ML073550716
| ML073550716 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 12/21/2007 |
| From: | Exelon Nuclear |
| To: | NRC Region 1 |
| References | |
| Download: ML073550716 (5) | |
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Nuclear Three Mile Island Refueling Outage Performance Summary NRC Region I December 21,2007
Outage Improvement Initiatives Plant Safety Improvements Reactor building ECCS sump modification Fuel assembly growth assessment and repairs OTSG inspection and repairs Pressurizer Alloy 600 mitigation River water pipe replacement Vital inverter replacements Reactor building penetration replacement Sub-Cooling margin monitor operator work around corrected Hot leg thermocouple replacement Pressurizer code safety valve replacement Nuclear
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'-e Operations Outage Performance Issues - EFW Steam Supply Valves EFW steam admission valves improperly aligned Event description Immediate actions Investigation Exelan.
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