"A guy helped, and we got her pulled in and they tried to resuscitate her," he said.
That guy was firefighter Andrew Needum of Celina, Texas.
Together, the men pulled the mother of two back inside the plane.
"My husband lives his life for others every day, and today was such a strong reminder that life is so precious and that there are good people all around us," McGinty's wife, Kristin, said on Facebook last night.
Needum and a nurse performed CPR on Riordan, passenger Sheri Sears said in a Facebook post following the incident.
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Sears said half of Riordan's body was sucked outside the window before McGinty and Needum pulled her back in.
They weren't able to revive Riordan, who died from her injuries.
The plane made an emergency landing in Philadelphia.