As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT ROTATION SPEED (100 KIAS) CONTROL COLUMN WAS TEMPORARILY STUCK UNTIL EXTREME BACK PRESSURE WAS APPLIED. CONTROL COLUMN THEN MOVED RAPIDLY AFT AND A/C JUMPED OFF RUNWAY. IN FLIGHT A/C ELEVATOR TRIM VERY SLOWLY MOVED TO NOSE UP, REQUIRING APPROX 1/2 UNIT CHANGE NOSE DOWN EVERY 1-2 MINUTES. FLIGHT CONTROLS DON'T SEEM TO BIND ON SUBSEQUENT GROUND CHECKS.