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.

The Federal Aviation Administration has launched an investigation into the incident. Details about the incident are limited, but the FAA's investigation is underway. For more information about the close call and the ongoing investigation, readers can refer to the source for further details and updates as they become available.