PRODUCTS AFFECTED:
GDL 69 SXM (Garmin P/N 011-03177-00), GDL 69A SXM (Garmin P/N 011-03177-10), GDL 69H SXM (Garmin P/N 011-03177-20), and GDL 69AH SXM (Garmin P/N 011-03177-30) units with software version 5.01 that are not installed as part of a GX000 Integrated Flight Deck System.

PURPOSE:
This Service Bulletin incorporates new unit Software Version 5.10 for GDL 69/69A SXM units.
Software Version 5.10 incorporates the following upgrades (see SB 1573 for complete list):

Added support for CONUS composite NEXRAD for all subscriptions
Added time stamp for SIGMET and Cyclone packages, even when there are no SIGMETS or Cyclones present
Corrected a discrepancy which prevented the muting of audio
Corrected discrepancies between visual and textual METARS
Corrected a discrepancy that led to intermittent failure of the GDL 69 SXM when connected to the G1000

NOTE

GDL 69/69A Software Version 5.00 defaulted NEXRAD to a BASE product. Software Version 5.10 will default NEXRAD to a COMPOSITE (same as the legacy GDL 69) product.

DESCRIPTION:
Details are in the attached Aviation Service Document Notification.

COMPLIANCE:
Optional