N521FX

The airframe bearing tail number N521FX is a 2005-built Bombardier BD-100-1A10 Challenger 300, serial 20057, manufactured by Bombardier Inc.. The airframe is recorded as owned by FLEXJET LLC, a limited liability company based in Cleveland, OH, US, which serves as the operator/home base for this Challenger 300. Registration is in the US, and the aircraft’s reported market valuation is $6,322,131, reflecting the airframe’s age and configuration at the time of valuation. No further registry actions are published in the supplied data.

This specific Challenger 300, N521FX, features a typical eight-passenger executive double-club cabin layout with a forward galley and full aft lavatory, supporting corporate and private transport missions that prioritize short- to mid-range transcontinental sectors within the aircraft’s 3,100 nm range. The flight deck is equipped with Rockwell Collins Pro Line 21 avionics, a common business-jet suite that supports advanced navigation, communications and situational awareness for the crew operating at cruise speeds around 459 kts and altitudes up to 45,000 ft. Operated from Cleveland, OH, the fleet operator’s maintenance and logistics footprint will drive routine inspections and engine support cycles for the two Honeywell HTF7000 series powerplants rated at 6,826 lbf each. Cabin amenities conform to the noted executive layout; no additional unique interior modifications are published.

The Bombardier BD-100-1A10 Challenger 300 occupies the light-medium super-midsize business jet niche, delivering transcontinental range near 3,100 nm with typical cruise performance of 459 kts and high-altitude capability to 45,000 ft. Competing models in this segment target similar mission profiles and cabin-size expectations, making maintenance history, avionics fit such as Pro Line 21, and operator pedigree—here FLEXJET LLC—key determinants of resale value and charter demand. Given the 2005 build year and the reported valuation of $6,322,131, prospective buyers and charter operators will weigh engine program status and interior condition heavily when assessing acquisition and future maintenance costs.