As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A SEPT 16, 2024 FLIGHT IN RAINY CONDITIONS IN ALASKA, AT APPROXIMATELY 8:30PM, THE PIC OBSERVED THE ATTITUDE FLIGHT DISPLAY TUMBLE. THE PIC OBSERVED THIS HAPPEN IN DURING A FLIGHT IN SIMILAR CONDITIONS (RAIN) ON JULY 30, 2022, AT APPROXIMATELY 12:00 NOON. GARMIN HAS ISSUED SERVICE ALERT #2144 REV. B TO ADDRESS THIS ISSUE ON CUB CRAFTERS AIRCRAFT CERTIFICATED IN THE EXPERIMENTAL CATEGORY. CUB CRAFTERS ISSUED SERVICE ALERT SK-SA001 TO ADDRESS THIS ISSUE IN THEIR EXPERIMENTAL AIRCRAFT FLEET.