Today I removed the F-631A canopy channels, drilled the various holes to final size, deburred and riveted the splice plate on. Then I match drilled the canopy upper aft latch handle mounting block to the forward side of the splice plate. With the F-631A channels removed I also countersunk the canopy to channel retaining screw holes and drilled the holes to final size. Lastly I fabricated backing strips for the retaining screws along the aft edge of the rear window.
F-631A canopy channel splice plate riveted
Canopy retaining screw holes countersunk and drilled to final size