<< >> NASA ASRS Report 1411880, December 2016

A300 flight crew reported losing both engine driven generators during taxi out then they lost the APU generator during taxi in. Rain coming in from the cargo door during loading was thought to have gotten into the generator control panels in the belly of the aircraft.

Attributes
ACN	1411880
Time
Date	201612
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Night
Aircraft 1
Make Model Name	A300
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Component
Aircraft Component	AC Generation
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

Taxi out for takeoff we got a #1 generator fault. We asked to pull aside to work our problem. Followed QRH procedures and started APU. Just as the APU became available; we lost both engine generators and had several electrical faults on the overhead. Our decision was to taxi back to the ramp. While we were taxing back to our ramp we lost the APU generator. At this time were on battery power only. We set parking brake; advised tower of our situation and ask for a tow to our gate. It was later discovered to be caused by water getting in from the main cargo door.

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Original NASA ASRS Text

Title: A300 flight crew reported losing both engine driven generators during taxi out then they lost the APU generator during taxi in. Rain coming in from the cargo door during loading was thought to have gotten into the generator control panels in the belly of the aircraft.

Narrative: Taxi out for takeoff we got a #1 Generator fault. We asked to pull aside to work our problem. Followed QRH procedures and started APU. Just as the APU became available; we lost both engine generators and had several electrical faults on the overhead. Our decision was to taxi back to the ramp. While we were taxing back to our ramp we lost the APU generator. At this time were on Battery power only. We set parking brake; advised tower of our situation and ask for a tow to our gate. It was later discovered to be caused by water getting in from the main cargo door.

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.