08/07/19
Message Overview:
Fault Message:
L MAIN-GEAR DOOR-UPLOCK SENSOR/WRG
Fault Code:
3230128EL
Associated CAS:
| Reporting LRU: | Landing Gear Electronic Control Unit (LGECU) |
| System Description: | 32-61-00 |
| Schematic Diagram: | 32-61-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 32-61-01 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
There is a problem with the Left Main Gear Door Uplock Sensor and related wiring.
Possible Causes:
- Left Main Gear Door-Uplock Sensor (MT25)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
NOTE: There are CAIMS messages associated with this task as follows:
Quick Links:
| Opening of Non-Thermal Circuit Breakers | AMM 24-00-00-863-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Closing of Non-Thermal Circuit Breakers | AMM 24-00-00-863-802 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Electrical/Electronic Safety Precautions | AMM 24-00-00-910-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Landing Gear Safety Precautions | AMM 32-00-00-910-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Rigging of the Main-Gear Inboard Doors | AMM 32-12-05-820-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Operational Test of the Position Indication System | AMM 32-61-00-710-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Main-Gear Door-Uplock Proximity-Sensors | AMM 32-61-01-000-803 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Main-Gear Door-Uplock Proximity-Sensors | AMM 32-61-01-400-803 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Adjustment of the Main-Gear Door-Uplock Proximity-Sensors | AMM 32-61-01-820-803 [ 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:
- Access the Main Landing Gear (MLG) door assembly. Check if there is damage to the MLG door-uplock proximity sensor and wiring.
- If there is damage to the sensor or wiring, go to step 8.
- If there is no damage, continue with the next step.
- Check if there is damage in the LH main-gear door-uplock sensor target.
- If there is damage, replace the LH MLG door-uplock sensor target and do close out.
- If there is no damage, continue with the next step.
- Perform the Rigging of the Main-Gear Inboard Doors. Is the fault still present?"
- If NO, do close out.
- If YES, continue with next step.
- Perform the Adjustment of the Main-Gear Door-Open Proximity-Sensors. Is the fault still present?
- If NO, do close out.
- If YES, continue with next step.
- Access and disconnect the L MLG pressure bulkhead connector (P431). Perform a continuity check as follows:
From To Result P431-C P431-D - If there is no continuity, go to step 8.
- If there is continuity, continue with next step.
- Perform a continuity check as follow:
From To Result A52AP1-G10 J311-63 A52AP1-H10 J311-64 P311-63 J431-C P311-64 J431-D - If there is no continuity, repair defective wiring as required and do close out.
- If there is continuity, continue with the next step.
- Perform a continuity check as follow:
From To Result A52AP1-G10 Ground A52AP1-H10 Ground - If there is continuity, repair defective wiring as required and do close out.
- If there is no continuity, continue with next step.
- Replace Left Main Gear Door Uplock sensor.
- Do close out.