The Federal Aviation Administration (FAA) is investigating a close call between two commercial aircraft at Boston Logan International Airport on Saturday. According to reports, an American Airlines jet was cleared to depart while a Delta Air Lines aircraft was approaching the airport and preparing to land on an intersecting runway. Multiple outlets report that the planes came within about 300 feet of each other. In one description of the incident, the Delta crew aborts the approach and performs a go-around after determining the American aircraft was departing from a runway intersection, as indicated by the FAA. Other coverage references air traffic control audio and characterizes the event as a tense moment involving runway movements. The FAA investigation focuses on what happened in the coordination and timing of the runway crossing and landing and departure clearances. No injuries or damage are reported in the available accounts.