ENS 40478
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ENS Event | |
|---|---|
14:41 Jan 26, 2004 | |
| Title | Unusual Event (Transitory) Due to Low Intake Bay Level Caused by Icing |
| Event Description | This is a notification of a transitory Notification of Unusual Event. Nine Mile Point Unit 1 experienced a transitory low intake bay level due to icing. This condition was resolved by shifting circulating water flow from reverse flow to normal flow. This met Emergency Action Level 8.4.3 for low fore bay level less than 238.8 feet. The duration of this event was from 0941 (EST) to 0943.
While returning reactor power to 100%, an unrelated problem [plant computer] halted power ascension at 92.4% [from a stable 90% reactor power]. The licensee notified the NRC Resident Inspector and the state and local government through their "warning point" emergency notification system. |
| Where | |
|---|---|
Nine Mile Point  New York (NRC Region 1) | |
| Reporting | |
| Emergency class: | Unusual Event |
| 10 CFR 50.72(a) (1) (i), Emergency Class Declaration | |
| Time - Person (Reporting Time:+-3.43 h-0.143 days <br />-0.0204 weeks <br />-0.0047 months <br />) | |
| Opened: | Fred Ringwald 11:15 Jan 26, 2004 |
| NRC Officer: | Arlon Costa |
| Last Updated: | Jan 26, 2004 |
| 40478 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (90 %) |
WEEKMONTHYEARENS 537652018-12-02T05:00:0002 December 2018 05:00:00
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