Airworthiness Directive · Amendment 39-14874 · Stemme GmbH & Co. KG Model S10-VT Gliders
Stemme GmbH & Co. KG Model S10-VT Gliders
This AD applies to Model S10-VT gliders, serial numbers 11-001 through 11-104, certificated in any category.
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from 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:
Prior to further flight as of January 29, 2007 (the effective date of this AD), unless already done, do the following actions.
(1) Replace the EVANS NPG+ cooling liquid in accordance with the instructions of Stemme F&D Service Bulletin A31-10-076 Am. Index: 01.a, dated October 9, 2006;
(2) Amend the Limitations and Normal Procedures Sections of the Airplane Flight Manual (AFM) to include the temporary operation limit of the cylinder head temperature to 120 °C/248 °F. This may be accomplished by inserting a copy of this AD into the AFM, affecting pages 2-3, 2-6, and 4-12;
(3) Apply two red lines on the Cylinder Head Temperature Gauge for the L/H and R/H cylinder head temperature at 120 °C/248 °F; and
(4) Replace the radiator cap part number 922075 (0.9 bar/13 psi) (or FAA approved equivalent) with a new radiator cap part number 922070 (1.2 bar/18 psi) (or FAA approved equivalent). Rotax Aircraft Engines Service Instruction SI-25-1997 R8 and Rotax Service Bulletin Sb-914-029 R2 reference this requirement.
Note: This AD differs from the MCAI and/or service information by adding the action to replace the radiator cap.
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.
