Designation:F2909−14StandardPracticeforMaintenanceandContinuedAirworthinessofSmallUnmannedAircraftSystems(sUAS)1ThisstandardisissuedunderthefixeddesignationF2909;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThisspecificationestablishesthestandardpracticeforthemaintenanceandcontinuedairworthinessofsUAS.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2F2908SpecificationforAircraftFlightManual(AFM)foraSmallUnmannedAircraftSystem(sUAS)F3005SpecificationforBatteriesforUseinSmallUn-mannedAircraftSystems(sUAS)3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1commandandcontrol(C2)link(s),n—safety-criticalradio-frequency(RF)link(s)betweengroundcontrolstation(GCS)andthesmallunmannedaircraft(sUA).3.1.2flightcontrolsystem,FCS,n—composedofsystemcomponentsintendedtotakeGCScommandsviaaC2linkandcontrolflightcontrolsurfacesandpropulsionsystems.3.1.3groundcontrolstation,GCS,n—aland-orsea-basedcontrolcenterthatprovidesthefacilitiesforhumancontrolofsUA.3.1.4manufacturer,n—entityresponsibleforassemblyandintegrationofcomponentsandsubsystemstocreateasafeoperatingsUAS.3.1.5propulsionsystem,n—consistsofoneormorepowerplants(forexample,acombustionengineoranelectricmotorand,ifused,apropellerorrotor)togetherwiththeassociatedinstallationoffuelsystem,controlandelectricalpowersupply(forexample,batteries,electronicspeedcontrols,fuelcells,orotherenergysupply).3.1.6shallversusshouldversusmay,v—useoftheword“shall”impliesthataprocedureorstatementismandatoryandmustbefollowedtocomplywiththisstandard,“should”impliesrecommended,and“ma...
