ML20113E661

Monthly Operating Rept for Dec 1984

ML20113E661
Person / Time
Site:	Duane Arnold
Issue date:	12/31/1984
From:	Mineck D, Putnam K IES UTILITIES INC., (FORMERLY IOWA ELECTRIC LIGHT
To:	NRC OFFICE OF ADMINISTRATION (ADM), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
DAEC-85-029, DAEC-85-29, NUDOCS 8501230511
Download: ML20113E661 (10)

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OPERATING DATA REPORT j"

DOCKET NO. 050-0331 DATE 01-15-85 COMPLETED BY Kenneth S. Putnam TELEPHONE 319-851-7456 i

OPERATING STATUS Notes

1. Unit Nome Duane Arnold Energy Center i

2. Reporting Period December, 1984

3. Licensed Thermal Power (MWt):

1658 i

4. Nameplate Rating (Gross MWe):

565

5. Destgr. Electrical Rating (Not MWe):

538 A

6. Maximum Dependable Capacity,(Gross MWe):

545

7. Maximum Dependable Capacity _(Not INo):

515

8. If Changes Occur in Capacity Patings (items Number 3 Through 7) Since the Last Report,' Give Reasons:

9. Power Level to Which Restricted, if Any (Not MWe):

Average maximum attelnable power was approximately 90% of fulI power.

10. Reasons For Restrictions,: If Any:

Coastdown due to fuel depletion. Maximum attainable power levels were approximately 945 power on December 1, 1984 and reduced to approximately 86.4% power on December 31, 1984 This Month Yr-to-Date Cumulative 4

11. Hours in Reporting Period 744.0 8784.0 86928.0

12. Number of Hours Reactor was Critical 744.0 6637.2 62588.7

13. Reactor Reserve Shutdown Hours 0.0 150.3 150.3 4

14. Hours Generator On-Line 744.0 6405.0 60847.7

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH)

-960578 8711373 76459935

17. Gross Electrical Energy Generated (MWH) 319079 2893297 25587354

18. Net Electrical Energy Generated (MWH) 299127 2717560 23956151

19. Unit Service Factor 100.0 72.9 70.0

20. Unit Avei1abIIIty Factor 100.0 72.9 70.0

21. Unit Capacity Factor (Using MDC Not) 78.1 60.1 53.5 i.

22. Unit Capacity Factor (Using DER Not) 74.7 57.5 51.2

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'23. Unit Forced Outage Rate 0.0 14.1-17.0

24. Shutdowns Scheduled Over Next 6 Months (Type Date,'and Duration of Each):

j Refuel. Outage beginning 2/1/85 lasting approximately 16 weeks ff 0

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~ 25. If Shut Down At End Of Report Period, Estimated Date of Startup:

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o AVERAGE DAILY UNIT POWER LEVEL

• 4 DOCKET NO. 050-0331-UNIT Duane Arnold Energy Center DATE 01-15-85 COMPLETED BY Kenneth S. Putnam TELEPHONE 319-851-7456 MONTH December,-1984

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DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 404 17 443 2

403 18 449 3

410 19 441 4

410 20 443 5

418 21 435 6

427 22 442 7

431 23 439 8

'297 24 304 9

445 25 283 10 458 26 330 11 445 27 364 12 448 28 105 13 448 29 358 14 444 30 439 15 4 36 31 435 16 424 i

lNSTRUCTIONS On this format, list the average daily unit power level in MWe-Net for each day in the reporting month. Compute to the nearest whole megawatt.

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UNIT SHUTD07NS AND POEER REDUCTIONS Dockot No.

050-0331 Unit Name Duane Arnold Energy Center Date.

01-15-85:

REPORT MONTH December, 1984 Completed by Kenneth S. Putnam Telephone 319-851-7456 Licensee No.

Date Event Cause Report #

r 12 12-08-84 F

0 A

4 None AD EXC Power reduced for removing "B"

Recirculation M/G set from service. The M/G set was experiencing excessive sparking. The M/G set was Inspected, exciter windings cleaned, slip rings resurfaced and brushes replaced.

13 12-24-84 F

0 A

4 None SJ P-01B-Reactor Feed Pump IP-1B developed a leak in the area y

of a casing _ bolt.

Power was reduced for repairs.

14 12-28-84 F

0 A

4 None SK PSP A leak developed on the return line from the.1A feedwater pump seals to the IE-4A heater drain.

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4 F: Forced Reason:

Method:

Exhibit G-Instructions S:' Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram.

Entry Sheets.for Licensee C-Refueling 3-Automatic Scram.

Event Report (LER) File (NUREG-D-Regulatory Restriction 4-Other(Explain) 0161)

E-Operator Training & License Examination F-Administrativ*

5 G-Operational Error (Explain)

Exhibit 1-Same Source

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H-Other(Explain) i e

Deckot No.

050-0331-Unit Ducan Arnold Escrgy Coatcr Date 01-15-85 MAJOR / SAFETY RELATED MAINTENANCE Completed by Kenneth S. Putnam Telephone 319-851-7456 20 ATE SYSTEM COMPONENT DESCRIPTION 12/07/84 Fire Suppression Supply Valve installed new. bonnet.

(LER 84-044) 12/08/84 Reactor Recirculation System Motor / Generator. Set Exciter windings cleaned, slip rings resurfaced, and brushes replaced.

(See Unit Shutdowns & Power Reductions, #12) 12/24/84 Feedwater System "B" Reactor Feedwater Pump Plugged leak near casing bolt.

(See Unit Shutdowns & Power Reductions, #13) 12/28/84 Feedwater S'ystem "A" Reactor Feedwater Pump Seal Repaired leak.

Water Return Liner (See Unit Shutdowns & Power Reductions, #14) o e

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Docket No. 050-0331 Unit Duane Arnold Energy Ctr Date 01-15-85

'b Completed by Kenneth Putnam Telephone 319-851-7456 REFUELING INFORMATION 1.

Name of facility.

A.

Duar.e Arnold Energy Center 2.

Scheduled date for next refueling shutdown.

A.

February, 1985-3.

Scheduled date for restart following refueling.

A.

May, 1985 4

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

Yes.

A.

Reload license submittal.

B.

Additional MAPLHGR curves for new fuel bundles being Introduced for Cycle 8.

C.

Revised Spent Fuel Storage Technical Specifications.

D.

Supplementa l Reload License. submittal for Cycle 8 Lead Test Fuel Assemblies including MAPLHGR curves.

5.

Scheduled date(s) for submitting proposed licensing action and supporting information.

A.

Submitted C.

Submitted B.

Submitted D.

Submitted 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..

5 GE Lead test assemblies which incorporate advanced fuel designs.wlli be loaded for Cycle 8.

-7.

The number of fuel assemblies (a) In the core and (b) In the spent fuel storage pool.

A.

.a) 368 b) 576 s

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Docket No. 055-0331 Unit Duane Arnold Energy Ctr Date 01-15-85 Completed by Kenneth S. Putnam T e l e p h o n e,. 319-851-7456 REFUEllNG INFORMATION (Continued) 8 The present licensed spent fuel pool storage. capacity and the size of any increase in licensed storage capacity that has been requested or is planned, in number of fuel assemblies.

A.

2050 9

The projected date of the last refueling that can be d ischarged to the spent fuel pool assuming the present licensed ca pa ci ty.

A.

1998 J

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r e Dockot No. 055-0331 Unit Duane Arnold Energy Ctr Date 01-15-85 Completed by Kenneth S. Putnam Telephone 319-851-7456 NARRATIVE

SUMMARY

0F OPERATING EXPERIENCE 12/01/84 At 0000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> the plant was in normal operation at approximately 430 MWe (gross).

12/04/84 Maintenance repair activities rendered Turbine Building exhaust effluent sampling inoperable for approximately 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> during period of no radlological releases.

(Normal radioactive effluent pathways monitoring remained operable.)

12/06/84 At 0730 the "A"

Standby Filter Unit auto-Initiated as a result of 1,o w ventilation Inlet temperature.

(LER 84-043) 12/07/84 At 1703 hours0.0197 days <br />0.473 hours <br />0.00282 weeks <br />6.479915e-4 months <br /> it,_was discovered that maintenance activities had rendered one of the Reactor Building fire hose stations inoperable. Cerrective actions were promptly taken to restora the station to an operable condition.

(LER 84-044) j 12/08/84 AT 0502 hours0.00581 days <br />0.139 hours <br />8.300265e-4 weeks <br />1.91011e-4 months <br /> operations personnel noted the smell of hot or burning material in the area of the Recirculation M/G set room.

Investigation revealed excessive sparking Inside the "B" M/G set exciter. A fire w a t c h,,w a s posted and power reduction commenced to permit repairs. At 0545 hours0.00631 days <br />0.151 hours <br />9.011243e-4 weeks <br />2.073725e-4 months <br /> a 24-hour LCO commenced,when the "B" Recirculation pump was taken out of service thus beginning single-loop operation. At 1912 hours0.0221 days <br />0.531 hours <br />0.00316 weeks <br />7.27516e-4 months <br /> repairs. wore completed and the "B"

recirculation pump..as returned to service hour LCO.

,end i ng the 24-w 12/15/84 At 1220 hours0.0141 days <br />0.339 hours <br />0.00202 weeks <br />4.6421e-4 months <br /> the "B"

Standby Filter Unit. was declared inoperable when a solenold valve controlling an exhaust damper was found to have a supply air leak.

A 7-day LCO commenced. Repairs were completed by 1929 hours0.0223 days <br />0.536 hours <br />0.00319 weeks <br />7.339845e-4 months <br /> ending the 7-day LCO.

12/23/84 At 0538 hours0.00623 days <br />0.149 hours <br />8.895503e-4 weeks <br />2.04709e-4 months <br /> a d r.y w e l l equipment drain sump outlet flow transmitter was found to be performing erratically. The system

. as declared inoperable commencing a 7-day LCO.

The system _ was w

returned to service at 1650 hours0.0191 days <br />0.458 hours <br />0.00273 weeks <br />6.27825e-4 months <br /> ending the 7-day LCO.-

4 12/24/84 At 03t5 hours'a leak was detected on.the "B"

reactor feedwater pump.

Power was reduced to permit taking the pump out of service for repairs. At 1432 hours0.0166 days <br />0.398 hours <br />0.00237 weeks <br />5.44876e-4 months <br />, with the leak repaired, the "B"

reactor foodwater pump was returned to service and po.w o r increase commenced.

12/26/84 At 1455 hours0.0168 days <br />0.404 hours <br />0.00241 weeks <br />5.536275e-4 months <br /> operators found a blown fuse in the power supply to a solenoid valve on the liquid sample return line of. the Post-

. Accident Sampling System. The system was declared Inoperable commencing a 7-day LCO for tha restoration of_ sampling capabilities. The system was restored to service at.1503 hours0.0174 days <br />0.418 hours <br />0.00249 weeks <br />5.718915e-4 months <br /> on 12/27/84 ending the 7-day LCO.

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.:s ;e Docket No. 055-0331

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Unit Duane Arnold Enercy Ctr Date 01-15-85 Completed by Kenneth S. Putnam Telephone 319-851-7456 4

T NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE (Cont) i "C" RHR - Servi ce Water Sy stem w as declared

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12/27/84 At 0200 hours0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br />'the Inoperable as a result of a. leaki ng auto-vent va l ve.

A 30-day LCO

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commenced.

At 1515 hours0.0175 days <br />0.421 hours <br />0.0025 weeks <br />5.764575e-4 months <br /> a leak w as detected in the area of. the "A" F eedw ater 4

Pump. seal water retu rn line. P ow e r,w a s reduced to approximately 105 of rated power to permit repair of the leak.:

12/28/84 At 1740 hours0.0201 days <br />0.483 hours <br />0.00288 weeks <br />6.6207e-4 months <br /> the leak repai rs were. comp leted and powor increase commenced.

12/29/84

'AT 1753 hours0.0203 days <br />0.487 hours <br />0.0029 weeks <br />6.670165e-4 months <br />, repair and testing of the."C" RHR Service Water

.7 Sys tem w as comp leted ending the 30-day LCO.

12/31/84 At 2400 hours0.0278 days <br />0.667 hours <br />0.00397 weeks <br />9.132e-4 months <br /> the plant was In normal operation at 465 MWo. gross.

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Iowa' Electric Light and Pbwer Company 1985 January 15,029 DAEC Director, Office of Inspection and Enforcement U. S.' Nuclear Regulatory Commission Washington, D. C.

20555 Attn: Document Control Desk

Subject:

Duane Arnold Energy Center Docket No. 50-331 Op. License DPR-49 December, 1984 Monthly Operating Report

Dear Sirs:

Please find enclosed 12 copies of the Duane Arnold Energy Center Monthly Operating Report for. December,1984. The report has been prepared in accordance with the guidelines of Regulatory Guide 1.16 and distribution has been made in accordance with DAEC Technical Specifications, Appendix A, Section 6.11.1.c and Regulatory Guide 10.1.

Very truly yours,

' Daniel

. Mineck Plant Superintendent - Nuclear Duane Arnold. Energy Center DLM/KSP/kp*

Enclosures File A-118d, TE-5 cc: Director, Office of Inspection Mr. Phillip Ross and Enforcement U. S. Nuclear Regulatory Comission U. S. Nuclear Regulatory Comission Maryland National Bank Bldg.

Region III Washington, D. C.

20555 799 Roosevelt Road Glen Ellyn, IL 60137 (1)

NRC Resident Inspector Director, Office of Management and Mr. Dennis Murdock Program Analysis Central Iowa Power Cooperative U. S. Nuclear Regulatory Comission Box 2517' Washington, D. C. 20555 (1)

Marion, IA 52302 U. S. Nuclear Regulatory Comission Mr. George Toyne, Gen. Mgr.

l ATTN: W. M. Thadani Corn Belt Power Cooperative Phillips Bldg.

Box 508 Washington, D. C. 20555 Humboldt, IA '50548 INP0 Records Center f4 1100 Circle 75 Parkway

i Suite 1500 Atlanta, GA 30339 Duane Ar m'd Energy Center. P.O. Bo,t 351. Cedarliapids, Iowa 52406 319l8517611

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5 DUANE ARNOLD ENERGY CENTER

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PAID, IOWA i

e=w w.no - -

January 15, 1985 T0:

B. Peterson J. Rehnstrom R. McGaughy/ Ward H. Rehrauer E. Matthews W. Bryant R. Salmon D. Wilson R. Hannen C. Mick D. Vest (3 copies)

E. Root P. Seckman W. Nodean FROM:

D. Mineck Plant Superintendent - Nuclear FILE: A-118d, TE-5 Please find attached one copy of the Monthly Operating Report for December 1984, that has been transmitted to the NRC.

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