As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TRIM FAIL LIGHT ILLUMINATES ON MAP WITH 3 CHIME MASTER WARNING WHILE USING THE MANUAL TRIM WHEEL DURING FLIGHT. INSPECTED TRIM ACTUATORS AND CABLES. FOUND WELL GREASED AND NO SIGNS OF MOISTURE. ACTUATED SYSTEM SEVERAL TIMES. GROUND OPS CHECKS GOOD.