What was found
MANUAL PRESSURIZATION SWITCH WILL NOT OPERATE OUTFLOW VALVE. R & R CABIN PRESSURE OUTFLOW VALVE IAW MM 21-31-03 AND 21-31-04. OPS CKS NORMAL.
- Difficulty date
- August 12, 2013
- Submitted
- August 14, 2013
- Operation
- Air carrier
- Aircraft
- N548UA
- Make and model
- Boeing 757222
- Aircraft serial
- 25396
- Aircraft time
- 81,615 hours, 23,506 cycles
- Engine
- Pwa PW2040
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Outflow Valve
- Condition
- Faulty
- Location
- Cabin Pressure
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.