AD 2021-23-01 Requires Inspecting The ASI Markings...

The FAA is adopting a new airworthiness directive (AD) for all Stemme AG Model Stemme S 12 gliders. This AD was prompted by 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 an airspeed indicator (ASI) with speed markings inconsistent with the approved and published values. This AD requires inspecting the ASI markings and, depending on findings, either replacing the ASI or amending the existing aircraft flight manual (AFM) until the ASI is replaced. The FAA is issuing this AD to address the unsafe condition on these products. This

AD 2021-24-19 Requires Updating The ECU Software

The FAA is adopting a new airworthiness directive (AD) for all DG Flugzeugbau GmbH Model DG-500MB and DG-1000M gliders with a Solo Kleinmotoren GmbH Solo Model 2625 02i engine installed. This AD was prompted by 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 an error in the engine control unit (ECU) software. This AD requires updating the ECU software. The FAA is issuing this AD to address the unsafe condition on these products. This AD is effective January 27, 2022.