One of her friends, the co-founder of Voices of September 11, spoke with Eyewitness News about the lasting impact Eckert left on the group.
Mary Fetchet says Eckert lost her husband, Sean Rooney, during the 9/11 attacks. Since then, Eckert made it her mission to be an advocate for the families of 9/11 victims.
"I met Beverly shortly after she lost her husband and I lost my son on September 11," Fetchet said. "Over the years, I've seen her conviction, her dedication, her commitment to making a difference, particularly in the area of making the county safer."
Eckert was on her way to hand out a scholarship in her husband's name when the plane went down.
"We're certainly personally devastated," Fetchet said. "The 9/11 community is devastated and her death has certainly reverberated through our community."
Friends now say Eckert has been reunited with her husband, and her life's work will not be forgotten.
"It was a privilege to work with Beverly and we're going to sorely miss her," Fetchet said.
Authorities are still trying to find out what went wrong on Continental Connection Flight 3407.
It's not yet clear what caused the plane to go down, but investigators say it's possible that ice build-up on the wings and windshield of the plane played a role.
All 49 people on board were killed along with a person on the ground. Officials say it could still take several days to recover all the victim's bodies.