N555EB

This airframe, registration N555EB, is a 1999-built Bombardier CL-600-2B16 Challenger 604 with serial number 5406. It is recorded as owned in co-ownership by Youngquist Brothers Jet 2 LLC based in Fort Myers, Florida, United States, a structure that indicates shared operational control and maintenance responsibilities. The aircraft is equipped and marketed in a current condition reflected by an estimated value of $8,000,000, and a listing noted an avionics upgrade as underway. No additional public registry actions beyond the current U.S. registration were provided.

The cabin of this individual Challenger 604 is described as a typical executive layout accommodating 9–12 persons, while the FAA-certified capacity for the airframe is 22 seats; owner/operator configurations may vary and the listed unit reflects that flexibility. The airframe is fitted with Pro Line Fusion avionics, with a reported upgrade underway in the listing, a modernization that affects mission avionics capability and situational awareness. Based at Fort Myers, FL under the co-ownership entity, typical mission profiles for this platform include transcontinental and medium-long range executive transport within the aircraft’s 3,756 nm capability and cruise at 459 kts. Maintenance and operational considerations for this specific airframe follow Challenger 604 norms, with engine type, avionics modernization status, and co-ownership arrangements being principal factors in scheduling and cost sharing.

The Bombardier CL-600-2B16 Challenger 604 family occupies the large-cabin, long-range business jet niche, offering transcontinental capability and a high operational ceiling of 41,000 ft. Competing models target similar missions and cabin expectations; resale and charter demand for a 1999 airframe depends on maintenance history, avionics standardization—here improved by Pro Line Fusion—and configuration flexibility, as reflected by the 9–12 executive layout versus the FAA-certified 22-seat capacity. For buyers and operators, considerations include engine type (GE CF34-3B), lifecycle maintenance intervals, and the impact of ongoing avionics upgrades on valuation and marketability.