Canonical event record
What happened
The FAA is investigating a reported unauthorized departure by a NetJets Phenom 300 at LaGuardia as an Endeavor Air CRJ900 approached an intersecting runway. The Delta Connection crew executed a go-around; the aircraft reportedly came within approximately 1,000 feet.
Why it matters: The incident highlights runway-conflict and clearance risks at a major New York airport; the FAA investigation will determine the sequence of events.