AD 2013-17-04 Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engine

Makes named: diamond, rotax. Read the applicability below — it usually turns on serial or part numbers too.

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. Table 1 of Paragraph (c)—Affected Airplanes 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

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 following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, Standards Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to ATTN: Sarjapur Nagarajan, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4145; fax: (816) 329-4090; email: sarjapur.nagarajan@faa.gov . Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. (2) Airworthy Product: For any requirement in this AD to obtain corrective actions from a manufacturer or other source, use these actions if they are FAA-approved. Corrective actions are considered FAA-approved if they are approved by the State of Design Authority (or their delegated agent). You are required to assure the product is airworthy before it is returned to service.

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, which could increase the oil consumption and result in engine stoppage. We are issuing this AD to detect and correct excessive oil consumption, which could result in engine stoppage.

None.