{"title":"S12 Airworthiness Directives","description":"","products":[{"product_id":"faa-ad-2018-03-16","title":"S10\/12 FAA AD Front Gear Wheel","description":"\u003cp\u003eDocket No. FAA-2017-0952; Product Identifier 2017-CE-028-AD; Amendment 39-19189; AD 2018-03-16\u003c\/p\u003e\n\u003cp\u003eWe are superseding Airworthiness Directive (AD) 2017-10-11 for Stemme AG Model Stemme S10-VT gliders (type certificate previously held by Stemme GmbH \u0026amp; Co. KG). This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and address an unsafe condition on an aviation product. The MCAI describes the unsafe condition as certain propeller front transmission gear wheels having insufficient material strength because of improper heat treatment during manufacturing. We are issuing this AD to require actions to address the unsafe condition on these products and to add Stemme AG Model Stemme S 12 gliders to the Applicability section.\u003c\/p\u003e","brand":"Stemme USA","offers":[{"title":"Default Title","offer_id":39763960004704,"sku":"2018-03-16","price":2.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0253\/8350\/1920\/files\/2018-03-16-1.jpg?v=1693508899"},{"product_id":"faa-ad-2021-23-01","title":"S12 FAA AD ASI Replacement","description":"\u003cp\u003eDocket No. FAA-2021-0716; Project Identifier 2019-CE-023-AD; Amendment\u003cbr data-mce-fragment=\"1\"\u003e39-21799; AD 2021-23-01\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e","brand":"Stemme USA","offers":[{"title":"Default Title","offer_id":39765839315040,"sku":"2021-23-01","price":2.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0253\/8350\/1920\/files\/2021-23-01-1.jpg?v=1693931878"},{"product_id":"faa-ad-2021-26-12","title":"S12 FAA AD MLG Axle Inspection","description":"\u003cp\u003eDocket No. FAA-2021-0842; Project Identifier 2019-CE-032-AD; Amendment\u003cbr data-mce-fragment=\"1\"\u003e39-21871; AD 2021-26-12\u003c\/p\u003e\n\u003cp\u003eThe FAA is adopting a new airworthiness directive (AD) for certain 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 the incorrect installation of an axle connecting the main landing gear (MLG) to the center steel frame. This AD requires inspecting the MLG installation and repairing if necessary. The FAA is issuing this AD to address the unsafe condition on these products.\u003c\/p\u003e","brand":"Stemme USA","offers":[{"title":"Default Title","offer_id":39765839773792,"sku":"2021-26-12","price":2.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0253\/8350\/1920\/files\/2021-26-12-1.jpg?v=1693932126"},{"product_id":"faa-ad-2022-14-11","title":"S12 FAA AD Outer Wing Inspection","description":"\u003cp\u003eDocket No. FAA-2022-0809; Project Identifier MCAI-2022-00711-G; Amendment\u003cbr\u003e39-22116; AD 2022-14-11\u003c\/p\u003e\n\u003cp\u003eThe FAA is adopting a new airworthiness directive (AD) for certain Stemme AG (type certificate previously held by Stemme GmbH \u0026amp; Co. KG) 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 identifies the unsafe condition as a deviation in the construction of the connection of the inner wing to the outer wing, resulting in a wrong positioning of the glass-fiber reinforced plastic (GFRP) blocks. This AD requires inspecting the left-hand (LH) and right-hand (RH) outer wing spars for correct positioning of the GFRP blocks and, if incorrect positioning is found, repairing of the reinforcement blocks. The FAA is issuing this AD to address the unsafe condition on these products.\u003c\/p\u003e","brand":"Stemme USA","offers":[{"title":"Default Title","offer_id":39765842526304,"sku":"2022-14-11","price":2.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0253\/8350\/1920\/files\/2022-14-11-1.jpg?v=1693932736"},{"product_id":"faa-ad-2023-02-3","title":"S10\/12 FAA AD Superseded","description":"\u003cp\u003eDocket No. FAA-2022-1421; Project Identifier MCAI-2022-01088-G; Amendment\u003cbr data-mce-fragment=\"1\"\u003e39-22310; AD 2023-02-03\u003c\/p\u003e\n\u003cp\u003eThe FAA is superseding Airworthiness Directive (AD) 2022-01-09 for certain Stemme AG Model Stemme S 10-VT and Model Stemme S 12 gliders. AD 2022-01-09 required removing the affected freewheel clutch from service and prohibited the installation of affected parts. Since the FAA issued AD 2022-01-09, the European Union Aviation Safety Agency (EASA) superseded its mandatory continuing airworthiness information (MCAI) to amend the definition of an affected part. This AD retains the requirements of AD 2022-01-09 for removing the affected freewheel clutch from service and continues to prohibit the installation of an affected part, and amends the definition of an affected part and clarifies the part installation prohibition. The FAA is issuing this AD to address the unsafe condition on these products.\u003c\/p\u003e","brand":"Stemme USA","offers":[{"title":"Default Title","offer_id":39766042771552,"sku":"2023-02-03","price":2.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0253\/8350\/1920\/files\/2023-02-03-1.jpg?v=1693942840"},{"product_id":"easa-ad-2021-0278r1","title":"S10\/12 EASA AD 12AK Clutch","description":"\u003cp\u003eAugust 11, 2022 | 2021-0278R1\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOccurrences have been reported of unintended slipping of the freewheel clutch (P\/N 12AK) during operation and, subsequently, overheating (burnishing) of the friction pads inside of the clutch. This condition, if not corrected, could lead to total loss of thrust, possibly resulting in loss of control of the powered sailplane. Even after a successful implementation of the recommendations for safe operation of the clutch, published in Stemme AG Service Information P064-8900057\/01, it has been determined that loss of thrust could occur without signs in advance.\u003c\/p\u003e","brand":"Stemme USA","offers":[{"title":"Default Title","offer_id":39766622371936,"sku":"2021-0278R1","price":2.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0253\/8350\/1920\/files\/EASA_AD_2021-0278R1_1-1.jpg?v=1694007447"},{"product_id":"easa-ad-2017-0072-e","title":"MLG Door Pulley Wheel","description":"\u003cp\u003eApril 26, 2017 | 2017-0072-E\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eIt has been determined that, following improper heat treatment during manufacture, the material strength of an identified batch of propeller front transmission gear wheels is insufficient.\u003c\/p\u003e","brand":"Stemme USA","offers":[{"title":"Default Title","offer_id":39766678372448,"sku":"2017-0072-E","price":2.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0253\/8350\/1920\/files\/EASA_EAD_2017-0072-E_1-1.jpg?v=1694008980"},{"product_id":"easa-ad-2019-0082","title":"S12 EASA AD ASI Replacement","description":"\u003cp\u003eApril 12, 2019 | 2019-0082\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDuring a production inspection of a new powered sailplane, an ASI was found with speed markings inconsistent with the approved and published values (begin of the white and green arc). Subsequent investigation of the production records for delivered Stemme S 12 powered sailplanes does not exclude that a similar, non-conforming ASI was installed during production.\u003c\/p\u003e","brand":"Stemme USA","offers":[{"title":"Default Title","offer_id":39766713991264,"sku":"2019-0082","price":2.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0253\/8350\/1920\/files\/EASA_AD_2019-0082_1-1.jpg?v=1694010824"},{"product_id":"easa-ad-2019-0130-e","title":"S12 EASA AD MLG Inspection","description":"\u003cp\u003eJune 7, 2019 | 2019-0130-E\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFollowing a production acceptance flight, the pilot noticed that the aeroplane was in a banked position on the ground. Further examination determined that an axle, connecting the main landing gear (MLG) leg to the center steel frame of the aeroplane, had been installed incorrectly. Other S12 aeroplanes may also be affected by this installation error.\u003c\/p\u003e","brand":"Stemme USA","offers":[{"title":"Default Title","offer_id":39766725328992,"sku":"2019-0130-E","price":2.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0253\/8350\/1920\/files\/EASA_EAD_2019-0130-E_1-1.jpg?v=1694011121"},{"product_id":"easa-ad-2022-0101-e","title":"S12 EASA AD Outer Wing Connection","description":"\u003cp\u003eJune 2, 2022 | 2022-0101-E\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAn occurrence was reported by the production line of the Stemme S12 of finding a deviation in the construction of the connection of the inner wing to the outer wing, resulting in a wrong positioning of the glass-fiber reinforced plastic. (GFRP) blocks in the outer wing spar.\u003c\/p\u003e","brand":"Stemme USA","offers":[{"title":"Default Title","offer_id":39766726049888,"sku":"2022-0101-E","price":2.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0253\/8350\/1920\/files\/EASA_EAD_2022-0101-E_1-1.jpg?v=1694011455"},{"product_id":"s12-easa-ad-fuel-pump-seal-replacement","title":"S12 EASA AD Fuel Pump Seal Replacement","description":"\u003cp\u003e7\/21\/2025 | 2025-0155\u003cbr\u003e\u003cbr\u003eOccurrences of fuel leak were reported originating from the affected location. This condition, if not corrected, could lead to further cases of fuel leak, possibly resulting in fire of the powered sailplane. To address this potential unsafe condition, Stemme issued the SB providing replacement instructions for the affected part. \u003c\/p\u003e","brand":"Stemme AG","offers":[{"title":"Default Title","offer_id":42162905448544,"sku":"2025-0155","price":2.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0253\/8350\/1920\/files\/EASA_AD_2025_0155-1.jpg?v=1753274819"}],"url":"https:\/\/www.stemmeusa.com\/collections\/s12-airworthiness-directives.oembed","provider":"Stemme USA","version":"1.0","type":"link"}