Collins is recalling certain model year 2012 Collins, Corbeil and Mid Bus brand SL, SH, DH, and DE school and multi-function school activity buses manufactured from March 12, 2012, through July 13, 2012. The metal hydraulic service brake line feeding the RH rear service brake assembly may interfere with a body mount assembly. The location of this interference is at the first body mount location directly ahead of the rear axle and on the inboard side of the passenger side frame rail.