07/30/19
Message Overview:
Fault Message:
DC2LO/WRG/DAU 3
Fault Code:
3145004DAU
Associated CAS:
| Reporting LRU: | Data Acquisition Unit (DAU) 3 |
| System Description: | 31-40-00 |
| Schematic Diagram: | 31-42-00 [ Global Express ] [ G5000 ] [ Global XRS ] 35-11-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 31-42-03 [ Global Express ] [ G5000 ] [ Global XRS ] 35-12-01 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
The Data Acquisition Unit (DAU) 3 senses a malfunction in the status from the Oxygen Pressure Transducer.
Possible Causes:
- Oxygen Pressure Transducer (MT132)
- Data Acquisition Unit (DAU) 3 (A30)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Quick Links:
| 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 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 ] |
| Operational Test of the Crew Oxygen System | AMM 35-10-00-710-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Oxygen Pressure Transducer | AMM 35-12-09-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Oxygen Pressure Transducer | AMM 35-12-09-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Access to Active Faults | AMM 45-45-00-970-802 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Forward Equipment-Compartment Access-Panels (131AL/132AR) |
AMM 52-45-05-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Forward Equipment-Compartment Access Panels (131AL/132AR) |
AMM 52-45-05-400-801 [ 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 DAU 3 to get access to the connector A30AP1 and disconnect the MT132P1 from oxygen pressure transducer. Perform a continuity check as follows:
From To Result A30AP1-D11 MT132P1-4 A30AP1-E11 MT132P1-5 A30AP1-SH MT132P1-SH - If there is no continuity, repair or replace defective wiring as required and do close out.
- If there is continuity, continue with the next step.
- Perform a continuity check as follows:
From To Result A30AP1-D11 Ground A30AP1-E11 Ground A30AP1-SH Ground - If there is continuity, repair or replace defective wiring as required and do close out.
- If there is no continuity, continue with the 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 oxygen pressure transducer.
- Do close out.