Barometric altimeters are most common, and measure altitude above sea level using atmospheric pressure. Modern commercial ...

Over three days of sometimes contentious hearings this week, the National Transportation Safety Board interrogated Federal Aviation Administration and Army officials about a list of things that went ...

Investigators examining the midair collision between a passenger plane and an Army helicopter over Washington D.C. in January, which resulted in 67 fatalities, discovered that the helicopter was ...

(AP) – Investigators probing the January midair collision of a passenger plane and an Army helicopter over Washington that killed 67 people found the chopper was flying higher than it should have been ...