Each and every aircraft needs to undergo wing testing before the FAA certifies it for commercial flights. For those who’ve never seen the process, please check out an interesting video after the break.
The Boeing 787 cleared the 150% with no trouble at all, but engineers stopped short of snapping the wing. Why? Because the 787 uses revolutionary composite wings, and breakage could result in an explosion of thousands of shards material spreading around the construction hangar.