He initially served as the director of the press department for the consulate of
West Germany in New York, a role that utilized his multilingual skills and knowledge of
German-American relations. In the 1960s, he transitioned to a career as an international business consultant, specializing in cross-border trade and negotiations. His professional experience included work with European and American firms. Among the passengers onboard the flight was Ephraimson-Abt's daughter Alice, an
East Asian studies graduate of
Wittenberg University, who was traveling to
Beijing, via Seoul and then
Hong Kong, to teach English and study
Mandarin at
Renmin University of China. Many families, including Ephraimson-Abt, were not directly informed by the airline. Instead, he learned of the shootdown from a hotel manager in Hong Kong whom he had asked to assist Alice upon her arrival. When he contacted
Korean Air Lines for information, the airline abruptly ended the call, offering no assistance or details. Prior to the
dissolution of the Soviet Union, Ephraimson-Abt secured the support of Senators
Ted Kennedy,
Sam Nunn,
Carl Levin and
Bill Bradley, who jointly wrote to
Soviet President Mikhail Gorbachev requesting details about KAL 007. The organization later expanded into the
Air Crash Victims Family Group to support families affected by other aviation disasters. In 1996, he contributed to the passage of the
Aviation Disaster Family Assistance Act, which assigned the National Transportation Safety Board (NTSB) and the
American Red Cross the responsibility of coordinating support for families of the victims of aviation accidents. In 1997, he helped negotiate an international agreement under the
International Civil Aviation Organization (ICAO) that increased the liability limit for airlines in international crashes from to per passenger, reducing the need for families to prove airline misconduct in court. In 1992, Ephraimson-Abt led a delegation of KAL 007 victims' families to
Moscow, where then
President of Russia Boris Yeltsin provided them with KAL 007’s transcripts. The transcript revealed that KAL 007 remained airborne for several minutes after being struck by two Soviet air-to-air missiles before crashing into the sea. This information informed subsequent legal actions by clarifying the sequence of events. In 1997, Ephraimson-Abt's family was awarded in a U.S. District Court case in
Uniondale, New York, against Korean Air Lines. Ephraimson-Abt stated that the financial settlement, while substantial, could not address the Korean Air Lines's failure to recover victims' remains or provide timely information to families. ==Personal life==