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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

09/05/19

Message Overview:

Fault Message:

IRS 3 NOT INITIALIZED

Fault Code:

3440021IR

Associated CAS:

IRS 3 NO ALIGN
(Advisory)

Reporting LRU: Inertial Reference Unit (IRU) 3
System Description: 34-45-00
Schematic Diagram: 34-45-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 34-45-03 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

Inertial Reference Unit (IRU) cannot complete the ALN mode and therefore cannot go into the usual NAV mode.

Possible Causes:

  • Inertial Reference Unit (IRU) 3 (A34)

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Initialization of the Inertial Reference System (IRS) AMM 34-45-00-840-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Alignment Check of the Inertial Reference Units (IRU) AMM 34-45-01-820-802 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Perform the alignment check of IRU 3.
  2. Do close out.

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