0CAN090405, August 2004 Monthly Operating Report for Arkansas Nuclear One Units 1 and 2

August 2004 Monthly Operating Report for Arkansas Nuclear One Units 1 and 2

ML042660409
Person / Time
Site:	Arkansas Nuclear
Issue date:	09/15/2004
From:	James D Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
0CAN090405
Download: ML042660409 (4)

Text

Entergy Operations, Inc.

Entergy 1448 S.R. 333 RusseIlville, AR 72802 Tel so1 858 5000 OCAN090405 September 15, 2004 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001

Subject:

Monthly Operating Report Arkansas Nuclear One - Units 1 and 2 Docket Nos. 50-313 and 50-368 License Nos. DPR-51 and NPF-6

Dear Sir of Madam:

Arkansas Nuclear One (ANO), Units 1 and 2 Technical Specifications 5.6.4 and 6.9.1.6, respectively, require the submittal of a Monthly Operating Report. The purpose of this letter is to complete the reporting requirement for August 2004.

There are no new commitments contained in this submittal.

,--incerely Dal E. James M ager, Licensing EJ/SLP Attachment(s)

>,7

OCAN090405 Page 2 cc: Dr. Bruce S. Mallett Regional Administrator U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-8064 NRC Senior Resident Inspector Arkansas Nuclear One P.O. Box 310 London, AR 72847 U. S. Nuclear Regulatory Commission Attn: Mr. Drew Holland Mail Stop 0-7 DI Washington, DC 20555-0001 U. S. Nuclear Regulatory Commission Attn: Mr. Thomas Alexion Mail Stop 0-7 Dl Washington, DC 20555-0001

OPERATING DATA REPORT DOCKET NO. 50-313 1 UNIT NAME Arkansas Nuclear One - Unit I DATE September 15, 2004 COMPLETED BY Steven L. Coffman TELEPHONE (479) 858-5560 REPORTING PERIOD: August 2004

1. Design Electrical Rating (MWe-Net): 850

2. Maximum Dependable Capacity (MWe-Net): 836 MONTH YR-TO-DATE CUMULATIVE

3. Number of Hours Reactor Was Critical 744.00 5.143.17 205.716.06

4. Number of Hours Generator On-Line 744.00 5,117.58 202,934.29 S. Unit Reserve Shutdown Hours 0.0 0.0 817.5

6. Net Electrical Energy Generated (MWh) 629,209 4,325,641 156,940,273 UNIT SHUTDOWNS Type Method F: Forced Duration of Cause & Corrective Action No. Date S: Scheduled (Hours) Reason' Shutting Comments I =Down 2 None I IIII

SUMMARY

The Unit operated the entire month at or near full reactor power.

I 2 Reason: Method:

A Equipment Failure (Explain) I Manual B Maintenance or Test 2 Manual TriplScram C Refueling 3 Automatic Trip/Scram D Regulatory Restriction 4 Continuation E Operator Training & License Examination 5 Other (Explain)

F Administration G Operational Error (Explain)

H Other (Explain)

OPERATING DATA REPORT DOCKET NO. 50-368 UNIT NAME Arkansas Nuclear One - Unit 2 DATE September 15, 2004 COMPLETED BY Steven L. Coffman TELEPHONE (479) 858-5560 REPORTING PERIOD: August 2004

1. Design Electrical Rating (MWe-Net): 912

2. Maximum Dependable Capacity (MWe-Net): 858 MONTH YR-TO-DATE CUMULATIVE

3. Number of Hours Reactor Was Critical 744.00 5,795.15 175,851.97

4. Number of Hours Generator On-Line 727.00 5,761.65 173,260.66 S. Unit Reserve Shutdown Hours 0.0 0.0 0.0

6. Net Electrical Energy Generated (MWh) 719,361 5,791,528.0 149,907,514 UNIT SHUTDOWNS Type Method F: Forced Duration of Cause & Corrective Action No. Date S: Scheduled (Hours) Reason' Shutting Comments Down 2 2004-03 040829 S 12.92 A 5 Main Turbine Generator taken off line to replace Generator Stator Cooling strainer. Reactor Remained critical.

2004-04 040829 F 4.08 A 5 Main Turbine Anti-Motoring trip.

Reactor Remained Critical

SUMMARY

The Unit began the month at or near full reactor power. On 08/29/2004, the Main Turbine was taken off line to replace a Main Generator Stator Water Cooling system strainer. The Unit was briefly reconnected to the grid that same day when the Main Turbine tripped on anti-motoring. The Unit was tied back to the grid on 08/30/2004, and achieved full reactor power on 08/31/2004. The unit ended the month at, or near full reactor power.

I 2 Reason: Method:

A Equipment Failure (Explain) I Manual B Maintenance or Test 2 Manual TriplScram C Refueling 3 Automatic Trip/Scram D Regulatory Restriction 4 Continuation E Operator Training & License Examination 5 Other (Explain)

F Administration G Operational Error (Explain)

H Other (Explain)