What was found
AIR RETURN DUE TO UNRELIABLE AIRSPEED. SWITCHING CADC SIDE TO 2, OPS NORMAL. R & R CADC #1 IAW AMM 34-16-01. PERFORM LEAK CHECK ON #1 SYSTEM IAW AMM 34-11-00-700-801. OPS CHECK NORMAL, NO FAULTS NOTED AT THIS TIME.
- Difficulty date
- May 30, 2023
- Submitted
- June 2, 2023
- Operation
- Air carrier
- Aircraft
- N545JN
- Make and model
- Doug MD11F
- Aircraft serial
- 48545
- Aircraft time
- 90,140 hours, 16,748 cycles
- System (JASC)
- 3400 · Navigation System
- Part
- Control Unit
- Part number
- 4059060901
- Part serial
- 94050629
- Condition
- Inoperative
- Stage of operation
- TO
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.