108 Engine Indicating (ATA 77) service difficulty reports for the Airbus A321 (all variants) — 0.3% of all reported difficulties.
Most reported components
- WIRE HARNESS 19
- SENSOR 13
- ENGINE 10
- WARNING SYSTEM 9
- UNKNOWN 8
- PROBE 5
- EGT INDICATION 5
- TRANSDUCER 5
- NONE 4
- THERMOCOUPLE 3
- ACCELEROMETER 2
- FAULT MESSAGE 2
- WARNING MESSAGE 2
- SOLENOID VALVE 2
- SENSE LINE 2
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).