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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

11/01/19

Message Overview:

Fault Message:

L FMU CH A WRG/FMU[MICRO SW] DIS

Fault Code:

7326318LBR

Associated CAS:

L FADEC FAIL
(Caution)

L FADEC FAULT
(Advisory)

Reporting LRU: Engine Electronic Controller (EEC) 1
System Description: 73-20-00
Schematic Diagram: None
Wiring Diagram: 71-50-01 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

The Position Discrete Microswitch channel A of the High Pressure Shut Off Valve (HPSOV) has a problem. The Fuel Metering Unit (FMU) HPSOV circuits are monitored by the Full-Authority Digital Engine-Controller (FADEC) during the engine start procedure.

Possible Causes:

  • Fuel Metering Unit (FMU) 1
  • Engine Electronic Controller (EEC) 1
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin:

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Opening of the Cowls AMM 71-10-00-010-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Closing of the Cowls AMM 71-10-00-410-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Connection of Electrical Connectors EMM 70-50-01-910-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Eng Electronic Controller (EEC) Mod 73-101559 EMM 73-21-01-000-801-B00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Eng Electronic Controller (EEC) Mod 73-101559 EMM 73-21-01-400-801-B001 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Fuel Metering Unit EMM 73-21-03-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Fuel Metering Unit EMM 73-21-03-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Open the cowls.
  2. Perform wiring checks between EEC 1 (P1044) and FMU 1 (P1049).

    1. If wiring defects are found, repair defective wiring as required and do close out.
    2. If no defects are found, continue with next step.

  3. Swap EEC 1 with EEC 2. Is the fault still present?

    1. If YES, continue with next step.
    2. If fault remains, continue with next step.

  4. Replace FMU 1.
  5. Do close out.

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