HOUSTON (May 23, 2014) The Federal Aviation Administration is investigating an incident on May 9 in which two United Airlines planes came within less than a mile of each other separated in altitude by just 400 feet.
Both planes had just taken off from Bush Intercontinental Airport, an FAA spokesman said.
An air traffic controller told the pilot of United Flight 601 to turn right after takeoff, and then noticed that the plane was heading into airspace normally reserved for planes on another runway, the FAA said.
United Flight 437 had just taken off from that second runway.
The FAA says the controller gave both pilots instructions to keep the planes apart.