As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING REPLACEMENT OF THE LT OTBD WHEEL ASSY, THE TECH ENCOUNTERED DIFFICULTY INSTALLING THE NEW WHEEL ASSY BACK ON TO THE AXLE. AFTER CLOSER INSP IT WAS NOTED THE LT OTBD BRAKE ASSY INBD DISK HAD FRACTURED AT THE 11 O`CLOCK POSITION ALLOWING THE INBD DISK TO SLIP DOWN AND PREVENT THE WHEEL FROM BEING INSTALLED FULLY. BRAKE ASSY WAS REPLACED.