Airworthiness Directive · Amendment 39-16506 · Engine
Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engines
This AD applies to all serial numbers (S/N) of the following aircraft, equipped with a Rotax Aircraft Engines 912 A series engine with a crankcase assembly S/N up to and including S/N 27811, certificated in any category:
| Type certificate holder | Aircraft model | Engine model |
|---|---|---|
| Aeromot-Industria Mecanico Metalurgica ltda | AMT-200 | 912 A2 |
| Diamond Aircraft Industries | HK 36 R “SUPER DIMONA” | 912 A |
| Diamond Aircraft Industries GmbH | HK 36 TS HK 36 TC | 912 A3 912 A3 |
| Diamond Aircraft Industries Inc. | DA20-A1 | 912 A3 |
| HOAC-Austria | DV 20 KATANA | 912 A3 |
| Iniziative Industriali Italiane S.p.A. | Sky Arrow 650 TC | 912 A2 |
| SCHEIBE-Flugzeugbau GmbH | SF 25C | 912 A2 or 912 A3 |
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
Unless already done, do the following actions:
(1) Within the next 50 hours time-in-service (TIS) after December 22, 2010 (the effective date of this AD), inspect the engine crankcase for cracks following Rotax Aircraft Engines Service Bulletin SB-912-029 R3, dated July 11, 2006. Repetitively thereafter do the inspection at each 100-hour, annual, or progressive inspection or within 110 hours TIS since last inspection, whichever occurs first.
(2) If cracks in the engine crankcase are found during any inspection required by paragraph (f)(1) of this AD, before further flight, replace the crankcase following Rotax Aircraft Engines Service Bulletin SB-912-029 R3, dated July 11, 2006.
(3) Installing a crankcase that has a S/N above 27811 terminates the inspection requirements of paragraph (f)(1) of this AD.
Note 1: The service information is a combined service bulletin for both the 912 type (Service Bulletin SB-912-029 R3, dated July 11, 2006) and 914 type (Service Bulletin SB-914-018, Revision 3, dated July 11, 2006) engines. This AD does not reference Service Bulletin SB-914-018, Revision 3, dated July 11, 2006, because this AD does not apply to the 914 series engines. This unsafe condition for the 914 type engines is the subject of AD 2010-20-23.
Note 2: This AD differs from the MCAI and/or service information as follows: No differences.
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.
