Airworthiness Directive · Amendment 39-18690 · Flight controls
Schempp-Hirth Flugzeugbau GmbH Gliders
This AD applies to the following Schempp-Hirth Flugzeugbau GmbH model and serial number gliders, certificated in any category:
(1) Model Discus-2a, serial numbers 1 through 253;
(2) Model Discus-2b, serial numbers 1 through 255;
(3) Model Discus-2c, serial numbers 1 through 61;
(4) Model Discus 2cT, serial numbers 1 through 127;
(5) Model Ventus-2a, serial numbers 1 through 178; and
(6) Model Ventus-2b, serial numbers 1 through 175.
We are adopting a new airworthiness directive (AD) for Schempp-Hirth Flugzeugbau GmbH Models Discus-2a, Discus-2b, Discus-2c, Discus 2cT, Ventus-2a, and Ventus-2b gliders. 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 insufficient overlap of the airbrake panels. We are issuing this AD to correct the unsafe condition on these products.
Unless already done, do the following actions in paragraphs (f)(1) and (2) of this AD:
(1) Within the next 40 days after December 1, 2016 (the effective date of this AD), inspect the overlap of the airbrake panels for a minimum overlap of at least 3 millimeters following Action 1 in Schempp-Hirth Flugzeugbau GmbH Technische Mitteilung Nr. (English translation: Technical Note No.) 349-39, 360-29, 825-55, 863-22, dated January 29, 2016 (published as a single document); and Action 1 in the associated Arbeitsanweisung (English translation: Working instructions) for Technische Mitteilung Nr. (English translation: Technical Note No.) 349-39, 360-29, 825-55, 863-22, Ausgabe (English translation: Issue) 1, Datum (English translation: Dated) January 22, 2016 (published as a single document).
Note 1 to paragraph (f)(1) and (2) of this AD: This service information contains German to English translation. The EASA used the English translation in referencing the document. For enforceability purposes, we will refer to the Schempp-Hirth Flugzeugbau GmbH service information as it appears on the document.
(2) If, during the inspection required in paragraph (f)(1) of this AD, the overlap on the airbrake panels is found to be less than 3 millimeters, before further flight, install eccentric bushings and make adjustments following Action 2 in Schempp-Hirth Flugzeugbau GmbH Technische Mitteilung Nr. (English translation: Technical Note No.) 349-39, 360-29, 825-55, 863-22, dated January 29, 2016 (published as a single document); and Action 2 in the associated Arbeitsanweisung (English translation: Working instructions) for Technische Mitteilung Nr. (English translation: Technical Note No.) 349-39, 360-29, 825-55, 863-22, Ausgabe (English translation: Issue) 1, Datum (English translation: Dated) January 22, 2016 (published as a single document).
Note 2 to paragraph (f)(2) of this AD: The Schempp-Hirth Flugzeugbau GmbH Technische Mitteilung Nr. (English translation: Technical Note No.) 349-39, 360-29, 825-55, 863-22, dated January 29, 2016 (published as a single document) includes four German language drawings that you may use for additional information, but the drawings are not required to comply with this AD.
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.
