As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TRANSIT CHECK, AN EICAS AND STATUS BRAKE MESSAGE WAS SHOWN. PERFORMED FIM DMC-B787-A-32-40-F1-U7A-421A-A PROCEDURE, CONFIRMING THE FAILURE THE MLG BRAKE ASSY NUMBER 8 WAS REPLACED IAW DMC-B787-32-45-07-00A-720A /-520A AND THE RIGHT MAIN LANDING GEAR JUNCTION BOX WAS REPLACED IAW AMM DMC-B787-A-32-11-30-00A-520A AND AMM DMC-B787-A-32-11-30-00A-720A-A, TESTED CORRECT AND THE REPORT WAS CLOSED.