As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED HE COULD NOT TRIM ALERIONS. REMOVED COVER AND FOUND BOLT HOLDING LARGE, GEARED TRIM WHEEL WAS MISSING COTTER KEY AND NUT HAD BACKED OFF, ALLOWING LARGE GEAR TO SLIDE TO SIDE ABOUT 3/8 IN. HAD TO COME FROM FACTORY THIS WAY. TIGHTENED NUT AND PLACED COTTER KEY IN SLOT.