As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN AIRCRAFT LANDED, A POP WAS FELT AND THE RIGHT BRAKE LOST EFFECTIVENESS. IT WAS LATER FOUND THAT THE BRAKE DISC FLANGE THAT ATTACHES TO THE MAIN LANDING GEAR WHEEL HAD COMPLETELY SEPARATED FROM THE REST OF THE DISC. THE BRAKE DISC RAPCO PN: RA164-02201 HAD 34.4 HOURS SINCE NEW. BOTH BRAKE DISCS WERE REPLACED WITH NEW CLEVELAND PN: 164-02201 DISCS.