Yep.
Likely the best 2 helicopters on the planet, with the best 2 military pilots, in good nighttime conditions, flew in to get Bin Laden and only 1 made it back.
Compare that to some tourist trap helicopter.
That pilot was landing inside a small, walled compound and clipped the wall with his tail.
The location in Nevada was at 1,200 m (4,000 ft) elevation—chosen to test the effects the altitude would have on the raiders' helicopters. The Nevada mock-up used chain-link fences to simulate the compound walls, which left the U.S. participants unaware of the potential effects of the high compound walls on the helicopters' lift capabilities.
The walls at the real deal trapped the downdraft air, screwed up the helo's lift, and contributed to the accident.
This helicopter over the Hudson came apart. I think this ends up being a maintenance issue.: