Airworthiness Directive · Amendment 39-10562 · Stemme GmbH & Co. KG Models S10 and S10-V Sailplanes.
Stemme GmbH & Co. KG Models S10 and S10-V Sailplanes.
Model S10 (serial numbers 10-12 through 10-60), and Model S10-V (serial numbers 14-002 through 14-022) and transformed Model S10-V (serial numbers 14-012M to 14-060M) sailplanes, certificated in any category.
This amendment adopts a new airworthiness directive (AD) that applies to certain Stemme GmbH & Co. KG (Stemme) Models S10 and S10-V sailplanes. This AD requires replacing the fuel filter if it is contaminated, inserting a revision to the Limitations Section of the flight manual, and inspecting the engine valve shafts for brownish- black sticky residue. If a residue is found on the valve shafts, this action will require cleaning the engine. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. The actions specified by this AD are intended to prevent engine valve malfunction, which could cause engine failure during flight and loss of control of the sailplane.
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.
Aircraft
