[polstar123]

Sorry to have lost a Marine in this accident.

The Osprey has had so many thousands of hours of successful mission time, especially in Afghanistan, I don’t think we should be too critical of it. But maybe Obama should start flying his expensive MV-22 version of the Osprey instead of reserving it for Bo the dog.

[pfflier]

The Osprey has a very good operational record since it's teething pains in development.

The problem likely encountered here is that the pilot misjudged his approach speed and entered a vortex ring state.

http://www.globalsecurity.org/military/systems/aircraft/v-22-vrs.htm

Since this happens close to the ground one possible outcome is in fact, a hard landing.