133 Water & Waste (ATA 38) service difficulty reports for the Boeing 777 (all variants) — 0.5% of all reported difficulties.
Most reported components
- VALVE 17
- TOILET 14
- COMPRESSOR 5
- UNKNOWN 5
- LINE 5
- BLOWER 5
- POTABLE WATER 4
- SENSOR 4
- SWITCH 3
- WATER SYSTEM 3
- LAVATORY 3
- SINK 3
- RELAY 3
- WATER HEATER 2
- WASTE TANK 2
Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).