thornton thomasetti to speak to their working with the data and looking at the possible repair me havologies, as well. as to the review of the design, some of that's going to be informed by this data gathering for our peer reviews, and thornton thomasetti, just to lend a little more clarity to that. so with that, mr. gibbons. >> thank you, robert. good morning. i'll summarize work that's been undertaken to understand whether any other elements of the building might have been affected by the fracture. so as robert vecchio said, specimens were removed from the girder, so that means about the central 20 inches of the bottom flange was removed and also 6 inches of the vertical stiffener in the middle. so the intent -- for your -- to get a -- an idea of the scale of this, this repair is localized to this region. it's understood that the cause was localized to the hangar, and the holes around the hangar, so what this repair will do is bypass that region and reinstate the bottom flange so it has the same capacity that was originally designed. there have been calculations that have been reviewed and