What was found
LOG PAGE NR 125045. UNABLE TO CONTROL PRESSURE IN NORM, AUT, IN MAN CABIN START CLIMB WITH OUTFLOW VALVE FULLY CLOSED. FOUND SEAL MISSING ON OUT-FLOW BUTTERFLY VALVE; INSTALLED SEAL; ON OPERATIONAL CHECK FOUND NORMAL IAW MM 21-30-00.
- Difficulty date
- October 20, 2006
- Submitted
- October 30, 2006
- Operation
- Air carrier
- Aircraft
- N450ML
- Make and model
- Doug DC1030F
- Aircraft serial
- 47831
- Aircraft time
- 94,915 hours, 16,961 cycles
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Seal
- Condition
- Missing
- Location
- Outflow Valve
- 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.