5,888 Lights (ATA 33) service difficulty reports for the Boeing 727 — 10.7% of all reported difficulties.
Most reported components
- BATTERY PACK 1,618
- LIGHT 1,577
- BATTERY 750
- WIRE 263
- POWER SUPPLY 200
- BULB 149
- CONNECTOR 122
- BATTERIES 112
- LAMP 87
- SIGN 87
- EEL BATTERY PACK 77
- EEL 62
- CHARGER 45
- LENS 42
- EEL BATTERY 38
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).