Officials: No mechanical issues found in 'T' crash

BOSTON (WHDH) -- The MBTA released surveillance video from Thursday’s collision at Boylston Station on the Green Line that injured more than 30 people.

The video shows the Green Line trolley lurching forward and a passenger tumbling out.

“We have ruled out both any mechanical issues for either of the trains or infrastructure, meaning track, signals etc.,” said Richard Davey, the Secretary of Transportation. “At this point we are now focused on the operator.”

Investigators said the first Green Line car -- the video shows the passengers getting tossed around inside -- was properly stopped when it was struck from behind.

MBTA driver Stephen Perno, who was hit and the driver who hit him, were among the dozens taken to the hospital.

“It’s not clear at this point in the initial discussions we had with him that we know what he was doing or what was happening at the time of the accident,” said Jonathan Davis, the General Manager of the MBTA.

Ironically, both men were slated to be given the “T’s” safe driver award on Friday morning. Other employees who were recognized were urged not to let yesterday’s accident take away from what they do every day.

"It's scary. It's a tragedy. It's scary. I feel bad for all those people," said Aggie Haverty, wife of T operator Mel Haverty.

Mel Haverty has been with the MBTA for 26 years.

“That accident is the extreme exception to the rule,” said Sean McCarthy, chief operating officer.

But the collision described by investigators as a “slow-speed bump” is gaining momentum as officials get close to determining what really happened.

“If it’s proven that he was in attentive in relation to driving that vehicle it’s unlikely he would be driving any vehicle for the MBTA in the future,” said Davis.

Perno remains hospitalized as a precaution. He is complaining of neck pain.

Investigators said they expect to know exactly what caused this crash sometime next week.

Check out the complete surveillance video here: