Investigators Say Tesla Car Was 9 MPH Above Speed Limit In Williston At Time of Crash

This photo provided by the NTSB via the Florida Highway Patrol shows the Tesla Model S that was being driven by Joshua Brown, who was killed, when the Tesla sedan crashed while in self-driving mode on May 7, 2016. (Florida Highway Patrol)

WASHINGTON — The driver killed when his Tesla sedan crashed in Williston while in self-driving mode was traveling at 9 mph above the speed limit just before hitting the side of a tractor-trailer, federal accident investigators and private investigator services said Tuesday.

Data downloaded from the Tesla Model S shows the vehicle was traveling at 74 mph in a 65-mph zone on a highway in Williston, the National Transportation Safety Board said in a preliminary report.

The driver, Joshua Brown, 40, a tech company owner from Canton, Ohio, was using the sedan’s cruise control and lane-keeping features at the time, the report said. Those features are part of the vehicle’s Autopilot self-driving system, but the NTSB report doesn’t mention the system.

The National Highway Traffic Safety Administration, which is also investigating the crash, has previously said the Autopilot was engaged.

The Tesla’s roof struck the underside of the truck’s 53-foot semitrailer at a 90-degree angle, shearing off the sedan’s roof before it emerged on the other side of the trailer, according to the report. The truck was making a left turn at the time.

The sedan is equipped with automatic emergency braking. Tesla and NHTSA have previously said the Autopilot was unable to distinguish the white side of the truck from the brightly lit sky and there was no attempt to brake by either the self-driving system or Brown.

Tesla CEO Elon Musk didn’t address the report Tuesday at an event at the company’s battery factory in Nevada. But he did reiterate that the company will press ahead with semi-autonomous driving features, which can prevent injuries and accidents.

“I think it’s been unequivocally a good thing,” Musk said.

USA TODAY also reported Wednesday Tesla’s move away from Mobileye, a company that makes parts for the “partial self-driving system.”

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