Back when I installed the oil cooler, one of the AN fittings seemed to gall in the threads of the cooler. I left it until now to play with it again. Indeed I could not get the fitting to turn, and I certainly couldn't get it out. So I think I damaged it. Don't want this think sprining a leak when flying, so I ordered a new oil cooler and AN fittings from Jeggs. $80. Oh, well. Piece of mind...
I also reattached the canopy cable. I have new, longer machine screws coming from A/C Spruce so I can finish attaching the canopy to the frame.
Oill cooler removed. The fitting on the right just won't budge.