As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING NOSE WHEEL TIRE CHANGE THE INNER BORE OF THE NOSE AXLE WAS FOUND TO BE CORRODED. PART HAD TO BE ORDERED TRIP WAS CANCELLED. REMOVED CORRODED AXLE (PN 2342117002) SN R274 AND INSTALLED NEW AXLE IAW MFG MM. AIRCRAFT WAS RETURNED TO SERVICE.