What was found
PRESSURIZATION BECAME UNCONTROLLABLE. FLIGHT DIVERTED. FOUND E&E EXHAUST VALVE STICKING OPEN. REPLACED VALVE, ALL PRESSURIZATION TESTS WERE NORMAL.
- Difficulty date
- July 8, 2008
- Submitted
- July 15, 2008
- Operation
- Air carrier
- Aircraft
- N518UA
- Make and model
- Boeing 757222
- Aircraft serial
- 24871
- Aircraft time
- 60,770 hours, 20,339 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Outflow Valve
- Condition
- Open
- Location
- Cabin Pressure
- Stage of operation
- CR
- How discovered
- 9
- Nature of condition
- J
- Precautionary procedure
- B, A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.