What was found
OUTFLOW VALVE INDICATING HALF OPEN DURING WHOLE FLIGHT AND DIFF PRESSURE INDICATING HALFWAY ON THE YELLOW LINE, VERY CLOSE TO MAX DIFF PRESS. PERFORMED FIM PROCEDURES 21-31 FT 803 NO FAULTS FOUND.
- Difficulty date
- February 4, 2025
- Submitted
- February 11, 2025
- Operation
- Air carrier
- Aircraft
- N563NC
- Make and model
- Boeing 7673BG
- Aircraft serial
- 30563
- Aircraft time
- 85,469 hours, 21,854 cycles
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Outflow Valve
- Condition
- Malfunctioned
- Location
- Zone 100
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.