If what just happened meets certain NTSB definitions, they’ll want immediate notification. And even if your event wasn’t an accident, they still may request you submit a report by completing NTSB Form 6120.1, Pilot/Operator Aircraft Accident/Incident Report. It’s always a good idea to consult with counsel before filing any such form, and you have up to 10 days. But there’s a good chance what happened doesn’t require notification. How can you tell? The NTSB rules do a pretty good job of laying it out.

