ENS Event | |
|---|---|
13:35 Mar 30, 2005 | |
| Title | Technical Specification Shutdown Due to Containment Fan Coil Units Declared Inoperable |
| Event Description | The following information was obtained from the licensee via facsimile (licensee text in quotes):
The site determined that previous repairs to 21, 22, and 23 Containment Fan Coil Unit (CFCU) Heat Exchangers were not in compliance with applicable ASME codes. The three CFCUs were declared inoperable per Generic Letter 90-05 for ASME Class II Piping. Shutdown of Unit 2 to Mode 3 commenced at 0735. Code repairs are being performed and the technical specification required shutdown (LCO 3.0.3/3.6.1.B) is expected to be stopped once one CFCU train is returned to operability and the other is isolated to meet technical specification LCO 3.6.1. 'Containment.' The licensee notified the NRC Resident Inspector. |
| Where | |
|---|---|
Prairie Island  Minnesota (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(i), Tech Spec Required Shutdown | |
| Time - Person (Reporting Time:+-4 h-0.167 days <br />-0.0238 weeks <br />-0.00548 months <br />) | |
| Opened: | Brian Johnson 09:35 Mar 30, 2005 |
| NRC Officer: | Bill Gott |
| Last Updated: | Mar 30, 2005 |
| 41548 - NRC Website
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Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 502152014-06-20T01:35:00020 June 2014 01:35:00
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