Nope - no idea.
However, it would seem a timely opportunity to remind all, that no matter what visas/approvals/authorities (whatever) anybody holds - it's still at the sole discretion of the immigration guys as to whether he/she/they will allow you to enter the USA - and, if the pilot is subject to FAA flight test, then it's at the sole discretion of the individual examiner as to whether they will conduct the flight test, or not.
The actual visas/qualifications are secondary to the individuals personal choice.