 Though the records suggested that the US government was aware of warnings of a bombing and failed to pass the information to the airline, the families claimed Pan Am was attempting to shift the blame.Also, in December 1988 the FAA fined Pan Am for 19 security failures, out of the 236 that were detected amongst 29 airlines.In June 1989 Plaskett presented Northwest Airlines with a $2.7 billion takeover bid that was backed by Bankers Trust, Morgan Guaranty Trust, Citicorp and Prudential-Bache.