2006-22-10: Ffailure in flap actuating circuit

2006-22-10 Schempp-Hirth Gmbh & Co. KG: Amendment 39-14807; Docket No. FAA-2006-25171; Directorate Identifier 2006-CE-35-AD. Effective Date (a) This airworthiness directive (AD) becomes effective December 1, 2006. Affected ADs (b) None. Applicability (c) This AD applies to Models Mini-Nimbus B and Mini-Nimbus HS-7 sailplanes, all serial numbers, that are certificated in any U.S. category. Reason (d) The mandatory continuing airworthiness information (MCAI) states that the aircraft manufacturer has identified, during the daily check after assembling a Mini Nimbus C, a failure in the flap actuating circuit. An investigation showed that the lever at the torsional drive in the fuselage failed at the weld. If not corrected, this condition could lead to a failure in the flap actuating circuit, which could result in reduced controllability of the sailplane. Actions and Compliance (e) Unless already done, do the following except as stated in paragraph (f) below. (1) Within the next 90 days after December 1, 2006 (the effective date of this AD), reinforce the flap drive. (2) Do the reinforcement following Schempp-Hirth Flugzeugbau GmbH. Technical Note No. 286-35/No. 328-13, EASA approved on: July 1, 2005. FAA AD Differences (f) None. Other FAA AD Provisions (g) The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, Standards Staff, FAA, Small Airplane Directorate, ATTN: Gregory Davison, Aerospace Engineer, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4130; fax: (816) 329-4090, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. (2) Return to Airworthiness: When complying with this AD, perform FAA-approved corrective actions before returning the product to an airworthy condition. (3) Reporting Requirements: For any reporting requirement in this AD, under the provisions of the Paperwork Reduction Act, the Office of Management and Budget (OMB) has approved the information collection requirements and has assigned OMB Control Number 2120- 0056. Related Information (h) This AD is related to German AD D-2005-239, Effective Date: July 22, 2005, which references Schempp-Hirth Flugzeugbau GmbH. Technical Note No. 286-35/No. 328-13, EASA approved on: July 1, 2005. Material Incorporated by Reference (i) You must use Schempp-Hirth Flugzeugbau GmbH. Technical Note No. 286-35/No. 328-13, EASA approved on: July 1, 2005, to do the actions required by this AD, unless the AD specifies otherwise. (1) The Director of the Federal Register approved the incorporation by reference of this service information under 5 U.S.C. 552(a) and 1 CFR part 51. (2) For service information identified in this AD, contact Schempp-Hirth, Flugzeugbau GmbH, Postfach 14 43, D-73222 Kirchheim/ Teck, Germany; telephone: ++ 49 7021 7298-0; fax: ++ 49 7021 7298- 199; Web site: http://www.schempp-hirth.com, e-mail: info@schempp-hirth.com. (3) You may review copies at the FAA, Central Region, Office of the Regional Counsel, 901 Locust, Room 506, Kansas City, Missouri 64106; or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html .