294 Engine Fuel & Control (ATA 73) service difficulty reports for the Airbus A321 (all variants) — 0.8% of all reported difficulties.
Most reported components
- EEC 47
- WARNING SYSTEM 36
- UNKNOWN 17
- PUMP 16
- FUEL FILTER 16
- FADEC 15
- SENSOR 14
- WIRE HARNESS 13
- VALVE 11
- THERMOCOUPLE 8
- HMU 7
- FILTER 6
- FMU 6
- METERING UNIT 5
- ENGINE 5
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).