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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

06/28/19

Message Overview:

Fault Message:

DISCR OUTPUT XCHAN/ SFCU#1

Fault Code:

2751253STD

Associated CAS:

None

Reporting LRU: Slat/Flap Control Unit (SFCU)
System Description: 27-52-00
Schematic Diagram: 27-50-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 27-50-07 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

The cross channel discrete output of Slat/Flap Control Unit (SFCU) 1 is invalid.

Possible Causes:

  • Slat/Flap Control Unit (SFCU) 1 (A124)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Performing a SLAT FLAP RESET on the EMS CDU may clear this fault.

NOTE: Wait at least one minute after SFCU reset to allow self test to run.

Quick Links:

Removal of the Slat/Flap Control Unit (SFCU) AMM 27-51-05-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Slat/Flap Control Unit (SFCU) AMM 27-51-05-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Perform wiring checks of the discrete interface between SFCU 2 and SFCU 1 as follow:

    From To Result
    A124AP1-30 A95AP1-31
    A124AP1-44 A95AP1-45

    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.

  2. Replace SFCU 1.
  3. Do close out.

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