N707KS

The airframe bearing tail number N707KS is a 2004-built Bombardier CL-600-2B16 Challenger 604 (manufacturer: Bombardier Inc.) with serial number 5581. It is recorded as registered in the United States and is registered to HR TOP GUN LLC in Petaluma, CA, which serves as the operator/home base for this specific aircraft. The airframe’s mid-2000s build year (2004) places it into the mature Challenger 604 fleet and its current estimated market value is reported at $6,100,000, reflecting age, configuration and typical maintenance status for the type. Registry entries and operator records indicate owner-based operation under an LLC structure in Petaluma rather than a corporate flight department or commercial operator.

The cabin of this airframe is fitted in a typical executive 10–12-place layout with a forward galley, club seating and an aft lavatory, while certification allows layouts up to the high teens/low twenties depending on configuration. Avionics are listed as Collins Pro Line 4, a common fit for the model though operator-specific upgrades are possible and may be present on this individual aircraft. With a range of 4,119 nm and cruise of 459 kts, the aircraft is suited to transcontinental corporate missions, private transport and on-demand charter operations from its Petaluma base. Maintenance considerations for this specific aircraft will reflect its 2004 manufacture year and the twin GE CF34-3B engines, with typical mid-life component and cycle inspections affecting availability.

As a member of the Challenger 600-series family built by Bombardier Inc., the Bombardier CL-600-2B16 Challenger 604 represented a mid-size, long-range executive jet configuration for its era, combining a spacious cabin with intercontinental capability (as shown by the 4,119 nm range and 41,000 ft ceiling). Buyer and charter demand for individual airframes like N707KS tends to reflect cabin flexibility (10–12 typical, certified higher) and retrofit potential of avionics such as Collins Pro Line 4; those factors alongside the airframe’s 2004 age drive resale and maintenance considerations embodied in the listed value of $6,100,000.