N109JS

The airframe bearing tail number N109JS is a Boeing 737-8 MAX built in 2019 with manufacturer's serial number 43712. The aircraft is owned by Jackson Square Aviation (lessor) / Aeroméxico (operator) and is recorded with a US registration; its operational base is associated with San Francisco, CA, USA / Mexico City, Mexico reflecting a lessor/operator relationship. The airframe is a fixed-wing multi-engine category aircraft fitted and delivered by Boeing and equipped for commercial service; registry records emphasize the lessor/operator arrangement rather than owner-operator consolidation. Notable administrative points include the aircraft’s leasing structure and cross-border operational base allocation, which have defined its employment and maintenance oversight.

The cabin is configured in a two-class layout with 16 business / 150 economy seats, supporting typical short- to medium-haul network operations for a legacy carrier operator. As a Boeing 737-8 MAX, this specific airframe operates with twin CFM International LEAP-1B turbofan engines, producing 28,000 lbf thrust each, enabling transcontinental and regional sectors within its 3,550 nm range and cruise speed near 460 kts. The aircraft’s operator, Aeroméxico, positions it for scheduled passenger service from hubs including Mexico City while ownership and leasing oversight are managed from San Francisco through Jackson Square Aviation, creating a joint operational and asset-management footprint. Maintenance considerations for this airframe reflect MAX-series commonality in avionics and engine type, streamlining line and heavy checks under the lessor/operator maintenance protocols.

The Boeing 737-8 MAX airframe represented by N109JS occupies the single-aisle narrowbody performance niche with a nominal ceiling of 41,000 ft and seating for 166, competing against modern narrowbodies aimed at similar mission profiles. Its range and cruise make it suitable for domestic and near-international trunk routes where airlines seek fuel-efficient replacements for older single-aisle types. For lessors and operators, considerations include fleet commonality, engine maintenance cycles for LEAP-1B powerplants, and remarketing tied to two-class seating density; the documented lessor/operator arrangement for this airframe affects residual value and deployment flexibility in secondary markets.