The two-story, wood-frame home was gutted. The first floor was nearly completely blown out and smoke drifted from a gaping hole in what was left of the collapsing roof. No one was injured in the adjacent homes that also had major damage.
The founder and CEO of a North Carolina clinical research organization was among those on the plane. Health Decisions of Durham, North Carolina, said in a news release that Dr. Michael Rosenberg was among those killed.
Rosenberg was a pilot who crashed a different plane in Gaithersburg on March 1, 2010, according a government official who wasn't authorized to speak publicly and asked not to be named. Investigators are still trying to determine if Rosenberg was at the controls at the time of Monday's crash.
Fred Pedreira, 67, who lives near the crash site, said he had just returned home from the grocery store and was parking his car when he saw the jet and immediately knew something was wrong.
"This guy, when I saw him, for a fast jet with the wheels down, I said, 'I think he's coming in too low,'" Pedreira told The Associated Press. "Then he was 90 degrees — sideways — and then he went belly-up into the house and it was a ball of fire. It was terrible.
"I tell you, I got goosebumps when I saw it," Pedreira said. "I said, 'My God, those are people in that plane.'"
Emily Gradwohl, 22, who lives two doors down from the house the jet hit, was home at the time and ran outside to see what had happened.
"I heard like a loud crash, and the whole house just shook," Gradwohl told The AP. "We got jackets on, ran outside and saw one of the houses completely set on fire."
She said planes fly low over the neighborhood every day but she had never worried about a crash.
The Embrarer EMB-500/Phenom 100 twin-engine jet, which seats six people, was on approach to Montgomery County Airpark, which is about a mile from the crash site, officials said. A team of NTSB investigators recovered the cockpit voice and flight data recorders from the downed plane.
The agency planned to look into everything that could have led to the crash, including crew experience and proficiency, training and procedures, equipment performance, weather and other environmental factors such as birds, Sumwalt said.