N664MM

This airframe, registered as N664MM, is a Cessna 650 Citation III built in 1984 with manufacturer serial number 650-0037. The airframe is registered in the United States and is recorded as owned by the Nashville-based corporation AQUARIUS AIRCRAFT LEASING LLC. Operationally it is configured and registered for an executive role, and registry records note its US registration and corporate ownership; valuation and condition details are not published. No publicly recorded changes in operator status beyond corporate registration were listed in the supplied data.

The airframe is registered with a 12-seat executive layout (registered capacity) consistent with corporate transport and charter missions emphasizing short- to medium-haul transcontinental ranges. Avionics installed on this airframe reflect a legacy Collins/Honeywell suite, with equipment examples that have appeared on the log such as Collins ADF 60, Honeywell KHF-950 HF, and Honeywell TCAS 2000, suitable for IFR and long-range corporate operations of its era. Typical missions for this Citation III configuration include high-speed, high-altitude point-to-point business travel and on-demand charter flights within its 2,348 nm range and with a service ceiling of 51,000 ft. As a corporate-leased asset based in Nashville, Tennessee, maintenance considerations center on age-related systems updates and legacy avionics support for continued regulatory compliance and TCAS/COM interoperability.

The Cessna 650 Citation III occupies the high-speed, transcontinental light-to-medium business jet niche among late-model 1960s–1980s designs, offering higher cruise speeds and altitudes than many earlier Citation family members. With twin Honeywell TFE731-3C engines producing 3,700 lbf each, the type competes historically with earlier Gulfstream and Dassault Falcon light-cabin jets and later turbofan light-business jets for cost-conscious corporate operators and regional charter fleets. Market considerations for this airframe include demand for well-maintained, supplemental-type-modified avionics, the economics of older turbine airframes, and the appeal to buyers needing a 12-seat executive layout with proven high-altitude cruise capability.