N604RM

This entry covers airframe N604RM, a Bombardier-built Challenger 604 registered in the United States and constructed in 2000 with serial number 5441. The aircraft is owned by FIREPROOF AVIATION LLC, an LLC based in Southfield, MI, US, which serves as the principal operator/home base for this airframe. The airframe has undergone standard registry actions consistent with U.S. registration and is valued at $5,500,000 in current market terms, reflecting its build year and configuration. Maintenance and equipment choices reflect its role as a corporate/charter asset rather than a specialized mission platform.

The cabin is completed in a typical 10–12 passenger executive layout with a maximum configurable capacity of 12 places, allowing flexible configurations between corporate transport and higher-density charter use. Avionics are fitted with the Rockwell Collins Pro Line 4, a common fit for this airframe and a platform that supports later upgrade paths to more modern Pro Line variants when owners elect avionics modernization. Typical missions for this airframe include medium- to long-range corporate hops consistent with its 3,756 nm range and transcontinental capability from its Southfield, MI operating base. Operational considerations for this specific aircraft include balancing interior refurbishment against avionics upgrades and ensuring CF34-3B engine support consistent with Bombardier-era maintenance programs.

The airframe belongs to the Bombardier CL-600-2B16 Challenger 604 family, a long-standing fixed-wing multi-engine business jet type offering transcontinental range and a high single-flight comfort level. In the market, the Challenger 604 competes with other large-cabin, long-range executive jets where buyers prioritize cabin size and range over the latest cockpit technologies. Resale and maintenance considerations for this particular 2000-built airframe hinge on its interior configuration, remaining airframe life, and the owner’s investment in avionics upgrades from the installed Rockwell Collins Pro Line 4 to later systems. Engine support for the GE CF34-3B pair remains a key lifecycle cost driver for prospective buyers and operators.