78 Windows (ATA 56) service difficulty reports for the Boeing 747 — 0.3% of all reported difficulties.
Most reported components
- WINDOW 54
- WINDSHIELD 14
- SEAL 2
- UNKNOWN 2
- SEALANT 1
- TERMINAL 1
- CONNECTOR 1
- SOCKET 1
- WINDOW FRAME 1
- NONE 1
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).