Pg. 29-03 Step 7-9: Separated, deburred and primed F-1202J- L&R Inst Stack Angles, F-1202K-L&R Instr Stack Supports and F-1202M- L&R Canopy Attach Doublers. Deburred and primed F-1201R Antenna Shelf, F-1201P-L&R Firewall Spacers. Pg. 29-02 Step 1: Cut two 4 1/4 lengths of AN 257-P3 piano hinge to make F-12116-L&R Mid Cowl Hinges. Cut off unused loops from hinges. Step 2: Cut two 26 lengths of AN 257-P3 piano hinge to make F- 1201J&K Upper Cowl Hinges.