ML17037C231

Addendum to the Semi-Annual Report of Operation for Nine Mile Covering the Period of January 1, 1973 Through June 30, 1973

ML17037C231
Person / Time
Site:	Nine Mile Point
Issue date:	09/14/1973
From:	Schneider R Niagara Mohawk Power Corp
To:	O'Leary J US Atomic Energy Commission (AEC)
References
Download: ML17037C231 (14)

Text

FROM:

AEC DISTRIBUTION FOR PART 50 DOCKET MATERIAL (TEMPORARY FORM)

DATE OF DOC DATE REC'D tLTR CONTROL FILE:

NO:,7213 MEMO RPT OTHER Niagara Mohawk Power Corporation Syracuse, New York 13202 9-14-73 9-27-73 Rudol h R. Schneider TO: ORIG CC OTHER SENT AEC PDR John F. O'eary 1 signed 39 SENT LOCAL PDR CLASS UNCLASS PROP INFO INPUT NO C S REC'D DOCKET NO:

40 50-220 DESCRIPTION: ENCLOSURES:

Ltr 'trans the following: ADDENDUM No. 1 to Semi-Annual Report of Operations for <<~the Nine Mile Point Unit 8 1 covering period 1-1-73 thru 6-30-73.

ACKNOWLEDGED PLANT NAME: Nine Mile Point Unit 8 1 DO NOT REMOVE (40 cys rec'd)

FOR ACTION/INFORMATION

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W/ Copies Copies W/ Copies W/ Copies KNIEL(L) SCHEMEL (L) YOUNGBLOOD(E)

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KNIGHT BALLARD GOULBOURNE (L) PLANS GIAMBUSSO PAWLICKI SPANGLER LEE (L) MCDONALD BOYD SHAO MAIGRET (L) DUBE MOORE (L) (BWR) ~TELLO ENVIRO SERVICE (L)

DEYOUNG (L) (PWR) HOUSTON MDLLER SHEPPARD (E) INFO SKOVHOLT (L) NOVAK DICKER SMITH (L) C. MILES P. COLLINS ROSS KNIGHTON TEETS (L)

IPPOLITO'EDESCO YOUNGBLOOD WADE (E)

REG OPR REGAN WILLIAMS (E)

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~TEELE BENAROYA HARLESS VOLLMER EXTERNAL DISTRIBUTION LOCAL PDR Oswe o N Y.

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NIAGARA MOHAWK POWER CORPORATION NIAGARA

~~IIllM MOHAWK Fifo 0 30D ERIE BOULEVARD WEST SYRACUSE, H.Y. I3202 September 14, 1973 CP I

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O'eary

'4'>ipn Mr. John F. QQIQfpgy Director of Licensing Soctipn United States Atomic Energy Commission lP llfashington, D. C. 20545 Re: Nine Mile Point Nuclear Station, Unit ¹1 Provisional Operating License: DPR-17 Docket No.: 50-220 Enclosed is Addendum dated September 13, 1973 to the Semiannual Report of Operation for the Nine Mile Point Nuclear 5

Station, Unit ¹1 covering the period January 1, 1973 through June 30, 1973. This addendum includes an:iaddition to the Instrument and Control Summary and typographical corrections.

Very"truly yours, dolph' Sc ez.der Vice President Electric Operations RRS:cm Cl DDCKEKD usAEC lt,sEp2V 1973 5 EGuulTORY euI. SeCrI0N fsCuT <ge

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NIAGARA MOHA1'IK POWER CORPORATION NINE MILE POINT NUCLEAR STATION UNIT 1 SEMIANNUAL REPORT OF OPERATION JANUARY 1, 1973 THROUGH JUNE 30, 1973 ADDENDUM 1 Please substitute the attached pages 14, 24, 25 and 41 marked Addendum 9/13/73 for the corresponding pages in y'our copy of the Eighth Semiannual Report of Operation, Nine Mile Point Nuclear Station Unit l.

Thomas J. rkins Station Superintendent

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NINE MILL'OINT NUCLEAR STATION UNIT NO. 1 INSTRUMENT AND CONTROL SURfARY JANUARY THROUGH JUNE 1973 NATURE OF EFFECT ON CAUSE OF RESULTS OF ACTION TAKEN TIME FOR l>ATE SYSTEM COMPONET MAINTENANCE SAFE OPERATION MALFUNCT ION MALFUNCTION TO PRECLUDE COMPLET OF THE REACTOR RECURRENCE Apr. Containment Drywell Added thermocoupl s 20 Leakage Equipment Revision None None. None to all drain line 2 Wks.

Drain Lines to indicate leaka e Apr. New More complete Install 24 L.P.R.M. Detectors Installation picture of Age 6 Mo'ture Bad Detectors New Detectors 3 Wks.

Reactor Flux May Aux. N167 M-G Rx. Protection Defective Trip out on 2 Power Set Correct ive System Bus Contacts time delay New Relay 3 Hr.

I May Moog Manual Auto Vibration Added two set 6 Turbine Valve Revision Control of turbin None Succeptable screws to stop I/2 Day sli age May Annual Controls Improper Annual 7 Turbine E.P.R. Calibration Turbine None Turbine Calibration 1 Day Control

• May R.PCS. RE18A Lo- Functional Rechecked 7 Lo-Lo Rx. Test None (Outage) Drift None calibration on 2 Hr.

5-10-73 May Control ll Pump Loss of CD R.DE Broken No indication Replace T C 1 Hr 10 Rod Thermo- Corrective Press on Pump Thermocouple of bearing Drive cou le Burnout Tem erature May Main Faulty Steam Instrument Faulty Quarterly 14 P. R.M. Steam Rad. Calibration Line Rad. Reading Drift Reading Calibrations 2 Days Monitors May Rx. Electromati Calibration Pressure Relief Instrument Lower Press Annual 20 Vessel Relief Check Cap ab i it y 1 Dri ft Relief Setting Calibrations 3 Days I

Valves I May Main I ~ V. Limit Causes isolation Poor Erratic Repositioned 26 Steam Switches Revision of Main Stm.lines Mounting operation of switches 2 Days switches

• Addendum 9-13-73

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TABLE 1 SU MARY OF STATION OPERATIONS JANUARY 1, 1973 THROUGH JUNE 30, 1973 PERIOD GENERATION IN hm HOURS HOURS RATES Total Reactor Number Number Availability Capacity Load Gross Gross Net On Hr.this Equiv.Full of of Factor Factor Fact Thermal Electrical Electrical Load Period Power Hrs(a) Criticals Scrams (d)

January 1, 300, 937 442, 780 430, 156 744.0 744 703. 2 100.0 (c) 94.8 96.3 February 771, 137 257,733 2499277 467.8 672 416. 8 15 (b) 69.6 60.8 63.4 March 1, 304, 479 441,782 429>418 744.0 744 705. 1 100.0 94.6 96.8 April 4239566 1399852 135,268 247.7 720 228.9 34.4 30. 8 32.0 May 743 I

June 392,683 126, 869 122,604 345. 2 720 212. 2 47.9 27.9 35.7 6 hSNTH TOTAL 4, 192, 802 1,409,016 1,366,864 2548.7 4343 2266.2 19 58.7 51.5 54.0 1969 294,997 70, 967 63,505 473.3 .

126.8 1464 17 100.0 35.2 69+

1970 5,940,025 1,917,708 1,857,134 4079.6 8760 3832.2 32 17 48.9 42.4 41. 7 1971 9,145,980 3,032,972 2,937,369 5962.6 8760 5360.1 88 13 68. 1 63.4 66.1 1972 10,010,627 3,344,721 3,242,306 6167.4 8784 5410.6 49 70.2 60.5 60.0 TOTALS THRU JUNE/73(e)29,584,431 9,775,384 9,467,178 19231.6 32111 15991.5 299 57 59.9 48.3 47.9 (a) Based on 1538 Ml<t prior to July 1971 and 1850 Wt from July 1971 (b) Includes criticals for training (c) From December 14, 1969 - Commercial Operation (d) 500 Mlle Prior to July 1971 (e) Cumulative rates are based on total Unit ¹1 Operating Hours, 610 We from December 1971 610 We net capacity rating, 615 hwe net max. hr. generation, and 1850 hwt.

Addendum 9-13-73

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~ V TABLE II REACTOR SHUTDOWNS AND SCRAMS PERIOD JANUARY 1, 1973 THRU JUNE 30, 1973 HOURS GENERATOR REACTOR DATE OPERATION

SUMMARY

OF OUTAGE CAUSE OFF LOAD SUBCRITICAL

1. Feb. 9 Scram Generator trip on loss of 151. 2 135 '

excitation. Generator available 2/12/73 8 08:00 Remainder of outage to complete replacement of control rod drives 5 SRM's.

Reactor start-up Feb.15 (Rx.critical 8 0120)

Generator on line 2/15/73 8 17:13

2. Feb. 23 Shutdown A.E.C. Examination for 53. 0 32.9 Operator Licensing

3. Apr. 8 Scram Turbine trip by Emergency 17.1 6.8 Governor

4. Apr. 11 Shutdown Repack ¹12 Recirc. Pump 47.8 24.0 Ins'trument Valve 5 Union On ¹13 Reactor Recirc.

Cooling Water Piping.

5 ~ Apr. 14 Scram Annual Re fue ling. Turbine 1517.9 1394.8 was tripped to complete full power plant testing.

6. June 12 Shutdown Shutdown to repair ¹113 46.0 Electromatic Relic f Valve

7. June 15 Scram Low Vacuum 4,4

8. June 16 Turbine- Generator off line. 8.3 Generator Reactor remained super-Shutdown critical. Turbine was Only removed from service to adjust an oil deflector that was rubbing.

25 Addendum 9-13-73

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TABLE XVI RADIATION EXPOSURE ACCORDING TO DUTY FUNCTION JANUARY THROUGII JUNE 1973 DUTY FUNCTION MAN REM NUMBER OF MEN INCLUDED Regular Station Employees:

Routine Operation 6 Surveillance 16.97 26 Shutdown Operation 6 Surveillance 33.25 26 Routine Maintenance 19.92 30 Shutdown Maintenance 58.04 30 Routine Radiation Protection 4.02 Coverage Shutdown Radiation Protection 8.79 Coverage Supervision 22.12 15 NMPC Personnel on Temp. Duty:

118. 28 '6 Shutdown Maintenance Contractor Personnel:

97.82 94 Shutdown Maintenance NOTE: Only individuals with exposure >500 mrem for 6 month period included.

41 Addendum 9-13-73

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