N300SW

This airframe, tail number N300SW, is a Boeing 737-300 (737-3H4) built in 1984 with manufacturer serial number 22940. It is recorded as owned by FRONTIERS OF FLIGHT MUSEUM INC, a corporation based in Dallas, TX, US, and is registered in the US. The airframe carried a 149-seat single-class, Southwest high-density layout historically, and has since been restored as a museum exhibit with visitor access at its current home. Registry records and preservation efforts emphasize its role as a representative example of early-generation CFM56-powered 737-300 service life rather than an active revenue aircraft.

This specific 737-300 was outfitted in a 149-seat single-class configuration consistent with the high-density layout historically used by Southwest; today the cabin is presented for public access as part of a museum display. Typical mission profiles for this airframe during airline service would have been short- to medium-haul domestic rotations, leveraging a cruise speed of 430 kts and a range of 2,255 nm to serve frequent-turnaround schedules. Avionics and systems on the 737-300 series are conventional for late-1970s/1980s Boeing narrowbodies, requiring maintenance regimes appropriate to older-generation avionics and airframe systems. As a museum exhibit, the aircraft’s maintenance focuses on preservation, static-system functionality and visitor safety rather than line service airworthiness.

The Boeing 737-300 occupies the early Classic-series niche between older 737 variants and later Next Generation models, offering modest range and capacity for short- to medium-haul markets. With CFM56-3 series engines providing 20,000 lbf thrust apiece, the type competed historically with similarly sized turbofan narrowbodies for high-frequency domestic routes and charter work. By virtue of its 1984 build year and 149-seat high-density fit, resale and operator demand have declined relative to newer 737-700/800 series models, and maintenance and parts considerations reflect legacy-system support and airframe fatigue monitoring common to aircraft of this vintage.