Alternative Means of Compliance for FAA AD 2019-13-03 Avidyne AXP340 Transponders and BendixKing/Honeywell International KT74 Transponders On August 27, 2019, the FAA issued AD 2019-13-03 advising of an unsafe condition of some Avidyne AXP340 transponders and BendixKing/Honeywell International KT74 transponders …