Conversion firm Aeronautical Engineers, Inc. (AEI) is celebrating its 600th aircraft conversion of Boeing 737-800 owned by GA Telesis (MSN 28235). The 600th freighter conversion was modified by Commercial Jet Inc, which is AEI’s longest-serving modification partner, at its Miami facility. AEI has been designing, developing, and modifying narrowbody freighter aircraft since 1958, providing freighter products ranging from the DC6 and CV440 to the 727-200SF, 737-400SF, and 737-800SF. “We are thrilled to reach this milestone and couldn’t have made it without the dedication of our employees, the responsiveness of our vendor partners, and the trust earned from our customers,” said Roy Sandri, AEI’s president in a release. “By consistently delivering robust and reliable freighter conversion products, AEI has grown to become the most widely recognized and respected independent conversion company in the industry.”