What was found
LOST CABIN PRESSURE AND WAS UNABLE TO CONTROL IN MANUAL MODE. FAULTY OUTFLOW VALVE. REPLACED OUTFLOW VALVE. SHOP FINDINGS: FOUND FAILED AC MOTOR. REPLACED AC MOTOR. UNIT MADE SERVICEABLE.
- Difficulty date
- December 23, 2006
- Submitted
- May 16, 2007
- Operation
- Air carrier
- Aircraft
- N331UA
- Make and model
- Boeing 737322
- Aircraft serial
- 24192
- Aircraft time
- 53,396 hours, 28,970 cycles
- Engine
- Cfmint CFM563C1
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Outflow Valve
- Part number
- 7110033
- Part serial
- 109642
- Condition
- Faulty
- Location
- Cabin Pressure
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.