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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

07/09/19

Message Overview:

Fault Message:

PITCH FEEL ACTR #1/WIRING FAULT

Fault Code:

27661151SX

Associated CAS:

PITCH FEEL FAULT
(Advisory)

SPLRS STAB BIT
(Advisory)

Reporting LRU: Pitch Feel Actuator (PFA) 1
System Description: 27-33-00
Schematic Diagram: 27-33-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 27-33-01 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

There is a problem with the Pitch Feel Actuator (PFA) 1. The Actuator is inoperative.

Possible Causes:

  • Pitch Feel Actuator (PFA) 1 (A77)
  • Flight Control Unit (FCU) 1 (A65)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

This fault may sometime be cleared by performing the flight control system reset procedure. If the message comes back more then once within 10 flight legs, troubleshooting is required.

NOTE: If FCU's are swapped/ replaced, ensure proper system tests are carried out to clear latched faults retained in the FCU prior to swap.

The pitch feels actuator information can be found in the CAIMS system diagnostic:

  1. SYSTEM DIAG.
  2. 27-00 FLIGHT CONTROLS.
  3. FLIGHT CONTROL UNIT #1.
  4. LRU TEST.
  5. DISPLAY PITCH FEEL DATA.
  6. CONFIRM.

    1. SYSTEM DIAG.
    2. 27-00 FLIGHT CONTROLS.
    3. FLIGHT CONTROL UNIT #1.
    4. LRU TEST.
    5. PITCH FEEL ACTR PLT/CPLT POSITIONING.

The Pitch feel Actuator can also be simulated on CAIMS in case the fault cleared.

Quick Links:

Removal of the Pitch Feel Actuators AMM 27-33-05-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Pitch Feel Actuators AMM 27-33-05-400-801 [ 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 ]
Access to System Diagnostics AMM 45-45-00-970-804 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Swap FCU 1 with FCU 2.

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

  2. Perform wiring checks between FCU 1 and Pitch Feel Actuator 1.

    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. Replace Pitch Feel Actuator 1.
  4. Do close out.

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