Investigators say Mexican ship accelerated when it backed into the Brooklyn Bridge
A sudden acceleration

The Mexican Navy ship that crashed into the Brooklyn Bridge on May 17 suddenly accelerated while backing into the infrastructure, federal officials said. It is the first finding of the investigation into the accident.
First report

In a press conference following the accident, officials from the National Transportation Safety Board (NTSB) said they are expected to release a first report in 30 days.
It is just the start

“We will not be drawing any conclusions. We will not speculate,” Michael Graham, an NTSB board member, told the media, according to The New York Times.
“Mechanical problem”

The investigators said the conclusions of the Cuauhtémoc ship investigation could take up to two years. According to CNN, local police first speculated that the accident occurred due to a "mechanical problem."
Accelerating

Also from the NTSB, Brian Young said the ship was moving at about 2.3 knots after shoving off the pier, but the speed suddenly increased. By the time of the coalition, it had reached 6 knots.
Unclear reasons

Mr. Young added that the reasons for the acceleration are unknown. He also said the ship sought assistance by radio several seconds before the crash, and emergency workers reached the scene three minutes after it.
Rudder failure

Experts analyzed a New York Times video to confirm the claims. The captain of the Cuauhtémoc said he lost control of the vessel after the rudder stopped working.
More questions

The investigators also said they would interview the harbor pilot, whose job was to help the Mexican crew navigate the difficult New York Harbor conditions, the New York Times said.
Data recorder

Another key piece is the ship's voyage data recorder, which can provide crucial information. An NTSB board member told the media they were working with Mexican authorities to access the boat and records.
Why was it there?

The ship was a school boat from the Mexican Navy. It set out from Acapulco on April 6 for a months-long world tour to finish cadet training. The ship sailed through the Caribbean before reaching New York. It was setting out for Iceland.
277 crew members

Following the accident, the ship was moved to a nearby dock for the crew to disembark, and is now undergoing repairs. The ship, measuring 91 meters long and 48 meters high, was carrying 277 people.
Dead and wounded

The ship's collision left two sailors dead and at least 22 injured, the Mexican authorities confirmed. They said that most crew members returned to the country, and two are still hospitalized.
A cadet and a sailor

Mexican authorities also confirmed the deceased were cadet America Yamilet Sánchez (photo), from Xalapa, Veracruz, and sailor Adal Jair Marcos, from San Mateo del Mar, Oaxaca.