This is the bit I read about licensing.
The pilot of N264DB held an EASA PPL, issued by the CAA in the UK, and an FAA PPL, issued on the basis of his EASA PPL. It is thought that the pilot’s licence and logbook were lost with the aircraft and so the ratings on his licences and their validity, and the extent of his recent flying have not yet been determined.
Can’t see a reference to the pilot’s eyesight, can you point that out ? I’m missing it somewhere.