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(WARNING)
RED MESSAGE (CAUTION)
AMBER MESSAGE (ADVISORY)
CYAN MESSAGE (STATUS)
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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08/08/19

Message Overview:

Fault Message:

LG ECU CH A/WRG/LDG GR CTRL HDL-RET

Fault Code:

3230202EL

Associated CAS:

GEAR SYS FAIL
(Caution)

Reporting LRU: Landing Gear Electronic Control Unit (LG ECU)
System Description: 32-32-00
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 an abnormal condition with the Landing Gear Control Handle Retract Command discrete input coming from the Gear Handle.

Possible Causes:

  • Landing Gear Control Handle (S3)
  • 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 Control Panel AMM 32-31-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Landing-Gear Control Panel AMM 32-31-01-400-801 [ 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 ]
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 Retract Command wires between LGECU A52BP1 and Landing Gear Handle including the Gear Handle grounds.

    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. Perform continuity check of the Landing Gear Handle switches. Make sure there is continuity with the grounds when the Handle is selected Up and there is no continuity when the Handle is selected UP.

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

  4. Replace Landing gear control handle.

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

  5. Replace LGECU.
  6. Do close out.

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