ML20043A192

Monthly Operating Rept for Apr 1990 for TMI-1

ML20043A192
Person / Time
Site:	Crane
Issue date:	04/30/1990
From:	Hukill H, Smyth C GENERAL PUBLIC UTILITIES CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
C311-90-2072, NUDOCS 9005180179
Download: ML20043A192 (7)

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i GPU Nuclear Corporation N

Mr Post Office Box 480 Rovte 441 South i

Middletown, Pennsylvania 17057 0191 717 944 7621 TELEX 84 2386 Writer's Direct Dial Number:

May 14,1990 C311-90-2072 i

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U. S. Nuclear Regulatory Commission Attn Document Control Desk

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Washington, D.C.

20555 Dear Sir l

Three Mile Island Nuclear Station, Unit I (TMI-1)

Operating License No. DPR-50 i

l Docket No. 50-289 i

Monthly Operating Report April 1990 i

Enclosed are two copies of the April, 1990 Monthly operating Report for Three Mile Island Nuclear Station, Unit 1.

Sincerely, D.

il Vice President & Director, THI-1 HDH/WGH cc:

T. T. Martin, USNRC F. Young, USNRC

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Attachments h

9005180179 900430 h'

PDR ADOCK 05000289 t

R PDC GPU Nuclear Corporation is a subsidiary of General Public Utilities Corporation f

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OPERATIONS

SUMMARY

APRIL 1990 The unit entered the month at 90% power holding for 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> prior to commencing a power increase.

Power was increased and delta Tc ratioed with steady state power levels at approximately 96% power.

Power was limited by high OTSG 1evel on the "B" OTSO.

MAJOR 2AFETY nELATED.. MAINTENANCE During April, the following major safety related maintenance activities were performed:

Emercenev Diesel Generator EG-Y-lh Replacement of a piston pin in Emergency Diesel Generator (EG-Y-1A) was performed as a result of the receipt of a 10CFR21 notification made by Colt Industries. Eighteen of the piston pins addressed by the notification had been,ph6 supplied to THI-1 by Colt. An inventory of warehouse stock located I

seventeen of those supplied and a Maintenance History review documented the installation of the eighteenth pin in the #10 piston of EG-Y-1A.

Both the #10 piston pin and piston insert assembly were removed and replaced.

Inspections of the piston liner were performed and no abnormal conditions found. The diesel was reassembled, test run, and returned to service.

Make-UD Pumo MU-P-1B A leak at a threaded pipe connection on the casing vent line of MU-P-1B was repaired. The connection was disassembled, the internal and external threads cleaned and a pipe joint sealant applied.

Upon reassembly and tightening, testing was performed and no leakage was evident.

MU-P-1B was returned to service.

Precoat Filter WDL-F-1B The fourteen filter elements in WDL-F-1B were removed from the filter vessel.

Since thirteen new elements were available for installation one of the old elements was cleaned and reinstalled.

Post maintenance testing was satisfac-torily completed and the precoat filter unit returned to service.

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Screen Wash Ventilation Pama SW-P-2A k

i High vibrations on Screen Wash Pump resulted in its overhaul during April.

.j The motor was removed irom the pump and the pump disassembled. A rebuilt bowl assembly, new shafts, shaft bearings and shaft tubes were used to reassemble the pump.

Installation of the motor and post maintenance teeting will be i

f completed in May.

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OPERATING DATQ REPORT.

DOCKET NO.

50-289 DATE 4/30/90 COMPLETED BY C.W. Smyth TELEPHONE (717) car.nnti OPERATING STATUS I NOTES I

1. UNIT NAMES

THREE MILE ISLAND UNIT.til i

2. REPORTING PERIOD:

APRIL 1990.

1.

I

3. LICENSED THERMAL POWER (MWT):

2560. 1 1

,4.

NAMEPLATELRATING (GROSS MWE):

871. I l

5. DESIGN ELECTRICAL RATING (NET MWE):

819. I i

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE):

856. 1 I

7. MAXIMUN' DEPENDABLE-CAPACITY (NET MWE):

808. I I

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O. IF' CHANGES OCCUR-IN (ITEMS 3-7) SINCE LAST REPORT, GIVE REASONS -

19.' POWER LEVEL TO WHICH RESTRICTED, IF ANY INET.MWE) 10.-REASONS.FOR RESTRICTIONS. IF ANY:

THIS MONTH YR-TO-DATE_ CUMMULATIVE L 11. HOURS IN REPORTING PERIOD 719.

.2079.:

137280.

l 12. NUMBER OF HOURS REACTOR'WAS CRITICAL 719.0-1284.6

'63283.2-L: 13. REACTOR RESERVE SHUTDOWN HOURS

-0.0 242.8

- 2245.6 i

, 14.-HOURS GENERATOR ON-LINE.

719.0 1242.6 62238.7 l 15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.O' O.O l-10. GROSS THERMAL ENERGY GENERATED (MWH) 1 1773153.

-2790697.

152362591.

17. GROSS ELECTRICAL ENERGY GENERATED.(MWH) 604209.

954764.

51261433.

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18. NET ELECTRICAL ENERGY GENERATED (MWH)

'570219.

876760.

'48063249.-

10. UNIT SERVICE FACTOR 100.0 43.2' 45.3-

20. UNIT AVAILABILITY FACTOR

'100.0:

43.2-45.3 21.-UNIT CAPACITY FACTOR'(USING MDC NET) 98.2 37.7' 44.7

22. UNIT CAPACITY FACTOR (USING DER' NET) 96.8-37.2 42.7 i 23. UNIT FORCED OUTAGE' RATE O.0 16.0 49.3 L 24 SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE, AND DURATION OF EACH

, 25. IF SHUT DOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP:

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r E AVERAGE DAILY-UNIT POWER LEVEL 4

J DOCKET!NO.

.50-299-

UNIT. -

TMI-l' DATE 4/30/90 -

COMPLETED BY C.W. Smyth TELEPHONE -1717) 948-8561 i

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.NONTH:. APRIL-4 1

DAY AVERAGE-DAILY POWER LEVEL

-DAY. AVERAGE DAILY, POWER LEVEL

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-(NWE-NET)

(NWE-NET) s

!=

' 805. -

17

' 790. ;

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2 811..18-901.-

, ' 19 799.

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'4-1808.:-

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21 789.-

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' 790.

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-23 784.-

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24 785.

9 796.

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10 791.'

26 1772.

i 11' 794.-

27 773.-

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29'

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12 798.-

'2B' 770.

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30:

781..

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15' 791.

-31 N/A 1

16' 789.

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UNIT SHUTDOWNS AND POWER REDUCDONS

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BATE 4/30/90 GIAWRITED WY C.W. Smyth APRIL 1990 REPORT 800MHf m ( 717 ) q13,a w t e

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4 24 Cause & Cnevei.teve 3g 3

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Licensee P,

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Ateems **

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Noems Netweente 6

NONE 1

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• Correction to March 1990 Input:

Unit Shutdown for Refueling Outage Comenced 01/05/90. Total Number of Outage Hours as of this Report Period is 1385.62 vs 1352.62 as Previously Reported.

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E minin G. 8meensee.ms l

T ased Reasewi.

Metimil:

e 5 S hedi led A I gepnient FadweILnplain) 148anual fue Preparsee.we na Data a heaineensace ci Test 248anual Scsseu.

Emery 58ecess tiw twenwe-C Refuelmg 3 Aut.missac &vann.

Event Repiw tLE RI Fsic tNORI G.

D Regulaenry Rcssense.es 8 Delics 41 s:4anil 0161) i Orcsasos Trainmg & i stenw I ununatum l1Adnumsesatex 5

I sinbes I - 54=w S me.c G Orcesepmal I ev.= 11 splamt 11 Onlies (I spleen t 6

Actually used Exhibits F & 11 NUREG 0161

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f REFUELING INFORKATION REOUEST 1.

Name of Facility:

Three Nile Island Nuclear Station, Unit 1 2.

Scheduled date for next refueling shutdown October 4, 1991 (9R) 3.

Scheduled date for restart following current refueling: NA 4.

Will refueling or resumption of operation th9reafter require a technical specification change or other license amendment?

If answer is yes, in general, what will these be?

If answer is no, has the reload fuel design and core con-figuration been reviewed by your plant Safety Review Com-mittee to determine whether any unreviewed safety questions are associated with the core reload (Ref. 10 CFR Section 50.59)?

No.

If no such review has taken place, when is it scheduled?

completed.

5.

Scheduled date(s) for submitting proposed licensing action and supporting informatj0n None planned.

6.

Important licensing considerations associated with refueling, e.g. new or different fuel design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, new operating procedures None.

7.

The number of fuel assemblies (a) in the core, and (b) in the spent fuel storage pools (a) 177 (b) 441 8.

The present licensed spent fuel pool storage capacity and the siae of any incresse in licensed storage capacity that has been requested or is planted, in number of fuel assemblies:

The present licensed capacity 14 752.

Planning to increase licensed capacity through fuel pool reracking is in process.

9.

The projected date of the last refueling that can be discharged to the opent fuel pool assuming the present licensed capacity:

1991 is the last refueling discharge which allows full core off-load capacity (177 fuel assemblies).

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