Federal authorities are investigating a close call Tuesday involving a military helicopter and a United Airlines plane approaching John Wayne Airport in Santa Ana.
United Airlines Flight 589 was approaching the airport in Orange County at about 8:40 p.m. Tuesday when a Sikorsky Black Hawk helicopter crossed its path, according to the FAA.
Pilots on the United Airlines plane were advised by air traffic control to watch for the military helicopter flying near the airport, United Airlines said…