What was found
AT FL350 CABIN CLIMBED AT +200 FPM (CRUISE) DURING DESCENT. CABIN CONTROL WAS ERRATIC. REPLACED CABIN OUTFLOW VALVE PER B757 AMM 21-31. C/W NO GO ODI PROCEDURE.
- Difficulty date
- August 24, 2019
- Submitted
- August 27, 2019
- Operation
- Air carrier
- Aircraft
- N674DL
- Make and model
- Boeing 757232
- Aircraft serial
- 25979
- Aircraft time
- 87,218 hours, 38,591 cycles
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Outflow Valve
- Condition
- Failed
- Location
- Cabin Pressure
- Stage of operation
- DE
- 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.