WASHINGTON - The new chairman of the National Transportation Safety Board says the deadliest crash in Metro's history really hit home for the agency's investigators, many of whom use the system every day.

Newly confirmed chairman Debbie Hersman warns the investigation could take even longer than the typical year because it's so technical and challenging.

Hersman was the face of the investigation in the days after the crash and says this particular crash really hits home.

"I've had the opportunity to meet with some of the families and just knowing the devastating impact that has in the lives of parents, children and people who were loved very much," Hersman said.

Within minutes, Hersman says she was driving to the crash site from her downtown office. She quickly became the calm, strong voice of the June 22nd red line crash, sometimes even at odds with local leaders.

"We need to be able to work cooperatively with others but we also need to be the truth tellers, we need to hold up a mirror and say this is what we're seeing and sometimes it's not good," Hersman said.

ABC 7 caught up with Hersman just after her return from the scene of the mid-air collision in New York last weekend.

She's been a board member for five years, but at 39, Hersman is one of the youngest chairmen ever.

She says being a mother of three young boys keeps her focused on the victims and families when tragedy strikes. And as for Metro, she vows the investigation will get to the bottom of the agency's problems no matter how long it takes.

"We know there is a very high level of vigilance right now on the system and the safety board is going to be very focused on what we can find on this accident not only for metro but nationwide," she said.

Chairman Hersman believes it's important to have first hand knowledge of what she's making recommendations about, so she is licensed to drive large trucks, motorcycles and school buses. Her next goal is to obtain a pilot's license.

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