As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) FLIGHT CREW REPORT OF WHAT FEELS LIKE NOSE GEAR SHIMMY, NLG ASSY INSPECTED WITH NO FAULT FOUND. LT & RT MLG ASS`Y INSPECTED AND FOUND LH TIRE OUT OF BALANCED AND OUT OF ROUND. TIRE REPLACED WITH NEW AND A/C RETURNED INTO SERVICE. AMO DOING THE WORK NOTED THAT IN ITS 40 YEARS EXPERIENCE, THEY HAD NEVER SEEN A TIRE TO BE OUT OF ROUND AS MUCH AS THIS ONE, APPROX.75".