I am a private pilot, and I am interested in carrying a firearm on my day flights for survival purposes (in case of an emergency landing). The airport I fly out of does have a passenger terminal with a 'sterile' area with two major airline carriers. However, I do not enter or exit through the terminal. I use a general aviation entrance/exit. I do have a current GFL, and I would be carrying the gun in my flight bag, which would be within reach during the flight. Would this situation be legal? Also, could a passenger carry if he/she had a GFL? PS. I tried to search and found nothing. Sorry if this has been covered already.