Only if resident in the EU. Ringo is a US citizen spendig time in the CR. Unless his residency moves to the CR, then he will not need to have EASA pilot qualifications.
If he is living and paying taxes in CR then he would be a resident (regardless of also having to file US tax returns on worldwide income).
If he is there intermittently and returning to the US more often than being in the CR - then he would not be wanting to ship an aircraft over - would he?
Ringo55
Am I to understand that it would mean to get at least the US "green card"? If so, some of us know how "easy" that is.
What is the relevance of that comment ?
You say you are a US citizen so what has a I-551 got to do with it?