Sylle 
4K
B Tier
D-CSOS
SOS (likely a medevac/air ambulance operator)
LR45
RKE/EKRK
Bombardier Learjet 45
Copenhagen Airport, Roskilde Denmark’s second-largest airport by movements, serving eastern Denmark and Greater Copenhagen. Traffic includes G/A, business aviation, VIP, air ambulance, private flying, and military operat…