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2015-02-01: Clutch assemblies

FAA order 2015-02-01 is an airworthiness directive in force since February 13, 2015. The FAA's subject line: Clutch assemblies. It names the Technify TAE125-02-114, Technify TAE125-02-99 engines: about 31 aircraft on the U.S. register today across them, though an order usually covers particular versions or serial numbers rather than every one. System: engine.

What it applies to as the FAA lists it

Kind of product
Engine
Makes
Technify Motors GmbH
Models
TAE 125-01, TAE 125-02-99
Engine series
Technify TAE125-02-114 30 aircraft
Technify TAE125-02-99 1 aircraft

Dates and paperwork

In force since
February 13, 2015
Published
January 29, 2015 (signed January 8, 2015)
Docket
FAA-2010-0683
Replaces
2011-23-01
Status
Current
The FAA's document
Read the order on the FAA's site

The FAA's summary their words, unchanged

We are superseding airworthiness directive (AD) 2011-23-01 for all Technify Motors GmbH (TMG) models TAE 125-01 and TAE 125-02-99 reciprocating engines with certain part number (P/N) and serial number (S/N) clutch assemblies installed. AD 2011-23-01 required replacement of certain P/N and S/N clutch assemblies. This AD requires the same actions but [[Page 4765]] expands the population of affected P/N and S/N clutch assemblies. This AD was prompted by an additional report of a clutch assembly that malfunctioned due to disk springs that received a nonconforming heat treatment process. We are issuing this AD to prevent failure of the clutch assembly, which could lead to failure of the engine, in-flight shutdown, and loss of control of the airplane.

The order itself the regulatory text, as published

Show the full text (5,540 characters)
Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends part 39 of the Federal Aviation Regulations (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 removing airworthiness directive (AD) 2011-23-01, Amendment 39-16852 (76 FR 68636, November 7, 2011), and adding the following new AD: 2015-02-01 Technify Motors GmbH (Type Certificate previously held by Thielert Aircraft Engines GmbH): Amendment 39-18065; Docket No. FAA- 2010-0683; Directorate Identifier 2010-NE-25-AD. (a) Effective Date This AD is effective February 13, 2015. (b) Affected ADs This AD supersedes AD 2011-23-01, Amendment 39-16852 (76 FR 68636, November 7, 2011). (c) Applicability This AD applies to Technify Motors GmbH (TMG) models TAE 125-01 and TAE 125-02-99 reciprocating engines, with a clutch assembly part number (P/N) listed in paragraphs (c)(i) through (c)(v) of this AD, and with a serial number (S/N) listed in either TMG Service Bulletin (SB) No. TM TAE 125-0021, Revision 2, dated October 13, 2014, or Thielert Aircraft Engines GmbH (TAE) SB No. TM TAE 125-1011 P1, Revision 2, dated August 31, 2011, installed. (i) P/N 02-7210-11001R11 (ii) P/N 02-7210-11001R11-AT (iii) P/N 02-7210-11001R13 (iv) P/N 05-7211-K006001 (v) P/N 05-7211-K006002 (d) Unsafe Condition This AD was prompted by TMG identifying 40 additional S/N clutch assemblies with nonconforming disk springs for TMG TAE 125-01 reciprocating engines. We are issuing this AD to prevent failure of the clutch assembly, which could lead to failure of the engine, in- flight shutdown, and loss of control of the airplane. (e) Compliance Comply with this AD within the compliance times specified, unless already done.After the effective date of this AD: (1) For engines with affected clutch assemblies that have accumulated 100 hours time since new (TSN) or more, replace the clutch assembly before further flight. (2) For engines with affected clutch assemblies that have accumulated less than 100 hours TSN, replace the clutch assembly before accumulating 100 hours TSN. (f) Installation Prohibition After the effective date of this AD, do not install onto any airplane any engine having a clutch assembly, P/N 02-7210-11001R11, P/N 02-7210-11001R11-AT, P/N 02-7210-11001R13, P/N 05-7211-K006001, or P/N 05-7211-K006002, installed, that has an S/N listed in TMG SB No. TM TAE 125-0021, Revision 2, dated October 13, 2014, or in TAE SB No. TM TAE 125-1011 P1, Revision 2, dated August 31, 2011. (g) Credit for Previous Actions If before the effective date of this AD you replaced an affected clutch assembly with a clutch assembly not listed in this AD, or with one not listed in either TMG SB No. TM TAE 125-0021, Revision 2, dated October 13, 2014, or TAE SB No. TM TAE 125-1011 P1, Revision 2, dated August 31, 2011, then you met the requirements of paragraph (e) of this AD and no further action is required to comply with this AD. (h) Alternative Methods of Compliance (AMOCs) The Manager, Engine Certification Office, may approve AMOCs for this AD. Use the procedures found in 14 CFR 39.19 to make your request. You may email your request to: [email protected]. (i) Related Information (1) For more information about this AD, contact Christopher McGuire, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7120; fax: (781) 238-7199; email: [email protected]. (2) Refer to MCAI European Aviation Safety Agency AD 2014-0232, dated October 22, 2014 and corrected on November 4, 2014, for more information. You may examine the MCAI in the AD docket onthe Internet at http://www.regulations.gov by searching for and locating it in Docket No. FAA-2010-0683. (j) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. (3) The following service information was approved for IBR on February 13, 2015. (i) Technify Motors GmbH (TMG) Service Bulletin (SB) No. TM TAE 125-0021, Revision 2, dated October 13, 2014. (ii) Reserved. (4) The following service information was approved for IBR on November 22, 2011. (i) Thielert Aircraft Engines GmbH (TAE) SB No. TM TAE 125-1011 P1, Revision 2, dated August 31, 2011. (ii) Reserved. (5) For TMG and TAE service information identified in this AD, contact Technify Motors GmbH, Platanenstrasse 14, D-09356 Sankt Egidien, Germany; phone: +49-37204-696-0; fax: +49-37204-696-55; email: engines.com">[email protected]. (6) You may view this service information at 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. (7) You may view this service information at the National Archives and Records [[Page 4767]] 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.

Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of October 23, 2026. Connections as data: /graph/directive/2015-02-01.json · aircraft systems.