I've been able to download a copy of TO 1B-26K-4, the IPC, and it really doesn't show much on the breakdown of the elevator. The surface itself, hinges and torque tubes and gap seals are about it. I suspect that you would have to bounce back to an A, B or C model IPC , or even the drawings to get much more data. Elevator drawing is 5122121, and that's for a covered part, but it's 17 pages and details all the internal structure.