What was found
APU IN FLIGHT START FAILED DUE TO A FAULTY INLET DOOR ACTUATOR. UNIT WAS REPLACED AND PLACED APU BACK INTO SERVICE.
- Difficulty date
- August 22, 2021
- Submitted
- September 10, 2021
- Operation
- Air carrier
- Aircraft
- N757QM
- Make and model
- Boeing 75729J
- Aircraft serial
- 27203
- Aircraft time
- 62,711 hours, 33,310 cycles
- System (JASC)
- 5247 · Auxiliary Power Unit (APU) Doors
- Part
- Actuator
- Part number
- 7321387009
- Part serial
- 45118A
- Condition
- Faulty
- Location
- Apu Doors
- Stage of operation
- DE
- How discovered
- O
- Nature of condition
- S
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.