What was found
APU BLEED ISOLATION VALVE FAILED AT DEPARTURE. REPLACED FAULTY APU SURGE CONTROL VALVE. CKS GOOD, NO MSG DISPLAYED.
- Difficulty date
- April 24, 2010
- Submitted
- May 5, 2010
- Operation
- Air carrier
- Aircraft
- N799UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26926
- Aircraft time
- 52,903 hours, 7,764 cycles
- Engine
- Pwa PW4090
- System (JASC)
- 4950 · APU Bleed Air System
- Part
- Isolation Valve
- Part number
- 32908144
- Condition
- Faulty
- Location
- Apu Bleed Sys
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.