If a helicopter landed on my roof…

It will depend upon how near the strength limits the excess load is. If you have several minutes to spare, you can watch a piece of steel being stretched until it fails here, followed by a piece of precipitation hardened aluminium:

Colin Bignell

So gearbox failed stopping the tail rotor? But why guess when the experts will tell us in a month or two?

Doesn't add up. First thing to do is chop power on main rotor and autorotate down.

"dennis@home" posted

You're forgetting that this was a *police* helicopter, so the experts will tell us in a decade or three.

NO it was a helicopter CHARTERED by the police or at least run independently of them. They cannot obstruct the AAIB in any way at all.

The answers will probably not make the MSM and 'helicopter crash down to corrosion and failure in bearing 357 in association with cracked hub part G696 is not 'Yuman Intrest' and so they think humans wont be interested.

Realistically, a year or two is more probable. There may be an earlier interim report, if there was something very obvious, but most AAIB field reports (ones where they are directly involved) generally take that long.

Colin Bignell