<< >> NASA ASRS Report 1664274, July 2019

B737-700 flight crew reported APU auto shutdown in flight causing diversion and precautionary landing due single generator operation per MEL.

Attributes
ACN	1664274
Time
Date	201907
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Generator Drive
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument
Experience	Flight Crew Last 90 Days 250 Flight Crew Type 8500
Person 2
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Experience	Flight Crew Last 90 Days 150 Flight Crew Type 150
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural MEL Deviation - Procedural Published Material / Policy

Narrative:

We were en route to ZZZ from ZZZ1. We were dispatched with MEL 24-1-02 single generator inop. We were running the APU in accordance with the MEL. The MEL was briefed on the ground and we were both aware of the restriction to divert if we lost the APU. The APU then did an auto-shutdown in-flight at cruise altitude. We ran the QRH; sent a note to dispatch and all agreed ZZZ2 was the best divert. We notified ATC; notified dispatch; the crew and the passengers. We ran the divert checklist and landed at ZZZ2 uneventfully.

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Original NASA ASRS Text

Title: B737-700 flight crew reported APU auto shutdown in flight causing diversion and precautionary landing due single generator operation per MEL.

Narrative: We were en route to ZZZ from ZZZ1. We were dispatched with MEL 24-1-02 Single Generator inop. We were running the APU in accordance with the MEL. The MEL was briefed on the ground and we were both aware of the restriction to divert if we lost the APU. The APU then did an auto-shutdown in-flight at cruise altitude. We ran the QRH; sent a note to dispatch and all agreed ZZZ2 was the best divert. We notified ATC; notified Dispatch; the Crew and the Passengers. We ran the Divert Checklist and landed at ZZZ2 uneventfully.

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.