Here is some old material used in Europe to prepare for the transition from AIS to AIM: AIS to AIM: Enabling the Net-Centric Information Environment by Roderick van Dam, Head of Eurocontrol Legal Service. The document references two legal cases where navigational data and hardware were involved.
Pakistan International Airlines
Bejon v. Pakistan International Airlines (Toulouse Court of
Appeal, 1998) Liability of Jeppesen raised. Jeppesen argued that
approach map was based on map provided by States. Court concluded
that map was technically acceptable This case confirmed the risk
related to the publication of Aeronautical data.
More: PIA Flight 268.
American Airlines
American Airlines v. Jeppesen- Anderson and Honeywell (US Federal
Court, 2000) The Accident Report had concluded: the probable causes
of the accident were related to failures of the flight crew;
contributing factor was related to FMS-generated navigational
information; AA blamed the Jeppesen software in the Honeywell
computer; alleged that products helped caused the crash; A Federal
Jury found that Jeppesen was 17% at fault and Honeywell 8 % at
fault.
More: American Airlines Flight 965.