As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAXIOUT DURING FLT CONTROL CHECK, THE ELEVATORS PRODUCED A RATCHETING FEELING FROM FULL FWD TO FULL AFT. BOTH CAPT AND F/O'S CONTROL COLUMNS FELT THE RATCHETING. ALL HYD SYS NORMAL AND A-P ARE DISENGAGED. FOUND ELEVATOR TORQUE TUBE AND BELL CRANK PUSH PULL TUBE STIFF AT THE BALL JOINT. LUBED BALL JOINTS, TORQUE TUBE AND PUSH PULL TUBE. OPS ARE GOOD.