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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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09/24/19

Message Overview:

Fault Message:

L IOP CH B WRG/FMU[IOP SOL]

Fault Code:

7325525LBR

Associated CAS:

L FADEC FAIL
(Caution)

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

Fault Description:

There is an short circuit to ground on the high side of the Independent Overspeed Protection (IOP) Solenoid Coil (channel B).

NOTE: This incident can cause a secondary failure of the Engine Electronic Controller (EEC). Do not supply electrical power to the EEC until you correct this condition.

Possible Causes:

  • Fuel Metering Unit (FMU)
  • Left Engine Electronic Controller (EEC)
  • 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-B00 [ 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. Perform a visual inspection of the interface wiring for damage between the EEC connector P1047 and the FMU connector P1050.

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

  2. Perform wiring checks between the EEC and the FMU.

    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. Swap EEC 1 with EEC 2.

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

  4. Replace FMU.
  5. Do close out.

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