385 Navigation (ATA 34) service difficulty reports for the Boeing 727 — 0.7% of all reported difficulties.
Most reported components
- INDICATOR 64
- ADC 26
- PITOT TUBE 20
- ANTENNA 17
- GYRO 15
- TRANSCEIVER 14
- RADAR 12
- ADI 12
- RECEIVER 12
- ALTIMETER 9
- CADC 8
- RT UNIT 7
- CONNECTOR 7
- PITOT LINE 7
- WIRE 7
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).