At one time, American Airlines with their silver planes was the most popular airline in the sky. I can’t confirm the following statement because it’s only my opinion, but when AA bought US Air, things shifted tremendously at AA. They took on a lot of debt buying US Air and now find themselves paying a heavy price.
I know or knew several AA pilots. Many of them were either leaving or looking for another airline. I remember during their last union contract, they were accused by the pilot’s and flight attendant’s unions of not bargaining in good faith. Their mechanics union, what’s left of it, has been dissatisfied with AA for years. I think AA has slowly been outsourcing their mechanical work.