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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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11/29/19

Message Overview:

GND LIFT DUMP
(Advisory)

DDG Reference: 27-62-01
27-62-04
27-63-01
Pilot Action (QRH): ADVISORY 7-4
System Description: 27-60-00
Schematic Diagram: 27-60-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 27-60-10 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

One of the conditions that follow occur:

  • In phases of take off or landing: GLD is not armed for only one pair (GS or MFS)
  • Due to the loss of one ground condition (detected sensor failure), GLD is lost or degraded (deployment delayed) for only one pair (GS or MFS)
  • Only one pair of GS is failed in the retracted position, unless the associated hydraulic is low and no MFS pair is failed retracted. A pair of spoiler is considered failed as soon as either the left or right surface is failed.
  • One pair of GS is in uncommanded deployed status.

Possible Causes:

  • Flight Control Unit (FCU) 1 (A65)
  • Flight Control Unit (FCU) 2 (A66)
  • Brake Control Unit (BCU) (A71)
  • GND LIFT DUMP Switch (AP23)
  • Outboard GS Selector Valve (L41)
  • Inboard GS Selector Valve (L42)
  • Left Outboard GS Proximity Switch Sensor (MT121)
  • Right Outboard GS Proximity Switch Sensor (MT122)
  • Left Inboard GS Proximity Switch Sensor (MT123)
  • Right Inboard GS Proximity Switch Sensor (MT124)
  • MFS Proximity Switch Sensor (PSS)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter:

NOTE: To support a NFF technical investigation please fill out this Questionaire and send it to your FSR if you are replacing an Flight Control Unit (FCU).

NOTE: 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.

Quick Links:

Removal of FCU AMM 27-61-05-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of FCU AMM 27-61-05-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of Brake Control Unit AMM 32-43-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of Brake Control Unit AMM 32-43-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of GND LIFT DUMPING and AUTO BRAKE Control Panel AMM 32-43-45-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of GND LIFT DUMPING and AUTO BRAKE Control Panel AMM 32-43-45-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of Pushbutton/Toggle Switch AMM 20-11-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of Pushbutton/Toggle Switch AMM 20-11-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of Ground-Spoiler Selector Valves AMM 27-63-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of Ground-Spoiler Selector Valves AMM 27-63-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of Spoiler Proximity Switch Sensors AMM 27-61-09-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of Spoiler Proximity Switch Sensors AMM 27-61-09-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair SPM 20-12-10 [ Global Express ]  [G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Using the PMAT, access CAIMS to view active or stored faults. Select displayed message from menu below:

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