ENS 40008
ENS Event | |
|---|---|
14:48 Jul 22, 2003 | |
| Title | Helb Door Not Latched as Required Due to Personnel Error |
| Event Description | A High Energy Line Break (HELB) door was not latched as required. This condition is being reported as an event that could have prevented the fulfillment of a safety function in accordance with 10CFR50.72(b)(3)(v)(A). The door is currently closed.
The HELB door which separates two critical Motor Control Center [MCC] areas was unlatched for less than two (2) minutes. The licensee will inform the state representative and has informed the NRC resident inspector.
Because plant safety was not significantly degraded, this event is not reportable under the unanalyzed condition criteria based on: (1) the door in either event was in an uncontrolled condition for less than one minute, (2) the door was not materially affected, only operated improperly, (3) the PRA significance of the event was low, and (4) the HELB Barrier door was not open for a period longer than is allowed by station procedural guidance. R3DO (C. Miller) notified. The station continues to review the event in the station's corrective action program. The NRC Resident Inspector was notified of this retraction by the licensee. |
| Where | |
|---|---|
Monticello  Minnesota (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor | |
| Time - Person (Reporting Time:+6.37 h0.265 days <br />0.0379 weeks <br />0.00873 months <br />) | |
| Opened: | Gerry Stockham 21:10 Jul 22, 2003 |
| NRC Officer: | Steve Sandin |
| Last Updated: | Aug 27, 2003 |
| 40008 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |