WASHINGTON: The US national transportation safety board is examining “bad data” the crew of an army Black Hawk helicopter may have relied upon prior to its deadly crash with a passenger jet outside Washington DC late last month, an official said.
NTSB chair Jennifer Homendy also said pilots of the helicopter that crashed with the airliner were believed to be wearing night vision goggles.
The NTSB has been investigating the mid-air collision between the helicopter and the American Airlines Bombardier jet that killed 67 people in the deadliest US air disaster in more than 20 years.
Homendy also noted that the on-scene portion of the investigation into the disaster had now been finished.