America West, AirTran and US Airways all settled with AFA on the eve of, or a few minutes after, the end of a 30-day cooling-off period in the 1990s. AFA flight attendants at Midwest Express (now Midwest Airlines), completed a cooling-off period without reaching agreement on a first contract in 2002. After three weeks of a CHAOS campaign, and on the eve of CHAOS strikes, management agreed to terms that were ratified by the flight attendants. United Airlines flight attendants used the threat of CHAOS to leverage their negotiations during the airline's bankruptcy, succeeding in doubling the value of the replacement retirement plan management had proposed.