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(2021) Service Bulletin 1866 Rev C: GDL 69/69(A)(H) SXM Upgrade to Software Version 5.21 for Non-GX000 Integrated Flight Deck Installations

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 5.10 or earlier that are not installed as part of a GX000 Integrated Flight Deck System.

COMPLIANCE:

Optional: This Service Bulletin may be incorporated at the owner’s discretion and is not warranty reimbursable.

PURPOSE:

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 issue that limited weather packages for certain displays
    • Fixes TFR issue described in Garmin Service Advisory 21110

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