N604SG

This airframe, registered as N604SG, is a Canadair/Bombardier-built CL-600-2B16 Challenger 604 completed in 1997 with manufacturer serial number 5336. The jet is recorded as owned by GAF HOLDINGS INC of Visalia, CA, US, and is registered in the US; this represents the primary documented ownership and registration history for the airframe. Maintenance, operational control and any subsequent changes of operator are not published beyond the corporate ownership and US registry noted. The aircraft retains its Challenger-series identity and configuration as delivered by Canadair Ltd. (Bombardier Aerospace).

The cabin of this Challenger 604 is described with a typical executive layout: a 10-passenger executive fit in two cabin zones as the baseline arrangement, with the interior convertible to 9–12 seats depending on fit-out while the aircraft retains certification for a larger capacity of 22 seats in higher-density configurations. Avionics are fitted with Rockwell Collins Pro Line 4, supporting standard Challenger 604 navigation, communications and flight management systems for business and charter operations. With a long-range capability of 4,000 nm and a cruise speed near 459 kts, the airframe is commonly suited to transcontinental and intercontinental executive missions out of its documented home base region, while maintenance considerations follow typical Challenger 604 program items tied to the CF34 engine series and Pro Line 4 avionics support.

The CL-600-2B16 Challenger 604 occupies the medium-large cabin business jet niche, prized for transcontinental range and a comfortable cabin for executive missions. Competing models in the market position similarly include later Challenger variants and other high-capacity business jets offering long-range capability; buyer and charter demand often centers on cabin size, range and avionics maturity such as the installed Rockwell Collins Pro Line 4. Maintenance and resale considerations for this airframe hinge on CF34 series support, Part 145 and OEM maintenance history, interior condition and any updates to avionics or optional modifications, with age and serial-specific documentation (here, 5336, 1997) informing market comparables.