What was found
AIRCRAFT WAS NOT GROUNDED: CABIN WOULD NOT PRESSURIZE WITH THE FORWARD OUTFLOW VALVE FULLY CLOSED. UPON ARRIVING AT THE GATE. FOUND OUTFLOW VALVE FULLY OPEN. MAINTENANCE REPLACED OUTFLOW VALVE MOTOR AMM 21-00.
- Difficulty date
- March 17, 2025
- Submitted
- March 18, 2025
- Operation
- Air carrier
- Aircraft
- N784AN
- Make and model
- Boeing 777223
- Aircraft serial
- 29588
- Aircraft time
- 95,172 hours, 11,798 cycles
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Motor
- Part number
- 27044703
- Condition
- Inoperative
- Location
- Zone 100
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.