As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE NR 4 MAINWHEEL WAS IN FOR A TIRE CHANGE. AFTER THE WHEEL WAS STRIPPED DOWN AND CLEANED, A LARGE CRACK WAS FOUND IN THE INNER BEARING HOUSING, RUNNING APPROX. 4 INCHES VERTICALLY DOWN THE TUBEWELL SIDE OF THE WHEEL FROM THE BEARING HOUSING. SECOND CRACK SUBSEQUENTLY FOUND.