Airworthiness directives › 2021-26-12
AD 2021-26-12 Airworthiness Directives; Stemme AG Gliders
Applicability*9
This AD applies to Stemme AG Model Stemme S 12 gliders, serial numbers 12-002 through 12-026, inclusive, certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
(1) Before further flight after the effective date of this AD, visually inspect the MLG left-hand and right-hand legs for proper installation as depicted in Figure 3 of Stemme Service Bulletin No. P062-980037, Revision 00, dated June 5, 2019 (SB P062-980037). (2) If the MLG installation is not as depicted in Figure 3 of SB P062-980037, before further flight, inspect the MLG installation for damage in accordance with the Actions section, Action 2, in SB P062-980037, except you are not required to contact Stemme if there is damage. Instead, repair any damage using a method approved by the FAA or the European Union Aviation Safety Agency (EASA).
Unsafe condition
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 incorrect installation of an axle connecting the main landing gear (MLG) to the center steel frame of the glider. The FAA is issuing this AD to prevent failure of the MLG. The unsafe condition, if not addressed, could result in damage to the glider and possible injury to occupants.
Affected ADs
None.
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