11,383 Lights (ATA 33) service difficulty reports for the Boeing 767 — 16.4% of all reported difficulties.
Most reported components
- LIGHT 3,451
- BATTERY PACK 1,232
- CONNECTOR 1,061
- LAMP 664
- WIRE 627
- LENS 527
- POWER SUPPLY 486
- CHARGER 438
- BATTERY 430
- BULB 293
- NONE 278
- SIGN 227
- UNKNOWN 204
- FUSE 171
- WIRE HARNESS 144
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).