2005-26-11: Starter ring gear to the lower drive belt pulley adapter.

2005-26-11 DG Flugzeugbau GmbH: Amendment 39-14432; Docket No. FAA- 2005-22206; Directorate Identifier 2005-CE-45-AD. When Does This AD Become Effective? (a) This AD becomes effective on February 7, 2006. What Other ADs Are Affected by This Action? (b) None. What Sailplanes Are Affected by This AD? (c) This AD affects the following sailplane models and serial numbers that are certificated in any category: Model Serial Nos. (1) DG 800B .. All serial numbers up to and including 8 260, with the exception of 8 247 and 8 258; and Model Serial Nos. (2) DG 500MB All serial numbers up to and including 5E220B15, with the exception of 5E190B5. What Is the Unsafe Condition Presented in This AD? (d) This AD is the result of bolt failure in the connection of the starter ring gear to the drive belt pulley adapter. The bolt heads may shear off and the bolt heads could fall into the engine compartment. The actions specified in this AD are intended to prevent the bolts currently used to connect the starter ring gear to the drive belt pulley adapter from shearing off and the bolt heads falling into the engine compartment. Failure of this connection could render the engine inoperative. Consequently, this failure could lead to loss of control of the sailplane. What Must I Do to Address This Problem? (e) To address this problem, you must do the following: Actions Compliance Procedures (1) Remove the starter ring gear assembly with adapter and lower drive belt pulley. . Within 30 days after February 7, 2006 (the effective date of this AD). Follow DG-Flugzeugbau GmbH Working Instruction No. 1 for TN 873/30, dated June 9, 2004; and Technical Note No. 873/30 and No. 843/22, approved by Luftfahrt-Bundesamt (LBA) on June 29, 2004, and approved by European Aviation Safety Agency (EASA) on July 9, 2004. (2) Modify the connection area where the bolts connect the starter ring gear to the lower drive belt pulley adapter. Within 30 days after February 7, 2006 (the effective date of this AD). Follow DG-Flugzeugbau GmbH Working Instruction No. 1 for TN 873/30, dated June 9, 2004; and Technical Note No. 873/30 and No. 843/22, approved by LBA on June 29, 2004, and approved by EASA on July 9, 2004. (3) Reinstall the starter ring gear assembly with the adapter and lower pulley. Within 30 days after February 7, 2006 (the effective date of this AD). Follow DG-Flugzeugbau GmbH Working Instruction No. 1 for TN 873/30, dated June 9, 2004; and Technical Note No. 873/30 and No. 843/22, approved by LBA on June 29, 2004, and approved by EASA on July 9, 2004. May I Request an Alternative Method of Compliance? (f) You may request a different method of compliance or a different compliance time for this AD by following the procedures in 14 CFR 39.19. Unless FAA authorizes otherwise, send your request to your principal inspector. The principal inspector may add comments and will send your request to the Manager, Standards Office, Small Airplane Directorate, FAA. For information on any already approved alternative methods of compliance, contact Gregory Davison, Glider Project Manager, ACE-112, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4130; facsimile: (816) 329-4090. Is There Other Information That Relates to This Subject? (g) LBA Airworthiness Directive D-2004-347, dated July 2, 2004; DG-Flugzeugbau GmbH Working Instruction No. 1 for TN 873/30, dated June 9, 2004; and Technical Note No. 873/30 and No. 843/22, approved by LBA on June 29, 2004, and approved by the EASA on July 9, 2004, also address the subject of this AD. Does This AD Incorporate Any Material by Reference? (h) You must do the actions required by this AD following the instructions in DG-Flugzeugbau GmbH Working InstructionNo. 1 for TN 873/30, dated June 9, 2004; and Technical Note No. 873/30 and No. 843/22, approved by LBA on June 29, 2004, and approved by the EASA on July 9, 2004. The Director of the Federal Register approved the incorporation by reference of this service information in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. To get a copy of this service information, contact DG-Flugzeugbau, Postbox 41 20, D-76625 Bruchsal, Federal Republic of Germany; telephone: ++49 7257 890; facsimile: ++45 7257 8922; e-mail: http://www.dg-flugzeugbau.de. To review copies of this service information, go to the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html or call (202) 741-6030. To view the AD docket, go to the Docket Management Facility; U.S. Department of Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-401, Washington, DC 20590-0001 or on the Internet at http://dms.dot.gov. The docket number is FAA-2005-22206; Directorate Identifier 2005-CE-45-AD.