# AD 2014-17-03: Fuel pump - Type: Airworthiness directive - Status: Current - Products: Technify Motors TAE 125-02-114 and TAE 125-02-99 - Effective: October 2, 2014 - Published: August 28, 2014, 79 FR 51240–51241 - Issued: August 18, 2014 - Issued as: Final rule - Superseded by: Nothing supersedes this AD - Product type: Engine - Amendment: 39-17956 - Docket: FAA-2014-0179 (https://www.regulations.gov/docket/FAA-2014-0179) - Project: 2014-NE-03-AD - Registered aircraft: 76 may be affected, by airframe or engine model (OpenAirDocs) - Official PDF: https://openairdocs.org/files/sha256/93/9b/939bd3ebb18e6acb5bd965aa9629f3b789e78c0a81389fd67fadb66410d27e31 (from https://www.govinfo.gov/content/pkg/FR-2014-08-28/pdf/2014-20451.pdf) - Federal Register: https://www.federalregister.gov/documents/2014/08/28/2014-20451/airworthiness-directives-technify-motors-gmbh-reciprocating-engines - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7F2AD17D8A2A612986257D4200468357.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/2014-17-03 ## Summary We are adopting a new airworthiness directive (AD) for certain Technify Motors GmbH (type certificate previously held by Thielert Aircraft Engines GmbH) TAE 125-02-99 and TAE 125-02-114 reciprocating engines. This AD requires removal of each high-pressure (HP) fuel pump before 300 flight hours (FHs) in service or within 55 FHs after the effective date of the AD, whichever occurs later. This AD was prompted by in-flight shutdowns on airplanes with TAE 125-02 engines. We are issuing this AD to prevent failure of the HP fuel pump, which could result in damage to the engine and damage to the airplane. ## The airworthiness directive 1. The authority citation for part 39 continues to read as follows: 2. The FAA amends § 39.13 by adding the following new airworthiness directive (AD): 2014-17-03 Technify Motors GmbH (Type Certificate previously held by Thielert Aircraft Engines GmbH): Amendment 39-17956; Docket No. FAA-2014-0179; Directorate Identifier 2014-NE-03-AD. ### (a) Effective Date This AD becomes effective October 2, 2014. ### (b) Affected ADs None. ### (c) Applicability This AD applies to TAE 125-02-99 and TAE 125-02-114 reciprocating engines with a high-pressure (HP) fuel pump, part number (P/N) 05-7312-K005301 or P/N 05-7312-K005302. ### (d) Reason This AD was prompted by in-flight shutdowns on airplanes with TAE 125-02 engines. We are issuing this AD to prevent failure of the HP fuel pump, which could result in damage to the engine and damage to the airplane. ### (e) Actions and Compliance Comply with this AD unless already done. Remove each HP fuel pump, P/N 05-7312-K005301 and P/N 05-7312-K005302, before 300 flight hours (FHs) in service or within 55 FHs after the effective date of this AD, whichever occurs later. ### (f) Installation Prohibition After the effective date of this AD, do not install a TAE 125-02-99 or TAE 125-02-114 engine with HP fuel pump, P/N 05-7312-K005301 or P/N 05-7312-K005302, onto any airplane. ### (g) 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. ### (h) Related Information (1) For more information about this AD, contact Kenneth Steeves, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7765; fax: 781-238-7199; email: kenneth.steeves@faa.gov. (2) Refer to MCAI European Aviation Safety Agency AD 2013-0279, dated November 26, 2013, for more information. You may examine the MCAI in the AD docket on the Internet at http://www.regulations.gov/#!searchResults;rpp=25;po=0;s=FAA-2014-0179;fp=true;ns=true. (3) Technify Motors GmbH Service Bulletin No. TM TAE 125-1017 P1, Revision 1, dated September 20, 2013, which is not incorporated by reference in this AD, can be obtained from Technify Motors GmbH using the contact information in paragraph (h)(4) of this AD. (4) For 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: info@centurion.aero. (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. ### (i) Material Incorporated by Reference None. ## Rule preamble ### Dates This AD becomes effective October 2, 2014. ### Addresses For 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: info@centurion.aero. 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. ### For further information contact Kenneth Steeves, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7765; fax: 781-238-7199; email: kenneth.stevees@faa.gov. ### Discussion We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to the specified products. The NPRM was published in the Federal Register on May 23, 2014 (79 FR 29693). The NPRM proposed to correct an unsafe condition for the specified products. The MCAI states: In-flight shut down occurrences have been reported on aeroplanes equipped with TAE 125-02 engines. The initial results of the investigations showed that abnormal high wear of the high pressure fuel pumps was the probable cause of the engine failure. This condition, if not corrected, could result in further cases of engine power loss events and consequent potential loss of control of the aeroplane. ### Comments We gave the public the opportunity to participate in developing this AD. We received no comments on the NPRM (79 FR 29693, May 23, 2014). ### Conclusion We reviewed the available data and determined that air safety and the public interest require adopting this AD as proposed. ### Costs of Compliance We estimate that this AD affects 160 engines installed on airplanes of U.S. registry. We also estimate that it will take about 1 hour per engine to comply with this AD. The average labor rate is $85 per hour. Based on these figures, we estimate the cost of the AD on U.S. operators to be $13,600. ### Authority for This Rulemaking Title 49 of the United States Code specifies the FAA's authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. “Subtitle VII: Aviation Programs,” describes in more detail the scope of the Agency's authority. We are issuing this rulemaking under the authority described in “Subtitle VII, Part A, Subpart III, Section 44701: General requirements.” Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. ### Regulatory Findings We determined that this AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify this AD: (1) Is not a “significant regulatory action” under Executive Order 12866, (2) Is not a “significant rule” under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska to the extent that it justifies making a regulatory distinction, and (4) Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. ### Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS E00069EN](https://openairdocs.org/tcds/E00069EN): Continental Aerospace Technologies GmbH; names 2 of 4 models: TAE 125-02-99, TAE 125-02-114 ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 76 (0 by airframe model, 76 by engine model) - Makers: Diamond Aircraft Ind 46, Piper 27, Cessna 1, Elwood Enterprises 1, Glasair Aviation USA 1 Models with the most aircraft: - [Thielert TAE-125-02-99](https://openairdocs.org/engine/thielert-tae-125-02-99): 43 aircraft (engine model) - [Technify TAE125-02-114](https://openairdocs.org/engine/technify-tae125-02-114): 30 aircraft (engine model) - [Thielert TAE125-02-114](https://openairdocs.org/engine/thielert-tae125-02-114): 2 aircraft (engine model) - [Technify TAE125-02-99](https://openairdocs.org/engine/technify-tae125-02-99): 1 aircraft (engine model) All 4 models: https://openairdocs.org/ad/2014-17-03/models.md Every aircraft: https://openairdocs.org/ad/2014-17-03/aircraft.md ## Related documents - [Proposed rule FAA-2014-0179](https://openairdocs.org/proposed/FAA-2014-0179): Notice of proposed rulemaking (NPRM), published May 23, 2014 Its text cites no advisory circulars or STCs. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.