Video of the sightseeing helicopter careening into the Hudson River suggests a catastrophic failure of a rotor, experts said.

The aircraft was on a sightseeing flight when it suddenly broke apart in midair, its rotor blades falling separately toward ...

Pieces of what appeared to be the main rotor and tail fell separately as the cabin of the helicopter landed upside ... were aboard the 2013 flight and no one was injured in the landing.

The National Transportation Safety Board said the aircraft's last "major" inspection took place on March 1.

you have no lift, you're done," Alexander said. "There's nothing you can do at that point; you're just a falling object." He said a helicopter that loses just a tail rotor is a severe situation ...

The tourist helicopter that crashed into the Hudson did not have a flight recorder, the NTSB said on Saturday.

The NTSB is investigating what caused a sightseeing helicopter to break apart and crash into the Hudson River, killing all six on board.

"If you lose your main rotor, meaning it's detached, you have no lift, you're done," Alexander said. "There's nothing you can do at that point; you're just a falling object." He said a helicopter that ...

The helicopter’s main and tail rotor detached from the body ... is that it either had a bird strike or the main rotor blades failed. I have no clue. I don’t know," he told the outlet.

Meanwhile, divers from the New York Police Department continued recovery operations on April 13, searching for several parts of the helicopter.