What was found
APU BLEED VLV CYCLES CLOSED UNCOMMANDED.
- Difficulty date
- December 19, 2013
- Submitted
- December 20, 2013
- Operation
- Air carrier
- Aircraft
- N550UA
- Make and model
- Boeing 757222
- Aircraft serial
- 25398
- Aircraft time
- 83,156 hours, 23,989 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 4950 · APU Bleed Air System
- Part
- Bleed Valve
- Condition
- Malfunctioned
- Location
- Apu
- 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.