CH-640 Fuselage Front Z and torque tube tunnel (10 of 70)




Drill 20-F-15-5 for A6 rivets.  Position 20-F-15-5 so that the bearing hole is lined up with the front panel hole on 20-F-15-1.  Now drill through 20-F-15-5 into 20-F-15-1 for the 4 A6 rivet holes.  The IPL says to drill 3/16
Drill 20-F-15-5 for A6 rivets. Position 20-F-15-5 so that the bearing hole is lined up with the front panel hole on 20-F-15-1. Now drill through 20-F-15-5 into 20-F-15-1 for the 4 A6 rivet holes. The IPL says to drill 3/16" holes... however I have found that an A6 rivet does not fit in a 3/16" hole. I used a #10 drill bit and they fit very nicely now.