As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BRAKING ACTION UNEVEN, BRAKE PULLED TO RIGHT AND RIGHT BRAKE SEEMED TO GRAB WHEN APPLIED. BRAKE TEMPERATURE DIFFERENCE WAS APPROXIMATELY 160 BETWEEN LEFT AND RIGHT BRAKE. THE AIRCRAFT WAS GROUNDED. MAINTENANCE REPLACED NR 3 BRAKE AND NR 4 BRAKE AND PERFORMED SATISFACTORY OPERATIONAL CHECK IAW TSM 32-42-00.