What was found
FLIGHT 7676, HOM-ANC. DISCREPANCY: WHILE BEING MARSHALLED FOR DEPARTURE, THE RIGHT BRAKE FAILED. AIRCRAFT WAS SHUTDOWN. AFTER POST-FLIGHT INSPECTION, IT WAS DISCOVERED THAT THE RIGHT BRAKE PAD HAD FALLEN OFF ON THE RAMP. CORRECTIVE ACTION: MAINTENANCE REPLACED THE BACK PLATE ASSY ON THE RMG. OPERATIONS AND TAXI CHECK GOOD.