First of all- Ashley, there is no reason to shout.

Next- Yes, everything on the Nexstar in question was as straight as myself and two other instructors could get it. Obviously that's the first thing we checked. And a great many other experienced flyers have reported similar happenings here.

Next- Britbrat, the wing bolt WAS engaged with the threaded recepticle. The wing would not have stayed on at all if it wasn't. There is nothing else for the bolt to go into. It is quite possible and even likely that the plastic threaded recepticle had it's threads stripped out from repeated attempts to get the wing on tight enough. The bolt would screw down only so tight, and then it would just turn in place. In any case, this wing hold-down system on this particular plane was just not robust enough.

Guys, I am not just making this stuff up to see my post counter go up. I thought that I would add a few comments to this discussion about how my friends and I have encountered and responded to problems that others might have also. I do know how to set up and fly a Nexstar. I'm just trying to help others.