The Leith writer took a verbal swipe at the major airline on social media after his jet was delayed by more than two hours.
Welsh was unable to leave because the airline had “lost all the updated flight manuals from our iPads”.
He later tweeted to say the problem had been fixed, but the pilot was waiting for the manual to download.
Welsh compared the incident to “a Mission Impossible films, but with only the crap bits left in”.
He later joked: “Ain’t no party like an @AmericanAir party!”
The airline apologised to the author and fellow passengers tweeting: “Thanks for hanging in there.”
Welsh replied: “They breed em tough in Muirhoose mate.”