Since 911, many new chemical sensing devices have been installed and and are in use in many airports gate areas. Any liquids including bottled drinking water cannot be taken to the gates or aboard airliners unless purchased beyond the TSA inspection station. Good chance that hydrocarbons would be detected in the JetCase unless completely purged.
Unlike kerosene, DX330 evaporates without leaving a residual odor.

The last time I transported a JetCase on an airliner, it went as baggage, and at no extra fee....but that was in 1999.

It might be adviseable to contact the airline you intend to use and get all of the facts from them before travelling.

If you find that you can use the JetCase on an airliner, it is a good idea to completely purge the fuel system of any residual kerosene, and then flush it with PPG DX330 "Acryliclean"wax and grease remover to rid the jet of the kerosene fumes and odor.