Airworthiness Directive · Amendment 39-17568 · Engine-- reciprocating
Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engine
This AD applies to all serial numbers of the airplanes listed in table 1 of paragraph (c) of this AD, that are:
(1) equipped with a Rotax Aircraft Engines 912 A series engine with a part number (P/N) 623682 cylinder head assembly (2/3) installed; and
(2) certificated in any category.
| Type certificate holder | Aircraft model | Engine model |
|---|---|---|
| Aeromot-Indústria Mecânico-Metalúrgica Ltda | AMT-200 | 912 A2 |
| Diamond Aircraft Industries | HK 36 R “Super Dimona” | 912 A |
| Diamond Aircraft Industries GmbH | HK 36 TS and HK 36 TC | 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 |
We are adopting a new airworthiness directive (AD) for various aircraft equipped with Rotax Aircraft Engines 912 A Series Engine. This AD results from mandatory continuing airworthiness information (MCAI) issued by the aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as oil leaks in the intake channel in the area of the valve guide on some cylinder heads could increase the oil consumption and result in engine stoppage. We are issuing this AD to require actions to address the unsafe condition on these products.
Unless already done, do the following actions.
(1) Within the next 5 hours time-in-service (TIS) after September 24, 2013 (the effective date of this AD) or within the next 20 days after September 24, 2013 (the effective date of this AD), whichever occurs first, inspect the cylinder head assembly of cylinder 2 and 3 (2/3) for excessive oil consumption following Section 3 of Rotax Aircraft Engines BRP Alert Service Bulletin ASB-912-062R2 and ASB-914-044R2 (co-published as one document), Revision 2, dated May 29, 2013.
(2) During the inspection required in paragraph (f)(1) of this AD, if excessive deposits (oil or carbon) are found on the spark plugs, before further flight, replace the affected cylinder head assembly with a serviceable one. Do the replacement following Section 3 of Rotax Aircraft Engines BRP Alert Service Bulletin ASB-912-062R2 and ASB-914-044R2 (co-published as one document), Revision 2, dated May 29, 2013.
(3) As of September 24, 2013 (the effective date of this AD), only install an engine affected by this AD provided it has been inspected as specified in paragraph (f)(1) of this AD and corrected as specified in paragraph (f)(2) of this AD.
(4) As September 24, 2013 (the effective date of this AD), any spare cylinder head assembly P/N 623682 installed must be inspected within 5 hour TIS after installation following Section 3 of Rotax Aircraft Engines BRP Alert Service Bulletin ASB-912-062R2 and ASB-914-044R2 (co-published as one document), Revision 2, dated May 29, 2013, and corrected as necessary.
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.
