Bell 212,
Thanks for that. I hope you and the pax behind are ok.
Depending on the conditions in a Dash v1 is normally the same as vr or within 1 or 2 knots.
As can be seen on the debate about birdstrike continuing to destination, the Fo went back and had a look. When the wheel came off another dash I believe one of the crew went back as well.
Presumably dark so it would be quite hard to see the extent of the damage, however as I said before, just a blown tyre, should not have caused such vibration and subsequent gear collapse. It is possible that visual inspection by flight deck could have identified the extent of the damage with different decisions. There again maybe not.
Obviously the gear would still have collapsed but with a shutdown engine maybe not so much damage to pax.
It is perfectly ok for flightdeck to leave the cockpit so long as correct procedures are followed. I for one would probably want to go back myself and look.