Close call with passenger jet happened after Army helicopter tried to land without clearance, preliminary report confirms

A Pentagon-bound Army helicopter that got less than half a mile from a commercial flight landing at nearby Ronald Reagan Washington National Airport in May did not have the proper clearance from Pentagon air traffic controllers, a preliminary report from the National Transportation Safety Board said Friday.

​ A Pentagon-bound Army helicopter that got less than half a mile from a commercial flight landing at nearby Ronald Reagan Washington National Airport in May did not have the proper clearance from Pentagon air traffic controllers, a preliminary report from the National Transportation Safety Board said Friday. Read More Breaking News, Latest News and Videos | CNN