2013-24-06: Engine clutch housing (crankcase assembly)

Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: PART 39--AIRWORTHINESS DIRECTIVES 0 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. Sec. 39.13 [Amended] 0 2. The FAA amends Sec. 39.13 by adding the following new airworthiness directive (AD): 2013-24-06 Thielert Aircraft Engines GmbH: Amendment 39-17680; Docket No. FAA-2013-0561; Directorate Identifier 2013-NE-23-AD. (a) Effective Date This AD becomes effective December 30, 2013. (b) Affected ADs None. (c) Applicability This AD applies to all Thielert Aircraft Engines GmbH TAE 125-01 reciprocating engines. (d) Reason This AD was prompted by a report of engine power loss due to engine coolant contaminating the engine clutch. The design of the engine allows the crankcase assembly opening to be susceptible to contamination from external sources. We are issuing this AD to prevent in-flight engine power loss, which could result in loss of control of, and damage to, the airplane. (e) Actions and Compliance Unless already done, do the following actions. (1) After the effective date of this AD at the next annual or 100-hour inspection, whichever comes first, apply sealant to close the engine clutch housing (crankcase assembly) opening. (2) Thereafter, reapply sealant to the engine clutch housing (crankcase assembly) opening, whenever the sealant is found to be not liquid-tight, or is removed. (3) Guidance on the sealant and application can be found in Thielert Aircraft Engines GmbH Service Bulletin No.TM TAE 125-0022, dated August 8, 2012. (f) Alternative Methods of Compliance (AMOCs) The Manager, Engine Certification Office, FAA, may approve AMOCs to this AD. Use the procedures found in 14 CFR 39.19 to make your request. (g) Related Information (1) For more information about this AD, contact Frederick Zink, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7779; fax: 781-238-7199; email: [email protected]. (2) Refer to MCAI European Aviation Safety Agency AD 2013-0109, dated May 22, 2013, for related information. You may examine the MCAI in the AD docket on the Internet at http://www.regulations.gov/#!documentDetail;D=FAA-2013-0561-0002. (3) Thielert Aircraft Engines GmbH Service Bulletin No. TM TAE 125-0022, dated August 8, 2012, which is not incorporated by reference in this AD, can be obtained from Thielert Aircraft Engines GmbH, using the contact information in paragraph (g)(4) of this AD. (4) For service information identified in this AD, contact Thielert Aircraft Engines GmbH, Platanenstrasse 14 D-09350, Lichtenstein, Germany, phone: +49-37204-696-0; fax: +49-37204-696- 55; email: engines.com">[email protected]. (5) You may view this service information at the FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA. For information on the availability of this material at the FAA, call 781-238-7125. (h) Material Incorporated by Reference None. [[Page 70218]]