As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD - FLT 4139 - CREW REPORTED PITCH TRIM ON CAPTAINS AND FIRST OFFICERS YOKE TO BE INOPERATIVE AFTER TAKEOFF. MAINTENANCE REMOVED AND REPLACED THE HORIZONTAL STABILIZER CONTROL UNT IAW EMB MM. OPS CHECK WAS GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. (M)