ML20207C330

Monthly Operating Rept for June 1986

ML20207C330
Person / Time
Site:	Duane Arnold
Issue date:	06/30/1986
From:	Mineck D, Bernard Thomas IES UTILITIES INC., (FORMERLY IOWA ELECTRIC LIGHT
To:	NRC OFFICE OF ADMINISTRATION (ADM), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
DAEC-86-513, NUDOCS 8607210341
Download: ML20207C330 (8)

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OPERATING DATA REPORT DOCKET NO. 050-033I DATE 07-15-86 COMPLETED By Bradford N. Thomas TELEPHONE 319-851-7309 1

OPERATING STATUS Notes

1. Unl t Name Duane Arnold Energy Center

2. Reporting Period June, 1986

3. Licensed Thermal Power (MWt): 1658

4. Namepla te Rating (Gross MWe): 565 (Turbine)

5. Design Electrical Rating (Net MWe): 538

6. Maximum Dependable Capaci ty (Gross MWe): 54 5

7. Maximum Dependable Capaci ty (Net MWe): 5 15 l 8. If Changes Occur in Capaci ty Ratings (items Number 3 Through 7) Since the Last Report, Give Reasons f

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9. Power Level to Which Res tricted, if Any (Net MWe):

10. Ressons For Res trictions, if Any:

4 I

l This Month Yr-to-De te Cumu la tive 1

II. Hours in Reporting Period 720 4343.0 100031

12. Number of Hours Reactor Was Cri tlcal 385.8 3483.6 70805.5 l 13. Reactor Reserve Shu tdown Hours 42.5 42.5 192.8 I

14. Hours Genera tor On-Line 30 7.5 3389.5 68949

15. Uni t Reserve Shutdown Hours 0 0 0

16. Gross Thermal Energy Generated (MWH) 692700 444714 7 87053382 i 17. Gross Electrical Energy Generated (MWH) 23I377 1504082 2916014 3 r

18. Net Electrical Energy Generated (MWH) 217429 1412054 27308691 l 19. Unit Service Factor 42.7 78.0 68.9

. 20. Uni t Availabili ty Factor 42.7 78,0 68.9

21. Uni t Capaci ty Factor (Using MOC Net) 58.6 63.1 53.0

22. Uni t Capaci ty Factor (Using DER Net) 56.1 60.4 50.7 J

1 23. Uni t Forced Outage Rate 28.3 3.4 15.4

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

)t 1

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! 25. I f Sh u t Dow n A t End O f Repor t Per lod, Es ti ma ted Ds te of S ta r tu p s i

A e 3V ' (9/77) 0607210341 G60630 -

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AVERAGE DAILY UNIT POTER LEVEL DOCKET NO. 050-0331 UNIT Duane Arnold Energy Center DATE 07-15-86 COMPLETED BY Bradford N. Thomas TELEPHONE 319-851-7309 MONTH June, 1986 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 449 17 0 2 409 18 177 3 4 34 19 321 4 486 20 3 90 5 516 21 464 6 511 22 464 7 473 23 483 8 139 24 473 9 0 25 494 10 0 26 469 11 0 27 449 12 0 28 476 13 0 29 485 14 0 30 490 15 0 31 -

16 0 INSTRUCTIONS On this format, list the average daily unit power level in MWe-Net for each day In the reporting nonth. Q)mpute the nearest whole megawatt.

(9/77) l l

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UNIT SHUT DOUNS AND P03ER REDUCTIONS Dockot No. 050-0331 Unit Nano Duano Arnold Enorgy Cnn t+r Da te 07/15/86 REPORT MONT H June, 1986 Completed by Bradford N. Thoeas Telephone 319-851-7309 m

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c en No. Dato AE e s e ]f Event $$

>o oI a o Cause e o e g3 , Report # mo ao o~ y*y o O

6 06/08/86 S .,108.7 8 1 - ZZ ZZZZZZ Plant removed f rom service to accomodate the electrical tie-in of a newly installed auxillary trans f ormer.

06/13/86 F 78.6 A 2 86-017 SJ FCV A manual scram at 5% of rated power was Initiated during reactor startup following a planned maintenance outage when feedwater f low control problems caused reactor level to apprmch the low level scram o

setpoint of 170 inches above Top of Active Fuel. (LER 86-017)

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06/l6/86 F 42.5 A 4 - TD P Reactor In reserve shutdown. Genera tor remained off line due to problems w i th the turbine emergency bearing lube oil pump.

I 2 3 4 F: Forced Reason: Method ExhIbl t G-Ins tructions S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Da ta B-Maintenance or Tes t 2-Manual Scram Entry Shee ts for Licensee C-Refueling 3-Au tome ti c Scram Event Report (LER) File (NUREG-D-Regu la tory Res tr i c ti on 4 -O th e r (Explain) 0161)

E-Opera tor Trai ni ng & License Examination F- Ad mi n i s tra ti ve 5 G-Opera tiona l Error (Explain) Exhibit 1-Same Source (9/77) H-O th er (Explain)

Dockst No. 050-0331 Unit Nams Dunns Arnold En rgy Can te r Da to 0 7- 15-86 M A JOR /S AF ET Y RELATED MAINTENANCE Comp l e ted by Bradford N. Thomss Telephone 319-851-7309 DAT E SYSTEM COMPONENT DESCRIPTION 06/04/86 Fire De tec ti on Con trol Room Fire Detection Panel Replaced a f a u l ty panel emergency power supply.

06/10/86 On S i te Power Auxiliary Transformer Electrical tie-in of th e newly ins tal led Auxiliary Transformer.

06/10/86 Saf ety Rel a ted Mo tor Opera tors Limitorque Motor Opera tors inspection and replacement of 2 Low Pressure Core Spr ay (LPCS) L i mi torq ue Mo to r Ope ra tors i n ternal wiring to e nsure compliance w i th Environmental Qua l i f ica tion (EQ) S ta nda rd s.

06/13/86 Feed wa ter Feedwater Regu la ti ng Valves Replaced / cleaned out Moore pos i tioners th a t CV-1579, CV-1621 became clogged w i th i ns trumen t air desiccant ma teri al .

(LER 86-017) 06/23/86 Fire Protection Electric Fire Pump Performed Quarterly Visual inspection of the E l ec tr ic Fire Pump.

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Docket No. 050-0331 Unit Name Duana Arnold Ennrgy Cen ter Date 07-15-86 Completed by Bradford N. Thomas Telephone 319-851-7309 REFUELING INFORMATION

1. Name of f acili ty.

A. Quane Arnold Energy Cen ter

2. Scheduled da te for next refueling shu tdown.

A. February, 1987

3. Scheduled d a te for res tar t following refueling.

A. April, 1987 4 Will refueling or res ump ti on of op e ra ti on thereaf ter require a technical speci f ica tion change or other license amendment?

Yes A. Reload license submittal B. Addi tiona l MAPLHGR curves for new fuel bundles being Introduced for Cycle 9 5 Scheduled da te( s ) for submitting proposed licensing action and supporting inf orma tion.

A. October 1986 8 October 1986 6 I mpor ta n t licensing cons i dera ti ons associated w i th refueling, e.g., new or different fuel design or supplier, unreviewed design or performance enalysis methods, significant changes in fuel 'd e s i g n , new opera ti ng procedures.

None 7 The number of fuel assemblies (a) In the core and (b) in the spent fuel s torage pool.

A. a) 368 b) 696 8 The present licensed spent fuel pool storage ca pa c i ty and the sl2e of any increase in licensed storage capac i ty th a t has been reques ted or is planned, in number of fuel assemblies.

A. 2050 J

9 The projected d a te of the last refueling that can be discharged to th e j spent fuel pool assuming th e present licensed capacity. I A. 1998

. . . - _ . . _ . . ~ - - -- .- . . - - - - - - - - . - . . -- --- - - -- . --- .

, Docket No. 050-0331 Uni t Nams Duena Arnold Energy Ca n tor Da te 0 7-15-86 f Comp l e ted by Bradford N. Thomas Telephone 319-851-7309 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE i 06/01/86 At the beginning of the mon th the DAEC was in normal power operation

} with 449 MWe (net) being provided to th e grid.

06/02/86 A t 0403 hours0.00466 days <br />0.112 hours <br />6.66336e-4 weeks <br />1.533415e-4 months <br /> opera tors noticed the main condenser vacuum to be decreasing. Inves tiga tion revealed the Air Ejector Condensate Return Pump had failed when the thermal overload relays did not function properly. The pump and th e rma l overload were replaced and the pump re tu r n ed to service on 06/03/86 at 1130 hours0.0131 days <br />0.314 hours <br />0.00187 weeks <br />4.29965e-4 months <br />.

4 i 06/04/86 At 1805 hours0.0209 days <br />0.501 hours <br />0.00298 weeks <br />6.868025e-4 months <br /> a 14 day LCO was entered when the Control Room Fire

! De tection Panel was declared inoperable when the panel trou b l e alarm was received. A bad power supply was changed out and the panel re tu r n e d to its operable s ta tus after successful pos t main tenance tes ting a t 1632 hours0.0189 days <br />0.453 hours <br />0.0027 weeks <br />6.20976e-4 months <br /> on 06/16/86.

! 06/05/86 At 0724 hours0.00838 days <br />0.201 hours <br />0.0012 weeks <br />2.75482e-4 months <br /> the "A" S ta nd by Filter Unit was declared Inoperable and a

) 7 day LCO was entered when a flow Indica ting controller was found out i of ca l i bra tion during a preventive maintenance evolution. The

controller was recalibrated and successfully passed post maintenance i

tes ti ng requ i remen ts. The sys tem was then r e tu rn ed to service at 1333

] hours thus term i na t i ng the LCO.

i l 06/07/86 At 1115 hours0.0129 days <br />0.31 hours <br />0.00184 weeks <br />4.242575e-4 months <br /> the Turbine Emergency Bearing Lube Oll Pump was declared Inoperable due to a failed overload relay. The pump was th e n sont offsite for vendor overhauling. New overloads were I ns ta l l ed and the overhauled pump re i ns ta l l ed on 06/16/86. The sys tem was declared operable af ter successf ul post maintenance tes ti ng a t 054 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> on 06/18/86 l 06/08/86 At 0705 hours0.00816 days <br />0.196 hours <br />0.00117 weeks <br />2.682525e-4 months <br /> operators began reducing power in anticipation of re a c to r j shu tdown for a planned maintenance outage to electrically tie in the newly ins talled Auxillary Transf ormer. At 144 0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> the main tu r b i n e was removed from the grid. At 1753 hours0.0203 days <br />0.487 hours <br />0.0029 weeks <br />6.670165e-4 months <br /> all con trol rods were 1 full-in.

j 06/09/86 A t 04 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br /> the plant was placed in the Cold Shu tdown Mode.

06/10/86 At 0825 hours0.00955 days <br />0.229 hours <br />0.00136 weeks <br />3.139125e-4 months <br /> the Auxillery Transformer began a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> load test which was completed satisf ac torily on 06/11/86 3

06/12/86 At 1710 hours0.0198 days <br />0.475 hours <br />0.00283 weeks <br />6.50655e-4 months <br /> operators commenced reactor s ta r tu p . At 1759 hours0.0204 days <br />0.489 hours <br />0.00291 weeks <br />6.692995e-4 months <br /> the reactor achieved cr i ti ca l i ty .

)

06/13/86 A t 0322 hours0.00373 days <br />0.0894 hours <br />5.324074e-4 weeks <br />1.22521e-4 months <br /> a manual scram was i n i ti a ted at 55 of rated power during I reactor s tar tu p when reac tor wa ter level was approaching th e low level scram s e tp o i n t due to f eedwa ter f low con trol problems.

J (LER 86-017) t 4

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. Docke t No. 050-0331 Uni t Namo Dueno Arnold Energy Cen tor Da te 0 7-15-8 6 Comp le ted by Bradford N. Thomas Telephone 319-851-7309 NARRATIVE

SUMMARY

OF OPER AT I NG EXPERI ENCE 1

06/13/86 At 1942 hours0.0225 days <br />0.539 hours <br />0.00321 weeks <br />7.38931e-4 months <br /> reac tor s tartup commenced.

06/16/86 At 0935 hours0.0108 days <br />0.26 hours <br />0.00155 weeks <br />3.557675e-4 months <br /> op era tors con ti nued pulli ng con trol rods in an ti ci pa tion of power s tar tu p.

06/18/86 At 0432 hours0.005 days <br />0.12 hours <br />7.142857e-4 weeks <br />1.64376e-4 months <br /> the Mai n Genera tor was synchronized to the grid.

At 0844 hours0.00977 days <br />0.234 hours <br />0.0014 weeks <br />3.21142e-4 months <br /> all n on-es sen ti a l loads were tra ns f erred to the newly i ns ta l led Auxillary Transformer.

06/23/86 At 0720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> a 7 day LCO was entered when the "A" S ta nd by Fil ter Uni t was removed from service for planned ma i n tena n ce. The Con trol Room j Hea ting and Ventilation Tempera tu re Element and Pressure Ol f f eren tia l Sw i tch were ca l l bra ted, and the sys tem rerurned to serv ice at 1027 hours0.0119 days <br />0.285 hours <br />0.0017 weeks <br />3.907735e-4 months <br /> on 06/24/86 At 0736 hours0.00852 days <br />0.204 hours <br />0.00122 weeks <br />2.80048e-4 months <br /> a 7 day LCO was en tered when the elec tr ic f ire pump was removed from service for i ts quarterly visual Inspection. The LCO was cancelled at 100 2 hou rs w i th the pump being re tu rned to serv i ce.

06/24/86 At 1246 hours0.0144 days <br />0.346 hours <br />0.00206 weeks <br />4.74103e-4 months <br /> a 7 day LCO was entered when the "B" S ta nd by Fil ter Uni t was removed from service for planned maintenance. The Control Room Hea ting Ven ti la tion Tempera ture Element and Pressure Dif f erential Swi tch were ca l i bra ted , and the sy s tem re tu r ned to service at 140A hours.

06/26/86 At 0442 hours0.00512 days <br />0.123 hours <br />7.308201e-4 weeks <br />1.68181e-4 months <br /> the Diesel Fire Pump was removed from service and a 7 day LCO was en tered when an Exhaus t Line Discharge Valve was discovered leaking. The valve was disassembled, cleaned, reassembled, and r e tu rned to serv!ce. The LCO was termi na ted at 1558 hours0.018 days <br />0.433 hours <br />0.00258 weeks <br />5.92819e-4 months <br /> with the pump being roturned to its normal lineup.

06/30/86 At the end of the mon th th e Duane Arnold Energy Center was in normal power opera tion wi th 490 MWe (not) being provided to the grid.

J d

Iowa Electric Light and Power Company July 15,1986 DAEC-86-513 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 i June, 1986 Monthly Operating Report

Dear Sirs:

Please find enclosed 12 copies of the Duane Arnold Energy Center Monthly Operating Report for June,1986. 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,

/kk Daniel L. Mineck Plant Superir.tendent - Nuclear Duane Arnold Energy Center DLM/BNT/pl*

Enclosures File A-118d, TE-5 cc: Director, Office of Inspection Mr. Phillip Ross and Enforcement U. S. Nuclear Regulatory Commission U. S. Nuclear Regulatory Commission Maryland National Bank Building Region III Washington, D. C. 20555 799 Roosevelt Road Glen Ellyn, IL 60137 (1) NRC Residdnt Inspector Director, Office of Management and Mr. Dennis Murdock Program Analysis Central Iowa Power Cooperative U. S. Nuclear Regulatory Commission Box 2517 Washington, D. C. 20555 (1) , Cedar Rapids, IA 52406 s'

V. S. Nuclear Regulatory Commission Mr. Russ Gamble ATTN: Mr. M. Thadani Corn Belt Power Cooperative Phillips Building 1300 13th Street North Washington, D. C. 20555 Humboldt, IA 50548 LNPO Records Center L100 Circle 75 Parkway 4

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