What was found
APU ONLY PUTTING OUT 11 PSI ON ENG START. NOTABLE TO START ENGS. *S/D* TEE DUCT FWD OF SURGE FAILED. REPLACED AND OPS CHECK APU PNEUMATICS. DUCT PRESS NORMAL.
- Difficulty date
- April 21, 2009
- Submitted
- May 8, 2009
- Operation
- Air carrier
- Aircraft
- N657UA
- Make and model
- Boeing 767322
- Aircraft serial
- 27112
- Aircraft time
- 70,314 hours, 38,842 cycles
- Engine
- Pwa PW4060
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Duct
- Part number
- 38842382
- Condition
- Failed
- Location
- Apu
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- W
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.