ENS 45790: 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 = 03/25/2010 10:28 CDT | | event date = 03/25/2010 10:28 CDT | ||
| last update date = 05/24/2010 | | last update date = 05/24/2010 | ||
| title = High Pressure Safety Injection Inoperable Due | | title = High Pressure Safety Injection Inoperable Due to Voids Identified in Suction Piping | ||
| event text = At 1028 CDT today 3/25/2010, a rejectable void was found in one of the suction lines (cooled suction line) to the B HPSI [High Pressure Safety Injection] pump. The main suction line is water filled. The piping was declared inoperable and the appropriate technical specification was entered. At 1357 CDT the void was cleared from the cooled suction line and the piping was declared operable. Subsequently, at 1409 CDT a similar rejectable void was discovered in the other cooled suction line for HPSI pumps A and C. The piping was declared inoperable. The appropriate technical specification was entered. At 1447 CDT the void was cleared and the piping was declared operable. Due to the close proximity of these occurrences the station is conservatively reporting this as a safety system functional failure as it appears that both trains of HPSI cooled suction were inoperable at the same time. | | event text = At 1028 CDT today 3/25/2010, a rejectable void was found in one of the suction lines (cooled suction line) to the B HPSI [High Pressure Safety Injection] pump. The main suction line is water filled. The piping was declared inoperable and the appropriate technical specification was entered. At 1357 CDT the void was cleared from the cooled suction line and the piping was declared operable. Subsequently, at 1409 CDT a similar rejectable void was discovered in the other cooled suction line for HPSI pumps A and C. The piping was declared inoperable. The appropriate technical specification was entered. At 1447 CDT the void was cleared and the piping was declared operable. Due to the close proximity of these occurrences the station is conservatively reporting this as a safety system functional failure as it appears that both trains of HPSI cooled suction were inoperable at the same time. | ||
The licensee notified the NRC Resident Inspector. | The licensee notified the NRC Resident Inspector. | ||
Latest revision as of 21:09, 1 March 2018
| Where | |
|---|---|
Fort Calhoun  Nebraska (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(v)(B), Loss of Safety Function - Remove Residual Heat | |
| Time - Person (Reporting Time:+3.42 h0.143 days <br />0.0204 weeks <br />0.00468 months <br />) | |
| Opened: | Erick Matzke 18:53 Mar 25, 2010 |
| NRC Officer: | Vince Klco |
| Last Updated: | May 24, 2010 |
| 45790 - NRC Website
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