Group, Our fuel selector valve (prior to Andair) was getting hard to turn to change tanks. Service bulleting # SB020-894 addresses that specific problem in which the original O-rings on the valve (3 each) were supposed to be fuel resistant, but reports were the same problem that we were expericing.....

MC,
The file size is limited, so hence another post. Attached are some additional pictures.
Ed Smith

Monday Evening 3/13/23 MC, I saw your post regarding the adaptation of the new baffling to the old style cowling, but was unable to post until I got registered. By now, this is probably old news, but I'll put it out there. We have the early style cowling where the intercoolers were positioned approx...