ML20099E889

Monthly Operating Rept for Oct 1984

ML20099E889
Person / Time
Site:	Duane Arnold
Issue date:	10/31/1984
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-84-730, NUDOCS 8411260127
Download: ML20099E889 (9)

Text

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OPERATING DATA RER)RT :

s DG KET NO. 050-0331 DATE 11-15-64 C04PLETED BY Kenneth S. Putnam s TELEPHEE 319-851-7456 t

OPERATING STATUS Petes

1. Unit Nane Ouene A rnold EnerDy Center

2. Reporting Period October,1984

3. Licensed Thereal Power (Mwt): 1658 4 I

4. mmeplete Re ting (Gross me): -%5

5. Design Electrical RetIng (Not MWe): 538 .

6. Maximun Dependable capacity (Gross We): 54G

7. Havimun Dependable Capacity (Not NWe): 515 8 If Changes Occur in Capacity thfings (items Number 3 Through 7) Since the Last Poport, Give Reasons:

9. Power Level to Which Restricted, if Any (No. MWe):

10. Reasons For Restrictions, if Any:

This Month Yr-to-Deto- Cunula t Ivo

11. Hours in Reporting Perlod 745.0 7320.0 85464 A

12. Nmber of Hours Reactor Was Critical 223A 61338 4 5387.1

13. Poactor Reserve $hutdown tburs 0 .0 150.3 150.3

14. > bur s Generefo r On-L i n e 158.0 5201 A 59644.3

15. Unit Reserve Shutdown Iburs 0 ,0 04 0 ,0

16. Cross Thermal Energy Generated (WH)  % 513 7341820 75090387

17. Gross Electrical Energy Generated (mH) 26210 2442787 25136844

18. mt Electrical Energy renerated (WH) 23633 22 % 729 23535320

19. Unit Serv ice Fector 21.2 71.1 69.8

20. Un i t Av ell eb il i ty Fac to r 21 .2 71.1 69.8'

21. Unit Capacity Factor (Using M[C Net) 6 .2 60.9 53.5'

22. Un It CepacIty Factor (UsIng itR

• t) 5 .9 58 .3 51 .2

23. Unit Forced Outano Rete 0 .0 13.2 17 A 24 th utd own s Schod ul ed Ov er Nex t 6 Months (Type , (b te , and Dur ation of Eac h):

R ef uel Outece. F ebruary 1985

25. If $ hut Down At Er:1 ' Of Re port Per iod , E st ima ted Da te of Startie s l 8411260127 841031 PDR ADOCK 0S000331 N

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AVERAGE DAILY UNIT POWER LEVEL :

a;f DOCKET NO. 050-0331 UNIT Dueno Arnold Enorar Center DATE 11-15-84

• COIPLETED BY Kenheth S. Putnam

., TELEPHONE 319-851-7456 MONTH October, 1904 '

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Ne t) (MWo-Not)

I 'O 17 0 2 0 18 0 3 0 17 0 4 0 20 0 5 0 21 0 6 0 22 0 7 0 23 0 8 0 24- 0 9 0 25 31 10 0 26 117 11 0 27 94 12 0 28 179 13 0 29 170 14 0 30 160 15 0 31 207 18 0 ,

1NSTRUCT10NS On this format, list the average dally unit power level in Nue-Net for each day In the reporting month. Compute to  ;

the nearest whole megawatt.

(9/77) l F

r

7 UNIT SHUTD0tNS A D POWER REDUCilONS D>ckot N3 r$*-0331 '

l Unit Ccm3 De* Areald E"orev'Co'ter. .

Date 11-15-84 ,-+

REPORT MONTH October, 1984 Completed by Kenneth S. Putnee Telephone 319-851-7456 l m e a.n c w cn 5- Eo +2 e t

o^ cu oco eV cV o ;E 8 u !; t' L'c*a5** t'8 g3 Caus. a Corr.ctiv.

pgg jp l No. Date Q; 2g g Event o g Action to F-

$2C, y ** j o: Report # g Prevent Recu rrence k cx u o

c3 8 9-29-84 5 587.0 B i Scheduled' General Maintenance.

Outage Continued from September i

l 1 2 3 4 F: Forced Reason: Method: Exhibit G-Instructions 5: Scheduled A-Eq u i pmen t Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or. Test Manual Scram. Entry Sheets for Licensee C-RefueIIng 3-Automatic Scree. Event Report (LER) File ( NUR EO l D-Regulatory Restriction 4-Other(Explain) 0161)

- E-Operator Training & License Examination f F-Administrative 5 G-Operational Error (Explain) Exhi bi t 1-Same Source (9/77) H-Other(Explain)

I a

Decket Wm. 050-0331

• Unit Duane Arnold Energy Center ,..;

Date November, 1984-MAJOR SAFETY RELATED MAINTENANCE Completed by Kenneth S. Putnas Telephone 319-851-7456 4 DATE SYSTEM COMPONENT' DESCRIPTIDN l

10-3-84 Main Steam Main Steam Isolation Valves Cleaned and lubricated spring guides on actuators, i 10-23-84 HPCI MOV-2202 HPCI Turwine Steam Supply Disassembled and r ep a i r ed valve to prevent. packing' leaking.

I 10-20-84 Condensate Storage ,

Condensate Storage Tank (s) Dralned and Inspected.

10-21-84 HPCI Steam Leak Detection System Temperature Sw*tches Installed time delay to reduce HPCl Steam-Leak Detection system's susceptability to.

spurious, Isolation signals folloeing loss of offsite power. ,-

(LER 84-28 Update Pending) e v v ~,"

a 11 .

m e e Docket No. 050-0331 Unit Duane Arnold Energy Ctr Date 11-15-84

~ Completed by Kenneth S. Putnam Telephone 319-851-7456 REFUELING INFORMATION

1. Name of facility.

A. Duane 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.

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

C. Revised Spent Fuel Storage Technical Speelfications.

O. Supplerental Reload Llconse 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. December, 1984 8 Submitted D. December, 1984 6 Important Ilconsing considerations associated with refueling, e.g., new or different fuel design or supplier, unrevlowed design or performance analysis methods, significant changes in fuel design, new operating procedures.

5 GE Lead test assemblies which incorporate advanced fuel designs will 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 L. . _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _

j,. . g.

REFUELING I N FOR MAT I ON ' (C on t i n u ed )

8 . T he pre sen t l ic en sed s pen t f uel pool storego ca pacity a nd t he size of an y i nc rea se in l ic en sed storag e capac ity tha t ha s been recue sted or Is-p l an n ed , in n um b er o f f uel a ssem bl ies .

A. 2050 9 T he p roj ec t ed d a te o f t h e last ref uel ing t ha t c an be d i sc ha rg ed to the s pen t fuel poo l a s s um ing the pr esen t l ic en sed ce pac i ty .

A. 1998 I

I D

9 T

4

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'Drak t ca. 055-0331 Ualt Dua96 Arenid E**rav Ctr

'Dete 11-15-64 Com p l e ted by Kenneth S. Putnam Telephone 319-851-7456 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE 10-01 At 0000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> the reactor was in cold shutdown continuing the scheduled maintenance outage that began 9-29-84 10-15 4 Special testing of the HPCI steem leak' detection system was conducted regarding Temperature Switch and Temperature Differential switch response to loss and restoration of AC power.

(LER 84-028)

(Update pending) 10-19-84 A sample of oil In the "B" Cooling Tower power supply transformer revealed a deterioration of Insulating properties. The transf ormer was removed from service for repair. No failure of. .

the transformer occurred.

10-20-84 The' reactor water cleanup s y s t em isolated due to a spurious signal from the leak detection system.

(LER 84-036) 10-21-84 A minor design change to the HPCI steam leak detection system was completed which eliminated the potentlal for spurlous HPCI Isolation on restoration of vital (AC) power.

(LER 84-028)

(Update pending) 10-21-84 At 2127 hours0.0246 days <br />0.591 hours <br />0.00352 weeks <br />8.093235e-4 months <br /> the reac tor was critical .

10-22-84 At 0640 hours0.00741 days <br />0.178 hours <br />0.00106 weeks <br />2.4352e-4 months <br /> the reactor was driven subcritical for routine drywell entry and Inspection. At 0938 hours0.0109 days <br />0.261 hours <br />0.00155 weeks <br />3.56909e-4 months <br /> the reactor was again critical.

At 1600 hours0.0185 days <br />0.444 hours <br />0.00265 weeks <br />6.088e-4 months <br /> condenser conductivity was noted to be increasing indicating a condenser tube leak. At 1800 hours0.0208 days <br />0.5 hours <br />0.00298 weeks <br />6.849e-4 months <br />, power reduction began in anticipation of startup delay for repair of condenser tube leaks.

10-23-84 At 1108 hours0.0128 days <br />0.308 hours <br />0.00183 weeks <br />4.21594e-4 months <br /> the reactor was again critical and placed in Hot.

Standby swalting completion of condenser repales.

10-24-84 At 1010 hours0.0117 days <br />0.281 hours <br />0.00167 weeks <br />3.84305e-4 months <br /> a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> LCO was entered and an Unusual Event was declared when surveillance testing Indicated both fuel oli transfer pumps for the Diesel Generators were slightly below ASNE limits for flow rate. The Diesel Generators were conservatively declared inoperable. Additional Investigation determined that the transfer pumps performance was fully acceptable. The unusual Event and all LCO's were ended by 1922 hours0.0222 days <br />0.534 hours <br />0.00318 weeks <br />7.31321e-4 months <br />.

3

.. .5 s V',!

NARRAT I VE SUMM ARY 00- OPER A T ING EXPER IE NC E' (Co ntin ued) v.

- >' l 0 -2 5 -8 4 Po w er i ncrea se c ommenc ed again f ol l ow l og comple tion o f cond en ser repa ir s and at 1902 hours0.022 days <br />0.528 hours <br />0.00314 weeks <br />7.23711e-4 months <br /> the Po l n Ge n er a to r wa s o n- l in e . Power l ev el s were l im i t ed to a pprox ima tely 405 by t he Inoper eb il ity o f the BOP mec han Ic el draft cooling to we r powe r su'p p l y tr an s fo rm er s .

The cool Ing ' towers were opera ting in a natural d ra f t m ode .

10-28-84 At 1920 re ac tor cool ent wa te.r co nd uc t iv i ty wa s no ted to be I nc rea si ng ' due to sus pec ted resin inc ur si o n. The pH o f reac tor i I

cool ent wa t er wa s s ub se cuen fl y meas ur ed a nd fo u nd to b e 5.05

( out sid e the acceptabl e norm al rang e o f 5. 6 to 8. 6 ) . A 24-ho ur LC0 wa s en ter ed to restore t he p H l ev el to acce p tabl e i im its .

10-29-84 Te sting o f reac tor cool ent wa ter f o u nd t he p H re s tor ed to en acc eptab l e 5. 86 at 08 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> end Ing the LCO.

10-30-84 The "B" D ie sel Gen era tor wa s d ecl er ed Ino per eble a s a res ul t of i n term l tten t rec eipt o f field g ro un d al arm s. A 7-day U:0 ' I

( La t er I nve st iga t io n de term in ed t hi s to be en I c omm e nc ed .

Ind Ic ation probl em onl y .)

10-31-84 At 2400 ho ur s t he unit was in no rm el o pera t ion at 180 PWe s (pross).

7 lowa Electric Light and Ibwer Company 1984 November DAEC 15}30 Director, Office of Inspection and Enforcenent U. S. Nuclear Requiatory Commisston Washington, D. C. 20555 Attn: Docisnent Control Desk

Subject:

Duane Arnold Energy Center Docket No. 850-331 Op. License DPR-49 October,1984 Monthly Operating Report

Dear Sirs:

Please find enclosed 12 copies of the Duane Arnold Enerny Center Monthly Operating Report for October,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 Requiatory Guide 10.1.

Very truly yours, h (

Daniel L. 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 Commission U. S. Nuclear Regulatory Comission Maryland National Bank Ridq.

Reqion !!! Washington, D. C. 20555 744 Roosevelt Road Glen Ellyn, IL 60137 (1) NRC Resident inspector Director, Office of Manaqement and Mr. Dennis Murdock Progran Analysis Central towa Power Cooperative U. S. Nuclear Regulatory Connission Box 2517 Washington, D. C. 20555 (1) Marion, IA 52302 U. S. Nuclear Regulatory Comnission Mr. George Toyne, Gen. Mqr.

ATTN: Mr. M. Thadani Corn Belt Power Cooperative Phillips Bldq. Box 508 Washington, D. C. 20555 Humboldt, IA 50548 INPO Records Center >

d 1100 Circle 75 Parkway 1 Suite 1500 g Atlanta, GA 30339 IJuane Arnold t.nergy Center e P.t1. Ikn Jai e Ced.nr li.nphie, lawn 32406 e 3 89 ASI48II m