National Transportation Safety Board investigators issued a pair of “urgent” safety recommendations for helicopter paths on Tuesday as part of their preliminary report into the deadly midair collision over the Potomac River in January.

Helicopters should be barred from a four-mile stretch over the Potomac River when flights are landing on Reagan National Airport’s Runway 33, National Transportation Safety Board Chair Jennifer Homendy said as the NTSB unveiled “urgent safety recommendations” after the deadly mid-air collision in January.

Dozens of passengers were forced to stand on the wing of an American Airlines plane at Denver International Airport as they evacuated the aircraft after one of its engines caught fire Thursday evening,

A fire on an American Airlines plane after it diverted mid-flight and landed at Denver International Airport sent fleeing passengers to a wing amid billowing smoke