ML041410204

April 2004 Monthly Operating Report for Columbia

ML041410204
Person / Time
Site:	Columbia
Issue date:	05/12/2004
From:	Oxenford W Energy Northwest
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
G02-04-092
Download: ML041410204 (3)

Text

ENERGY NORTHWEST PO. Box 968 z Richiand, Washington 99352-0968 May 12, 2004 G02-04-092 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001

Subject:

COLUMBIA GENERATING STATION, DOCKET NO. 50-397 MONTHLY OPERATING REPORT APRIL 2004

Dear Sir or Madam:

Transmitted herewith is the Monthly Operating Report for the month of April 2004 as required by Technical Specification 5.6.4.

Respectfully,.

Ws,.

Plant neral Manager Mail Drop 927M

- Attachments cc: BS Mallett - NRC RIV WA Macon - NRC NRR NRC Senior Resident Inspector - 988C TC Poindexter - Winston & Strawn INPO ANI Library Utility Data Institute RN Sherman - BPA / 1399

OPERATING STATUS REPORT for Columbia Generating Station Date: May 1, 2004

1. Docket: 50-397

2. Reporting Period: April 2004

3. Utility

Contact:

Patricia Campbell (509) 377-4664

4. Design Electrical Rating (Net MWe): 1153

5. Maximum Dependable Capacity - summer (Net MWc): 1107 MONTH YEAR CUMULATIVE

_ -Hours ReaotQ-Critical 719.0 - _2,903.0 - 129,76L5.-

7. Hours Generator On-Line 719.0 2,903.0 126,316.6

8. Unit Reserve Shutdown Hours 0.0 0.0 3,274.7

9. Net Electrical Energy (MWH) 798,993 3,208,542 126,076,194

UNIT SHUTDOWNS DOCKET NO.: 50-397 UNIT NAME: Columbia Generating Station DATE: May 1, 2004 COMPLETED BY: P. Campbell TELEPHONE: (509) 377-4664 REPORT PERIOD: April, 2004 I No. Date Type F: Forced S: Scheduled Duration (Hours) Reason (1) f Method of Sutn

(

Cause / Corrective Actions Comments NA _ I_ I I_ _ I SlUMARY: Columbia Generating Station entered and ended the month at full reactor pbwer. On April 3rd to 4th, power - xI _

,,.r* L was reduced to about 83% for Control Rod Sequence Exchange. On April 10th to 11th, power was reduced to about 84% for CRD HCU Recovery and Bypass Valve Testing. On April 17th to 18th, power was reduced to aboit 85% for CRD HCU Recovery. On .

April 24th to 25th power was reduceil to about 82% for CRD HCU Recovery.  : --

(1) REASON (2) METHOD A - Equipment Failure E - Operator Training & 1 - Manual B - Maintenance or Test License Examination 2 - Manual Trip/Scram C - Refueling F - Admiinistration 3 - Auto Trip/Scram D - Regulatory Restriction G - Operational Error 4 - Continuation H - Other 5 - Other (Explain) l f