So I took my 300x out this weekend. I have flow this helicopter maybe 4-5 times. Powered it up tested the controls while it was on the ground. Everything seemed fine. Got about 10 inches off the ground and then I usually do another check. Hit the rudder one direction it started to turn and then I lost the tail. No control at all completely dead. The thing started to death spiral, since I was 10 inches from the ground I just hit throttle hold and the thing came down without incedent. Lucky me that I wasnt way up in the air. Took it to the hobby shop where we were able to test the tail servo and it was dead, non responsive. They are going to swap it out for me for free but really this isn't a good sign.