N659NK

This article concerns the specific airframe registered as N659NK, an Airbus A321-231 built in 2015 with manufacturer serial number 6770. The airframe is recorded as owned by UMB BANK NA TRUSTEE, a corporation based in Salt Lake City, UT, US, and carries a United States registration. The type is catalogued as a fixed-wing multi-engine transport and the airframe's market valuation is listed at $37,000,000. The recorded transfer into the trustee ownership represents the most notable documented change in title for this airframe.

This airframe is fitted with a high-density single-class 379-seat all-economy cabin layout optimized for high-capacity short- to medium-haul revenue operations. The cockpit uses the Airbus A320-family glass cockpit with fly-by-wire flight controls, consistent with A321-family operational and training standards. Typical mission profiles for this configuration include dense, high-frequency passenger services where seat-mile economics are prioritized and range capabilities up to 3,213 nm permit extended domestic and transcontinental sectors. Maintenance considerations for this individual aircraft reflect the high-utilization nature of high-density layouts, where cabin refurbishment cycles and structural inspections are scheduled to support intensive turnaround operations.

The Airbus A321-231 of this vintage occupies the single-aisle, high-capacity niche in the A320 family, offering increased seating over shorter-fuselage variants while retaining commonality across the family’s flightdeck and systems. Competing airframes in the market include stretched narrowbodies and high-density configurations of rival models; buyers evaluate fleet commonality, utilization rates, and refurbishment costs when considering acquisitions. For this airframe, the relatively recent 2015 manufacture date and the specified engine type factor into maintenance outlooks and resale value, supporting its $37,000,000 valuation in secondary-market assessments.