FTAI Aviation and AEI collaborate on Boeing 737-800 freighters FTAI Aviation will combine its engine maintenance capabilities with Aeronautical Engineers’ (AEI) freighter conversion operation with the aim of delivering Boeing 737-800 passenger to freighter (P2F) conversions at scale and at a lower cost. With almost 6,000 aircraft delivered to date, the Boeing 737-800 is the most widely produced na...