Corp. Micro Bird (Micro Bird) is recalling certain model year 2011 and 2012 Micro Bird G5 school buses manufactured from April 1, 2011, through June 26, 2012, equipped with ProLo roof escape hatches made by Specialty Manufacturing, Incorporated. Increased friction between the rear plate assemblies, p/no. 009327, and the nylon rear pop-up support, p/no. 008956, may result in an opening force of the ProLo roof hatches that exceeds Federal standard requirements. Thus, these hatches fail to conform to the requirements of Federal Motor Vehicle Safety Standard No. 217, “Bus Emergency Exits and Window Retention and Release.”