75 service difficulty reports for the Airbus A340 (all variants) across 21 systems (19972011).

Reported systems

SystemATAReportsShare
Engine - Turbine/TurbopropATA 721216%
Flight ControlsATA 271013.3%
Landing GearATA 32810.7%
FuselageATA 5356.7%
Equipment & FurnishingsATA 2545.3%
Engine Fuel & ControlATA 7345.3%
DoorsATA 5245.3%
NavigationATA 3445.3%
Fire ProtectionATA 2634%
Air ConditioningATA 2134%
Hydraulic PowerATA 2934%
Engine ExhaustATA 7834%
CommunicationsATA 2322.7%
Auxiliary Power Unit (APU)ATA 4922.7%
OxygenATA 3522.7%
Auto FlightATA 2211.3%
Engine ControlsATA 7611.3%
Nacelles & PylonsATA 5411.3%
Electrical PowerATA 2411.3%
LightsATA 3311.3%
Engine OilATA 7911.3%

Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).

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