ENS 52516
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ENS Event | |
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00:08 Jan 28, 2017 | |
Title | High Pressure Core Spray Declared Inoperable |
Event Description | This notification is to report a loss of safety function in accordance with 10 CFR 50.72(b)(3)(v)(D). At approximately 1808 CST hours on Friday, January 27, 2017, the Grand Gulf Nuclear Station Unit 1 High Pressure Core Spray (HPCS) system was declared inoperable due to the trip of the HPCS Jockey Pump.
At the time of discovery, Unit 1 was in Mode 2 and raising power in the source range to return to power operations. No other safety systems were inoperable at the time of this event. Investigation into the cause of the event is ongoing and the system will be returned to operational status prior to proceeding to Mode 1. The licensee has notified the NRC Resident Inspector. |
Where | |
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Grand Gulf ![]() Mississippi (NRC Region 4) | |
Reporting | |
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |
LER: | 05000416/LER-2017-001 |
Time - Person (Reporting Time:+-1.05 h-0.0438 days <br />-0.00625 weeks <br />-0.00144 months <br />) | |
Opened: | Joseph Graham 23:05 Jan 27, 2017 |
NRC Officer: | Dong Park |
Last Updated: | Jan 27, 2017 |
52516 - NRC Website
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