What was found
APU BLEED AIR APUC DETECTED LOSS OF ABILITY TO PNEUMATICALLY LOAD APU. REPLACED APU DIFFERENTIAL PRESSURE SENSOR IAW AMM. NO ACTIVE FAULTS AFTER OPS CHECK NOTED.
- Difficulty date
- August 13, 2013
- Submitted
- August 15, 2013
- Operation
- Air carrier
- Aircraft
- N225UA
- Make and model
- Boeing 777222
- Aircraft serial
- 30554
- Aircraft time
- 48,679 hours, 5,873 cycles
- Engine
- Pwa PW40903
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Sensor
- Condition
- Faulty
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.