What was found
HEADING INDICATOR RED "X" THEN CAME BACK IN A FEW MINUTES, ALL WHILE ON THE GROUND. SYNTHETIC VERSION ALSO LOST BECAUSE OF RED "X". TROUBLESHOOT AND COULD NOT DUPLICATE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
HEADING INDICATOR RED "X" THEN CAME BACK IN A FEW MINUTES, ALL WHILE ON THE GROUND. SYNTHETIC VERSION ALSO LOST BECAUSE OF RED "X". TROUBLESHOOT AND COULD NOT DUPLICATE.