Here is a technical abstract (free to download) that has lots of pictures about the area they are talking about. This paper is for a different power plant but the issues are similar. WRAL had a nice view of the "nozzle" as well on their story.
EPRI | Product Abstract
The Florida plant has problems with the containment building. They cut a hole in the building to install new equipment (a turbine I think) which overstressed the concrete in some areas and caused it to delaminate and create voids which is a totally different issue.