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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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05/13/20

Message Overview:

FUEL COMPUTR FAULT
(Advisory)

DDG Reference: None
Pilot Action (QRH): Advisory 8-2
System Description: 28-41-00
Schematic Diagram: 28-41-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 28-41-01 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

When one of the following conditions occur:

  1. FMQGC CH A and CH B ARINC output bus to DAU failed (external - No CAIMS messages)
  2. FMQGC CH A and CH B internal failure
  3. FMQGC CH A and CH B electrical power failure (external.)

Possible Causes:

  • Data Acquisition Units (DAU) 1 and 2
  • Aeronautical Radio Incorporated (ARINC) output Associated wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Access to System Diagnostics AMM 45-45-00-960-804 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of Data Acquisition Units (DAU) AMM 31-42-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of Data Acquisition Units (DAU) AMM 31-42-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair SPM 20-12-10 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Check FMQGC output communication with the DAUs. Using CAIMS System Diagnostic pages for each FMQGC channel. Ensure data page information is not red.If data is red, the communication between DAU or PMAT and the FMQGC is invalid.
  2. Check FMQGC CH A and CH B ARINC outputs data communication validity and activity for DAU1 and DAU2.

    1. If FMQGC CH A communications is invalid, continue with next step.
    2. If FMQGC CH B communications is invalid, go to step 4.

  3. Swap DAU 1 and DAU 3.

    1. If fault indication is gone do close out.
    2. If fault remain, continue with next step.

  4. Swap DAU 2 and DAU 4.

    1. If fault indication is gone do close out.
    2. If fault remain, continue with next step.

  5. Perform wiring checks between FMQGC CH A and DAU1.

    1. If fault indication is gone do close out.
    2. If fault remain, continue with next step.

  6. Perform wiring checks between FMQGC CH B and DAU2.
  7. Do close out.

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