As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WOULD NOT ROTATE AT V1, PULLED HARD TWICE AND THE NOSE WOULD NOT COME OFF THE GROUND. AIRSPEED AT REJECT WAS 105 KNOTS. FLIGHT CONTROL CHECK BEFORE AND AFTER EVENT WAS GOOD. CAUSE OF CONDITION UNKNOWN AT THIS TIME. AIRCRAFT IS IN MAINTENANCE.