N407YK

This airframe, registered as N407YK, is a converted freighter built in 1993 with manufacturer serial number 25844. The airframe is a Boeing 737-436(SF) originally manufactured by Boeing and is currently owned by AIRCRAFT 25844 LLC, a corporation based in Lake Mary, Florida, United States. The airplane has been reconfigured to main-deck freighter standard; conversion to a passenger-to-freighter (SF) layout with installation of a large cargo door is a defining modification in its service history. Valuation or detailed condition reporting for this specific airframe is not published.

The cabin of this particular airframe has been converted to a main-deck freighter configuration, featuring a principal cargo compartment accessible through an installed forward or midship cargo door consistent with the (SF) conversion. Avionics fit and specific equipment lists are not published for this registration, but operationally the airframe is configured for cargo missions rather than passenger transport. Typical mission profiles for this airframe include medium-range freight sectors within the stated range capability, operating from its owner’s U.S. registry and maintained under corporate control in Lake Mary, Florida. Maintenance considerations for this airframe center on post-conversion structural inspections, cargo door certification, and continued airworthiness oversight under U.S. registry requirements.

The Boeing 737-400SF conversion occupies a niche in the narrow-body freighter market, offering operators a balance of main-deck volume and economical twin-engine operation for regional to transcontinental routes within a roughly 2,000–2,100 nm radius. Competing models include other converted 737 Classics and smaller narrow-body freighters from competing OEMs; demand is driven by e-commerce and express cargo operators seeking aircraft with main-deck capability. For this specific serial, buyers and lessors will weigh the airframe’s conversion status, remaining structural life since the 1993 build date, and CFM56-3 fleet maintenance considerations when assessing resale or continued operational use.