What was found
BRAKES PULSATING ON LANDING &TAXI. PER CRC RECOMMENDATION, PERFORMED A VISUAL INSP OF BRAKE SYS & NO FAULTS. BLED HYD SYS. CHECKED & FOUND HYD SYS PROPERLY SERVICED. PERFORMED INCOMING PART CHECK & FOUND THE BCU RECEIVED WAS THE WRONG P/N REQUIRED. CONTACTED MCC AND ADVISED OF FINDINGS. WORK PERFORMED IAW AMM 12-13-00. GAINED ACCESS & REMOVED BCU DUE TO INTERNAL FAILURE. INSTALLED A MODIFIED BCU P/N: DAP00100-11 S/N: 261860215. CLOSED ACCESS. PERFORMED MAIN BRAKE SYS FUNCTIONAL CHK. FUNCTIONAL CHKD SATISFACTORY. BLED & SERVICED HYDS AS REQUIRED. TAXIED ACFT OUT & PERFORMED MULTIPLE OPS CHKS OF MAIN BRAKE SYS. OPS CHKD SATISFACTORY, NO DISCREPANCIES NOTED. CLOSED ACFT. WORK PERFORMED IAW AMM 32-41-01.