08/01/19
Message Overview:
Fault Message:
EGPWS_B/WRG/DAU #3 INACTIVE
Fault Code:
3146156DAU
Associated CAS:
| Reporting LRU: | Data Acquisition Unit (DAU) 3 |
| System Description: | 34-42-00 |
| Schematic Diagram: | 34-42-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 34-42-01 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
The Data Acquisition System does not receive Aeronautical Radio, Inc. (ARINC) 429 data from the Enhanced Ground-Proximity Warning System (EGPWS) Computer.
Possible Causes:
- Enhanced Ground-Proximity Warning System (EGPWS) Computer (A64)
- Data Acquisition Unit (DAU) 3 (A30)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Quick Links:
| Opening of Non-Thermal Circuit Breakers | AMM 24-00-00-863-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Closing of Non-Thermal Circuit Breakers | AMM 24-00-00-863-802 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Electrostatic Discharge Safety Precautions | AMM 24-00-00-910-802 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Data Acquisition Units (DAU) | AMM 31-42-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Data Acquisition Units (DAU) | AMM 31-42-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Enhanced Ground-Proximity Warning System (EGPWS) Computer |
AMM 34-42-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Enhanced Ground-Proximity Warning System (EGPWS) Computer |
AMM 34-42-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Access to Active Faults | AMM 45-45-00-970-802 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the External Avionics-Compartment Access-Panel (140BB) |
AMM 52-45-11-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the External Avionics-Compartment Access-Panel (140BB) |
AMM 52-45-11-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Safety Precautions - Maintenance Practices - ALL | SPM 20-00-01-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Remove the DAU 3 and EGPWS computer. Perform a continuity check as follows:
From To Result A30CP1-D7 A64BP1-C1 A30CP1-E7 A64BP1-D1 A30CP1-SH A64BP1-SH - If there is no continuity, repair or replace defective wiring as required and do close out.
- If there is continuity, continue with next step.
- Perform a continuity check as follows:
From To Result A30CP1-D7 Ground A30CP1-E7 Ground A30CP1-SH Ground - If there is continuity, repair or replace defective wiring as required and do close out.
- If there is no continuity, continue with next step.
- Swap DAU 3 with DAU 1. Is the fault still present?
- If NO, replace DAU 3 and do close out.
- If YES, continue with next step.
- Replace the EGPWS computer.
- Do close out.