ENS 41670: Difference between revisions
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StriderTol (talk | contribs) (Created page by program invented by Mark Hawes) |
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
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| event date = 05/05/2005 23:05 EDT | | event date = 05/05/2005 23:05 EDT | ||
| last update date = 05/06/2005 | | last update date = 05/06/2005 | ||
| title = Technical Specifications Required Plant Shutdown Began | | title = Technical Specifications Required Plant Shutdown Began and Then Terminated | ||
| event text = Unit shutdown was commenced at 2305 to comply with requirements of technical specification 3.0.3. 14 and 15 Containment Fan Coil Units (CFCU'S), 2 of 5 total CFCU's, had been removed from service to remove silt buildup in their emergency supply piping. While in this configuration, a tubing line supplying service water pressure for control of the 13SW223 (outlet flow control valve) for 13 CFCU developed a leak that rendered that valve and associated CFCU inoperable. With 3 CFCU's inoperable entry into technical specification 3.0.3 was required. A turbine load reduction was commenced at 2305 at 1% per hour. The 15 CFCU was restored to operable status at 2320 and the technical specification 3.0.3 and the load reduction were terminated. 14 CFCU was returned to operable at 2323. Repairs were made on the tubing for 13 CFCU and that was returned to operable status at 0009 on 5/6/05. 11 and 12 CFCU's were operable and in service for the duration of the event. The unit has been returned to 100% rated power. | | event text = Unit shutdown was commenced at 2305 to comply with requirements of technical specification 3.0.3. 14 and 15 Containment Fan Coil Units (CFCU'S), 2 of 5 total CFCU's, had been removed from service to remove silt buildup in their emergency supply piping. While in this configuration, a tubing line supplying service water pressure for control of the 13SW223 (outlet flow control valve) for 13 CFCU developed a leak that rendered that valve and associated CFCU inoperable. With 3 CFCU's inoperable entry into technical specification 3.0.3 was required. A turbine load reduction was commenced at 2305 at 1% per hour. The 15 CFCU was restored to operable status at 2320 and the technical specification 3.0.3 and the load reduction were terminated. 14 CFCU was returned to operable at 2323. Repairs were made on the tubing for 13 CFCU and that was returned to operable status at 0009 on 5/6/05. 11 and 12 CFCU's were operable and in service for the duration of the event. The unit has been returned to 100% rated power. | ||
The only other safety related equipment removed from service at the time of the event was the 13 service water pump for investigation of a reduced flow condition, and had no impact on this event. | The only other safety related equipment removed from service at the time of the event was the 13 service water pump for investigation of a reduced flow condition, and had no impact on this event. | ||
Latest revision as of 21:21, 1 March 2018
| Where | |
|---|---|
Salem  New Jersey (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown | |
| Time - Person (Reporting Time:+-2.55 h-0.106 days <br />-0.0152 weeks <br />-0.00349 months <br />) | |
| Opened: | Steve Sauer 00:32 May 6, 2005 |
| NRC Officer: | Mike Ripley |
| Last Updated: | May 6, 2005 |
| 41670 - NRC Website
| |