Newly released data from ground-based radar came out Tuesday suggesting an Army helicopter was flying higher than it was supposed to be when it collided with American Airlines Flight 5342 a week ago,

A military helicopter was flying above the maximum altitude for its route when it collided with a passenger plane near Washington D.C. last week, authorities said. The National Transportation Safety Board said in an update on Tuesday that it obtained data,

The National Transportation Safety Board says the helicopter must be recovered from the Potomac River so it can get more precise data.