PERRY: There was an overload - one that probably shouldn't have happened because the system is unbelievably robust, with more safeguards than I can count, but it happened. And - as with most overloads - it happened in the weakest link.
WALLACE: The F.T.L. drive is made up of sixteen separate modules. The one that blew up was the weakest link because it was the least efficient.
YOUNG: You're sure the ship can fly on the other drives?
RUSH: Even better than that.
PERRY: Without the worn-out drive bringing down overall efficiency, Destiny should be able to make it across the void.