National Transportation Safety Board investigators say they will have report into crash within 30 days
- Cockpit voice and flight data recorders recovered
- Champion Russian pair and US skaters were on plane
- Visual guide – how did the DC plane crash unfold?
Reagan national’s main runway is the busiest in the United States, with more than 800 daily takeoffs and landings.
The National Transportation Safety Board has investigated nine accidents or incidents at the airport this century, including two that were fatal, records showed.