What happens to aircraft at the end of their life?
They are parted out — stripped of valuable components and then recycled — and the economics are such that a retired airliner is worth considerably more dismantled than flying.
Why aircraft retire. Rarely because they are worn out. Airframes are designed around cycles — a pressurisation cycle each flight — and maintained indefinitely in principle. Retirement is driven by economics: fuel efficiency of newer types; the cost of a heavy maintenance check, which can exceed the aircraft's market value; engine overhaul cost; noise and emissions rules; and fleet simplification.
Storage first. Many go to desert facilities with dry air and stable ground, where they can be preserved for possible return to service, stored pending sale, or dismantled. Parking is not the same as scrapping — large numbers returned to service after the pandemic.
Where the value is:
Engines, which are by far the most valuable assets and are frequently owned or leased separately from the airframe. A single overhauled engine can be worth millions.
Landing gear, auxiliary power units, avionics and flight controls, which carry documented service histories and can be recertified.
Interior components, seats and galleys.
Traceability is everything. A part is only sellable with complete certified documentation of its history; without it, an otherwise serviceable component is scrap.
Then recycling. Modern programmes recover a high proportion of the airframe by weight — aluminium, titanium, copper wiring and steel — with industry initiatives targeting figures above 90%. Composite structures are the hard part, since carbon fibre is not straightforwardly recyclable, and this is a growing problem as composite-heavy types age.
What must be handled carefully: fuel and hydraulic fluids, oxygen and fire suppression systems, batteries, and older aircraft containing hazardous materials.
The reuse stories — cabins converted into homes, hotels and restaurants, and parts made into furniture — are real and account for a negligible share.
Nothing is thrown away casually, because the regulatory paperwork and the residual value both make careful dismantling worthwhile.