http://www4.passur.com/jfk.html
This is the Airport Monitor radar for JFK...didn't see anything on America West 17 on September 15 at 6:05.
Anyone else see something I'm missing?
Maybe it froze on me.
I didn't see a change
after changing the time and date and hitting start.
Check about 6:40, that shows an American West flight, with last two digits "17" departing to the south, making a two segment turn to the west, and then skirting to the north of Philadelphia.