122 Engine Air (ATA 75) service difficulty reports for the Boeing 777 (all variants) — 0.5% of all reported difficulties.
Most reported components
- ACTUATOR 31
- BLEED VALVE 14
- VALVE 12
- SHUTOFF VALVE 11
- CONTROLLER 6
- THERMOCOUPLE 6
- SOLENOID 5
- ANTI-ICE VALVE 5
- DUCT 3
- PROBE 3
- PIN 2
- PRECOOLER 2
- CONNECTOR 2
- WARNING MESSAGE 2
- ANTI ICE VLV 1
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).