From Ireland, I believe it was automatic recognition before part Fcl for FAA commercial holders working on N reg based from Ireland, now requires validation too.
if you want to work for an Irish carrier then you show up at the counter service by the Irish Aviation Authority in Dublin with employers details , license , medical, aircraft currency and cash.
The extension of a validation is possible if you can prove you are in the conversion process.
Last edited by Star1101; 24th Mar 2018 at 22:24.