Andrew Sarangan wrote:
Can you cite specific examples of US pilots phrasology causing dangerous
conditions?

no as often it is ignored. Can you imagine if every time non-standard
phraseology is used other pilots are requesting clarification?
One instance where English was not used was when my friend
flying for a major was going into Mexico City. He was the PNF.
The PF on the approach made a sharp turn. My friend asked
what the turn was for. The PF said the controller told the preceding
a/c about a severe windshear alert but the call was in spanish. The
other a/c cancelled their approach. If the
PF didn't understand spanish, it very well could have
been dangerous.

Another instance was living in Germany. I was half way through
my PPL and went flying with a friend of a friend. Looking back,
the guy was a moron. He barely understood English and couldn't
copy the clearance nor follow the clearance out of Salzburg and
then busted the Class B (I think it is B) MUC airspace due to
his lack of English. Although no near miss happened but if
the airspace was more dangerous, it certainly could have been
bad.

Although this is non-US pilots not being fluent in English ATC
phraseology, the same happens the other way for sure.

Gerald Sylvester