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Aviation Alerts and Advisories

Service Advisory 1905: GPS Rollover


All Garmin aviation products are affected.


On April 6, 2019 the week number broadcast by the GPS satellites will roll over. As a result of this event some GPS devices may recognize an incorrect date when powered on after April 6, 2019.

After extensive testing, Garmin has determined there are no known issues with Garmin aviation devices as a result of the April 6, 2019 rollover date.

Further testing is underway to check for future GPS time and date issues.


No action is necessary.

Service Advisory 1905