Airworthiness Directives; Bombardier-Rotax GmbH Type 912 F, 912 S and 914 F Series Reciprocating Engines

Summary

Bombardier-Rotax GmbH has issued an airworthiness directive (AD) for its Type 912 F, 912 S, and 914 F series reciprocating engines, requiring venting of the lubrication system and inspection of the valve train to prevent engine failures. The directive follows reports of several in-flight failures, leading to forced landings.