What was found
APU PNEUMATICS FAILED TO PRESSURIZE ON ENGINE START. 4 PSI ONLY. COMPLIED WITH MEL 3611G APU BLEED VALVE LIGHT OPS NORMAL. APU SURGE CONTROL VALVE. LEAK AND OP'S CHECKED GOOD.
- Difficulty date
- November 7, 2011
- Submitted
- November 11, 2011
- Operation
- Air carrier
- Aircraft
- N665UA
- Make and model
- Boeing 767322
- Aircraft serial
- 29237
- Aircraft time
- 47,995 hours, 12,983 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 4950 · APU Bleed Air System
- Part
- Control Valve
- Part number
- 97980612
- Part serial
- 176
- Condition
- Failed
- 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.