I was on a flight from Dallas to Austin on Southwest Airlines I’ve been flying all my life Dad worked for American and I’m a person that looks over the plane when I’m getting situated. I’ve got a window seat I look out to the wing and everything looks fine to me. When we get airborne I order a drink and I look out about 10 minutes into it the flight look out to see 14 screws backing out of an access panel I snagged a flight attendant and ask her for a double. I kept my mouth shut till We were on the ground and then I was the last off the plane. The Stewardess came back to me and said are you OK I pointed out the window and told Her that I watched the screws back out for last 30 minutes of our flight.
I also had one with the rivets popping out and one corner of sheet metal flapping in the wind, on the wingtop. It was fine. A bit stressful, better than the movie, tho.
I think your times are off. Perhaps you had to circle around several times before final approach at Austin...
In the early 1960s, I had numerous flights from Dallas Love field to Houston Hobby. Old DC-3s built in 1930s made the flight in 55 minutes.
Dallas to Ft. Worth- 5-7 minutes. Dallas to Austin was about 30 minutes, barely time to finish a drink.