What was found
UPON GEAR DOWN, 3 GREEN, BRK FAIL YELLOW CAS ILLUMINATED. TROUBLESHOT FOR FAULT CODE 32421300 PER FIM 32-41-00. R & R BRAKE CONTROL MODULE IAW AMM 32-41-07. REPAIRED BRAKE CONTROL MODULE INDUCED ANTI-SKID CAS MESSAGE & FAILURE OF RT BRAKE TRANSDUCER IN CMC 32. REPAIRED BRAKE CONTROL MODULE BAD FROM STOCK. R & R BCU. IAW AMM 32-41-01. REPLACEMENT DID NOT FIX THE ISSUE SO THE ORIGINAL BCU INSTALLED BACK ON ACFT. R & R BRAKE CONTROL MODULE IAW AMM 32-41-07-400-801-A. LEAK CHECK GOOD. COMPLIED WITH BRAKE CONTROL UNIT OPS & FUNCTIONAL CHECKS OF BRAKE SYS IAW AMM 32-41-00-720-801-A. OPS CHECK GOOD.