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(WARNING)
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WHITE MESSAGE Require immediate crew attention. These messages are accompanied by flashing master warning, triple chime attenson with or without voice message or dedicated tone. Require immediate crew awareness and future crew action may be required in the form of alternate system selection or performance limitation. These message are accompanied by flashing master caution and a single chime. Indicate safe or normal system operation which require crew awareness, over and above the dark cockpit philosophy. Indicate minor failures or reduction in systems capability, which require no crew action.

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08/07/19

Message Overview:

Fault Message:

LGECU A/WRG/GR DRS SEL VALVE(CLOSE)

Fault Code:

3230196EL

Associated CAS:

GEAR SYS FAIL
(Caution)

Reporting LRU: Landing Gear Electronic Control Unit (LG ECU)
System Description: 32-31-00
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 Doors Selector Valve Close Command output. This fault is usually internal to the LGECU but could be external.

Possible Causes:

  • Landing Gear Doors Selector Valve (L16)
  • Landing Gear Electronic Control Unit (LGECU) (A52)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

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 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:

  1. Re-rack LGECU.

    1. If system checks are good, do close out.
    2. If fault remains, continue with next step.

  2. Perform wiring checks of the Landing Gear Doors Selector Valve CLOSE Command wires between the LGECU connector A52BP1 and the Landing Gear Doors Selector Valve including the ground.

    1. If wiring checks are not good, repair defective wiring as required and do close out.
    2. If wiring checks are good, continue with next step.

  3. Measure Landing Gear Doors Selector Valve Solenoid resistance - between 57 and 65 Ohms at 68°F (20°C).

    1. If resistance is within range, go to step 5.
    2. If resistance is out of range, continue with next step.

  4. Swap Landing Gear Doors Selector Valve with Landing Gear Selector Valve 2.

    1. If system checks are good, replace Landing Gear Doors Selector Valve and do close out.
    2. If fault remains, continue with next step.

  5. Replace LGECU.
  6. Do close out.

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