; (3) a determination of lessons learned from the phaseout of stage 2 aircraft that might be applicable to a phaseout or reduction in the operations of covered stage 3 aircraft, including comparisons between the benefits, costs, and other impacts associated with the phaseout of stage 2 aircraft and the potential benefits, costs, and other impacts determined under paragraph (2); (4) a determination of the costs and logistical challenges associated with recertifying stage 3 aircraft capable of meeting stage 4 noise levels; and (5) a determination of stakeholder views on the feasibility and desirability of phasing out covered stage 3 aircraft, including the views of— (A) air carriers; (B) airports; (C) communities surrounding airports; (D) aircraft and avionics manufacturers; (E) operators of covered stage 3 aircraft other than air carriers