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 5.10 or earlier that are not installed as part of a GX000 Integrated Flight Deck System.
Optional: This Service Bulletin may be incorporated at the owner’s discretion and is not warranty reimbursable.
GDL 69 series software version 5.21 contains the following changes:
- Removes unsubscribed channels from program and channel lists when interfacing with older display versions
- Increases reliability for transmission of METARS and PIREPS
- Fixes bug that limited weather packages for certain displays