A Federal Aviation Administration report warned of dangerous conditions at Harry Reid International Airport in Las Vegas, Nevada, due to the prevalence of air tour helicopters. The FAA said it reviewed dozens of airports in the wake of the collision between an American Airlines jet and an Army Black Hawk helicopter outside Washington,

A federal review of helicopter safety around some of the busiest U.S. airports, prompted by the deadly midair collision in January between a passenger jet and Army helicopter in Washington, D.C., revealed dangerous flying conditions at the Las Vegas airport.

The Federal Aviation Administration says analysis in the wake of January’s crash between an Army helicopter and a passenger jet landing at Ronald Reagan Washington National Airport and has identified other airports where the risks of similar collisions are too high.