307 Flight Controls (ATA 27) service difficulty reports for the Airbus A321 (all variants)0.8% of all reported difficulties.

Most reported components

  • ACTUATOR 65
  • COMPUTER 39
  • FLAP SYSTEM 22
  • UNKNOWN 20
  • SLAT SYSTEM 15
  • STRUT 12
  • PROXIMITY SENSOR 11
  • LIMITER 9
  • HINGE FITTING 9
  • CONTROL SERVO 6
  • NONE 6
  • RELAY 5
  • SENSOR 5
  • WARNING MESSAGE 5
  • CONTROL UNIT 4

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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