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(WARNING)
RED MESSAGE (CAUTION)
AMBER MESSAGE (ADVISORY)
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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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06/22/21

Message Overview:

Message Name:

PILOT OR COPILOT RADIO HEADSET JACK INOP

Message Code: 235OBS006
Effectivity: All
System: Audio Integrating System
System Description: 23-51-00
Schematic Diagram: 23-51-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 23-51-58 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Message Description:

One of the two Radio Headsets/Headset Jacks-Panels does not operate correctly.

Possible Causes:

  • Radio Headset
  • Pilot Headset Jacks Panel (AP44)
  • Copilot Headset Jacks Panel (AP45)
  • Audio Panel 1 (A8)
  • Audio Panel 2 (A9)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin:

  • AW700-23-0499 - Use of Commercially Available Aviation Headsets

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Removal of the Audio Panels AMM 23-51-05-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Audio Panels AMM 23-51-05-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Pilot/Copilot Headsets
and Jacks Panels		 AMM 23-51-29-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Pilot/Copilot Headsets
and Jacks Panels		 AMM 23-51-29-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Operational Test of the Pilot/Copilot Headsets
and Jacks
Panels		 AMM 23-51-29-710-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Perform the Operational Test of the Headset Jacks Panel to make sure that the Audio Panel is configured correctly. Refer to AMM 23-51-29-710-801.

    1. If the system checks are good, do close out.
    2. If fault remains, continue with next step.

  2. Swap the headset to perform the test.

    1. If the system checks are good, replace the defective headset and do close out.
    2. If fault remains, continue with next step.

  3. Depending on which side is affected, disconnect the Pilot Headset Jack Panel connector (AP44P1) and Audio Panel 1 connectors (A8P1/P2) or Copilot Headset Jack Panel connector (AP45P1) and Audio Panel 2 connectors (A9P1/P2). Perform a continuity check as follows:
    Pilot side:

    From To Result
    AP44P1-9 Ground
    AP44P1-10 Ground
    AP44P1-13 Ground
    AP44P1-9 AP44P1-10

    Copilot side:

    From To Result
    AP45P1-9 Ground
    AP45P1-10 Ground
    AP45P1-13 Ground
    AP45P1-9 AP44P1-10

    1. If there is continuity, repair defective wiring as required and do close out.
    2. If there is no continuity, continue with next step.

  4. Perform a continuity check as follows:
    Pilot side:

    From To Result
    AP44P1-9 A8P1-k
    AP44P1-10 A8P1-t
    AP44P1-13 A8P2-Y

    Copilot side:

    From To Result
    AP45P1-9 A9P1-k
    AP45P1-10 A9P1-t
    AP45P1-13 A9P2-Y

    1. If there is no continuity, repair defective wiring as required and do close out.
    2. If there is continuity, continue with next step.

  5. Swap the Pilot or Copilot Headset Jack panel.

    1. If the system checks are good, replace defective headset jack panel and do close out.
    2. If fault remains, continue with next step.

  6. Replace the defective Audio Control Panel.
  7. Do close out.

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