NG-04-0332, April 2004 Monthly Operating Report for Duane Arnold Energy Center
| ML041420308 | |
| Person / Time | |
|---|---|
| Site: | Duane Arnold  |
| Issue date: | 05/13/2004 |
| From: | Peifer M Nuclear Management Co |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| NG-04-0332 | |
| Download: ML041420308 (3) | |
Text
Committed to Nuclear Excellence Duane Arnold Energy 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-17 Washington, DC 20555-0001 DUANE-ARNOLD ENERGY CENTER 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 esident, Duane Arnold Energy Center CC Regional Administrator, USNRC, Region IlIl Project Manager, USNRC, NRR NRC Resident Inspector (DAEC)
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Enclosure:
OPERATING DATA REPORT I!.
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May 13, 2004 Enclosure to NG-04-0332 Page 1 of 2 OPERATING DATA REPORT DOCKET NO.
UNIT NAME DATE COMPLETED BY TELEPHONE REPORTING PERIOD:
50-331 Duane Arnold May 4, 2004 Mike Fairchild (319) 851-7642 April 2004
_1.
I-Design-Electrical -Rating (MWe) ------
_581
-40
- 2. Maximum Dependable Capacity 565.50 (MWe-Net)
- 3. Number of Hours the Reactor was Critical
- 4. Number of Hours Generator On-line
- 5. Reserve Shutdown Hours
- 6. Net Electrical Energy Generated (MWHrs)
This Month 647.57 625.23 0.00 349,640.20 Yr-to-Date 2,831.57 2,809.23 0.00 1,628,350.90 Cumulative 204.509.84 200,094.75 192.80 93,583,626.58 UNIT SHUTDOWNS Type Method F: Forced of Cause & Corrective S:
Duration Shuttinq Action No.
Date Scheduled (Hours)
Reason 1 Down Comments 1
4/19/04 S
93.77 B
Planned shutdown to
- replace.a leaking main steam relief valve.
'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) 2Method:
1 Manual 2
Manual Trip/Scram 3
Automatic Trip/Scram 4
Continuation 5
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 onFApril-27.--TheI-llother poWe-r-iductio-ns-duringthe-month were for load line adjustments on April 24, 25, 27, and 28.