I have to say that whilst this thread is useful and the advice applicable to some students some of the time, there are a number of factual inaccuracies. (eg part 61 training can be done on a visa, you don't need a part 141 school) There are other threads here on pprune that do discuss the more specific details (to death in some cases) and the important questions of detail can be viewed elsewhere on here. This sticky also doesn't yet address who needs a visa and when and if a visa is required which are important points. It is perfectly feasible to do certain training without a visa, it is also feasible to do some training on a B1 or B2 visa. (I have done both of these)
"You will need to contact the school, such as Phoenix East Aviation " - Check 6 - it sounds like you are connected to that school/advertising, but actually it's just a cut and paste of the original article - you might want to edit that !
A good place for further research is here - whilst it ostensibly covers jaa ppl in USA it is of course the same in visa terms whether one is doing JAA/EASA or FAA training.
http://www.pprune.org/private-flying...-part-1-a.html
There is also a mixed bag of advice, some right and some wrong here
http://www.pprune.org/professional-p...hools-usa.html
The specifics of TSA approval likewise have been done to death. In summary, and in relevance to training (not type ratings) on smaller (below 12500 lbs) aircraft it is required for the issue of an initial private, recreational or sport pilot FAA license, a multi rating and an Instrument Rating. Not required for Commercial and not required for CFI.
https://www.flightschoolcandidates.g...19147-0337.pdf