5,432 Navigation (ATA 34) service difficulty reports for the Boeing 737 (all variants) — 2.1% of all reported difficulties.
Most reported components
- FMC 1,645
- UNKNOWN 898
- WARNING MESSAGE 715
- TRANSCEIVER 233
- WARNING LIGHT 178
- DISPLAY 175
- RADAR 154
- COMPUTER 107
- CONTROL PANEL 100
- ANTENNA 98
- ADIRU 96
- DRIVE UNIT 74
- PITOT TUBE 66
- WARNING SYSTEM 66
- KEYBOARD 58
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).