ML041340631
| ML041340631 | |
| Person / Time | |
|---|---|
| Site: | Duane Arnold  |
| Issue date: | 05/13/2004 |
| From: | Peifer M Nuclear Management Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| GL-97-002, NG-04-0332 | |
| Download: ML041340631 (3) | |
Text
Duane Arnold Enerav Center Operated by Nuclear Management Company, LLC May 13,2004 NG-04-0332 TS 5.6.4 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Station 0-PI -1 7 Washington, DC 20555-0001 DUANEARNOLDENERGYCENTER DOCKET 50-331 LICENSE NO. DPR-49 MONTHLY OPERATING REPORT Please find enclosed the Duane Arnold Energy Center Monthly Operating Report.
The report has been prepared in accordance with the guidelines of NRC Generic Letter 97-02: Revised Contents Of The Monthly Operating Report, and distribution has been made in accordance with DAEC Technical Specifications, Section 5.6.4.
This letter makes no new commitments or changes to any existing commitments.
Sincerely, Site Vice l%esident, Duane Arnold Energy Center CC Regional Administrator, USNRC, Region Ill Project Manager, USNRC, NRR NRC Resident Inspector (DAEC)
Enclosure:
OPERATING DATA REPORT 3277 DAEC Road Palo, Iowa 52324-9785 Telephone: 31 9.851.761 1
May 13,2004 Enclosure to NG-04-0332 Page 1 of 2 Type Method No, Date Scheduled
/Hoursl-Reason' Down Comments F: Forced Of Cause & Corrective S:
Duration Shutting Action 1
4/19/04 S
93.77 B
1 Planned shutdown to OPERATING DATA REPORT DOCKET NO.
50-331 UNIT NAME Duane Arnold DATE May 4,2004 COMPLETED BY Mike Fairchild TELEPHONE (31 9) 851 -7642 REPORTING April 2004 PERIOD:
- 1. Design Electrical Rating (MWe) 581.40
- 2. Maximum Dependable Capacity 565.50 (M We-Net)
This Month Yr-to-Date Cumulative
- 3. Number of Hours the Reactor was 647.57 2,831.57 204,509.84 Critical 625.23 2,809.23 200,094.75
- 4. Number of Hours Generator On-line
- 5. Reserve Shutdown Hours o.00 o.00 192.80
- 6. Net Electrical Energy Generated 349,640.20 1,628,350.90 93,583,626.58 (M WH rs)
UNIT SHUTDOWNS I
I I
I I
I replace a leaking main steam relief valve.
'Reason:
2Method:
A Equipment Failure (Explain) 1 Manual B
Maintenance or Test 2
Manual TriplScram C
Refueling 3
Automatic TripBcram D
Regulatory Restriction 4
Continuation E
Operator Training & License Examination 5 Other (Explain)
F Administration G
Operational Error (Explain)
H Other (Explain)
May 13,2004 Enclosure to NG-04-0332 Page 2 of 2 NARRATIVE
SUMMARY
On April 18 at 1200, reactor power reduction commenced for a planned plant shutdown for replacement of a leaking main steam relief valve. The main generator was disconnected from the grid at 0149 on April 19. Following completion of maintenance, reactor startup commenced at 0031 on April 22, and the generator was synchronized to the grid at 2335 on April 22. Full rated thermal power was reached at 0339 on April 24. At 0912 on April 26, power reduction was commenced due to oscillations of the A reactor feedwater regulating valve. The A reactor feedwater pump was removed from service, and power reduction was secured at 1442 on April 26 at 45.8% power. After replacement of the A feedwater regulating valve positioner, full power was achieved at 0432 on April 27. The only other power reductions during the month were for load line adjustments on April 24, 25, 27, and 28.