N528L

This article describes a single specific airframe, the business jet registered as N528L, a 1984-built Gates Learjet 35A with manufacturer serial number 528. The airframe was delivered by Gates Learjet Corporation in 1984 and is recorded as owned by BUTLER NATIONAL INC, a corporate owner based in Olathe, Kansas, United States. The aircraft carries U.S. civil registration and its recorded valuation is $1,000,000, reflecting market and condition assumptions for a mid-1980s Learjet 35A maintained in typical corporate configuration. Registration and corporate ownership are the principal publicly noted administrative events for this airframe.

The airframe is configured for a ten-passenger corporate layout typical of Learjet 35A airframes, supporting short to medium international missions within its 1,990 nm range and high-speed cruise of 436 kts. Operated from an Olathe, Kansas corporate base under BUTLER NATIONAL INC, the aircraft would typically perform executive transport, point-to-point business missions, and regional charter-style trips where speed and access to smaller fields are priorities. Cabin and avionics specifics are not published for this particular airframe; however, maintenance considerations for this serial include routine inspection cycles for twin TFE731-2 turbofan engines and avionics upgrades common to 1980s Learjet operators to maintain airworthiness and resale value.

The Gates Learjet 35A family occupies a long-standing light-cabin, high-speed niche, prized for high cruise speed and a 45,000 ft service ceiling that enables favorable climb performance and efficient en route altitudes. Comparable aircraft in the used market include other light jets from the era offering similar seating and speed; resale values for 1984-built examples vary and the $1,000,000 valuation here reflects age, serial-specific condition, and corporate ownership. Maintenance and parts logistics for TFE731-powered Learjets remain well established, but prospective buyers should weigh avionics retrofit needs and engine shop visit schedules when assessing long-term ownership costs.