What was found
ATB, LEVEL 2 AVIONICS AIR FLOW OFF AFTER TAKE OFF, RESULTED IN AIR TURNBACK REMOVED AND REPLACED ENVIRONMENTAL SYSTEM CONTROLLER IAW AMM 21-08-01-400-801. OPS CHECKED NORMAL. ALL TESTS PASSED. NO FAULTS SHOWN.
- Difficulty date
- October 14, 2025
- Submitted
- October 15, 2025
- Operation
- Air carrier
- Aircraft
- N255UP
- Make and model
- Doug MD11F
- Aircraft serial
- 48404
- Aircraft time
- 94,459 hours, 22,028 cycles
- System (JASC)
- 2100 · Air Conditioning System
- Part
- Controller
- Condition
- Faulted
- Location
- Zone 100
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.