What was found
LEFT & RIGHT BRAKE FAULT MESSAGE DURING FLT. DECLARED AN EMERGENCY AND LANDED. FAULT FLASHED AND CLEARED, BRAKES WORKED ON GROUND. DURING FLIGHT PHASE THE BCM RESET THE VALUES OF BRAKE PEDAL POSITION AND BRAKE PRESSURE FOR OTBD AND INBD BRAKES GO TO ZERO, AFTER 1-4 SECONDS THE VALUE RETURN TO COMMANDED INDICATION AND BRAKES WORK PROPERLY, PERFORMED AN OPS CHECK OF THE MAIN BRAKE SYS IAW AMM 32-41-00. OPS CHECKED GOOD, NO FAULTS.