As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI OUT YOKE WOULD NOT MOVE DURING FLIGHT CONTROL CHECK (AILERON TRIM INOPERATIVE).AC RETURNED TO GATE (BTB) AND MTX GROUNDED ACFT. TROUBLESHOT AND FOUND AILERON FEEL AND CENTERING MECHANISM SPRINGS WEAK. REPLACED NAMED SPRINGS IAW CMM 27-11-23. OPS CHECK GOOD IAW AMM B767 27-11-00 . AND RETURENED AC TO SERVICE.