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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

07/04/19

Message Overview:

Fault Message:

RH OUTBD GS RET SNSR/WRG FAULT

Fault Code:

27656211SX

Associated CAS:

CONFIG SPOILERS
(Warning)

GND LIFT DUMP
(Caution)

GND LIFT DUMP
(Advisory)

NO TAKEOFF
(Advisory)

SPLRS STAB BIT
(Advisory)

Reporting LRU: Flight-Control Unit (FCU) 1
System Description: 27-60-00
Schematic Diagram: 27-60-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 27-60-01 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

There is a problem with the Right Outboard Proximity Switch Sensor.

Possible Causes:

  • Right Outboard Proximity Switch Sensor
  • Flight-Control Unit (FCU) 1 (A65)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter:

This fault may sometime be cleared by performing the flight control system reset procedure.

Getting access and inspecting the proximity switch sensor and connector for corrosion may clear the condition on the a/c.

The proximity sensor status can be found in CAIMS:

  1. SYSTEM DIAG.
  2. 27-00 FLIGHT CONTROLS.
  3. FLIGHT CONTROL UNIT #1.
  4. LRU TEST.
  5. DISPLAY SPOILER DATA.
  6. CONFIRM.
  7. Go to sheets 2/3.

Quick Links:

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 ]
Removal of the Spoiler Proximity Switch Sensors AMM 27-61-09-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Spoiler Proximity Switch Sensors AMM 27-61-09-400-801 [ 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. Disconnect right outboard PSS to check for corrosion on the pins and sockets. Make sure there is no corrosion on the a/c structure surrounding the PSS.

    1. If system checks are good, do close out.
    2. If fault remains, continue with next step.
      NOTE: Use contact cleaner and remove any corrosion found.

  3. Make sure the PSS is adjusted properly. The clearance between the sensor and the plate must be 0.045 ±0.01 in (1.14 ±0.25 mm).

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

  4. Perform wiring checks between right outboard PSS and FCU 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.

  5. Replace right outboard PSS.
  6. Do close out.

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