Started today by cutting out the oil door.
Centered and taped in place.
Match drilled the holes for the quarter turn fasteners.
Temp installed the quarter turn fasteners. Push the thumb screw in relative to the body to make it easier to get thru the hole.
Match drilled the quarter turn fastener rivet holes.
Cut the oil door hinge brackets apart.
Enlarging the top cowl oil door quarter turn fastener socket holes to full size.
Seems like a huge hole but it works!
Then have to temp assemble the oil door hinge
And then match drill it to the oil door.
Everything mocked up.
Drilling the hinge to the top cowl. I used a straightedge to keep the ears aligned.
Had to notch the edge to provide clearance.
Random distraction....Countersinking the nutplate rivet holes for the cowl exit brace. This thing is stainless so use a cutter that you are willing to sacrifice.
Here is where that thing mounts.
