316 Flight Controls (ATA 27) service difficulty reports for the Boeing 777 (all variants) — 1.2% of all reported difficulties.
Most reported components
- PCU 49
- FSEU 32
- ACTUATOR 22
- CONTROL UNIT 14
- CONNECTOR 13
- INDICATOR 11
- WIRE HARNESS 10
- SOLENOID 9
- UNKNOWN 9
- CONTROL VALVE 9
- COMPUTER 7
- WARNING SYSTEM 6
- WIRE 6
- WARNING MESSAGE 5
- SWITCH 5
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).