What was found
CABIN PRESSURE CANNOT BE MAINTAINED IN DESCENT. *S/D* FOUND OUTFLOW VALVE FRAME SEAL MISSING. REPLACED FRAME SEAL. OPERATIONS CHECK NORMAL.
- Difficulty date
- June 4, 2001
- Submitted
- July 10, 2001
- Operation
- Air carrier
- Aircraft
- N7277U
- Make and model
- Boeing 727222
- Aircraft serial
- 21424
- Aircraft time
- 64,866 hours, 37,176 cycles
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Seal
- Part number
- 7133991
- Condition
- Missing
- Location
- Outflow Valve
- Stage of operation
- DE
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.