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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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07/25/19

Message Overview:

Fault Message:

FCU_1A INVALID

Fault Code:

3141083DAU

Associated CAS:

None

Reporting LRU: Data Acquisition Unit (DAU) 1
System Description: 31-40-00
Schematic Diagram: 27-60-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
31-42-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 27-60-01 [ Global Express ]  [ G5000 ]  [ Global XRS ]
31-42-01 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

The Data Acquisition System reports that the Line Replaceable Unit (LRU) label 270 is transmitted from the Flight-Control Unit (FCU) 1 Channel A with incorrect Source Destination Identifier (SDI) or invalid Sign Status Matrix (SSM).

Possible Causes:

  • Flight Control Unit (FCU) 1 (A65)
  • Data Acquisition Unit (DAU) 1 (A17)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Electrical/Electronic Safety Precautions AMM 24-00-00-910-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Flight-Control Units AMM 27-61-05-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Flight-Control Units AMM 27-61-05-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Data Acquisition Units (DAU) AMM 31-42-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Data Acquisition Units (DAU) AMM 31-42-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Access to Active Faults AMM 45-45-00-970-802 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Safety Precautions - Maintenance Practices - ALL SPM 20-00-01-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Remove the DAU 1 to get access to the connector A17CP1 and the FCU 1 to get access to the connector A65AP1. Perform a continuity check as follows:

    From To Result
    A17CP1-D4 A65AP1-1G
    A17CP1-E4 A65AP1-1F

    1. If there is no continuity, repair or replace defective wiring as required and do close out.
    2. If there is continuity, continue with the next step.

  2. Perform a continuity check as follows:

    From To Result
    A17CP1-D4 Ground
    A17CP1-E4 Ground

    1. If there is continuity, repair or replace defective wiring as required and do close out.
    2. If there is no continuity, continue with next step.

  3. Swap DAU 1 with DAU 3.

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

  4. Replace the FCU 1.
  5. Do close out.

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