N3159G

The airframe bearing tail number N3159G is a Boeing-built freighter-conversion of the 737 family completed in 2007, factory serial number 35119. Registered in the US, the airframe is held by trustee ownership under UMB BANK NA TRUSTEE, a corporate owner based in Salt Lake City, UT, US; this custodial ownership is notable for aircraft placed into lease or collateral arrangements. The type is a passenger-to-freighter conversion variant designated Boeing 737-852(SF) and retains a two‑engine, narrow‑body configuration within the fixed-wing multi-engine category. Registry and operator details indicate the airframe functions primarily under asset-management oversight rather than direct airline operation, with maintenance and valuation records typically reflecting its converted freighter status.

As a Boeing 737-852(SF) conversion, the original passenger cabin layout configured for 189 seats has been adapted for freight operations; the airframe’s interior reflects reinforced floor sections and large forward and/or aft cargo doors typical of SF conversions. Avionics and flightdeck fit remain consistent with later-generation 737 NG standards, supporting typical airline sector cruise at about 450 kts and operations up to 41,000 ft when mission profiles require fuel-efficient cruise or extended range legs up to 2,000 nm. Under trustee ownership by UMB BANK NA TRUSTEE, the aircraft is likely managed for leaseback or collateral use, which can affect scheduling, maintenance oversight, and positioning movements rather than fixed scheduled passenger routes.

The Boeing 737-800 series derivative represented by the 737-852(SF) occupies a performance niche as a medium‑range, narrow‑body freighter conversion with robust commonality for operators transitioning from passenger to cargo variants. Competing options include other 737‑NG freighter conversions and smaller dedicated freighters; demand is driven by e‑commerce growth and regional cargo networks. For asset managers and prospective buyers, considerations center on the life‑limited components, CFM56-7B engine maintenance status, and the residual value implications of a conversion airframe registered in the US and held in trust.