Time to start planning for the engine cowl and one of the things to have is a door so I can check the oil. I had purchased a “hidden hinge” I think from Avery for the door. Since then I came across a Cessna C336 aft engine cowl for free. It had a nice door, so I just drilled out the rivets, stripped the paint and now all I have to do is match-drill the rivets for the frame. It saves time from having to make the door from scratch.
