The Army helicopter that collided with a passenger plane above the Potomac River boasted an experienced crew doing “an unforgiving job.” Friends and relatives are still baffled and mourning their loss.

Flight data posted online appears to show another Army helicopter flying higher than the maximum altitude allowed around Ronald Reagan Washington National Airport in Washington, D.C., before last week’s fatal collision between a Black Hawk helicopter and a passenger plane.

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,

A 3-D model created by The Times visualizes the helicopter pilots’ field of view minutes before a fatal crash with a jet in Washington.

In an update on Tuesday, officials say that transcriptions for both aircrafts cockpit voice recordings are ongoing.

Data retrieved by the National Transportation Safety Board confirmed the Army Black Hawk helicopter that crashed into a passenger plane near D.C. was flying too high.

The Army pilots were juggling dark skies, low altitude, a busy airspace and a cockpit without certain traffic detectors before the helicopter’s midair crash with a regional passenger jet.