Bogie Covered Wagon with Air Brake Modified --- High axle load version of BCNA. In 2006 for operation up to CC+8+2t, suspension of BCNA modified by providing four additional springs. O-2, I-2. Differentiated from BCNA by a caption 'Fitted with additional springs for axle load 22.32 Tonnes' in centre of the wagon in Golden Yellow band provided. Fitted with modified CASNUB 22 NLB bogie with non-transition CBC & O-14 I-10 S-4 spring. Speed 75/80 for CC+6+2t and 65/80 CC+8+2t. Capacity - 56.73 Tonnes. Type - BCNAM1.