Three people suffered fatal injuries when the helicopter plunged into the East River shortly after takeoff the 34th Street helipad on Oct. 4, 2011.
Harriet Nicholson died at Bellevue Hospital of “respiratory complications of near-drowning” — meaning a shortage of oxygen to the brain, according to Ellen Borakove, the medical examiner’s spokeswoman.
Bellevue Hospital has confirmed Helen Tamaki, the other female passenger during last week’s helicopter crash in the East River, died Tuesday night.
The investigators found no metal particles on a magnetic monitoring device inside the helicopter’s engine that could have indicated damage, said National Transportation Safety Board member Mark Rosekind.
Paul Dudley told his colleagues “I don’t know why, I just know it happened very, very fast.”
NTSB officials said the chopper likely did not have a flight data recorder, or “black box,” but engine monitors and Global Positioning System navigation equipment may have stored useful information.