As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS TRIMMED FOR NOSE HIGH ATTITUDE FOR SLOW FLIGHT TRAINING. PILOT ATTEMPTED TO TRIM NOSE DOWN, WHEN HE NOTICED LOOSE CABLE ACCUMULATING AROUND TRIM WHEEL AND NO REDUCTION OF FORWARD PRESSURE ON CONTROL WHEEL. AIRCRAFT LANDED WITHOUT INCIDENT. INVESTIGATION SHOWED FORWARD TRIM CABLE HAD BROKEN IN THE AREA OF THE ELECTRIC TRIM SERVO CAPSTAN. REASON FOR FAILURE IS UNKNOWN, POSSIBLY AGE RELATED. AIRCRAFT IS 24 YEARS OLD.