As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE TAKEOFF ROLL THE PILOT NOTICED A VERY MODERATE SHIMMY OF THE ACFT NOSE WHEEL AND ELECTED TO ABORT THE TAKEOFF AND RETURN TO THE RAMP. UPON A VISUAL INSPECTION OF THE NOSE WHEEL STEERING SYS 2 OUT OF THE 3 BOLTS ATTACHING THE STEERING GEAR, PN 6642613-1 TO THE UPPER BARREL ASSY WERE FOUND TO BE SHEARED.