Ya really gotta be carefull traveling with your guitar. I've seen it happen many times, many ways, but with all the string tension on your baby, if it takes a spill, it could mean a broken headstock, even in the original hard shell case. Our repair here is from not loosening the string tension and attempting to have airline baggage folks handle the instrument.
First step was to remove the tuners from the headstock. I used a two part epoxy to make the repair. Brushing it on lightly, both pieces, I reunited the headstock with the neck. Clamping it prooved to be a challenge; as I applied clamp preasure, the two parts wanted to slip off allignment. I had to loosen my clamping preasure so the two parts stayed put!
I'm a bit new to this procedure; when I removed the clamp after curing, I had overflow from the epoxy, requiring sanding the area smooth, removing my overflow.
Well, the ole girl's back in one piece; Not invisible, but quite playable.
Amy, I'd leave this baby home the next time you fly!