study group on unmanned free balloons
дослідницька група з безпілотних вільних аеростатів
дослідницька група з безпілотних вільних аеростатів
accident-free flying / mishap-free flying
mishap-free flying / accident-free flying
accident data reporting study group
aerodrome meteorological observing systems study group
aeronautical data modeling study group
aircraft type designation study group
automatic air reporting study group
aviation medicine study group on cardiovascular requirements
aviation medicine study group on visual requirements
elimination of ambiguity in radiotelephony call signs study group
hazards at accident sites study group
study group on aerodrome surface wind measurement requirements
study group on aircraft accidents in private aviation
study group on all-freight services in Europe
study group on automatic dependent surveillance
study group on certificates of airworthiness multilateral agreement