Altimeter in Black Hawk helicopter may have malfunctioned before DCA mid-air collision
Briefly

The National Transportation Safety Board provided an update on the investigation into the mid-air collision between a U.S. Army Black Hawk helicopter and an American Airlines regional jet that resulted in the deaths of 67 people. The collision occurred at 278 feet, higher than the Black Hawk's intended altitude of 200 feet, raising questions about altimeter reliability. Issues with radio communications contributed to the incident, as critical transmissions between air traffic control and the helicopter crew may not have been fully received. The NTSB plans to create a visual simulation to better understand pilot perspectives during the event.
NTSB chairwoman Jennifer Homendy explained that conflicting data regarding altimeter readings and radio transmissions between the aircraft complicate understanding the accident.
Homendy noted that the helicopter was supposed to maintain an altitude below 200 feet, yet the crash occurred at 278 feet.
Read at www.npr.org
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