144 Engine Air (ATA 75) service difficulty reports for the Boeing 727 — 0.3% of all reported difficulties.
Most reported components
- DUCT 39
- CLAMP 18
- BLEED VALVE 18
- VALVE 12
- PRBC 7
- ANTI-ICE DUCT 5
- LINE 3
- PRBC VALVE 2
- TUBE 2
- ENGINE 2
- SHUTOFF VALVE 2
- CONTROL VALVE 2
- SCREEN 2
- GASKET 2
- CONTROLLER 2
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).