GDL 84/88 units installed under the GDL 84/88 Part 23 AML STC SA02119SE are affected.
STC SA02119SE MDL Revision 11
STC SA02119SE MDL Revision 11 includes GDL 84/88 software version 3.34.
Software version 3.34 contains the following changes from version 3.33:
- METARs with missing cloud data will show on the interfaced display as grey flags instead of cyan to properly identify the missing information
- Improved Air/Ground determination for all aircraft with a G500/G600 system, GTN 6XX/7XX, or GNS 4XXW/5XXW