08/08/19
Message Overview:
Fault Message:
LDG GR SELECTOR VALVE #2/WRG (DOWN)
Fault Code:
3230263EL
Associated CAS:
| Reporting LRU: | Landing Gear Electronic Control Unit (LG ECU) |
| System Description: | 32-11-00 |
| Schematic Diagram: | 32-31-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 32-31-01 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
Landing Gear Electronic Control Unit (LG ECU) has detected a failure with the Landing Gear Selector Valve #2 DOWN command signal going to the valve.
Possible Causes:
- Landing Gear Electronic Control Unit (LG ECU) (A52)
- Landing Gear Selector Valve System 2 (L49)
- Landing Gear Control Handle A2 (S3)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
- If selector valve has been cold soaked check L49P1 pins D and E for open circuit on "B" Solenoid.
- Check Terminal Block TM7 for Loose connections.
Quick Links:
| Functional Test of the Extension and Retraction System | AMM 32-30-00-720-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Landing-Gear Control Handle | AMM 32-31-05-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Landing-Gear Control Handle | AMM 32-31-05-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Landing-Gear Electronic Control-Unit (LG ECU) | AMM 32-31-09-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Landing-Gear Electronic Control-Unit (LG ECU) | AMM 32-31-09-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the No. 2 System Landing-Gear Selector-Valve | AMM 32-31-13-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the No. 2 System Landing-Gear Selector-Valve | AMM 32-31-13-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the No. 3 System Landing-Gear Selector-Valve | AMM 32-31-15-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the No. 3 System Landing-Gear Selector-Valve | AMM 32-31-15-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Landing-Gear Door Selector-Valve | AMM 32-31-17-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Landing-Gear Door Selector-Valve | AMM 32-31-17-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Re-rack LGECU.
- If system checks are good, do close out.
- If fault remains, continue with next step.
- Measure for resistance of Landing Gear Selector Valve 2 Solenoid B. Resistance must be between 57 and 65 Ohms at 68°F (20°C).
- If resistance out of range, go to step 4.
- If resistance within range, continue with next step.
- Perform wiring checks between LGECU, landing gear selector valve 2 (solenoid B-DOWN command), and landing gear control handle.
- 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 Landing Gear Selector Valve 2 with Landing Gear Selector Valve 3.
- If system checks are good, replace Landing Gear Selector Valve 2 and do close out.
- If fault remains, continue with next step.
- Replace LGECU.
- Do close out.
