As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI CONTROL CK WAS NORMAL, AFTER T/O AILERONS WERE VERY HEAVY AND ABRUPT MOVEMENT CAUSED WHAT FELT LIKE MANUAL REVERSION. GROUND CHECKS AFTER LANDING SHOWS HEAVIER THAN NORMAL. FAST INPUT STILL SHOWS TENDENCY TO LOCK UP. REPLACED AILERON CENTERING SPRING BEARING. CHECKED CABLES AND SPRING CARTRIDGE AILERON FORCES WITHIN MM LIMITS.