ENS 40642: Difference between revisions
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StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
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| event date = 04/05/2004 01:30 EDT | | event date = 04/05/2004 01:30 EDT | ||
| last update date = 05/27/2004 | | last update date = 05/27/2004 | ||
| title = Loss | | title = Loss of Safety Function for Emergency Diesel Generators During Surveillance Testing | ||
| event text = At 0030 [ET] during setup for Unit 1 Division 1 LOCA/LOOP Surveillance testing, the controlling procedure required making the Loss of Power instrumentation for the 1A and 1C ESS buses inoperable. The specification has a 1 hour time limit for restoration, or the associated Diesel Generators must be declared inoperable. Due to delays during the setup of equipment the time requirements were not met, and the associated Diesel Generators were declared inoperable at 0130. The Susquehanna Safety Analysis requires three operable Diesel Generators to safely shutdown. Therefore, this condition is reportable for Unit 2 under 10CFR50.72(b)(3)(v). Unit 1 is in Mode 5 and therefore not impacted. The Loss of Power instruments were restored, and the Diesel Generators declared operable at 0223. | | event text = At 0030 [ET] during setup for Unit 1 Division 1 LOCA/LOOP Surveillance testing, the controlling procedure required making the Loss of Power instrumentation for the 1A and 1C ESS buses inoperable. The specification has a 1 hour time limit for restoration, or the associated Diesel Generators must be declared inoperable. Due to delays during the setup of equipment the time requirements were not met, and the associated Diesel Generators were declared inoperable at 0130. The Susquehanna Safety Analysis requires three operable Diesel Generators to safely shutdown. Therefore, this condition is reportable for Unit 2 under 10CFR50.72(b)(3)(v). Unit 1 is in Mode 5 and therefore not impacted. The Loss of Power instruments were restored, and the Diesel Generators declared operable at 0223. | ||
The licensee notified the NRC Resident Inspector. | The licensee notified the NRC Resident Inspector. | ||
Latest revision as of 22:23, 1 March 2018
| Where | |
|---|---|
Susquehanna  Pennsylvania (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor | |
| Time - Person (Reporting Time:+-1.47 h-0.0613 days <br />-0.00875 weeks <br />-0.00201 months <br />) | |
| Opened: | Jim Hufford 04:02 Apr 5, 2004 |
| NRC Officer: | Mike Ripley |
| Last Updated: | May 27, 2004 |
| 40642 - NRC Website
| |