302 Auxiliary Power Unit (APU) (ATA 49) service difficulty reports for the Airbus A330 (all variants)1.5% of all reported difficulties.

Most reported components

  • APU 57
  • OIL SYSTEM 27
  • NONE 22
  • EXCITER 16
  • IGNITER 14
  • OIL COOLER 14
  • UNKNOWN 14
  • BLEED VALVE 9
  • ACTUATOR 8
  • FILTER 8
  • PUMP 7
  • STARTER 7
  • FCU 6
  • VALVE 5
  • WARNING MESSAGE 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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