NEW YORK: The Federal Aviation Administration is investigating two incidents in which airplanes spotted a drone flying near them as they were landing at John F. Kennedy International Airport, one of the nation’s busiest airports. One of the airplanes reportedly came within 100 feet of the unmanned aircraft. Delta Flight 407, an MD-80 en route from Orlando, was preparing to land at 4:55 p.m. Friday at JFK when it spotted a drone flying at 100 feet about a quarter-mile from the aircraft. JetBlue Flight 1834, an Airbus A-320, was arriving from Port-au-Prince, Haiti, earlier that day at 2:24 p.m. when the pilot also reported seeing a drone near the airport. In the audio recording, the cockpit says the drone passed just below the plane’s nose when the plane was flying at an altitude of about 800 to 900 feet. Both airplanes landed safely. Drones are not supposed to fly within 5 miles of an airport without notifying the control tower. They are also not supposed to fly above 400 feet.