In the 2012 film [*Flight*][1], the cause of the mechanical failure is a sort of worm-screw that controls the rear tailplane. And I believe that in real life failures in those devices have been implicated in one or more crashes, with people shocked that there were no fail-safe mechanisms.

Do airline pilots feel or have a responsibility not to subject a machine to extreme mechanical stresses? Or is the assumption that nothing they can really do has not been foreseen by the designers?

Do some individual flying techniques, used by pilots, wear aircraft out quicker than others?


  [1]: https://en.wikipedia.org/wiki/Flight_(2012_film)