https://www.miamiflightacademy.com//wp-content/uploads/2014/11/MiamiFlightAcademy.png00Miami Flight Academyhttps://www.miamiflightacademy.com//wp-content/uploads/2014/11/MiamiFlightAcademy.pngMiami Flight Academy2018-05-11 15:57:072018-05-11 15:57:08When are non-rechargeable batteries of an emergency locator transmitter (ELT) required to be replaced?