N747EF

This airframe, registered as N747EF, is a Boeing 747-8B5 built in 2015 with manufacturer's serial number 40906. The aircraft was originally delivered in a 467-seat three-class Intercontinental layout for Korean Air and is now owned by SIERRA NEVADA COMPANY LLC, an LLC/corporation based in Sparks, NV, US, with U.S. registration. The airframe is notable for undergoing removal of its passenger interior and is currently being reconfigured/stripped in preparation for conversion to a specialized mission role. Maintenance and condition highlights center on the transition from a commercial passenger fit to a bespoke mission configuration, reflecting a change in operational role rather than standard airline service.

The cabin was originally delivered as a 467-seat three-class Intercontinental layout (Korean Air) but is presently being reconfigured and stripped to support conversion to a specialized mission role; this implies removal of standard airline fittings and interior systems to accommodate mission systems or auxiliary equipment. Avionics are fitted with Rockwell Collins integrated avionics consistent with typical 747-8 configurations, providing modern flightdeck functionality for crew transitioning from airline operations to specialized missions. Typical missions for this particular airframe will shift from long-haul commercial passenger routes (supported by an 8,000 nm range and 495 kts cruise) to bespoke long-endurance or special-mission profiles based from the owner’s operations in Sparks, Nevada. Maintenance considerations specific to this conversion include modification of environmental control, power distribution, and structural interfaces to support non-passenger systems.

The Boeing 747-8 family occupies the long-range, large-capacity niche among fixed-wing multi-engine widebodies, offering high payload/range capability compared with earlier 747 variants and competing long-haul widebodies. Competing models for operators seeking large cabin volume or specialized conversions include modified 747 Classics or widebody freighters converted from passenger frames; the 747-8’s GE GENX engines and modern avionics support continued demand for high-utilization, long-endurance roles. For buyers and lessors, key considerations include the airframe’s remaining residual life, conversion costs from a commercial Intercontinental layout, and the specialized mission-fit work needed for this particular serial 40906.