TexasCHLforum.com

I've read that having contraband weapons, firearm parts (e.g., a magazine), ammunition, etc. in carry-on luggage will usually not result in state/local charges if the possession was not illegal under state/local law. However, the TSA typically follows up with a letter to the person assessing a pretty stiff fine for violation of TSA regulations.

Note the in the first case, the man was charged with UCW. I assume he is not a CHL licensee. In the second case, the Texas state rep was a CHL, so possession of the firearm on his person was not illegal, per se. However, he will still receive a fine from the TSA that will never hit the news.