What was found
FLT#272, FLL-LGA. (AIRCRAFT DIVERTED TO JFK) 'BRAKES AUTO BRAKE BRAKES RELEASED FAULT ON THE AROUND WITH 1 ENG STARTED IN FLL RESET WITH MCC SAME FAULT ON DEPARTURE AFTER SAT CALL WITH MCC DIVERT TO JFK NORMAL LANDING WITH LOW BRAKES SELECTED; PERFORMED TSM 32-42-00-810-819-A CHECKED WIRING BETWEEN BCSU 10GG PINS AB/6J AND AB/6K AS WELL AS THE TACHOMETER WHEEL 2 21GG PINS A/A AND A/C. NO FAULTS WERE FOUND AT THIS TIME. REMOVED AND REPLACED TACHOMETER 21GG PER AMM 32-42-57. OPS CHECK GOOD AT THIS TIME.'