My flight was scheduled to depart at 5:30 AM on Tuesday morning. However, after the plane took off, it had to make an unexpected and alarming landing almost immediately. The pilot informed us that the plane had been under maintenance all day prior and that the issues were still unresolved. The captain announced a malfunction in one of the engines and assured us that the aircraft was unfit for travel that day. We spent about 30 to 45 minutes taxiing before heading back to the gate. Once we returned to the terminal, I faced a wait of over two hours just to speak with the gate staff, who were quite rude and openly complained about their overtime situation, suggesting that if they left, we would be out of luck. While I appreciated that the two ladies on duty were trying hard to assist with rearranging passengers' itineraries, which must have been stressful for them, it was inconsiderate for them to vent about their frustrations in front of customers who were already inconvenienced and had paid for their travel. This delay extended over ten hours. After waiting for more than two hours, I finally reached someone. A new employee who had just clocked in greeted me with an unprecedented level of disrespect. He explicitly stated he was unaware of the situation and treated me poorly for no apparent reason. I mentioned my two-hour wait and acknowledged that this was a stressful time for both the passengers and the staff. I witnessed some passengers receiving food and hotel vouchers while others, including myself, got nothing. No compensation was offered for such a significant delay. On my return flight with United Airlines, I encountered a similar delay due to maintenance. However, their customer service far surpassed that of American Airlines, with friendly staff who showed compassion and efficiently located a new aircraft within an hour, providing detailed updates that American Airlines failed to offer. Not only did I lose a day of my vacation, but I also incurred unexpected expenses for meals at the airport. I don't think I'll ever fly with American Airlines again, not only because of the lengthy delay but also due to the exceptionally poor customer service I experienced.…