N8665D

This airframe, registered as N8665D, is a Boeing-built narrowbody delivered in 2015 with manufacturer's serial number 36652. The airframe is a Boeing 737-8H4 configured in a high-density single-class layout and is registered in the US. Ownership is held by UMB Bank N.A., Trustee, a corporate trustee based in Salt Lake City, UT, US; its trustee ownership has been a notable element in the aircraft's legal and financial record. The aircraft's documented configuration and trustee-held title have influenced lease arrangements and registry entries rather than indicating a single identifiable commercial operator/home base.

The cabin on this specific airframe is a high-density single-class configuration with 143 seats reflecting the typical Southwest-style layout; seating density prioritizes short- to medium-haul passenger throughput. Avionics and systems conform to the 737-8H4 production standard for this build period; no unique aftermarket cabin amenities are recorded for this registration. Typical mission profiles for this configuration are short- to medium-range point-to-point domestic routes within the aircraft's 3,060 nm range and cruise at 477 kts, operating in high-utilization schedules where seat count and turnaround efficiency are primary concerns. Maintenance considerations for this airframe align with standard Boeing 737 Next Generation practices, including attention to CFM56-7B engine shop visit cycles and structural maintenance intervals driven by high-density seating and frequent cycles. Trustee-held status may affect contractual maintenance responsibility and disposition decisions.

The Boeing 737-8H4 sits within the 737 family as a high-utilization, single-aisle workhorse optimized for dense short- to medium-haul markets. It competes with other high-capacity narrowbodies in airlines’ fleets for domestic and near-international missions. Demand from operators and lessors favors examples with high-density interiors like this airframe for low-cost carrier operations, while resale considerations include cycle life, engine CFM56-7B condition, and the implications of trustee-held ownership on marketability and lease negotiations.