03/25/21
Message Overview:
Message Description:
L-TDR Mode S Configuration is invalid.
Possible Causes:
- Mode-S Configuration for Air Traffic Control Transponder 1 (ATC) (A31)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Fault Confirmation Procedure:
- Message# = 5
- Comp Id = A031
- {Term Definitions}
- TDR1-22 1X 350 01 EXCT XXXX-XXXX TTTT-TTTT XXXX-XXXX 350: (FF);CK CONFIG STRP
Quick Links:
| Removal of the Air Traffic Control (ATC) Transponder | AMM 34-54-01-000-801 |
| Installation of the Air Traffic Control (ATC) Transponder | AMM 34-54-01-400-801 |
| Standard Practices - Replace Wiring | SPM 20-12-00-02 |
| Standard Practices -Repair Wiring | SPM 20-12-10-02 |
Troubleshooting Recommendations:
- Check strapping.