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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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Quick Links

08/08/19

Message Overview:

Fault Message:

L MAIN-GEAR DOWNLOCK SENSOR A/WRG

Fault Code:

3230290EL

Associated CAS:

GEAR DISAGREE
(Caution)

GEAR SYS FAIL
(Caution)

GEAR SYS FAULT
(Advisory)

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:

Left Main Gear Downlock Sensor A has been detected failed by the Landing Gear Electronic Control Unit (LGECU).

Possible Causes:

  • Left Main Gear Downlock A Proximity Sensor (MT32)
  • Landing Gear Electronic Control Unit (LG ECU) (A52)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Check proximity sensor first. In CAIMS, LRU TEST, LGECU CH B LDG GR DOWNLOCK SENSOR STATUS page displays the input from the MLG DOOR DOWNLOCK SENSOR STATE which may be helpful in troubleshooting this message.

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 ]
Operational Test of the Landing-Gear Electronic
Control-Unit (LG ECU)		 AMM 32-31-09-710-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Main-Gear Downlock Proximity-Sensors AMM 32-61-01-000-807 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Main-Gear Downlock Proximity-Sensors AMM 32-61-01-400-807 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Re-seat LGECU.

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

  2. Perform wiring checks between LGECU and Left Main Gear Downlock sensor A (MT32).

    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. Replace Left Main Gear Downlock proximity sensor A.

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

  4. Replace LGECU.
  5. Do close out.

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