G500 Systems Software Upgrade for GDU 620 Software Version 5.00, GRS 77 Software Version 3.00, GDC 74 Software Version 3.06, and GAD 43 Software Version
Mandatory: For installations affected by Service Advisory 1027. Any G500 installation in an aircraft that requires a maximum airspeed indication (“barber pole”) that will change based on altitude. (GDU 620 Software Version 3.02 does not provide a means to display a maximum airspeed indication that varies with altitude.)
Recommended: For all other installations.
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