ENS 46700: Difference between revisions
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| event date = 03/25/2011 14:00 EDT | | event date = 03/25/2011 14:00 EDT | ||
| last update date = 03/27/2011 | | last update date = 03/27/2011 | ||
| title = Both Trains | | title = Both Trains of Emergency Diesel Generators Are Inoperable | ||
| event text = On March 25, 2011, the Train B emergency diesel generator (2EGS-EG2-2) was inoperable and unavailable due to being out of service for scheduled maintenance. At 1400 hours, the Train A emergency diesel generator (2EGS-EG2-1) was declared inoperable, but available, after questions were raised about the adequacy of the assembly method for fuel injection line compression fittings by the manufacturer. Without assurance that the fittings meet full qualification requirements, the Train A emergency diesel generator was declared inoperable. | | event text = On March 25, 2011, the Train B emergency diesel generator (2EGS-EG2-2) was inoperable and unavailable due to being out of service for scheduled maintenance. At 1400 hours, the Train A emergency diesel generator (2EGS-EG2-1) was declared inoperable, but available, after questions were raised about the adequacy of the assembly method for fuel injection line compression fittings by the manufacturer. Without assurance that the fittings meet full qualification requirements, the Train A emergency diesel generator was declared inoperable. | ||
The Unit is currently in Mode 6 with fuel loaded and the upper internals installed in the reactor vessel. The reactor vessel head is removed with 23 feet of water in the cavity, two Operable Residual Heat Removal trains one of which is in operation. With both emergency diesels inoperable, the safety functions needed for accident mitigation could be impaired in the event of a loss of off-site power. Actions are currently in progress to restore one emergency diesel generator to an Operable status. | The Unit is currently in Mode 6 with fuel loaded and the upper internals installed in the reactor vessel. The reactor vessel head is removed with 23 feet of water in the cavity, two Operable Residual Heat Removal trains one of which is in operation. With both emergency diesels inoperable, the safety functions needed for accident mitigation could be impaired in the event of a loss of off-site power. Actions are currently in progress to restore one emergency diesel generator to an Operable status. | ||
Latest revision as of 21:07, 1 March 2018
| Where | |
|---|---|
| Beaver Valley Pennsylvania (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |
| Time - Person (Reporting Time:+3.58 h0.149 days <br />0.0213 weeks <br />0.0049 months <br />) | |
| Opened: | Daniel Schwer 21:35 Mar 25, 2011 |
| NRC Officer: | Bill Huffman |
| Last Updated: | Mar 27, 2011 |
| 46700 - NRC Website
| |