As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CONDITIONING OF NEW BRAKE PADS THE LEFT BRAKE FAILED RESULTING IN LOSS OF BRAKING AND LOSS OF STEERING CONTROL. UPON EXAMINATION THE LEFT BRAKE OUTBOARD BRAKE PAD LINING WAS MISSING FROM THE BACKING PLATE. PIECES OF THE LINING WERE FOUND IN THE BRAKE ASSEMBLY AND ON THE GROUND.