ML032550349
| ML032550349 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Sequoyah  (DPR-019, DPR-077, DPR-079) |
| Issue date: | 09/11/2003 |
| From: | Salas P Tennessee Valley Authority |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML032550356 | List: |
| References | |
| Download: ML032550349 (6) | |
Text
September 11, 2003 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 Gentlemen:
In the Matter of
)
Docket Nos. 50-327 Tennessee Valley Authority
)
50-328 SEQUOYAH NUCLEAR PLANT - AUGUST MONTHLY OPERATING REPORT The enclosure provides the August Monthly Operating Report as required by Sequoyah Technical Specification Section 6.9.1.10.
This letter is being sent in accordance with NRC RIS 2001-05.
If you have any questions concerning this matter, please call me at (423) 843-7170 or J. D. Smith at (423) 843-6672.
Sincerely, Original signed by:
Pedro Salas Licensing and Industry Affairs Manager Enclosure cc (Enclosure):
Mr. Michael L. Marshall, Jr., Senior Project Manager U.S. Nuclear Regulatory Commission MS O-8G9A One White Flint North 11555 Rockville Pike Rockville, Maryland 20852-2739
U.S. Nuclear Regulatory Commission Page 2 September 11, 2003 PS:JDS:JWP:KTS cc (Enclosure):
D. K. Baker, BR 3H-C J. L. Beasley, OPS 4A-SQN M. J. Burzynski, BR 4X-C J. L. Hamilton, OPS 4G-SQN (Attn: T. J. Hollomon)
T. A. Keys, BR 6A-C D. L. Koehl, OPS 4A-SQN D. A. Kulisek, POB 2B-SQN D. C. Olcsvary, LP 6A-C R. T. Purcell, OPS 4A-SQN NSRB Support, LP 5M-C J. A. Scalice, LP 6A-C EDMS, WTC A-K I\\LICENSE\\monthly operating report\\2003\\MOR 08 2003
ENCLOSURE TENNESSEE VALLEY AUTHORITY SEQUOYAH NUCLEAR PLANT (SQN)
MONTHLY OPERATING REPORT AUGUST 2003 UNIT 1 DOCKET NUMBER 50-327 LICENSE NUMBER DPR-77 UNIT 2 DOCKET NUMBER 50-328 LICENSE NUMBER DPR-79
E-1 OPERATING DATA REPORT Docket No.
50-327 Unit Name SQN Unit 1 Date September 8, 2003 Completed By Tanya Hollomon Telephone (423) 843-7528 Reporting Period August 2003
- 1.
Design Electrical Rating (Net MWe):
1160
- 2.
Maximum Dependable Capacity (MWe-Net) 1125 Month Yr-to-Date Cumulative
- 3.
Number of Hours Reactor was Critical 664.6 3,593.7 129,059.5
- 4.
Hours Generator On-Line 664.1 3,531.9 127,072.5
- 5.
Unit Reserve Shutdown Hours 0.0 0.0 0.0
- 6.
Net Electrical Energy Generated (MWh) 759,290 3,963,048 138,247,138 Docket No.
50-328 Unit Name SQN Unit 2 Date September 8, 2003 Completed By Tanya Hollomon Telephone (423) 843-7528 Reporting Period August 2003
- 1.
Design Electrical Rating (Net MWe):
1160
- 2.
Maximum Dependable Capacity (MWe-Net):
1126 Month Yr-to-Date Cumulative
- 3.
Number of Hours Reactor was Critical 744.0 5,401.6 134,627.1
- 4.
Hours Generator On-Line 744.0 5,351.5 132,449.1
- 5.
Unit Reserve Shutdown Hours 0.0 0.0 0.0
- 6.
Net Electrical Energy Generated (MWh) 826,581 5,994,061 141,718,163
UNIT SHUTDOWNS DOCKET NO:
50-327 UNIT NAME:
SQN-1 DATE:
September 8, 2003 COMPLETED BY: Tanya Hollomon TELEPHONE:
(423) 843-7528 REPORT PERIOD: AUGUST 2003 No.
Date Type F:Forced S:Scheduled Duration (Hours)
Reason1 Method of Shutting Down Reactor2 Cause and Corrective Action to Prevent Recurrence 3
030828 F
79.9 G
2 Unit 1 was manually tripped following a main generator trip while Operations personnel were performing a quarterly simulated oil trip test on the main turbine causing a 100 percent loss of load to the unit. The initiating cause of the event was a closed instrument isolation valve to one of the turbine auto-stop oil pressure switches. The most likely causes of the event were determined to be a failure to properly implement the valve verification process or a failure to maintain proper configuration control. The pressure switch was tested and returned to service. A verification of valve positions was performed, no additional misalignment of valves were identified. Unit 1 remained offline at the end of the month.
Summary: Unit 1 gross maximum dependable capacity factor was 90.6 percent for the month of August.
1 Reason:
2 Method A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Trip/Scram C-Refueling 3-Automatic Trip/Scram D-Regulatory Restriction 4-ContinuationOutage E-Operator Training / License Examination 5-Other (Explain)
F-Administrative G-Operational Error (Explain)
H-Other (Explain)
UNIT SHUTDOWNS DOCKET NO:
50-328 UNIT NAME:
SQN-2 DATE:
September 8, 2003 COMPLETED BY: Tanya Hollomon TELEPHONE:
(423) 843-7528 REPORT PERIOD: AUGUST 2003 No.
Date Type F:Forced S:Scheduled Duration (Hours)
Reason1 Method of Shutting Down Reactor2 Cause and Corrective Action to Prevent Recurrence None Summary: Unit 2 gross maximum dependable capacity factor was 98.4 percent for the month of August.
1 Reason:
2 Method A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Trip/Scram C-Refueling 3-Automatic Trip/Scram D-Regulatory Restriction 4-ContinuationOutage E-Operator Training / License Examination 5-Other (Explain)
F-Administrative G-Operational Error (Explain)
H-Other (Explain)