A B737 pilot reported that after being dispatched with an inoperative engine driven generator; the A...

Attributes
ACN	1664312
Time
Date	201907
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Aircraft 1
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	Climb
Component
Aircraft Component	APU
Person 1
Function	Pilot Flying First Officer
Experience	Flight Crew Last 90 Days 438
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

We started the day with the #2 generator not connecting after engine start. It was then MEL'd so we had to use the APU in flight. On our fourth leg; (ZZZ to ZZZ1) during the climb to FL410; the APU shutdown disconnecting the autopilot and leaving us with only the #1 generator. We ran checklists; coordinated with dispatch and contacted ATC with intentions. We diverted to ZZZ2 [advised ATC] (since we were unsure why the APU shutdown) and landed without incident.

Original NASA ASRS Text

Title: A B737 pilot reported that after being dispatched with an inoperative engine driven generator; the APU shut down in flight for an unknown reason; which necessitated a divert due to single generator operation.

Narrative: We started the day with the #2 generator not connecting after engine start. It was then MEL'd so we had to use the APU in flight. On our fourth leg; (ZZZ to ZZZ1) during the climb to FL410; the APU shutdown disconnecting the autopilot and leaving us with only the #1 generator. We ran checklists; coordinated with Dispatch and contacted ATC with intentions. We diverted to ZZZ2 [advised ATC] (since we were unsure why the APU shutdown) and landed without incident.

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.