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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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04/26/21

Message Overview:

Message Name:

VERTICAL SPEED FLAG (Warning)

Identifier: 341OBS008
Effectivity: AIRCRAFT 20501 - 20999
System: Navigation
Associated CAS: None
System Description: 34-13-00
Schematic Diagram: None
Wiring Diagram: 34-13-05
34-13-09

Message Description:

The red 'VS' warning flag indicates the vertical speed is invalid.

  • A loss of vertical speed information from the on-side ADC, most likely caused by a power failure or data bus loss from the ADC.
  • Troubleshooting using the MDC current fault page may help isolate the system, verify that power is available and check the data bus information.

45_current_faults

Possible Causes:

  • Air Data Computer (ADC) (A1)
  • Primary Flight Display (PFD) (A29)
  • Multi-Function Flight Display (MFD) (A27)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

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Troubleshooting Recommendations:

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