ENS 42178
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ENS Event | |
---|---|
08:24 Nov 30, 2005 | |
Title | Inverter Inoperable for Greater than Allowed Time Per Technical Specifications |
Event Description | This report is being made pursuant to the requirements of License Condition 2.G of the Seabrook Station Operating License. Inverter 1F was inoperable for greater than the 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> allowed by Technical Specification 3.8.3.1.h. The inverter was inoperable for a total of 35 hours4.050926e-4 days <br />0.00972 hours <br />5.787037e-5 weeks <br />1.33175e-5 months <br /> 59 minutes. The inverter was declared to be inoperable at 0323 on November 29, 2005 and was not returned to operable status until 1522 on November 30, 2005, this exceeded the 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> TS limit. The NRC approved a Notice of Enforcement Discretion at 0220 on November 30, 2005, which allowed an extension of 18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br /> (until 2123 11/30/05). The inverter was declared operable prior to the expiration of the extension. This event will be documented in a License Event Report pursuant to the requirements of 10CFR50.73.
The licensee notified the NRC Resident Inspector. |
Where | |
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Seabrook New Hampshire (NRC Region 1) | |
Reporting | |
Other Unspec Reqmnt | |
Time - Person (Reporting Time:+8.83 h0.368 days <br />0.0526 weeks <br />0.0121 months <br />) | |
Opened: | Ron Strickland 17:14 Nov 30, 2005 |
NRC Officer: | Arlon Costa |
Last Updated: | Nov 30, 2005 |
42178 - NRC Website
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Unit 1 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
WEEKMONTHYEARENS 457382010-02-26T04:15:00026 February 2010 04:15:00
[Table view]Other Unspec Reqmnt Discovery of an After-The-Fact Unusual Event ENS 426842006-06-30T23:49:00030 June 2006 23:49:00 Other Unspec Reqmnt 24 Hour License Condition Report - Main Steam Isolation Valve Inoperable Greater than 4 Hours ENS 426602006-06-22T10:20:00022 June 2006 10:20:00 Other Unspec Reqmnt 24 Hour License Condition Report of Operation in a Condition Prohibited by Technical Specification ENS 423972006-03-08T13:00:0008 March 2006 13:00:00 Other Unspec Reqmnt 24-Hour Condition of License Report Due to Failure to Submit Ts Required Exposure Report ENS 421782005-11-30T08:24:00030 November 2005 08:24:00 Other Unspec Reqmnt Inverter Inoperable for Greater than Allowed Time Per Technical Specifications ENS 418242005-07-07T14:17:0007 July 2005 14:17:00 Other Unspec Reqmnt License Condition Report Due to Exceeding Technical Specification Inoperability Time ENS 415432005-03-29T19:00:00029 March 2005 19:00:00 Other Unspec Reqmnt 24 - Hr Condition of License Report Due to T.S. Not Met ENS 413402005-01-15T05:00:00015 January 2005 05:00:00 Other Unspec Reqmnt Unspecified Requirement ENS 410952004-10-05T22:30:0005 October 2004 22:30:00 Other Unspec Reqmnt One of Two Pressurizer Level Instrumentation Channels Found to Be Inoperable. ENS 408422004-06-25T14:50:00025 June 2004 14:50:00 Other Unspec Reqmnt Plant Exceeded Lco Action Statement Limits 2010-02-26T04:15:00 | |
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