Hi, noob here....saw all the commentary re: airports and posession, and thought I would share this comment post from a person called George on a news web article about Brian Aitken.---
"Federal law 18 USC 926A entitles a person to transport a firearm; however, people have been arrested for having an unregistered handgun when flying out of N.Y. airports. In 2005, Gregg C. Revell was traveling through Newark Airport but because of a missed flight he was given his luggage that included a properly checked firearm and he was forced to spend the night in New Jersey. When he returned to the airport the following day and checked his handgun he was arrested for illegal possession. Mr. Revell lost his lawsuit after The US Court of Appeals for the Third Circuit held in Gregg C. Revell v. Port Authority of New York and New Jersey, [200] held that “Section 926A does not apply to Revell because his firearm and ammunition were readily accessible to him during his stay in New Jersey.” This opinion will apply to NY airports. If you miss a flight or for any other reason your flight is interrupted and the airline tries to return you luggage that includes a checked firearm, you can not take possession of the firearm if you are taking a latter flight. Traveling through New York City, even with a license issued from another jurisdiction within New York State, must be done carefully (locked box, in vehicle’s trunk, no unnecessary stops). "