Airworthiness Directive · Amendment 39-12865 · Bombardier-Rotax GmbH Type 912 F and 914 F Series Reciprocating Engines
Bombardier-Rotax GmbH Type 912 F and 914 F Series Reciprocating Engines
Superseded. A later AD replaced this one: AD 2010-20-23. Comply with the one in force.
This airworthiness directive (AD) is applicable to Bombardier- Rotax GmbH type 912 F series reciprocating engines serial number (SN) 4,412.796, or lower, and 914 F series reciprocating engines SN 4,420.313, or lower. These engines are installed on, but not limited to, Aeromot-Industria Mecanico Metalurgica Itda. model AMT-300, Diamond Aircraft Industries DA20-A1, Diamond Aircraft Industries GmbH Model HK 36 TTS, Iniziative Industriali Italiane S.p.A. Sky Arrow 650 series, and Stemme S10-VT aircraft.
This amendment adopts a new airworthiness directive (AD) that is applicable to certain serial numbers (SN's) of Bombardier-Rotax GmbH type 912 F and 914 F series reciprocating engines. This action requires initial and repetitive visual inspections of the engine crankcase for cracks. This amendment is prompted by reports of several instances of engine crankcases found cracked in service. The actions specified in this AD are intended to prevent oil loss caused by cracks in the engine crankcase, which could lead to in-flight failure of the engine and forced landing.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
