What was found
ON INITIAL CLIMB OUT TRIM WORKED THEN AT 4000 ELEC CONTROL WHEEL TRIM STOPPED WORKING & TRIM KEPT TRIMMING NOSE UP. SHUTOFF BOTH STAB TRIM SWITCHES FOUND STAB TRIM CTL BREAKER OUT. R & R STAB TRIM MOTOR IAW AMM 27-41-71 PG BLK 401. OPERATIONS CHECK COMPLIED WITH. NO DEFECTS NOTED. ROTABLE PARTS CHANGE WAS INDICATED TT 1657695, SN OFF 00692 MOTOR, STAB, HO OFF 29-2741-9-0008 0692 ON 29-2741-9-00114329.