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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

06/29/24

Message Overview:

AUTO PRESS FAIL
(Caution)

DDG Reference: None
Pilot Action (QRH): ABNORM 2-7
System Description: 21-31-00
Schematic Diagram: 21-31-00  [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 21-31-07  [ Global Express ]  [ G5000 ]  [ Global XRS ]

Message Description:

The pressurization control does not operate correctly.

Possible Causes:

  • Air Data Computer (ADC) 1
  • Air Data Computer (ADC) 2
  • Cabin Pressure Controller (CPC) 1
  • Cabin Pressure Controller (CPC) 2
  • Data Acquisition Unit (DAU) 3
  • Data Acquisition Unit (DAU) 4
  • Interface Wiring between DAUs and CPCs
  • Interface Wiring between the Outflow Valves and the CPCs
  • Outflow Valve 1
  • Outflow Valve 2
  • Safety Valve 1
  • Safety Valve 2
  • Interface Wiring between ADCs and CPCs

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Removal of the Cabin Pressure Controllers AMM 21-31-01-000-801  [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Cabin Pressure Controllers AMM 21-31-01-000-801  [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair SPM 20-12-10  [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Select related CAIMS message below:

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