445 Air Conditioning (ATA 21) service difficulty reports for the Airbus A330 (all variants) — 2.2% of all reported difficulties.
Most reported components
- UNKNOWN 185
- NONE 34
- FAN 23
- CONTROLLER 23
- ACM 18
- A/C PACK 15
- VALVE 15
- FILTER 13
- CONTROL VALVE 13
- SENSOR 13
- WARNING MESSAGE 7
- OUTFLOW VALVE 6
- HEATER 6
- ELEMENT 5
- DUCT 4
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).