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).

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