by Sarah See
A second woman died from injuries after a helicopter crash in New York's East River, authorities said Wednesday to CNN.
Helen Tamaki, 43, a New Zealand citizen who lived in Sydney, died Tuesday night after being in critical condition since the crash, Bellevue Hospital Center spokeswoman Francis Arscott said to the Associated Press.
The cause of death was "complications of near drowning," medical examiner's spokeswoman Ellen Borakove said.
Tamaki was the long-time partner of Sonia Marra, a British citizen also living in Sydney, who drowned and died Oct. 4 after the helicopter plunged into the water shortly after takeoff from Manhattan's East 34th Street Heliport, according to the Associated Press.
They were celebrating Marra's 40th birthday in the city with the other passengers, Marra's mother and stepfather and the pilot, a family friend who manages the Linden, N.J., airport, according to the Associated Press.
The helicopter's nose swung unexpectedly to the left after it was 30 to 50 feet above the river, pilot Paul Dudley said to the National Transportation Safety Board.
The aircraft went out of control after he tried to turn right and return to the heliport, Dudley said.
Three-fourths of one main rotor blade broke off when the helicopter hit the water, but the missing piece has not been found, according to a NTSB report.
A 15-member team is investigating the crash, according to the NTSB.
Determining the cause of the accident, which the NTSB report did not state, could take months, according to the Associated Press.
The survivors were Dudley and Marra's stepfather and mother, Paul and Harriet Nicholson, according to CNN.