MIAMI, FL--(Marketwired - Jan 28, 2015) - Commercial Jet is proud to announce that it had the honor of modifying Aeronautical Engineers, Inc. (AEI) 400th freighter conversion.�The 11 pallet position B737-400SF (MSN 25105) was converted at Commercial Jet's Miami, Florida facility and delivered to TNT Airways S.A., in mid-December of 2014.�Commercial Jet provided all of the touch labor for the passenger-to-freighter conversion, performed heavy maintenance and painted the aircraft.