"B" Track Aft I/B roller with new roller. P/N KRP233012FT. per CMP G550 275038 and Drawing 1159O354220 Rev C Recieved ok to install and installed R/H Flap Track "B" AFT O/B roller fitting. Bolts still require torque and fitting requires sealant per 1159CS54220 Rev G. Bolts require torque and fitting require