What was found
OUTFLOW VALVE FAILS IN MANUAL MODE. NO DOOR MOVEMENT. VERIFIED 28VDC AT PLUG D2338 WITH SWITCH IN CLIMB OR DESC POS. NEEDS NEW ACTUATOR. REMOVED & REPLACED OUTFLOW VALVE ACTUATOR ASSY. OPS CHECKED GOOD.
- Difficulty date
- August 19, 2012
- Submitted
- October 16, 2012
- Operation
- Air carrier
- Aircraft
- N550UA
- Make and model
- Boeing 757222
- Aircraft serial
- 25398
- Aircraft time
- 77,875 hours, 22,605 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Actuator
- Part number
- 20224806U1
- Part serial
- 103
- Condition
- Failed
- Location
- Outflow Valve
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.