#1 shows area to trim away on frame to allow floating hinge to fit after widening frame to align. (See #3 in previous entry).
#2 is a clearer view of yet unriveted hinge to frame attach point.
#3 shows the plywood spacer (5/8th") to position frame C-616 from F-668. Hinges now pass through bulkhead F-668 and ready for positioning hinge blocks (later).
