ARGUS TRAQPak data tallies serial-number specific aircraft arrival and departure information on all business jet flights in the US (including Alaska and Hawaii). Business aircraft activity data for September 1 to 30, 2009 vs. September 1 to 30, 2008 show that business aircraft activity is at its highest level since October 2008. TRAQPak data indicates September business aircraft activity increased 2.7% from August 2009. Compared to September 2008, activity is up .4%. ARGUS estimates the percent change of flight activity, rolling month over month, for the last twelve months, is up an average of .71% per month. www.aviationresearch.com