(CNN) - Some of the passengers who were onboard an Asiana Airlines jet that crashed in San Francisco last year are now suing Boeing.
A Chicago-based law firm filed suit against the jet maker.
An attorney with the firm says her clients are asking for damages and that Boeing be held "partially liable" for the crash.
The lawsuit alleges that some equipment on the Boeing 777 plane was improperly installed or defective, resulting in inadequate warnings for the pilots about low airspeed.
The incident left three people dead and nearly 200 injured.
CNN reached out to Boeing but a spokesman declined to comment on the lawsuit.
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