Pamela Altman is suing tour company Liberty Helicopters, helicopter owner Meridian Consulting I and manufacturer American Eurocopter.
Her suit alleges Liberty and Meridian had a "horrid history of accidents" and American Eurocopter failed to equip the helicopter with sufficient safety equipment.
The crash also killed Steven Altman's brother, Daniel, and nephew, Douglas, along with the helicopter pilot and five Italian tourists.
The federal lawsuit was filed this week in Philadelphia and also names several insurance companies.
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