I'm pretty new to flying and just after my trainer and I flew 6 flights together we landed. This too was a NexStar with a OS 46 and when I went to do my solo flight we could not get it to stay fired up. I had a few guys look at it and made many adjustments to the neddle valve, but still would not stay running. Well I went home with out the solo flight. When I got back to my shop I went to check the fuel tank and clunk and replaced the fuel lines. As soon as I pulled one of the fuel line thats when I found that both screws were missing from the carb. I was luckey I did not get off the ground. Sorry to here you lost yours in flight. I check all the screws now before flight. No never seize or Loctite just righty tighty.