Narrative:

After push back from our gate at ZZZ; we started the left engine. The left generator failed to come on line; so we were towed back to the gate and advised maintenance of our problem. Maintenance placarded the left engine generator per MEL and we were dispatched with the APU generator and the right engine-driven generator. After approximately one hour of flight; at FL290; the APU flamed out leaving us with only one generator. [ATC was advised] and we diverted to [a suitable airport]. The cabin crew was briefed and a PA was made to the passengers. The QRH was performed; and an attempt to start the APU was made. We were unable to restart it. After an uneventful landing [we] taxied to the gate.

Google
 

Original NASA ASRS Text

Title: MD-82 flight crew reported diverting to a suitable alternate when the APU failed after being dispatched with the left generator inoperative.

Narrative: After push back from our gate at ZZZ; we started the left engine. The left generator failed to come on line; so we were towed back to the gate and advised maintenance of our problem. Maintenance placarded the left engine generator per MEL and we were dispatched with the APU generator and the right engine-driven generator. After approximately one hour of flight; at FL290; the APU flamed out leaving us with only one generator. [ATC was advised] and we diverted to [a suitable airport]. The cabin crew was briefed and a PA was made to the passengers. The QRH was performed; and an attempt to start the APU was made. We were unable to restart it. After an uneventful landing [we] taxied to the gate.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.