As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: ON CLIMB UNABLE TO TRIM STABILIZER WITH YOKE TRIM SWITCHES OR MANUALLY WITH TRIM WHEEL. PITCH TRIM WAS STUCK. FIGHT RETURNED TO DFW LANDING SAFELY. REMOVED AND REPLACED STAB TRIM MOTOR AND ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK PER AMM 27-41-71-400-801.