1641-Brake Fault Investigation. ~~~~~ 1641-Brake Fault Investigation. * ,N * 'From TIMS show 1641 FC-113 Propulsion Traction Load Failure Found 1641 BCU faulty. Replaced and function test ok. Found 3641 BCU com fault. Fault transferred after swap to 3642. Raised op20 for 3642 BCU changeout. Isolated 3642 STBS and BIC. Isolated 3641 STBS. DONE BY:FAIZAL/ZAIDI/IDRIS/KUMAR/AZLI 03.10.2023