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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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04/14/22

Message Overview:

Message Name:

FADEC [DOOR CLOSE RELAY DRVR SHORT]

Message Code:

4960312APU

Associated CAS:

None

Reporting LRU: Full-Authority Digital Engine-Controller (FADEC)
System Description: 49-50-00
Schematic Diagram: 49-61-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 49-12-01 [ Global Express ]  [ G5000 ]  [ Global XRS ]
49-61-01 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Message Description:

Continuous power to the Auxiliary Power Unit (APU) Door Linear Actuator Open-Relay from the Full Authority Digital Engine Controller (FADEC), indicating an internal driver short circuit.

Possible Causes:

  • Auxiliary Power Unit (APU) Full Authority Digital Engine Controller (FADEC) (A108)

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

APU door open command continuously engergized. APU door opened and fails to close.

Quick Links:

Access to Active Faults AMM 45-45-00-970-802 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Access to Stored Faults AMM 45-45-00-970-803 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Full-Authority Digital Engine-Controller (FADEC) AMM 49-61-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Full-Authority Digital Engine-Controller (FADEC) AMM 49-61-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Speed Sensor AMM 49-61-17-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Stowage of Electrical Wiring - Maintenance Practices - ALL SPM 20-12-05-02 [ 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 the APU FADEC and verify condition of connector A108BP1, as well as the APU FADEC mounting tray connectors for damage or contamination.

    1. If damage/contamination is found, repair/rectify as required and do close out.
    2. If damage not found, continue with next step.

  2. Replace  the APU FADEC.
  3. Do close out.
    off

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