Mi-8 wreck
 

still trying to figure out what happened here...?

https://leakreality.com/video/15217/...the-helicopter

He hit the mast?

Seems about right.

You can see the splashes as bits of (wires?) are flung around the wet tarmac after the initial splash under the rotor disc- maybe he hit a wire causing the mast to fall?

Have you seen the thread about the car that converts into a plane? Now we have a helicopter that converts into an SUV.

Are you sure the tail rotor didn't fail initially that resulted in a 'torque' turn?
CC

So mast bumping isn't only a robbie phenomenon :E

What caused the tail rotor to shear off prior to the lighting mast falling?

The boom thumped the mast and the pylon with tail rotor is missing with no significant damage between. In the video it looks as if the tail rotor came off with the pylon and the waltzing into the mast was a result.

It looks as though there was a wire/cable from the mast in the path of the main or tail rotor and it got caught on rotor start and was dragged in and wrapped around etc., bringing the mast down eventually. Had a slightly less destructive version at Akrotiri, (kite string) which put us rapidly onto Lady's Mile with a seized tail rotor and three main pitch change rods looking like bananas!
Wires and helos don't mix!

Is that object at the far end of the ramp a marshaller? - if so, he doesn't appear to offer much helpful input !!!

Off track but similar incident
 

Several decades back a US Army Blackhawk had a blade strike with a hangar taxing in. In the investigation the crew chief that was sitting on the impact side was asked if he had known that they were going to strike the hangar, he replied yes. His response to the follow up question, if he announced to the crew of the pending impact to stop was; The pilot never listened to me before why would he listen then.

The second one is symptomatic of a pilot failing to recognise the widest part of the rotor disc is a good distance behind him since he sits so far forward of the rotor mast on most large helicopters.

Pilots get used to looking in the 2/10 o'clock and maybe in their 3/9 o'clock but the full width of the rotor is in their 4/8 o'clock.

A Puma clipped the hanger at Aldergrove in about 1972. The then metal blades shattered, one tip weight going through a brick wall and carving a furrow on the top of a surprised scribbler's desk. The fuselage rolled into the hanger and the rotor head picked up the end of the coiled barbed wire security barrier. 265 RPM ensured that about fifty yards of gannet wire was wrapped around the head before it stopped.

It took about a year for the aircraft to be rebuilt. They didn't bother about the head.

they keep on coming...

https://leakreality.com/video/15537/a-hard-landing

( much of that site is unmoderated so beware )

But that was a Mi-26

skadi

Haven't seen this clip before from the satanic reality site....

https://leakreality.com/video/16290/...ves-man-s-head

well, posted under the wrong topic.
was a Bell not a Mi
Still, not a nice sight