N12JS 2017 Learjet 45

Overview

This airframe, registered as N12JS, is a Learjet 45 built in 2017 with serial number 561. It is owned by JS Aircraft Leasing III LLC, a corporation based in Aventura, FL, US, which serves as the operator/home base for the aircraft. No separate registry actions or transfers are published for this airframe beyond the recorded corporate ownership and U.S. registration.

Operations & Cabin

The cabin is advertised as a 9-passenger executive layout with belted lavatory, complemented by a forward galley equipped with microwave and a hot liquid container, offering a typical short-to-medium international business mission comfort level. Avionics for this specific airframe include a Garmin G5000 (Garmin 5000 Phase 3) suite with dual GIA-63W avionics units, GWX-70 weather radar and GTS-8000 TCAS II, which together support advanced situational awareness and precision flight operations. Typical operational use for this configuration would emphasize high-speed executive transport within the aircraft’s 2,040 nm range and high-altitude capability to 51,000 ft, flown from its corporate base in Aventura, FL, US. Maintenance considerations for this unit center on twin Honeywell TFE731-40BR1B engines and the integrated Garmin G5000 avionics common to late-model Learjet 45s.

Model & Market Context

As a late-production Learjet 45 with a 2017 build year and modern avionics, this airframe occupies a performance niche defined by high cruise speed (447 kts), transcontinental-ish range (2,040 nm), and a high service ceiling (51,000 ft), making it suitable for executive point-to-point missions. The twin Honeywell TFE731-40BR1B engines deliver consistent thrust (3,850 lbf each) supporting fast climb and cruise profiles.