06/29/21
Message Overview:
Message Name:
HYD 3 QUANTITY INDICATION
| Message Code: | 293OBS008 |
| Effectivity: | All |
| System: | Engine Indicating |
| System Description: | 29-30-00 |
| Schematic Diagram: | 29-13-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 29-00-05 [ Global Express ] [ G5000 ] [ Global XRS ] |
Message Description:
On the Engine Indication and Crew Alerting System (EICAS) Hydraulic Synoptic Page, hydraulic quantity indication is in error.
Possible Causes:
- Hydraulic System 3 Reservoir
- Hydraulic System 3 Reservoir Quantity Transducer (MT145)
- Data Acquisition Unit (DAU) 3 (A30)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Notice To Operators (NTO): None
Flight Operation Notifications Manual (FONM): None
Quick Links:
| Removal of the No. 3 Hydraulic System Reservoir | AMM 29-13-29-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the No. 3 Hydraulic System Reservoir | AMM 29-13-29-400-801 [ 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 ] |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Interchange DAU 3 with DAU 4.
- If system checks are good, replace DAU 3 and do close out.
- If fault remains, continue with next step.
- Perform wiring check between hydraulic system 3 reservoir quantity transducer (MT145) and DAU 3.
- If wiring checks are not good, repair defective wiring as required and do close out.
- If wiring checks are good, continue with next step.
- Replace hydraulic system 3 reservoir.
- Do close out.
