As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, THE PILOT REPORTED A RUNAWAY STABILIZER TRIM CONDITION. AN EMERGENCY WAS DECLARED AND RETURNED TO DEPARTURE, LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS GROUNDED. REPLACED THE STAB TRIM MOTOR IAW AMM 27-41-71. OPS CHECKED IAW AMM 22-11-81.