The passenger licence had apparently been granted by Estonian authorities "by mistake", but it had not been cancelled before, because the planes had not been used for scheduled passenger flights.
Lisensi penumpang telah mendapat izin oleh otoritas Estonia "karena kesalahan", tetapi lisensi tersebut tidak pernah dicabut sebelumnya, karena pesawatnya tidak pernah dipakai untuk penerbangan penumpang.