ML20215G857

Monthly Operating Rept for Sept 1986

ML20215G857
Person / Time
Site:	Duane Arnold
Issue date:	09/30/1986
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-86-0751, DAEC-86-751, NUDOCS 8610210150
Download: ML20215G857 (8)

Text

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OPERATIN3 DATA REPORT DOCKET NO. 050-0331 DATE 10-15-86 COMPLETED BY Bradford N. Thomas TELEPHONE 319-851-7309 OPERATING STATUS Notes

1. Uni t Name Duane Arnold Eneray Center

2. Reporting Period September 1986

3. Licensed Thermal Power (MWt):

1658

4. Nameplate Rating (Gross MWe):

565 (Turbine)

5. Design Electrical Rating (Net MWe):

5 38

6. Maximum Dependable Capacity (Gross MWe):

54 5

7. Maximum Dependable Capacity (Net MWe):

5 15

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

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

10. Reasons For Restrictions, if Any:

This Month Yr-to-Da te Cumu la ti ve

11. Hours in Reporting Period 720 6551 102239

12. Number of Hours Reactor Was Cri tical 528.5 5686 73007.9

13. Reactor Reserve Shutdown Hours 0

42.5 192.8

14. Hours Generator On-Line 525.2 5585.4 71144.9

15. Unit Reserve Shutdown Hours 0

0 0

l

16. Gross Thermal Energy Generated (MWH) 677035.3 7128295.3 89734530.3

17. Gross Electrical Energy Generated (MWH) 225654 2393550 30049611

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18. Net Electrical Energy Generated (MWH) 211083.1 2246039.1 28142676.1

19. Uni t Service Factor 72.9 85.3 69.6

20. Unit Availability Factor 72.9 A5.3 69.6

21. Unit Capacity Factor (Using MOC Net) 56.9 66.6 53.4

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22. Uni t Capaci ty Factor (Using DER Net) 54.5 63.7 51.2

23. Uni t Forced Outage Rate 0

2.1 15.0 f

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

l l

Ref uel Outnas currently scheduled for Mid-March.1987

25. If Shut Down At End Of Report Period, Estimated Date of Startup N/A 8610210150 860930 PDR ADOCK 05000331 R

PDR

\\ (9/77)

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3 AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 050-0331 UNIT Duane Arnold Energy Center 5

DATE 10 55-86 (XMPLETED BY Bradford N. Thomas j

TELEPHONE 319-851-7309 l

MONTH Sep tember, 1986 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAIL( POWER LEVEL (MWe-Ne t)

(MWe-Ne t) 1 4 74 17 332 2

503 18 328 3

477 19 3 30 4

4 86 20 332 5

34 1 21 328 6

493 22 233 7

525 23 0

8 523 24 0

9 5 15 25 0

10 4 85 26 0

11 492 27 0

4 12 392 28 0

13 30 2 29 0

14 306 30 0

15

- 309 31 0

16 332 lNSTRUCT IONS On this format, list the average dally unit power level in MWe-Net for each day in the reporting month. Compute ths nearest whole megawatt.

(9/77) l l

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UNIT SHUT DO NS AND POTER REDUCTIONS Osckot Ns, 050-033I Unit Nome D=enen Arsold Er rgy Coat #r Da to in/ts rax REPORT MONT H Sep tember. 1986 Completed by Bradford N.

Thomas Telephone 319-851-7309 en Lo e

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O-O ZZ ZZZZZZ Power voluntarily reduced to 65% for 31 09/05/86 S

B 1

24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> 10 accommodate modifications to the HPCl/RCIC full flow test lines to Condensate Storage Tanks.

AD P

Power reduced to investigate a 12 09/12/86 S

B 1

Recirculation pump high bearing oil tempera ture.

AD P

Plant shutdown to allow maintenance 13 09/22/86 S

194.8 B

1 personnel access to primary containment (drywell) for repair of the Recircula tio.s, pump lube oil sys tem, i

1 2

3 4

Me th od :

Exh i b i t G-l'ns tr u c t i on s F: Forced Reason:

S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Da ta B-Maintenance or Tes t 2-Manual Scram En tr y Sh ee ts for Licensee l

3-Automatic Scram Event Report (LER) File (NUREG-C-Ref ueli ng D-Regu la tory Res tr i c tion 4-Other (Explain) 0161)

E-Opera tor Trai ning & License Examination 5

F-Administrative Exhibit 1-Same Source G-Opera ti ona l Error (Explain)

(9/77)

H-O th er (Explain)

Dsckot No.' 050-0331 Un i t Naco Duaan Arnold Earray Cnet~r Da to 10-15-86 H A JOR /S A F ET Y RELATED MAINTENANCE Comp l e ted by Bradford N. Thomas Telephone 319-851-7309 DATE SY ST EM

. COMPONENT DESCRIPTION 9-3-86 Fire Protection F i re Protec tion yard loop ring Disassembled and cleaned numerous yard loop and header ring header valves.

9-11-86 9-11-86 River Wa ter Supply (RWS)

'D' RWS Pump Adjusted Impeller clearances on IP-Il7D in order to meet ASME discharge delta P req u i remen ts.

9-12-86 Main Steam Line isolation Valve MSlv Limi t Sw i tch Replaced Spline Ilmit sw i tch tripper arm on (MSIV)

'B' outboard MSIV.

9-15-86 Primary Con ta i nanen t (Torus)

Torus Level Transmi tter I ns ta l l ed retrof i t modi f ica tion ki ts to Level Indicating I n s trumen ta ti on a l l ev i a te thermal non-reliability.

9-16-86 S tand by Gas T rea tmer t, (SBGT )

'T emp e ra tu re Controller Cleaned and l u br i ca ted tem p e ra tu re con tro l sw i tch.

9-25-86 High Pressure Coolant i n jec ti on HPCI Test Flow Drag Valve Replaced the HPCI Full Flow Tes t Valve (HPCI) 9-30-86

'A' Recirculation Pump Lube Recirculation Pump Upper Bearing T i gh tened loose fittings and rewired System oil level sw i tches switches.

9-30-86 High Pressure Coolant i n j ec ti on Outboard S team Isolation Valve Replace pi tted valve s tem.

(HPCI) 250V DC Power Sys tem 250V DC Battery Cells Replaced 16 cells in the 250V DC Power Sys tem

Dockot No. 050-0331 Uni t Noms Dueno Arnold Enorgy Cr.n ter Date 10-15-86 Completed by Bradford N. Thomas Telephone 319-851-7309 REFUELING INFORMATION 1.

Name of f aci li ty.

A.

Duane Arnold Energy Cen ter 2

. Scheduled date f or next ref ueling shutdown.

A.

March, 1987 3.

Scheduled date f or res tart following. refueling.

A.

May, 1987 4

Will ref ueling or resumption of opera tion thereaf ter require s technical speci f i ca tion change or other license amendment?

Yes A.

Reload license submi tta l B.

Add i ti ona l MAPLHGR curves for new fuel bundles being I n trod uced for Cycle 9 5

Scheduled date(s) f or submi tting proposed licensing action and supporting I r.f orma tion.

A.

October 1986 8.

Oc tober 1986 6

I mp or ta n t licensing considerations associa ted w i th refueling, e.g.,

new or different fuel design or supplier, unreviewed design or performance i

analys is 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 s torage pool.

y I

A.

a) 368 b) 696 8

The present licensed spent f uel pool s torage capaci ty and the si ze of any increase in licensed storage ca p a c i ty tha t has been req u es ted or is planned, in number of fuel assemblies.

A.

2050 9

The projec ted da te of the last ref ueling that can be discharged to the spent fuel pool assuming the present IIconsed capacity.

i A.

1990 f

a

Deckot No. 050-0331 Uni t Neos Dunno Arnold Enoray-Cnn ter Dato 10-15-86 Comp l e ted by Bradferd N. Thesos Telephone 319-851-7309 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE 9-1-86 At the beginning of the mon th the DAEC was under normal power operation condi tions with 4 74 MWe(not) being provided to th e grid.

9-3-86 At 0627 hours0.00726 days <br />0.174 hours <br />0.00104 weeks <br />2.385735e-4 months <br /> a 14 day Limi ting Condi tion f or Operation (LCO) was entered when the Diesel Generator Diesel Fuel 011 Day Tank Room sprinklers were removed from service to accommoda te disassembly and cleaning of ' numerous Fire Protection yard loop ring header valves.

These valves were returned to service a t 1740 hours0.0201 days <br />0.483 hours <br />0.00288 weeks <br />6.6207e-4 months <br /> thus canceling the

.LCO.

9-9-86 A t 05 34 hours3.935185e-4 days <br />0.00944 hours <br />5.621693e-5 weeks <br />1.2937e-5 months <br /> a 7 day LCO was en tered when the Diesel Fire Pump was vo l un ta ri l y removed from service for planned maintenance.

Pro tec ti v e coverings were I ns ta l l ed over the ba tterl es ' and t h's Fire Pump was re tu rned to service at 1203 hours0.0139 days <br />0.334 hours <br />0.00199 weeks <br />4.577415e-4 months <br /> th u s termi na ti ng the LCO.

9-11-86 At 0900 hours0.0104 days <br />0.25 hours <br />0.00149 weeks <br />3.4245e-4 months <br /> a 14 day LCO was en tered when the Diesel Generator Diesel Fuel Oil Day Tank Room sprinklers were removed from service to accommodate Inspection and cleaning of numerous Fire Protection Yard Loop Ring Header valves.

The LCO was termi na ted at 1509 hours0.0175 days <br />0.419 hours <br />0.0025 weeks <br />5.741745e-4 months <br /> when th e valves were returned to service..

At 1906 hours0.0221 days <br />0.529 hours <br />0.00315 weeks <br />7.25233e-4 months <br /> a 7 day LCO was en tered as the

'B' River Water Supply (RWS) Sys tem was declared Inoperable. The

'B' RWS pump was removed from service for in take area send removal, and the

'D' RWS pump was i

removed from service to accommoda te Impel ler adjus tmen t.

All work was conp l e te d on 9-12-86, and the LCO was terminated at 1937 hours0.0224 days <br />0.538 hours <br />0.0032 weeks <br />7.370285e-4 months <br />.

9-12-86 A t 2156 hours0.025 days <br />0.599 hours <br />0.00356 weeks <br />8.20358e-4 months <br /> th e

'A' Recircula tion Pump was removed from service due to Indica tions of a high motor Upper Bearing lube oil level alarm which opera tors had been receiving during the last few days.

This

^

placed th e plant in Single Loop Opera tion (SLO).

I 9-15-86 At 1045 hours0.0121 days <br />0.29 hours <br />0.00173 weeks <br />3.976225e-4 months <br /> a 30 day LCO was en te red as a torus water level transmitter was removed from service.

A re trof i t mod i f ica ti on k i t 'w a s I ns ta l l ed to elleviate thermal non-rel ia bi l l tv and the uni t was re1urned to service af ter successf ul pos t-mai n tenance tes ti ng.

The LCO was exi ted a t 0726 hours0.0084 days <br />0.202 hours <br />0.0012 weeks <br />2.76243e-4 months <br /> on 9-18-86 9-16-86 A t 0820 hours0.00949 days <br />0.228 hours <br />0.00136 weeks <br />3.1201e-4 months <br /> the

'A' S tandby Gas T rea tmen t (S8GT) Sys tem was removed from service to repair a dri f ting tempera ture con trol ler.

This placed 4

the plant in a 7 day LCO.

The controller was refurbished, callbrated, and re tu rned to service at 1354 hours0.0157 days <br />0.376 hours <br />0.00224 weeks <br />5.15197e-4 months <br /> on 9-18-86 thus canceling th e LCO.

9-22-86 At 084 9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br /> operators commenced reac tor shutdown to accommoda te inves tiga tion of th e

'A' Recirculation Pump upper bearing oli level alarm.

I

Dockot No. 050-0331 Uni t Naac Duenn Arnold Energy Cen tnr Da te 10-15-86 Comp l e ted by Bradford N.

Thomas Telephone 319-851-7309 N ARR AT I VE

SUMMARY

OF OPER AT I NG EXPERI ENCE At 1600 hours0.0185 days <br />0.444 hours <br />0.00265 weeks <br />6.088e-4 months <br /> a 7 day LCO' was en tered when Site Engineers and' Vendor represen ta ti ves determi ned th a t th e plant 250V DC Power Sys tem had a few cells wi th noticeable plate degradation. This in turn rendered the HPCI System inoperable.

(LER 86-019) 9-22-86 At 1948 hours0.0225 days <br />0.541 hours <br />0.00322 weeks <br />7.41214e-4 months <br /> the Mai n Genera tor was taken off line in p repara tion of the planned maintenance ou tage.

9-23-86 The HPCI sys tem LCO was termina ted a t 1138 hours0.0132 days <br />0.316 hours <br />0.00188 weeks <br />4.33009e-4 months <br /> when the Reactor Head Vents were opened as th e plant reached th e cold shutdown con d i ti on.

9-29-86 At 0800 hours0.00926 days <br />0.222 hours <br />0.00132 weeks <br />3.044e-4 months <br /> a 7 day LCO was en tered when the Diesel Fire Pump was removed from service to adj us t the exhaus t line pressure relief valve.

The LCO was termi na ted a t 0957 hours0.0111 days <br />0.266 hours <br />0.00158 weeks <br />3.641385e-4 months <br /> when the fire pump was r e tu r n ed to service.

9-30-86 At the end of the mon th the plant remained in cold shu tdown w i th major maintenance items being performed on:

HPCI Sys tem

1) The I n s ta l l a ti on of a new full flow tes t va lve.

2) The replacement of the valve stem on the ou tboa r.d s team i sol a ti on valve.

IRM

1) The rewiring of the 24V DC Inop relays to the downs tream side of th e Ins trumen t drawer fuses.

This will al l evia te generic annuncia tor response problems which were discovered a t Nor thern S ta tes Power Company 's Mon ticel lo Plan t.

Reac tor Recircula tion Sys tem

1) Troubleshoo ting and repair of the Recirculation Pump Mo tor Upper Bearing Lube Oll Sensing Switches.

250V DC Power Sys tem 1)

Replacement of 16 cells in the oower system circult.

t^

Iowa Electric Light and Power Company October 15, 1986

-DAEC-86-0751 Director, Office of Inspection and Enforcement U. S. Nuclear Regulatory Comission Washington, D. C.

20555 Attn: Document Control Desk

Subject:

Duane Arnold Energy Center Docket No. 50-331 Op. License DPR-49 September, 1986 Monthly Operating Report

Dear Sirs:

Please find enclosed 12 copies of the Duane Arnold Energy Center Monthly Operating Report for September, 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, Daniel L.

neck P1 ant Superintendent - Nuclear Duane Arnold Er.ergy Center DLM/BNT/pl*

Enclosures File A-118d cc: Director, Office of Inspection Mr. Phillip Ross and Enforcement U. S. Nuclear Regulatory Comission U. S. Nuclear Regulatory Commission Maryland National Bank Building 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 Commission Box 2517 Washington, D. C. 20555 (1)

Cedar Rapids, IA 52406 U. 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 Humooldt, IA 50548 INP0 Records Center

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1100 Circle 75 Parkway

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