An incident occurred at Boston's airport involving two jets, according to an aviation expert. The expert reported that a Delta Air Lines jet and an American Airlines plane were approximately 300 feet apart during the close call. This proximity forced the Delta aircraft to abort its landing attempt over the weekend.

The Federal Aviation Administration has launched an investigation into the incident. Further details about the close call and the ongoing investigation are available from the source, including any potential actions or findings from the Federal Aviation Administration.