ML101170543
| ML101170543 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 10/28/2009 |
| From: | Robert Carrion NRC/RGN-II/DRS/EB3 |
| To: | Mark Franke, Lake L NRC/RGN-II/DRS/EB3 |
| References | |
| FOIA/PA-2010-0116 | |
| Download: ML101170543 (1) | |
Text
Carrion, Robert From:
Carrion, Robert Sent:
Wednesday, October 28, 2009 8:49 AM To:
Franke, Mark; Lake, Louis
Subject:
Status of CR3 NDE Mark/Lou I attended the 7:30 status meeting conducted by Garry Miller. Yesterday the focus was be on the bay where the delamination was originally discovered. LCT did limited NDE in Panels D (due to rain) and will continue today on the panels below (Panels G, J, M, P, and S). (These are the panels to the left of the construction opening.) The NDE work will then shift to the panels immediately to the right of these panels, directly above the construction opening (Panels E, H, and K). (See page 3 of the plan which I sent late Monday for a good idea of where these locations are on the Containment Building.)
Also, Dr. Chew of PII arrived on site Tuesday to work on the Root Cause Analysis.
The BIG NEWS...While conducting the NDE on Panel D yesterday, LCT technicians received indications that the edge of the delamination has been identified. There is apparently good concrete on the left side of the panel (near Buttress #3) and at the top of the panel (near the containment spring line). This is to be expected as the additional rebar in these areas results in a very stiff, strong local area in the structure. As the NDE moved away from these stiff areas (moved to the right of the buttress and down from the top of the panel) indications of a delamination became evident. Today should be a very important day with respect to defining the extent of the delaminated area.
Bob