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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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For AOG assistance contact:

CRC Montreal (YUL)
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06/30/21

Message Overview:

Message Name:

DIGITAL CLOCK LOCAL TIME DISPLAYING ERRONEOUS VALUES

Message Code: 312OBS001
Effectivity: All
System: Clock System
System Description: 31-21-00
Schematic Diagram: 31-21-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 31-21-01 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Message Description:

When the Digital Clock is operating in Global Positioning System (GPS) synchronized mode, the Local Time (LT) mode, when selected, displays erroneous time values.

Possible Causes:

  • Pilot Digital Clock (M5)
  • Copilot Digital Clock (M6)

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter:

Cobham SIL:

Quick Links:

Operational Test of the Clocks AMM 31-21-01-710-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Refer to Forum Newsletter 2017-01-24 Vol 14 - Issue 2 - Cobham/Air Precision Digital Clock Local Time (LT) Software Anomaly for details on this condition.
  2. Do close out.

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