Yugow

That's an interesting theory! I noticed the problem only a very short time before the plane went to the annual, where they told me the seat tracks were worn. But I haven't had a chance to check if the problem could just come from some of this gross stuff jammed in the rail holes

Yes I'm thinking about this option too, the part doesn't look very complicated to machine... It's from the legal point of view, i'm quite a newbie aircraft owner, and don't know if this kind of thing would be legally OK or not

unfortunately the copilot rails are worn to the same degree

Hello! This is my first post here, but this forum has already been the source of a lot of useful information I live in Canada and have recently bought a 1962 M20C. The problem that I have is that its seat tracks are worn: if i give it a good shake the pilot seat can unlock and move all the way backwards - not very safe... Me and the mechanic have been unable to find seat tracks for a 1962 M20C, as apparently they're not the same parts as post-1962 models. Do you have an idea of where I might be able to find this part? Or have another solution to this problem? Like would it be possible to change the whole seat tracks system for that of a later model/another brand? I am pretty desperate... Thanks for your help!