[mad_as_he$$]

Do you still maintain that the entire FAA system runs only on transponder data? If so then you are a nut, the system runs on radar returns also. Because as you just posted if I turned off my transponder in class A airspace things would go crazy. Well if I turn of my IFF then how would they "see" me? If they only use IFF data?

If as you claim the entire system only works on IFF data how did ASR assign the same ID to two different IFF responses and then feed it to PASSUR? One system decided to give the unknown an ID OR it responded the same ID as the AA flight. Either way your argument doesn't work.

You don't think that a cargo plane of under 33,000 pounds could cause this image?

Yes PASSUR uses the 1030 data. So then that means either the FAA assigned the image the same data as the AA flight or PASSUR took an unknown and assigned data to it. Either means something is wrong with the entire system.

[Rokke]

"Do you still maintain that the entire FAA system runs only on transponder data?"

Do me a favor and point out exactly where I said that. Quote me. Point out the exact post.
Look, if you can't even keep facts straight in a single FreeRepublic thread, I can understand why the specifics of this incident are sailing right over your head.

"how did ASR assign the same ID to two different IFF responses and then feed it to PASSUR?"

You have so little idea of what you are talking about that your question doesn't even make sense. Let me just start by telling you that when an ASR system interrogates an IFF transponder, it doesn't assign an ID. It simply reads the ID from the IFF transmitter.

"You don't think that a cargo plane of under 33,000 pounds could cause this image?"

What cargo plane are you thinking about that weighs under 33,000 pounds? And what cargo plane is capable of greater than 6000 ft per minute climb rates?