639 Pneumatic (ATA 36) service difficulty reports for the Bombardier CRJ (all variants) — 0.4% of all reported difficulties.
Most reported components
- WARNING SYSTEM 66
- SHUTOFF VALVE 61
- SENSING ELEMENT 48
- DUCT 44
- LOOP 42
- CLAMP 40
- SENSOR 33
- CONNECTOR 22
- WARNING LIGHT 19
- NONE 19
- WARNING MESSAGE 17
- UNKNOWN 17
- CONTROL UNIT 15
- VALVE 15
- ELEMENT 13
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).