This class action suit by a group of flight attendants is considered by many in the tobacco control field as a key milestone that made the master settlement agreement possible.

The CDC had only indicated that second hand smoke was a hazard to nonsmokers in 1985, but the flight attendants were a perfect example of the outcomes associated with exposure to secondhand smoke.

http://www.nytimes.com/1996/01/05/us/court-clears-way-for-flight-attendants-sue-tobacco-companies-onsecondhand-smoke.html

ETA: the link to the org created by the attendants who won the case: http://www.famri.org/core/