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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

07/10/19

Message Overview:

Fault Message:

HOR STAB POS XDCR #2/WRG FAULT

Fault Code:

27661272SX

Associated CAS:

CONFIG STAB TRIM
(Warning)

MACH TRIM FAIL
(Caution)

NO TAKEOFF
(Advisory)

PITCH FEEL FAULT
(Advisory)

SPLRS STAB BIT
(Advisory)

STAB CH1 FAIL
(Advisory)

Reporting LRU: Flight Control Unit (FCU)
System Description: 27-40-00
Schematic Diagram: 27-41-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 27-41-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]
27-41-03 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

Flight Control Unit (FCU) senses a problem with the Position Transducer 2 of the Pitch Trim Actuator Electrical Module or the interface wiring.

Possible Causes:

  • Pitch Trim Actuator (B44)
  • Flight-Control Unit (FCU) 1 (A65)
  • Flight-Control Unit (FCU) 2 (A66)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

The HST position XDCR #2 status can be found on CAIMS System Diagnostic:

  1. SYSTEM DIAG
  2. 27-00 FLIGHT CONTROLS
  3. FLIGHT CONTROL UNIT #2(1)
  4. LRU TEST
  5. DISPLAY HORIZ STAB DATA

Quick Links:

Removal of the Pitch Trim Actuator AMM 27-41-09-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Pitch Trim Actuator AMM 27-41-09-400-801 [ 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 ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Swap FCUs.

    1. If system checks are good, replace defective FCU. Reset FCUs latched faults and do close out.
    2. If fault remains, continue with next step.

  2. If the fault is reported by both FCUs, go to step 5.
  3. If the fault is reported by the FCU 1, perform wiring checks between FCU 1 and HST XDCR 2.

    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.

  4. If the fault is reported by the FCU 2, perform wiring checks between FCU 2 and HST XDCR 2.

    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.

  5. Replace pitch trim actuator.
  6. Do close out.

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