What was found
DURING FLIGHT BRK LT & RT FAULT MESSAGES ON EICAS. DISAPPEARED AFTER 15-20 SEC. MESSAGE REAPPEARED AFTER 20 MINS. FOLLOWING COMPLETION OF QRH. BRAKING ACTION WAS NORMAL UPON LANDING. RESET POWER AND PERFORMED OPERATIONAL CHECK OF THE MAIN BRAKE SYSTEM, NO FAULTS NOTED, OPC GOOD IAW AMM 34-41-00 AND PER SNL170-32-0025. DURING TAXI FOLLOWING MESSAGE APPEARED ADS 3 & 4 SOP COMP FAIL AND FLAP LO RATE. MESSAGES EXTINGUISHED DURING TAXI IN. PERFORMED OPERATIONAL CHECK OF ADC PER AMM 34-15-00 OPC GOOD AT THIS TIME.