I offer this with the thought that someone else like me was unaware of it.
My Mooney Alon (A2A) has cabin air intakes under each wing root just next to the MLG leg, just like all Alons. It also had plastic ventilators on each side of the windshield. In hot weather you still never got enough air. I'd had the plane a couple of years when one day working under the plane I happened to be in line with one of the air intakes. I shone a flashlight up into the tube and way up in there I saw a screen. It was clogged. When I cleaned it I got much more air. This screen was at the inside end of the intake tube and appeared to be made of plastic like that used on some home window screens. It apparently fit over the inside end of the tube with the hose then fitting over it. It could only be replaced with the wing removed. I don't know if all Alons have that screen, but if so they probably tend to get clogged. For parts manuals I used the Mooney M10 manual, the Blue 415 series manual, Univairs parts and price manuals, Skyports Catalog and other companies parts manuals such as A/C Spruce, etc. Alons have their own Bulletins and of course AD's. As I recall that screen shows in one of the illustrations in the Mooney manual but is not listed. Also in the one I had it was so faint it was easily overlooked. Cliff.....
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