What was found
LAVATORY 4G SINK BOWL FULL OF GREY WATER AND OVERFLOWING, FOWL ODOR THROUGH OUT CABIN. TROUBLESHOT SYS. RESTRICTOR VALVE DEACTIVATED OPEN LOCKED FOR REPAIR UNLOCKING LAV 4G SINK BOWL OPS CHECK GOOD, NO OVERFLOW IAW AMM 38-31-00.
- Difficulty date
- January 28, 2026
- Submitted
- January 30, 2026
- Operation
- Air carrier
- Aircraft
- N2644U
- Make and model
- Boeing 777300ER
- Aircraft serial
- 63724
- Aircraft time
- 37,350 hours, 4,002 cycles
- System (JASC)
- 3830 · Waste Disposal System
- Part
- Valve
- Condition
- Stuck
- Location
- Zone 900
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- B
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.