I just completed my Latin Pass and had no problem except on TWA. The flights were amazing one plane the padding had worn out and was like sitting in a metal seat. Very uncomfortable seat the worst.
Upon my return we were told to board as maintenance, was about to finish up, 2 hours later still onboard waiting finally they then decide to fuel up. I got in at 1:30 am instead of 10:00 Pm.
The thing that kills me about TWA and Northwest is they fly these 30 year old DC9", mine was 32 years old. If it is a maintenance issue it does not count against their on time delivery, because the government doesn't want airlines to slop through their work. So officially they can be the on time machine even if every flight is 5 hours late because of Maintenance.
They then tell us they are ordering a plane every 10 days, but if you look into this they have put off the deliveries because of a cash problem. Well I wonder why they have lost money for 12 years straight. Maybe they should move their hub to a third world country, since they operate like one.