On May 16, 1977, the landing gear failed on a Sikorsky S-61L (N619PA) while it was taking on passengers on the roof of the Pan Am Building. The aircraft fell onto its side. Its spinning principal rotor blades killed four passengers waiting to board (including movie director Michael Findlay) and injured a fifth. Parts of a broken blade fell into the streets below, killing one pedestrian and injuring another. The accident precipitated the permanent closure of the heliport.[11]
Computation, sure. Aviation? Not really: helicopters today are not much different from those in 1977, and not much safer either. When they crash (and they do), it's just as bad as this 1977 crash.
what’s the incident rate per trip though? 3 accidents over the course of a couple decades might or might not be substantially different than other forms of transport, especially after considering the improvements mentioned by sibling.
https://thepointsguy.com/news/when-helicopters-landed-on-man...
It did not work out so well...
On May 16, 1977, the landing gear failed on a Sikorsky S-61L (N619PA) while it was taking on passengers on the roof of the Pan Am Building. The aircraft fell onto its side. Its spinning principal rotor blades killed four passengers waiting to board (including movie director Michael Findlay) and injured a fifth. Parts of a broken blade fell into the streets below, killing one pedestrian and injuring another. The accident precipitated the permanent closure of the heliport.[11]