[baybal2]

Yep, and it is the fuse that broke, not the wing!

The reason fuse has an "expiration date" set by the amount of pressure cycles is because aluminium breaks more due to microcracks and other metallurgical fatigues, than due to ductile failure.

A composite lined fuse could've extended the life of an average airplane long beyond its moral obsolescence, and for this reason airplane makers are afraid adopting it.

[perl4ever]

What is "moral obsolescence"? If you mean "normal obsolescence", planes are used for a long time, so what would draw the line between normal lifespan and excessive?

[baybal2]

Think for yourself