133 Oxygen (ATA 35) service difficulty reports for the Boeing 777 (all variants) — 0.5% of all reported difficulties.
Most reported components
- OXYGEN MASK 41
- OXYGEN BOTTLE 23
- OXYGEN SYSTEM 15
- TRANSDUCER 9
- REGULATOR 5
- OXYGEN BOX 4
- MASK 3
- ACTUATOR 3
- O2 GENERATOR 3
- VALVE 2
- BOTTLE 2
- HINGE 2
- PSU 2
- CONNECTOR 2
- DOOR LATCH 2
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).