Which is true relating to Airworthiness Directives (AD’s) ? 04/06/2018/in Commercial Pilot Airplane, Regulations /by Miami Flight Academy https://www.miamiflightacademy.com//wp-content/uploads/2014/11/MiamiFlightAcademy.png 0 0 Miami Flight Academy https://www.miamiflightacademy.com//wp-content/uploads/2014/11/MiamiFlightAcademy.png Miami Flight Academy2018-06-04 15:37:072018-06-04 15:37:07Which is true relating to Airworthiness Directives (AD's) ?