The Antonov-24, a Soviet 44-seater turboprop which made its debut in 1959, was designed to take off and land on rough air strips in remote locations; over 800 of the aircraft manufactured are still in service, mostly in the former Soviet Union and Africa.  Most look as if they have had a tough life and are ready to go into assisted living in a nice warm hangar.  Despite cosmetic surgery on the wings and fuselage, the dents are visible.  When you board, you just hope that the ground crew tighten up the bolts and kick the tires before take-off.