What was found
AT 33,000 FEET LOST PRESSURE SYSTEMS 1 AND 2, WENT TO MANUAL. OK WITH CABIN PRESSURE. REMOVED AND REPLACED OUTFLOW VALVE IAW AMM 21-31-51.
- Difficulty date
- April 5, 2013
- Submitted
- April 8, 2013
- Operation
- Air carrier
- Aircraft
- N536UW
- Make and model
- Airbus A321231
- Aircraft serial
- 4025
- Aircraft time
- 11,505 hours, 4,439 cycles
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Outflow Valve
- Part number
- 2079003AC
- Part serial
- 11116416
- Condition
- Malfunctioned
- Location
- Cabin Pressure
- Part time
- 4,990 hours, 1,743 cycles
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.