Airworthiness Directive · Amendment 39-18713 · Engine--fuel and control
Various Aircraft Equipped With BRP-Powertrain GmbH & Co KG 912 A Series Engine
This AD applies to all serial numbers (S/N) of the airplanes listed in table 1 of paragraph (c) of this AD, certificated in any category, that incorporate one of the following:
(1) A BRP-Powertrain GmbH & Co KG (formerly Rotax Aircraft Engines) 912 A series engine having a serial number with a carburetor part number (P/N) and S/N listed in table 2 of paragraph (c) of this AD, installed as noted, in cylinder head position 1 through 4; or
(2) an engine that, after May 8, 2016, has had an affected float, P/N 861185, installed in service as part of the airframe. Affected floats were initially delivered between May 9, 2016, and July 17, 2016, and do not have three dots stamped on the surface, as shown in paragraph 3.3) of the Accomplishment/Instructions in Rotax Aircraft Engines BRP Alert Service Bulletin ASB-912-069R1/ASB-914-051R1 (co-published as one document), Revision 1, dated July 22, 2016. A certification document (e.g., Form 1), delivery document or record of previous installation of the float are acceptable to determine an initial delivery on or before May 8, 2016.
| 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, 912 A3 |
| Engine | Cylinder position | Carburetor P/N and S/N |
|---|---|---|
| 912A1, 912A2, 912A3, 912A4 | 1 or 3 | P/N 892500—S/Ns 161138 through 161143, 161483 through 161490, 161493 through 161507, 161516 through 161518, and 161526. |
| 2 or 4 | P/N 892505—S/Ns 162193, 162194, 162196 through 162199, and 162205. |
We are adopting a new airworthiness directive (AD) for various aircraft equipped with a BRP-Powertrain GmbH & Co KG (formerly Rotax Aircraft Engines) 912 A series engine. 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 a manufacturing defect found in certain carburetor floats where an in-flight engine shutdown and forced landing could occur when the affected cylinder had reduced or blocked fuel supply. 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 25 hours time-in-service after December 23, 2016 (the effective date of this AD) or within the next 30 days after December 23, 2016 (the effective date of this AD), whichever occurs first, replace all affected floats with a serviceable float following paragraph (3) Accomplishment/Instructions in Rotax Aircraft Engines BRP Alert Service Bulletin ASB-912-069R1/ASB-914-051R1 (co-published as one document), Revision 1, dated July 22, 2016.
(2) As of December 23, 2016 (the effective date of this AD), do not install a float, P/N 861185, that does not have three dots stamped on the surface, as shown in paragraph (3.3) of the Accomplishment/Instructions in Rotax Aircraft Engines BRP Alert Service Bulletin ASB-912-069R1/ASB-914-051R1 (co-published as one document), Revision 1, dated July 22, 2016.
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.
