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Troubleshooting
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Select color for CAS message that you wish to troubleshoot

(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

06/22/21

Message Overview:

Message Name:

AC AND DC SYNOPTIC PAGES DATA MAGENTA WHEN PEM PRESSED

Message Code: 247OBS001
Effectivity: All
System: Electrical Power
System Description: 24-70-00
Schematic Diagram: None
Wiring Diagram: None

Message Description:

When the Pilot Event Marker (PEM) is pressed, the AC and DC Synoptic pages data becomes magenta.

Possible Causes:

  • Electrical Management System Control Display Unit (EMS CDU) 1 (A94)
  • Electrical Management System Control Display Unit (EMS CDU) 2 (A91)
  • AC Power Center (ACPC) (A54)
  • DC Power Center (DCPC) (A63)

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Access to Non-Volatile Memory (NVM)
Management		 AMM 45-45-00-970-822 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Use the PMAT to access the NVM Download Management tool.
  2. Select EMS CDU 1A. Select "Clear" in the NVM Function field. Press "OK".
  3. Repeat this step for the following units:

    • EMS CDU 1B
    • EMS CDU 2A
    • EMS CDU 2B
    • ACPC A
    • ACPC B
    • DCPC A
    • DCPC B

  4. Reset aircraft power. Is the fault still present?

    1. If NO, do close out.
    2. If YES, continue with next step.

  5. Perform the ACPC cards isolation troubleshooting procedure.
  6. Do close out.

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