ML040230313
| ML040230313 | |
| Person / Time | |
|---|---|
| Site: | Duane Arnold  |
| Issue date: | 01/15/2004 |
| From: | Peifer M Nuclear Management Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| GL-97-002, NG-04-0028 | |
| Download: ML040230313 (4) | |
Text
N M Committed to Nuclear Ecellence Duane Arnold Energy Center Operated by Nuclear Management Company, LLC January 15, 2004 NG-04-0028 TS 5.6.4 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Station 0-Pl-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.
Also enclosed is the revised page 1 of the November 2003 Operating Data Report with the corrected values for Net Electrical Energy Generated (MWHrs). The correct value for Net Electrical Energy Generated should have been 51,910.20, not 50,543.90. This error also affected the Yr-to-Date and Cumulative values for Net Electrical Energy Generated. The actual value for Yr-to-Date should have been 3,628,140.00 MWHrs and the Cumulative value should have been 91,584,842.28 MWHrs. The December data reflects these corrected values.
This letter makes no new commitments or changes to any existing commitments.
Sincerely, Mark A. Peifer Site Vice President, Duane Arnold Energy Center CC Regional Administrator, USNRC, Region III Project Manager, USNRC, NRR NRC Resident Inspector (DAEC)
Enclosures:
- 1. December 2003 OPERATING DATA REPORT
- 2. Page 1 of November 2003 OPERATING DATA REPORT 3277 DAEC Road
- Palo, Iowa 52324-9785 Telephone: 319.851.7611
,_-k IIV January 15, 2004 to NG-04-0028 Page 1 of 2 OPERATING DATA REPORT DOCKET NO.
UNIT NAME DATE COMPLETED BY TELEPHONE REPORTING PERIOD:
50-331 Duane Arnold 1 January 9, 2004 Mike Fairchild (319) 851-7642 December 2003 1.
2.
Design.Electrical-Rating (MWe)-i 581 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 667.93 646.75 0.00 370,433.40 Yr-to-Date 7,432.55 Cumulative 201,678.27 7,212.27 197,285.52 0.00 192.80 3,998,573.40 91,955,275.68
January 15, 2004 to NG-04-0028 Page 2 of 2 UNIT SHUTDOWNS Type Method Cause &
F: Forced of Corrective S:
Duration Shutting Action No.
Date Scheduled (Hours)
Reason1 Down Comments 7
11/25/03 F
97.25 A
4 Due to loss of condenser vacuum caused by air in-leakage.
LER 2003-
_006 pending.
'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 2
3 4
5 Manual Manual TriplScram Automatic Trip/Scram Continuation Other (Explain)
NARRATIVE
SUMMARY
The reactor had been shutdown at 00:12 on November 30, after having operated at approximately 5% to facilitate condenser in-leakage testing. The source of the air in-leakage had been located at the welded joint (seam) in the high pressure condenser loop seal. Following condenser repairs, the reactor was taken critical at 04:04 on December 4, and the generator synchronized to the grid at 01:15 on
' 666hiber'51 Fullth-e-ra-aI power was~ achieved on DecembeFr6-at 21:57. ' For the remainder of the month, three brief power reductions of approximately 5% to adjust loadline were performed on December 7 (two) and 26. At 1305 on December 31, reactor power was decreased to 47.7% for maintenance on the 'B' Reactor Feed Pump. Full power was achieved on January 1 at 0439.
- - O.r January 15, 2004 to NG-04-0028 Page 1 of 1 OPERATING DATA REPORT DOCKET NO.
UNIT NAME DATE COMPLETED BY TELEPHONE REPORTING PERIOD:
50-331 Duane Arnold 1 December 9, 2003 Richard Woodward (319) 851-7318 November 2003 1 pesi1 Electrical Rating (MWe) 581.40
- 2. Maximum Lutpact uauie 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 404.35 279.73 0.00 51,910.20 Yr-to-Date 6,764.62 Cumulative 201,010.34 6,565.52 196,638.77 0.00 192.80 3,628,140.00 91,584,842.28