What was found
AIRCRAFT WOULD NOT HOLD PRESSURIZATION. PERFORMED OUTFLOW VALVE L, R QRH ITEMS TO NO AVAIL. REMOVED AND REPLACED LEFT OUTFLOW VALVE ACTUATOR AS PER AMM 21-21-07. OPERATIONAL CHECK GOOD AS PER AMM 21-31-07.
- Difficulty date
- April 27, 2013
- Submitted
- April 29, 2013
- Operation
- Air carrier
- Aircraft
- N451PA
- Make and model
- Boeing 74746NF
- Aircraft serial
- 30809
- Aircraft time
- 53,962 hours, 8,888 cycles
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Actuator
- Part number
- 7242822
- Part serial
- 00031410
- Condition
- Failed
- Location
- Cabin Pressure
- Part time
- 28,705 hours, 4,719 cycles
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.