10/09/19
Message Overview:
Fault Message:
DAU 4 INTERFACE FAULT
Fault Code:
7735322BRV
Associated CAS:
| Reporting LRU: | Engine Vibration Monitoring Unit (EVMU) |
| System Description: | 77-30-00 |
| Schematic Diagram: | 77-31-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 71-50-01 [ Global Express ] [ G5000 ] [ Global XRS ] 77-31-01 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
There is an error detected between Engine Vibration Monitoring Unit (EVMU) and Data Acquisition Unit (DAU) 4.
Possible Causes:
- Data Acquisition Unit (DAU) 4 (A31)
- Engine Vibration Monitoring Unit (EVMU) (A42)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Possible indication on EICAS display when this CAIMS message fault shows: N1 vibration readout replaced by amber dashes NO ‘VIB’ icon at N2 vibration exceedance
Quick Links:
| 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 Engine Vibration-Monitoring Unit (EVMU) | AMM 77-31-04-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Engine Vibration-Monitoring Unit (EVMU) | AMM 77-31-04-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Perform wiring checks between EVMU and DAU4.
- If wiring checks are not good, repair defective wiring as required and do close out.
- If wiring checks are good, continue with next step.
- Swap DAU 4 with DAU 3.
- If system checks are good, replace DAU4 and do close out.
- If fault remains, continue with next step.
- Replace EVMU.
- Do close out.