Brief Description: Prepped Control Column Mt Assembly and Bulkhead
Machine countersunk the holes surrounding the bearing holes and the nutplate attach rivet holes in the F-1233B Control Column Mount Brackets. Countersunk the rivet holes in the F-1203A Bulkhead and final-drilled the 4 holes in the bottom per the plans. Removed the excess material in one of the holes using a hand nibler which worked well. Filed and deburred the edges and the holes in the bulkhead
