FlightFinder

13,963 Lights (ATA 33) service difficulty reports for the Boeing 777 (all variants) — 53.4% of all reported difficulties.

Most reported components

  • LIGHT 4,375
  • BATTERY PACK 2,483
  • LENS 2,061
  • POWER SUPPLY 920
  • BATTERY 856
  • LAMP 788
  • CONNECTOR 523
  • SIGN 321
  • BULB 299
  • CHARGER 240
  • WIRE 148
  • COVER 145
  • FUSE 109
  • GUARD 54
  • PIN 52

Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).

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