Why the stutter (for for)?

I was asking because I (used to) work at JFK and I was wondering if it was a crew issue or was ATC at fault. I know they get really busy up there in the tower, but that is not a place you want to make a mistake, because if you do it can cost lives.

Regarding the Freedom missing the turn: He blamed an FMS failure on takeoff as the reason the plane did not make the turn. If this is so, I now know why Comair does not allow the FMS to be used for departures out of JFK (we have to do it in green data, using the vor's).