As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HPN - FLIGHT 4053 - CREW REPORTED THAT DURING BEFORE TAKEOFF CHECKS THE TAKEOFF CONFIGURATION WARNING SOUNDED FOR 'TRIM'. AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED THE AIRCRAFT THEN REMOVED AND REPLACED THE HORIZONTAL STABILIZER CONTROL UNIT IAW EMB-145 MM 27-40-01. OPERATIONAL CHECKS WERE SATISFACTORY, AIRCRAFT RELEASED FOR SERVICE. (M)