Airworthiness Directive · Amendment 39-17272 · Powerplant
Stemme GmbH & Co. KG Powered Sailplanes
This AD applies to Stemme GmbH & Co. KG Models S10, S10-V, and S10-VT powered sailplanes, all serial numbers, certificated in any category.
We are adopting a new airworthiness directive (AD) for all Stemme GmbH & Co. KG Models S10, S10-V, and S10-VT powered sailplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as unapproved rubber hoses installed in the engine fuel, oil, and cooling systems, which could lead to a system leak and result in an engine fire. We are issuing this AD to require actions to address the unsafe condition on these products.
Unless already done, do the following actions:
(1) If, on January 7, 2013 (the effective date of this AD), the date of manufacture of the sailplane is less than five years old, before further flight after January 7, 2013 (the effective date of this AD), review the sailplane's maintenance records/logbook for evidence as to whether the engine fuel, oil, and cooling systems rubber hoses have been replaced since new. Based on this review, if:
(i) There is no maintenance records/logbook evidence, i.e. logbook entry, that the engine fuel, oil, and cooling systems rubber hoses have been replaced since new, before further flight, make a logbook entry showing compliance with this AD.
(ii) There is maintenance records/logbook evidence, i.e. logbook entry, that the engine fuel, oil, and/or cooling systems rubber hoses have been replaced since new, before further flight, review the sailplane's maintenance records/logbook for current documentation of hose conformity through a Declaration of Conformity (DoC) or a European Aviation Safety Agency (EASA) Form 1.
(A) If you can find current documentation of a DoC or an EASA Form 1, before further flight, make a logbook entry showing compliance with this AD.
(B) If you cannot find current documentation of a DoC or an EASA Form 1, before further flight, replace the affected hose(s) with FAA-approved serviceable hoses following Stemme F & D Installation Instruction A34-10-093-01, dated August 13, 2012; or Stemme F & D Installation Instruction A34-10-093-02, dated August 13, 2012, as applicable.
(2) If, on January 7, 2013 (the effective date of this AD), the date of manufacture of the sailplane is five years old or older, before further flight after January 7, 2013 (the effective date of this AD), review the sailplane's maintenance records/logbook for evidence of the date the engine fuel, oil, and cooling systems rubber hoses were last replaced and for documentation of hose conformity through a DoC or a EASA Form 1. Based on this review, if:
(i) There is maintenance records/logbook evidence, i.e. logbook entry, that the installed engine fuel, oil, and cooling systems rubber hoses are less than five years old and there is current documentation of hose conformity with a DoC or an EASA Form 1, before further flight, make a logbook entry showing compliance with this AD.
(ii) There is maintenance records/logbook evidence, i.e. logbook entry, that the installed engine fuel, oil, and cooling systems rubber hoses are less than five years old, but there is no current documentation of hose conformity with a DoC or an EASA Form 1, before further flight, replace the affected hoses with FAA-approved serviceable hoses following Stemme F & D Installation Instruction A34-10-093-01, dated August 13, 2012; or Stemme F & D Installation Instruction A34-10-093-02, dated August 13, 2012, as applicable.
(iii) There is maintenance records/logbook evidence, i.e. logbook entry, that the installed engine fuel, oil, and cooling systems rubber hoses are five years old or more than five years old, before further flight, replace the hoses with FAA-approved serviceable hoses following Stemme F & D Installation Instruction A34-10-093-01, dated August 13, 2012; or Stemme F & D Installation Instruction A34-10-093-02, dated August 13, 2012, as applicable.
(3) As of January 7, 2013 (the effective date of this AD), only install FAA-approved serviceable engine fuel, oil, and cooling systems rubber hoses following Stemme F & D Installation Instruction A34-10-093-01, dated August 13, 2012; or Stemme F & D Installation Instruction A34-10-093-02, dated August 13, 2012, as applicable, and that have a current documentation of hose conformity, i.e., DoC or EASA Form 1.
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.
