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).