Over three days of sometimes contentious hearings this week, the National Transportation Safety Board interrogated Federal ...

The NTSB concluded three days of investigative hearings into the collision between an Army helicopter and a passenger plane ...

An NTSB investigation into a fatal helicopter-airplane collision in D.C. revealed a faulty helicopter altimeter and prior ...

A deadly midair collision occurred in Washington this January. Sixty-seven people died in the accident. A broken altimeter ...