ML021720562
| ML021720562 | |
| Person / Time | |
|---|---|
| Site: | Kewaunee  |
| Issue date: | 06/13/2002 |
| From: | Coutu T Nuclear Management Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| NRC-02-055 | |
| Download: ML021720562 (4) | |
Text
Kewaunee Nuclear Power Plant N490 Highway 42 Kewaunee, W1 54216-9511 920.388.2560 Point Beach Nuclear Plant 6610 Nuclear Road Two Rivers, WI 54241 920.755.2321 Kewaunee / Point Beach Nuclear Operated by Nuclear Management Company, LLC NRC-02-055 June 13, 2002 10 CFR 50.36 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555 Ladies/Gentlemen:
Docket 50-305 Operating License DPR-43 Kewaunee Nuclear Power Plant Monthly Operating Report The monthly operating report for the Kewaunee Nuclear Power Plant for May 2002 is enclosed in accordance with Technical Specification 6.9.a.3.
Sincerely, Thomas Coutu Manager-Kewaunee Plant MLA Enclosure cc -
US NRC - Region III NRC Senior Resident Inspector INPO Records Center PSCW - Sharon Henning Committed to Nuclear Excellence
UNIT SHUTDOWNS DOCKET NO.
UNIT NAME DATE COMPLETED BY TELEPHONE REPORTING PERIOD 50-305 KEWAUNEE June 6, 2002 MARY ANDERSON (920) 388-8453 May, 2002
- 1.
DESIGN ELECTRICAL RATING (MWE-NET)
- 2.
MAXIMUM DEPENDABLE CAPACITY (MWE-NET)
MONTH YEAR-TO-DATE NUMBER OF HOURS REACTOR WAS CRITICAL NUMBER OF HOURS GENERATOR WAS ON LINE UNIT RESERVE SHUTDOWN HOURS NET ELECTRICAL ENERGY (MWH) 512.8 498.7 0.0 246100 3391.8 3377.7 0.0 1767538 CUMULATIVE 208357.7 206156.3 10.0 102941034 Notes: Unit continues to operate at 100%
power 535 511
- 3.
- 4.
- 5.
6.
UNIT SHUTDOWNS DOCKET NO.
UNIT NAME DATE COMPLETED BY TELEPHONE REPORTING 50-305 KEWAUNEE June 6, 2002 MARY ANDERSON (920) 388-8453 MAY, 2002 (2)
Reason:
A - Equipment Failure (Explain)
B - Maintenance or Test C - Refueling D - Regulatory Restriction E - Operator Training & License Examination F - Administrative G - Operational Error (Explain)
H - Other (Explain)
(3)
Method:
1 - Manual 2 - Manual Trip/Scram 3 - Automatic Trip/Scram 4 - Other (Explain)
Continuation
SUMMARY
Operations At approximately 0230 on Sunday, 05/05/02, a decision was made to shut down the Kewaunee unit. This decision was reached after careful consideration of the information that was obtained as a result of several tube leak tests that were conducted on the "A" Component Cooling Water Heat Exchanger. Basically, the number of tube leaks that were discovered, the nature of the flaws, and the inability to quickly determine the cause of the flaws, along with the inability to restore the heat exchanger to an operable status within the LCO time frame, led to this decision.
G-1 was opened on Sunday, 05/05/02 at 1822. Following the complete sleeving of Component Cooling Water Heat Exchangers A and B, both trains of Component Cooling were returned to service on Tuesday, 05/14/02 at 1530 and a plant heatup commenced. On Wednesday, 05/15/02 at 1057 the Reactor became critical; G-1 was closed at 2338. Full power was reached on Friday 05/17/02 at 2115. The unit has continued to operate at 100%
steady state power operation throughout the remainder of the reporting period.
1 METHOD NO.
DATE Type DURATION REASON OF N
(Hours) 2 SHUTTING CAUSE/CORRECTIVE ACTIONS DOWN REACTOR3 3
05/05/02 F
245.26 B
1 See Summary (1)
F: Forced S: Scheduled
UNIT SHUTDOWNS Safety related work items performed during plant shutdown for Component Cooling Water Heat Exchangers A and B:
- Vented LT-471 while in intermediate shutdown due to oscillations
- Performed troubleshooting/repair of N-35 and N-36, replaced High Voltage Power Supply
- Adjusted High Flux at Shutdown alarm for outage Mechanical Maintenance Repair of Component Cooling Water Heat Exchangers A and B (sleeving of the tubes)
Electrical Maintenance Initiated work order to check oil level in the Reactor Coolant Pump Motors and add oil as necessary.
Follow up - this item has now been placed on the forced outage work list.
- Replaced the limit switch on HD-1 1B2
- Replaced the faulty Reactor Coolant Pump Vault Ionization Detectors
- Performed MOV diagnostic testing on PR-1A and PR-lB
- Adjusted limit switch on BS-101B 2