N406CK

The airframe bearing registration N406CK is a Boeing-built airliner completed in 1997 with manufacturer serial number 28752. It is a member of the Boeing 737-400 series and is registered in the US; ownership is held by the corporation KALITTA CHARTERS II LLC based in Ypsilanti, MI, US. The airframe was originally delivered in a 190-seat passenger layout and was subsequently converted to a single-aisle freighter (SF) configuration under its current corporate ownership. Notable registry actions include the documented change from passenger status to a converted freighter, reflecting its transition into the cargo charter market.

This specific Boeing 737-400 began life in a conventional 190-seat passenger configuration but now operates as a converted freighter (SF), with the cabin reworked to accept cargo pallets and containers rather than passenger furnishings. Avionics fit is consistent with the 737 Classic line and operator configuration choices, supporting typical short- to medium-haul charter and freight sectors. Under KALITTA CHARTERS II LLC the airframe is employed on domestic and regional cargo runs consistent with a 2,060 nm range and cruise speed of 473 knots. Maintenance considerations for this airframe include life-cycle management of the CFM56-3C1 engines and structural inspection regimes associated with passenger-to-freighter conversions.

The Boeing 737-400 occupies a performance niche as a medium-range, single-aisle workhorse among late-1990s narrowbodies, offering payload flexibility once converted to freighter status. Competing models at the time and in secondary markets include earlier 737 Classics and regional freighter conversions of comparable capacity; demand is driven by charter and express cargo operators seeking proven airframes. Resale and maintenance considerations for this serial (28752) and year (1997) focus on remaining structural life, engine shop visit schedules for the CFM56-3C1 engines, and market appetite for converted 737 Classics in cargo operations.