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Aviation Alerts and Advisories

Service Advisory 1612 Rev F: 2020 IGRF (International Geomagnetic Reference Field) Magnetic Field Model


Added step to stop power to GIA #2 and operating system specific instructions


All Garmin G1000 Integrated Flight Decks (G900X, G950, G1000(H), G1000 NXi, Cirrus PerspectiveTM, Embraer ProdigyTM) with a Garmin AHRS and GDU software versions 6.00 and greater are affected.

All Garmin G2000, G3000, G5000(H), and Embraer Prodigy® Touch systems with a Garmin AHRS are also affected.

G1000, G900X, G950, Cirrus Perspective, and Embraer Prodigy systems with GDU software versions 5.02 and previous are covered by a separate service bulletin. Contact your local dealer.


The 2020 IGRF Magnetic Field Model is now available. Refer to the RESOLUTION section (in the Advisory linked below) for instructions on how to update the IGRF Magnetic Field Model. Completion must be accomplished before December 31, 2021.

Service Advisory 1612 Rev F