FAQs Validation of FAA STCs classified as Basic and limited to one serial numberGeneral Aviation PDF With whom in EASA can I speak about this process? Answer Please use the mailboxes below, as applicable, for any queries regarding this process. GADadmin [at] easa.europa.eu VTOL [at] easa.europa.eu (for VLR and Small Rotorcraft only) Last updated 26/06/2020 Was this helpful? Yes No