As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF, SEVERE NOSE WHEEL SHIMMY BEGAN AT 35 KTS. AS FORWARD NOSE PRESSURE RELEASED, SHIMMY GOT WORSE AND ABORT INITIATED AT 50 KTS. AHRS 1 AND 2 FAILED AND FORWARD EMER LIGHT ILLUMINATED. FOUND BOTH LT & RT NOSE WHEEL/TIRE UNBALANCED & TIRE WORN. REMOVED & REPLACED BOTH L&R NOSE WHEEL/TIRE ASSY IAW 750 M.M. CHAPTER 32-41-01.