Get some glasses!
Another video shows a giant field to the left side of the building 4000ft X 2500 ft several thousand feet behind that power lines, in front of the building a nice area that you could land a few chinooks.
on one video they removed the tail rotor with the gearbox & shaft. then later on the way down it's reassembled
.
All the 300s I've seen normaly have the tail boom cut off when the auto comes to an end,
This one is not the typical "emergency " landing.