hey, Czech here, local aircraft register is available at
Výpis z leteckého rejstříku (only Czech version works) but there is nothing interesting about aircrafts, just serials etc and you can see not all the fleet belongs to VanAir.
Our local CAA denied info that they are investigating anything. They stated they are not investigating anything simple because it is not their case. They admit they are in contact with UK CAA but it means providing info and consultations. They don't even have a right to investigate anything in this case. Case = so far everything goes around bad landing.
Local AIR ACCIDENTS INVESTIGATION INSTITUTE (which is not CAA) and is involved in such an investigations here said: "yes, we have a report about landing in bad conditions means strong wind, but we don't have any official statement from any side so far, we just know what was on internet"