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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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01/28/21

Message Overview:

L ENGINE VIBRATION
(Caution)

DDG Reference: None
Pilot Action (QRH): NNC-15-3
System Description: 76-11-00
77-10-00
Schematic Diagram: 77-31-00
Wiring Diagram: 77-40-01

Message Description:

The amber 'L ENGINE VIBRATION' message indicates a higher than normal level of vibration has been sensed in the respective engine.

  • Engine fan balancing should be performed IAW the light engine maintenance manual.
  • The MDC also logs the fault message into the MDC fault history for display on the Fault History page.

Possible Causes:

  • None

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

None

Troubleshooting Recommendations:

  1. Interrogate the MDC as follows:

    1. On the cursor control panel, ensure the toggle switch is to the right and select Anti-Ice, ECS and Fuel buttons simultaneously. The MDC main menu should now be displayed on Display Unit #3.
    2. Using the joystick, select Current Faults (if the fault is active) or Aircraft History to research stored faults. From Aircraft History you can then select Fault Message History and locate the air condition fault logged.
    3. Select the MDC fault from the drop down below to provide additional information to assist in troubleshooting.

MCID codes can be entered also, these codes are embedded in the MDC system under each equation ID # and will be displayed either way.

45_current_faults

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