What was found
COULD NOT PRESSURIZE AIRCRAFT. *S/D* FOUND GROUND CART AIR HOOKUP FLAPPER VALVE STUCK IN THE FULL OPEN POSITION. VALVE WAS RESET TO CLOSED POSITION AND SPRINGS LUBRICATED. SUBJECT VALVE WAS REPLACED.
- Difficulty date
- June 27, 1997
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N934UA
- Make and model
- Boeing 737522
- Aircraft serial
- 26662
- Engine
- Ge CFM56*
- System (JASC)
- 2130 · Cabin Pressure Control System
- Part
- Flapper Valve
- Condition
- Stuck Open
- Location
- Extl Pwr Door
- Component
- Boeing · 69291413
- Stage of operation
- NR
- Nature of condition
- J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.