ML043280403

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

ML043280403
Person / Time
Site:	Arkansas Nuclear
Issue date:	11/15/2004
From:	James D Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
OCAN1 10402
Download: ML043280403 (4)

Text

Entergy Entergy Operations, Inc.

1448 SR. 333 Russellville, AR 72802 Tel 501 858 5000 OCAN1 10402 November 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 October 2004.

There are no new commitments contained in this submittal.

Sincer a E. James Mnager, Licensing DEJ/SLP Attachment(s)

OCAN1 10402 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 D1 Washington, DC 20555-0001 U. S. Nuclear Regulatory Commission Attn: Mr. Thomas Alexion Mail Stop 0-7 D1 Washington, DC 20555-0001

OPERATING DATA REPORT DOCKET NO.

50-313 UNIT NAME Arkansas Nuclear Oi DATE November 15, 2004 COMPLETED BY Steven L. Coffman TELEPHONE (479) 858-5560 rne -Unit I REPORTING PERIOD:

October 2004 1.

2.

3.

4.

5.

6.

Design Electrical Rating (MWe-Net):

850 Maximum Dependable Capacity (MWe-Net):

836 MONTH YR-TO-DATE CUMULATIVE Number of Hours Reactor Was Critical 745.00 6,608.17 207,181.06 Number of Hours Generator On-Line 745.00 6,582.58 204,399.29 Unit Reserve Shutdown Hours 0.0 0.0 817.5 Net Electrical Energy Generated (MWh) 637,714 5,574,351 158,188,983 UNIT SHUTDOWNS Type Method F: Forced Duration of Cause & Corrective Action No.

Date 5: Scheduled (Hours)

Reason' Shutting Comments I

I Down 2 None

SUMMARY

The unit began the month at, or near, full reactor power. Between 10/02/2004 and 10/04/2004, power was reduced to - 96% due to Integrated Control System problems. The unit operated the remainder of the month at, or near, full reactor power.

I 2

Reason:

A Equipment Failure (Explain)

B Maintenance or Test C

Refueling D

Regulatory Restriction E

Operator Training & License Examination F

Administration G

Operational Error (Explain)

H Other (Explain)

Method:

1 Manual 2

Manual Trip/Scram 3

Automatic Trip/Scram 4

Continuation 5

Other (Explain)

OPERATING DATA REPORT DOCKET NO.

50-368 UNIT NAME Arkansas Nuclear (

DATE November 15, 2004 COMPLETED BY Steven L. Coffman TELEPHONE (479) 858-5560 One - Unit 2 REPORTING PERIOD:

October 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 712.47 7,157.52 177,214.34

4.

Number of Hours Generator On-Line 706.95 7,118.50 174,617.51

5.

Unit Reserve Shutdown Hours 0.0 0.0 0.0

6.

Net Electrical Energy Generated (MWh) 702,925 7,145,860.0 151,261,846 UNIT SHUTDOWNS Type Method of F: Forced Duration Shutting Cause & Corrective No.

Date S: Scheduled (Hours)

Reason' Down2 Action Comments 2004-05 041001 F

38.05 B

4 Forced shutdown to repair a Main Feedwater vent stack weld.

SUMMARY

The unit began the month off line, continuing a forced outage to repair a socket weld on a Main Feedwater line vent stack. On 10/02/2004, the unit was tied back to the grid and achieved full power on 10/03/2004. The unit operated the remainder of the month at, or near, full power.

I 2

Reason:

A Equipment Failure (Explain)

B Maintenance or Test C

Refueling D

Regulatory Restriction E

Operator Training & License Examination F

Administration G

Operational Error (Explain)

H Other (Explain)

Method:

I Manual 2

Manual Trip/Scram 3

Automatic Trip/Scram 4

Continuation 5

Other (Explain)