ML101060345
| ML101060345 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 10/07/2009 |
| From: | Krehely W Progress Energy Florida |
| To: | Haag R NRC/RGN-II |
| References | |
| FOIA/PA-2010-0116 | |
| Download: ML101060345 (1) | |
Text
Power Reactor Event Number: 45416 Facility: CRYSTAL RIVER Notification Date: 10/07/2009 Region: 2 State: FL Notification Time: 19:33 [ET]
Unit: [3] [ ] [ ]
Event Date: 10/07/2009 RX Type: [3] B&W-L-LP Event Time: 19:30 [EDT]
NRC Notified By: WILLIAM KREHELY Last Update Date: 10/07/2009 HQ OPS Officer: PETE SNYDER Emergency Class: NON EMERGENCY Person (Organization):
10 CFR Section:
ROBERT HAAG (R2DO)
DTHER UNSPEC REQMNT Event Text DISCOVERY OF A CONTAINMENT SEPARATION
'Crystal River Unit 3 is currently shutdown for a planned refueling and steam generator
- eplacement outage. During containment building concrete removal activities to create a
,onstruction opening to support steam generator replacement, a separation in the concrete tvas discovered in the vicinity of the construction opening near the periphery of the "ontainment. The Crystal River Unit 3 containment is a steel lined, post tensioned concrete 3tructure nominally 42 inches thick. Post tensioning is achieved utilizing an outer array of iorizontal tendons immediately adjacent to an inner array of vertical tendons. The separation s generally in the plane of the horizontal tendons. Inside the separation is 30 inches of
-oncrete and the steel liner plate. This condition has been evaluated relative to current plant
,onditions and found to represent no degradation in safety. Crystal River Unit 3 personnel in
,onjunction with industry experts are currently performing a detailed analysis of this 3eparation to determine the cause, extent of condition, the impact on the containment buildinc unction and any required repairs prior to plant restart. Operating experience reports are
)eing prepared to share our information with the industry. The station will provide updates as Ae gain more information concerning this issue."
rhe licensee notified the NRC Resident Inspector.