<< >> NASA ASRS Report 908584, September 2010

An A320 flight crew returned to their departure station upon receipt of and ECAM aileron servo warning.

Attributes
ACN	908584
Time
Date	201009
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Aircraft 1
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Aileron Control System
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 200 Flight Crew Total 20000 Flight Crew Type 3500
Person 2
Function	First Officer Pilot Flying
Experience	Flight Crew Last 90 Days 200 Flight Crew Total 9000 Flight Crew Type 850
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

ECAM indication of flight control aileron servo during climb. Conferred with dispatch and maintenance control via radio. In collaboration with dispatch; since it was a flight control issue we elected to return to ZZZ. Also; as a precaution should the problem escalate; an emergency was declared (souls on board); the cabin advised to prepare the passengers and that we were approximately 10-15 minutes from landing. I do not believe we received any priority handling; however the fire/rescue equipment did follow us upon landing. Landing was otherwise uneventful. My understanding from the post flight maintenance report is that there was an autoflight ELAC2 fault; as well as an ELAC2 aileron 'order disagree'. We changed airplanes and continued uneventfully to our original destination.

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Original NASA ASRS Text

Title: An A320 flight crew returned to their departure station upon receipt of and ECAM Aileron Servo warning.

Narrative: ECAM indication of flight control Aileron Servo during climb. Conferred with Dispatch and Maintenance Control via radio. In collaboration with Dispatch; since it was a flight control issue we elected to return to ZZZ. Also; as a precaution should the problem escalate; an emergency was declared (Souls on Board); the cabin advised to prepare the passengers and that we were approximately 10-15 minutes from landing. I do not believe we received any priority handling; however the fire/rescue equipment did follow us upon landing. Landing was otherwise uneventful. My understanding from the post flight maintenance report is that there was an autoflight ELAC2 fault; as well as an ELAC2 Aileron 'order disagree'. We changed airplanes and continued uneventfully to our original destination.

Data retrieved from NASA's ASRS site as of April 2012 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.