233 Nacelles & Pylons (ATA 54) service difficulty reports for the Boeing 777 (all variants) — 0.9% of all reported difficulties.
Most reported components
- HEAT SHIELD 41
- STRIP 24
- SPAR 18
- FRAME 16
- SKIN 15
- FASTENER 14
- PANEL 13
- WEB 12
- COVER 7
- SEAL 7
- ACCESS PANEL 7
- BRACKET 6
- STRUCTURE 6
- FITTING 4
- ANGLE 4
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).