04/28/20
Message Overview:
Fault Message:
ADLU SATCOM FAULT
Fault Code:
2320009TDY
Associated CAS:
| Reporting LRU: | Airborne Data-Link Unit |
| System Description: | 23-23-00 |
| Schematic Diagram: | 23-23-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 23-23-01 [ Global Express ] [ G5000 ] [ Global XRS ] 23-23-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
Satellite Communication System (SATCOM) ARINC 429 broadcast data not received by Airborne Data-Link Unit (ADLU). Set when no data is received for 1 minute and cleared when data is received.
Possible Causes:
- Airborne Data-Link Unit (ADLU) (A239)
- Satellite Communication System (SATCOM)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin:
AW 700-23-0584 - Honeywell SDU-600 Obsolescence
AW 700-23-0756 - MCS-7000 Obsolescence
SB 700-23-001 - Modification MCS-6000 SATCOM
SB 700-23-043 - Modification MCS-7000 SATCOM
Forum Articles/Infoservice/Newsletter: None
This fault can be seen if SATCOM is not logged on to a satellite, which could happen when the aircraft is in the hanger.
Make sure the aircraft is out of hangar before proceeding with further troubleshooting steps.
NOTE: If no SATCOM is installed, disregard the fault code.
Quick Links:
| Operational Test of the Satellite Communication System | AMM 23-13-00-710-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Airborne Data-Link Unit | AMM 23-23-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Airborne Data-Link Unit | AMM 23-23-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Do the operational test of the SATCOM system. Is the operational test of the SATCOM system satisfactory?
- If NO, troubleshoot and fix the SATCOM system as required, and then continue with next step.
- If YES, continue with next step.
- Operate the Airborne Data-Link System using SATCOM network to receive the terminal text weather information. Is the NEW message advisory shown on FMS CDU and new message received?
NOTE: Do the initialization of the Flight Management System.
- If YES, verify that CAIMS fault code 2320009TDY 'ADLU SATCOM FAULT' is not displayed on PMAT and do close out.
- If NO, continue with next step.
- Perform wiring checks, short to ground and pin/socket retention checks between the ADLU connector A239AP1 and the SDU connector A228BP1. Is it satisfactory?
- If NO, repair or replace the defective wiring as required and do close out.
- If YES, continue with next step.
- Replace the Airborne Data-Link Unit (ADLU).
NOTE: The ADLU does not receive ARINC broadcast data, when SATCOM/SDU is operational. - Do close out.