GO2-04-140, July 2004 Monthly Operating Report for Columbia Generating Station

July 2004 Monthly Operating Report for Columbia Generating Station

ML042300364
Person / Time
Site:	Columbia
Issue date:	08/09/2004
From:	Oxenford W Energy Northwest
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
GO2-04-140
Download: ML042300364 (3)

Text

ENERGY NORTH WEST PO. Box 968

• Richland, Washington 99352-0968 August 9, 2004 G02-04-1 40 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 JULY 2004

Dear Sir or Madam:

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

Respectfully, WS Oxenford/ /

Plant General aer Mail Drop 92 Attachment 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: August 1, 2004

1. Docket: 50-397

2. Reporting Period: July 2004

3. Utility

Contact:

Patricia Campbell (509) 377-4664

4. Design Electrical Rating (Net MWe): 1153

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

6. Hours Reactor Critical 705.4 5,072.4 131,930.9 -

7. Hours Generator On-Line 705.4 5,072.4 128,486.0

8. Unit Reserve Shutdown Hours 0.0 0.0 3,274.7

9. Net Electrical Energy (MWH) 771,274 5,536,808 128,404,460

UNIT SHUTDOWNS DOCKET NO.: 50-397 UNIT NAME: Columbia Generating Station DATE: August 1, 2004 COMPLETED BY: P. Campbell TELEPHONE: (509) 3774664 REPORT PERIOD: July, 2004 Type Method of Cause / Corrective Actions F: Forced Duration Shuttin No. Date S: Scheduled (Hours) Reason (1) Down (2) Comments FO-04-01 7/30/04 F 38.6 A 3 High RPV pressure due to a DEH card failure and subsequent closure of I main turbine governor valve 1.

SUMMARY

Columbia Generating Station began the month at full reactor power. On July 3rd and 4th power was reduced to about 70% for Rod Sequence Exchange. On July 30 the reactor was automatically scrammed on high RPV pressure due to a DEH card failure and subsequent closure of main turbine governor valve 1. The station remained in the forced o'utage for the remainder of the month.

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