What was found
CREW REPORT: COCKPIT TEMP 90F - CABIN NORMAL. PRESSURIZATION IRREGULAR ON DESCENT DUE TO EXISTING PROBLEM. CABIN CLIMBED TO 8000FT. FOUND CONDITIONED AIR CHECK VALVE FLAPPER DAMAGED. REPLACED FLAPPER.
- Difficulty date
- October 6, 2008
- Submitted
- October 15, 2008
- Operation
- Air carrier
- Aircraft
- N551UA
- Make and model
- Boeing 757222
- Aircraft serial
- 25399
- Aircraft time
- 64,445 hours, 18,604 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Flapper Valve
- Condition
- Damaged
- Location
- Cabin Pressure
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- W
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.