HelicoptersC/NEstablished 1992, Czech DSA (Delta System Air) provides general helicopter services such as medical contracts, air rescue, taxi, maintenance, sales and training school. List of Helicopter Operators Login to Edit Rotary Wing Aircraft UnitCreatedDisband DSA? -- Bases and Locations Login to Edit Base / HeliportUnits on this Location HEMS Ústí nad LabemDSA HEMS Hradec KrálovéDSA LiberecDSA Model Types Login to Edit ModelDel'dFromTo EC EC120B2008 EC EC1352002