A tourist helicopter that plummeted into the Hudson River collided with geese moments before the disaster, according to documents released by the National Transportation Safety Board.
Investigators found bird remains on the aircraft's rotor blades, evidence pointing to a bird strike in the moments leading up to the crash. The NTSB recovered material from at least two birds during its examination of the wreckage.
The discovery adds a new dimension to the investigation into what caused the aircraft to go down. Bird strikes involving aircraft are relatively common but rarely catastrophic. However, the timing and location of this incident raised questions about whether the collision played a role in the helicopter's loss of control.
The Hudson River crash killed all passengers aboard the sightseeing flight. The accident sparked renewed scrutiny of helicopter tour operations in the New York area, which operate in heavily congested airspace and frequently encounter wildlife.
The NTSB has not yet issued final conclusions about the crash's cause. The agency's investigation continues to examine other factors including weather conditions, mechanical systems, and pilot response during the incident.
Helicopter tour operators have faced increased pressure to enhance safety measures following several high-profile accidents in recent years. Federal regulators have been examining whether current flight protocols adequately account for wildlife hazards in urban and water-based flying zones.
Author Sarah Mitchell: "A bird strike in the middle of Manhattan airspace shouldn't be a death sentence for a modern helicopter, which raises uncomfortable questions about what else may have gone wrong that day."
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