AD 2023-17-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | Various | Airworthiness Directives; BRP-Rotax GmbH & Co KG (Formerly BRP-POWERTRAIN GMBH & CO KG and Bombardier-Rotax GmbH) Engines and Various Aircraft |
Unsafe Condition
Surface abnormalities on the propeller shaft, caused by a deviation in the machining process, could lead to increased wear of the propeller shaft bearings, which could result in failure of the propeller shaft bearings, propeller shaft, and engine. This could lead to engine in-flight shutdown and, for single-engine aircraft, an emergency landing or loss of control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Initial and repetitive inspections of the magnetic plug for the accumulation of metal chips to assess the condition of the propeller gearbox for wear of the propeller shaft bearings. Removal of the affected propeller shaft from service and replacement with a part eligible for installation as a terminating action, either immediately or at a certain time depending on inspection findings. Prohibition of the installation of the affected propeller shaft on any engine.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 flight hours after the effective date of this AD.
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Affected Aircraft
BRP-Rotax GmbH & Co KG Model 912 F2, 912 F3, 912 F4, 912 iSc2 Sport, 912 iSc3 Sport, 912 S2, 912 S3, 912 S4, 914 F2, 914 F3, and 914 F4 engines; and Model 912 A, 912 A2, and 912 A3 engines included as part of the type design for various aircraft, including Aeromot-Indústria Mecânico-Metalúrgica Ltda Model AMT-200 (Super Ximango), Diamond Aircraft Industries Model HK 36 R 'SUPER DIMONA', Diamond Aircraft Industries GmbH Models HK 36 TC and HK 36 TS, Diamond Aircraft Industries Inc. Model DA20-A1, HOAC-Austria Model DV 20 KATANA, Magnaghi Aeronautica S.p.A Model Sky Arrow 650 TC, and SCHEIBE-Flugzeugbau GmbH Model SF 25C aircraft.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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