m_* t__,#_l ___ _

. DATE: __

F_eb_ruazy

___ ~_l_5_,_1_97_8 __ _

COMPLETED BY: __

J_.M_._z_up~~-o~,_J_r_. __ ~

TELEPHONE : _ __;:6;.;::.0.=..9--=3;.:6:.:;5_-.:..:

70:.::0;..:0;....:.:XS:;;,.0::.,:7:...._--

WORK ORDER EQUIPMENT FAILURE DESCRIPTI.ON CORRECTIVE ACTION NO.

OD-6875 Page 13 of 16

  • 8-1-7.Rl N-43 IDwer Erroneous reading.

Replaced signal isolator.

  • ~*

OPERATING SU~Y SALEM UNIT #1

.January,* 1978. *.

i-1 *With the plant operating at -88% of. capacity,.the heater drain pumps were cycled as. pa'rt of. a program to clean the Feed. and...

Condensate System..

Power was t;:hen reduced to *.70% *to cleari all condensate pump suction strainers.

At 0825 unit output *was returned to full load of 1140 Mwe gross.

The unit operated at full load until 1-4.

1-4 With the unit at full power,.Circulating-Water System problems forced a load reduction to 50% power.

Several minutes after the load reduction, #12 Steam Generator Feed* Pump tripped; followed by -a trip of #11 Steam Generator Feed.* Pump.

A Reactor Turbine Trip occurred from_50% power caused by low condenser*

vacuum.

At 0350 the reactor was taken critical and the unit was syn-chronized at 0625.

1-5 At 0449 the unit output was.returned *to full load.

At 2128 load was reduced to 70% to clean *condensate pump strainers.

1-6 At 1210.unit output was returned to full load.

1-7 At 2145 load was.reduceq to cycle heater drain PumPS and clean condensate pump suction strainers.

  • 1-8.At 0827 unit output was returned to full load.

. 1-9.The unit remained at full load esse~tially all.day". except for

.a short period at 70% due to circulating water problems.

Page 14 of.16

1-11 *At 0146 the* turbine. was manually tripped from 30% power.due to problems with the Circulating Water System.

repair anon-isolable valve in the Safety Injection.System.

The.outage lasted*until 1-16.

1-16 The reactor was*taken critical at 0828 and the unit was synchronized at 2206.

?

1-17 At 0713 the unit tripped from 150 MWe gross due to high-high level in #13 *Steam Generator...

  • This stemmed from frozen feeler lines on a feedwater heater drainage valve that operated.a

.bypass valve which caused.an unstable feedwater condition. *The operator attempted to manually control_feedwater to avoid a low.;..low level.. trip.

The transient led to a.high-high level trip.

The reactor was taken critical at 0852 and the unit was synchronized at 1331.

1-18. At 0630the unit-output was returned to full load:

At 1145 the. load was reduced to 70% to clean condensate pump suction strainers and was* returned to full load at 2200. *The unit remained at full power until 1-23.

1-23 At 0915 a Reactor Turbine Trip occurred caused by a malfunction of the E-H Control System.

At 1330 A Reactor Coolant System cooldown*was started to repair leaking #12 and #13.Steam Generatoz;, steam* side *manways.

At 1759 a Safety*Injection occurred during cooldown at-about 200,psigsteam generator pressure on.a high *differential pres-sure between steam generators. (Ref.* L.E.R. No. 78-04)

The outage lasted till.1-29.

Page 15 of 16

~. ~, d ***

' j.;;:2 8

  • 1-29 e

The reactor. was taken critical at *0530.

The unit was synch,ronized at 2256. :A delay in synchronizing the: generator-was due.to' losi bf bondenser circul~~ing ~ater caused by*.* ici.rig. ove"r. of. t:he, trash racks *

. 1-30. At 1610 the unit output was returned to_ full. lqad *.

At 2203.a load reduction to :70% was started to clean *

  • condensate pump.strainers.

1-31* At.0928.the unit.output was returned to full load.

Page 16 of 16

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