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(2008) Service Advisory 0837 Rev A: G600 NAV/ILS Glideslope Display and GPS signal
AFFECTED PRODUCTS
All G600 units are affected
DESCRIPTION
In GDU 620 version 2.01 software, ILS glideslope information will only be displayed if the GDU 620 has valid GPS position information. On the PFD, glideslope information is displayed immediately to the left of the VSI indicator, as shown below. The display of localizer information is not affected.
RESOLUTION
A future software version will address this issue where the GDU 620 will not require valid GPS position in order to display ILS glideslope information.