The DC-3 was designed in the late thirties, and is still in commercial service to this day. They’re even getting rebuilt and converted to turboprop power.
It helps that DC 3 has an unpressurized cabin. In modern airliners, fatigue puts an upper limit on the total number of up and down cycles the airframe can ensure.
The DC-3 was designed in the late thirties, and is still in commercial service to this day. They’re even getting rebuilt and converted to turboprop power.
It is always impressive how long airframes and engines last with proper maintenance!
I doubt the engines are original, if so it would only be the block that’s still original.
The airplane of Theseus.
It helps that DC 3 has an unpressurized cabin. In modern airliners, fatigue puts an upper limit on the total number of up and down cycles the airframe can ensure.