07/31/19
Message Overview:
Fault Message:
DAU #3[DO CARD]/WRG[CONN A PIN A13]
Fault Code:
3145122DAU
Associated CAS:
| Reporting LRU: | Data Acquisition Unit (DAU) 3 |
| System Description: | 31-40-00 |
| Schematic Diagram: | 31-43-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 31-43-01 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
The Data Acquisition Unit (DAU) 3 senses a fault related to the LAMP TEST RELAY Power Source.
Possible Causes:
- Data Acquisition Unit (DAU) 3 (A30)
- Secondary-Power Distribution Assembly (SPDA) 1 (A13)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Quick Links:
| Connect Electrical Power to the Aircraft | AMM 24-00-00-861-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Remove the Electrical Power from the Aircraft | AMM 24-00-00-861-802 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Electrical/Electronic Safety Precautions | AMM 24-00-00-910-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Electrostatic Discharge Safety Precautions | AMM 24-00-00-910-802 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Secondary-Power Distribution Assemblies | AMM 24-62-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Secondary-Power Distribution Assemblies | AMM 24-62-01-400-801 [ 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 Lamp Test Relay | AMM 31-42-05-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Lamp Test Relay | AMM 31-42-05-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Access to Active Faults | AMM 45-45-00-970-802 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Access to Stored Faults | AMM 45-45-00-970-803 [ 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:
- Check that the LAMP TEST RELAY energizes when LAMP TEST is started by performing the following steps:
- In the flight compartment, set the PBA switch to BRT on the COCKPIT LIGHTS (INTEGRAL) control panel.
- On the EMS CDU, momentarily push the SYSTEM TEST pushbutton. Check that the SYSTEM TEST menu shows on the display.
- Set the left Line Select Key (LSK) to LAMP TEST 1. Check that the LAMP TEST1 OFF is highlighted.
- Set the right LSK to LAMP TEST 1. Check that the OFF changes to TEST.
- Check if the EMS CDU 1 and 2 annunciator lights come on.
- If NO, replace the lamp test relay and do close out.
- If YES, continue with the next step.
- Remove the DAU 3 to get access to the connector A30AP1 and SPDA No.1 to get access to the connector A13P1 and A13P2. Perform a continuity check as follows:
From To Result A30AP1-A13 A13P1-f A30AP1-A13 A13P2-k - 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 A30AP1-A13 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 SPDA 1.
- Do close out.