ENS 41899
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ENS Event | |
|---|---|
08:03 Aug 6, 2005 | |
| Title | Alert Declared Due to Low Intake Water Level |
| Event Description | The licensee declared an Alert (EAL HA3) at 0403 ET 08/06/05 due to low water level in the north half of the intake structure as a result of heavy grass accumulation due to a storm in the area. Intake level recovered to above the EAL value for an Alert, and the event was de-escalated to an Unusual Event (EAL HU3) at 0406 ET. One Circulating Water Pump associated with the north intake was immediately secured and reactor power was reduced to 43%. When the second Circulating Water Pump associated with the north intake was secured, intake water level returned to normal. As a result of the grassing, trash racks collapsed and traveling screen shear pins sheared at the north intake. The traveling screens were subsequently restored to service.
The licensee notified the NRC Resident Inspector.
|
| Where | |
|---|---|
| Oyster Creek New Jersey (NRC Region 1) | |
| Reporting | |
| Emergency class: | Alert |
| 10 CFR 50.72(a) (1) (i), Emergency Class Declaration | |
| Time - Person (Reporting Time:+-3.35 h-0.14 days <br />-0.0199 weeks <br />-0.00459 months <br />) | |
| Opened: | Mark Baratta 04:42 Aug 6, 2005 |
| NRC Officer: | Mike Ripley |
| Last Updated: | Aug 6, 2005 |
| 41899 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (43 %) |
Oyster Creek with 10 CFR 50.72(a)(1)(i), Emergency Class Declaration | |
WEEKMONTHYEARENS 531532018-01-06T10:24:0006 January 2018 10:24:00
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