AirTran Airways (Orlando and Atlanta) is now studying possible replacements for its aging Boeing 717-200 fleet. The carrier has 18 to 20 717s that are 9 to 10 years old. It would like to replace the oldest aircraft in five years.

News link:

www.flightglobal.com/articles/2009/10/07/333193/airtran-studies-717-fleet-replacements.html