Some of the victims were identified on Monday.
Ms Dinh-Zarr also said it was legal for doors to be open on this model of helicopter, and safety floats did inflate on the helicopter as it made contact with the water.
All five passengers aboard the Liberty Helicopters chopper were killed in the Sunday's crash that the pilot said was caused by one of their bags hitting a critical piece of equipment, the Daily News New York reported.
According to New York Police Department Commissioner James P. O'Neill, the Liberty Helicopters aircraft was on a private charter for a photo shoot when it descended into the East River just south of 86th Street around 7 p.m.
The National Transportation Safety Board will determine probable cause of the incident, the Federal Aviation Administration said. According to multiple sources, a Eurocopter AS350, went down in the East River, near Roosevelt Island in NY, at approximately 7:00 p.m. EST, while carrying a group of five people for a private photoshoot.
The passengers were reportedly trapped inside the submerged helicopter due to the safety harnesses they were wearing.
Pilot Richard Vance, who managed to free himself from the rapidly sinking chopper, was the only survivor of the flight. "People had to be cut out", he said.
Vance was able to escape and appears to have been rescued by passing tugboat.
The current in the water was 4 miles per hour, according to officials.
Several reports say the pilot told investigators a strap from a passenger's bag may have pulled the emergency fuel cut-off valve, but aviation experts question whether that realistically could have happened.
"He's a true f--ing pilot, so just let him be", he said.
Argentina's NY consulate said Carla Vallejos Blanco was one of the victims.
Earlier Monday, New York Sen.
Cuenca del Plata University in Argentina said she studied art, design and communications. His internship at the business news site Business Insider ended a few weeks ago. Cadigan had been an intern at WFAA, where his father, Jerry Cadigan, works as a production manager. "All of our thoughts and prayers are with the victims and their families".
The company has "a fleet of 10 state-of-the-art Airbus helicopters (formerly American Eurcopter)", according to the website. "We have been in business and flying safely for over 30 years", it says.
The company paid $US23,576 in fines in 2010 and 2011 for violating maintenance, record-keeping and flight operations rules, according to the FAA.
In 2009, a sightseeing helicopter of the same model and operated by the same company as the one in Sunday's wreck collided with a small, private plane over the Hudson River, killing nine people, including a group of Italian tourists. Fortunately, aided by an off-duty paramedic on board, all eight people survived.