Originally Posted by
etudiant
If memory serves, the expected life of the MD90 was north of 100,000 cycles,
so given reasonable maintenance and barring corrosion, they should outlast us.
We're talking MD80 series, not MD90, and the
new ones are 20+ years old. There are early 1990s build 767s and 747-400s that have north of 100k hours. And the Mad Dogs are pretty noisy - there will soon be a lot of airports that won't allow them (especially in the wee hours when freighter operators like to fly)