13 August 2013
Delta flight 1804 , McDonnell Douglas MD-88 from Detroit to Fort Lauderdale with 126 passengers and 5 crew members it was en route at FL330 near Cincinnati when airplane suffered a cabin pressurization problem.The crew made a rapid descent to safe altitude and diverted to Cincinnati airport for a safe landing
Cincinnati airport
Source
http://www.bizjournals.com/cincinnati/news/2013/08/13/delta-flight-makes-emergency-landing.html