I used to live in Indy but never travelled ATA.

I do recall that an ATA flight was once diverted to DSM because of a medical emergency and then it was determined that the plane had suffered a mechanical failure on landing. The whole planeload of pax was stuck there until the following day because parts had to be flown in as ATA had no agreement with any other airline at that facility to provide it with parts.

I think the total delay was upwards of 30 hours. This story was part of an news special on the trials and tribulations of flying commercially.

This story is not related for any reason aside from general interest. I do not mean to suggest that ATA suffers from such problems any more than or less than any other carrier.