Summary
This document proposes to adopt a new airworthiness directive (AD) that would apply to certain HOAC-Austria (HOAC) Model DV 20 airplanes equipped with ROTAX 912 A3 engines. The proposed action would require replacing the engine electronic modules. The proposed AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Austria. The actions specified by the proposed AD are intended to prevent electromagnetic interference (EMI) on the engine electronic module, which could cause the airplane engine to stop due to the interruption of the airplane's ignition system and result in loss of control of the airplane.