N400AJ

This entry covers airframe N400AJ, a Gulfstream G-IV (G-IV) built in 1990 with manufacturer serial number 1129. The aircraft is recorded in the U.S. registry and is owned by MILBERG FALCON EXPRESS LLC, a corporation based in Knoxville, TN, US, a change reflected in public registry entries that also list the type certification and seating configuration. The airframe’s declared market value on available records is $5,800,000, with registry notes indicating a certified seating layout and a higher-count registry listing that have influenced its operational role and valuation assessments.

The airframe is equipped internally in a typical executive layout intended for mid‑teens passenger accommodations, although registry entries list 22 seats and the type certificate records certification up to 19 passengers; this disparity is noted in maintenance and operational paperwork for this specific aircraft. Avionics fit for this hull is the original Collins Pro Line suite, a common factory installation for the type, and many operators of the model elect to perform avionics upgrades — a consideration reflected in the airframe’s maintenance planning. Operated from a U.S. base associated with its Knoxville, TN owner, the mission profile for this aircraft centers on long-range executive transport and charter operations consistent with its 4,200 nm capability and high cruise speed, requiring scheduled heavy checks for its twin Rolls‑Royce TAY turbofans and attention to interior refurbishment status for charter viability.

The Gulfstream G-IV (G-IV) occupies a long-range, large-cabin business-jet niche characterized by transcontinental and intercontinental capability at high cruise speeds and altitudes; this specific airframe’s performance figures — 459 kts cruise and 45,000 ft ceiling — align with that role. Competing models in the used market typically include other legacy large-cabin business jets, and buyer interest centers on airframes with well-documented maintenance histories and avionics modernization. For this hull, resale and maintenance considerations reflect its 1990 build year, the status of its Collins Pro Line avionics relative to contemporary upgrades, the Rolls‑Royce TAY engine maintenance cycle, and the registry/seat-count notes that can affect charter certification and valuation.