What was found
RETURNED TO SFO DUE TO AN AUXILIARY POWER UNIT PROBLEM. P2 SENSOR REPLACED. P2 SENSOR CONFIRMED SHIFTED. SHIFT IN FUEL FLOW SCHEDULE CAUSED APU NO START.
- Difficulty date
- April 16, 2004
- Submitted
- April 26, 2005
- Operation
- Air carrier
- Aircraft
- N665UA
- Make and model
- Boeing 767322
- Aircraft serial
- 29237
- Aircraft time
- 22,313 hours, 6,811 cycles
- Engine
- Pwa PW4052
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Apu
- Condition
- Malfunctioned
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- H
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.