N604SB

This entry covers airframe N604SB, a 2003-built Bombardier CL-600-2B16 Challenger 604 with serial number 5569. The aircraft is registered to KHOSLA VENTURES LLC (corporation, Menlo Park, CA, US) and operates with a US registration. The airframe’s factory build year and serial place it among early-2000s Challenger 604 examples; its market appraisal is approximately $7,000,000, reflecting age and configuration. Notable registry actions are limited in the provided data, with the primary documented event being its ownership by KHOSLA VENTURES LLC.

The airframe typically carries a 10–12-place executive layout, though it is certificated for arrangements up to approximately 22 seats depending on configuration, allowing conversion between corporate transport and higher-density passenger roles. The avionics fit on typical Challenger 604s of this vintage is the Rockwell Collins Pro Line 4, which supports long-range business missions and instrument approaches consistent with transcontinental and intercontinental U.S. operations. Given its owner’s Menlo Park, CA base, common mission profiles would include West Coast business runs and coast-to-coast flights within the aircraft’s 3,824 nm range and high-speed cruise performance. Maintenance and interior refurbishment cycles are typical considerations for a 2003 Challenger 604, particularly where high-utilization executive layouts or seat reconfiguration to the certificated maximum are employed.

The Bombardier CL-600-2B16 Challenger 604 occupies the large-cabin, long-range business jet niche with robust twin CF34 engines and transcontinental capability. It competes with contemporaries in the late-large-cabin category and finds demand in owner-operators and charter fleets seeking a balance of cabin size and range. Resale and maintenance considerations for a 2003 serial 5569 include avionics upgrades, interior refurbishment, and engine program status — factors that inform the listed valuation of $7,000,000.