As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PLANE CAME IN FOR ANNUAL. CUSTOMER REPORTED AILERON CONTROL STIFF. UPON MOVING YOKE TO CONFIRM STIFFNESS. RT AILERON ROD END AT AILERON BROKE. IT BROKE WHERE THREADED PORTION MEETS BEARING. REMOVED ROD END AND FOUND BEARING WAS FROZEN. ALL MOVEMENT WAS IN THE THREADS WHICH WEAKENED IT AND FINALLY BROKE. THE WAS NO EVIDENCE OF RUST OR ANYTHING. AIRPLANE IS KEPT OUTSIDE AND LACK OF LUBRICANT IS SUSPECTED. OTHER SEAMED OKAY BUT WAS REPLACED ANYWAY.