N504ST

This airframe, N504ST, is a Dassault Falcon 900B built in 1996 with manufacturer's serial number 162. It is registered in the United States and is owned by SDT AIR DELAWARE LLC, an LLC based in WILMINGTON, DE, US, which serves as the operator’s corporate base. The aircraft’s configuration and registry reflect a long-serving executive transport preserved in a 12-place executive layout. Public records indicate current US registration and corporate ownership but do not list additional notable registry actions or publicized valuation details.

The cabin of this specific Falcon 900B is fitted in a 12-place executive layout, configured for corporate transport and executive missions. Avionics and specific interior amenity lists are not published for this airframe; therefore, detailed fitment must be confirmed from operator maintenance logs or supplemental type documentation. With a published range of 4,000 nm and cruise speed of 454 kts, typical mission profiles for the airframe include long-range, nonstop transcontinental and transoceanic executive travel from its Wilmington, Delaware base. The aircraft’s three-engine architecture and the use of TFE731-5BR-1C powerplants influence maintenance planning and parts support compared with twin-engine designs, factors that the operator must manage through scheduled maintenance programs.

The Dassault Falcon 900B, manufactured by Dassault Aviation, is represented by this 1996-built airframe (serial 162) which combines intercontinental range (4,000 nm), a high cruise speed (454 kts), and a service ceiling of 51,000 ft in a 12-seat executive configuration. As a tri-jet design powered by three Honeywell / AlliedSignal TFE731-5BR-1C engines, maintenance and operational considerations for this unit reflect both its age (built 1996) and the additional engine-related maintenance items relative to twin-engine types. Prospective operators or buyers evaluating N504ST would weigh its long-range capability and executive cabin against typical age-related inspection and component replacement intervals.