Ribbeck Law Chartered says in a news release that it filed a petition Tuesday in Cook County Circuit Court in Chicago to help preserve evidence in the July 6 crash. Three people were killed when the Boeing 777 clipped a seawall at the end of a runway.
Ribbeck says additional pleadings will be filed against Asiana Airlines and several component parts manufacturers.
The firm says the crash might have been caused by a mechanical malfunction of the auto-throttle. It also says some sliding ramps reportedly opened inside the plane, injuring passengers and blocking their exit.
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