511 Starting (ATA 80) service difficulty reports for the Boeing 737 (all variants) — 0.2% of all reported difficulties.
Most reported components
- START VALVE 177
- STARTER 164
- UNKNOWN 33
- SWITCH 26
- CONNECTOR 12
- MAGNETIC PLUG 11
- WARNING LIGHT 11
- VALVE 6
- WIRE HARNESS 4
- ADAPTER 4
- CHIP DETECTOR 4
- CIRCUIT BREAKER 3
- CLAMP 3
- ENGINE 3
- BRAKE 3
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).