should be good. Most AC employees, as well as Catsa, have no idea. But as mentioned above, trigger lock, hard case lock, ammunition kept separate.
If by chance they make you go to the side to inspect, for the love of God, do not let the CATSA idiot pull the weapon out of the case and wing it around!!! Saw this at YOW. When I carry my restricted handguns, i usually get away without proving anything except for the paperwork.