35 Starting (ATA 80) service difficulty reports for the Boeing 747 — 0.1% of all reported difficulties.
Most reported components
- START VALVE 15
- STARTER 9
- WARNING SYSTEM 1
- WARNING LIGHT 1
- SEAL 1
- ECU 1
- COUPLING 1
- UNKNOWN 1
- CABLE 1
- WARNING MESSAGE 1
- O-RING 1
- WIRE 1
- POWER SUPPLY 1
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).