06/29/21
Message Overview:
Message Name:
GND LIFT DUMP PREFLIGHT TEST FAILS
| Message Code: | 276OBS001 |
| Effectivity: | All |
| System: | Ground Lift Dumping Panel |
| System Description: | 27-60-00 |
| Schematic Diagram: | 27-60-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 34-61-01 [ Global Express ] [ G5000 ] [ Global XRS ] |
Message Description:
During the pre-flight tests, the Ground Lift Dumping test fails.
Possible Causes:
- Ground Lift Dumping and Auto Brake Control Panel (AP23)
- Radio Altimeter Transceiver (RAD ALT) 1 (A67)
- Radio Altimeter Transceiver (RAD ALT) 2 (A68)
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter:
- Forum vol15 issue14 2018-07-11 - Ground Lift Dump (GLD) Preflight Check and Radio Altimeter Indications
Quick Links:
| Visual Check of the Landing Gear Position and Warning System | AMM 32-60-00-210-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Remove the Aircraft from a Weight-Off-Wheel Configuration with the Aircraft on the Ground |
AMM 32-61-00-867-802 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Put the Aircraft in a Weight-On-Wheel Configuration with the Aircraft on Jacks |
AMM 32-61-00-867-803 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Adjustment of the Main-Gear Weight-On-Wheels (WOW) Proximity-Sensors |
AMM 32-61-01-820-806 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Operational Test of the Radio Altimeter System | AMM 34-44-00-710-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Radio Altimeter Transceivers | AMM 34-44-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Radio Altimeter Transceivers | AMM 34-44-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Please refer to the Forum Article - Radio Altimeter- Failure of GLD preflight check for details on the possible causes and rectification.
- Do close out.