221 Air Conditioning (ATA 21) service difficulty reports for the Airbus A220 (C Series) — 7% of all reported difficulties.
Most reported components
- UNKNOWN 146
- HEATER 12
- A/C PACK 11
- FILTER 9
- DUCT 6
- FAN 6
- NONE 4
- ACM 3
- VALVE 3
- CABIN AIR SYS 2
- ECS 2
- SENSOR 2
- SEAL 2
- AIR DUCT 1
- CONTROL VALVE 1
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).