As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) BRAKE DISC BROKE AWAY AT ALL THREE MOUNTING HOLES CAUSING RT BRAKE TO FAIL IN THE TAXI MODE. AIRCRAFT VEERED OFF TAXIWAY AND STOPPED ON GRASS. NO OTHER DAMAGE TO AIRCRAFT. WHEEL BOLTS APPEARED TO HAVE BEEN SLIGHTLY LOOSE, SOME CHAFING EVIDENT. WHEEL INSPECTED, NEW DISC AND BOLTS INSTALLED.