Dozens have died in accidents since helicopters were allowed in the city in 1949. Residents have complained for nearly as long, but reforms rarely stick.

A tourist helicopter crashed in New York's Hudson River off lower Manhattan on Thursday afternoon, killing all six people on board. It was the latest in a series of accidents involving choppers operating around the city in recent years.

A helicopter crash that killed six in New York City has renewed concerns about the safety of the popular sightseeing excursions