[Docket No. FAA-2015-5193; Directorate Identifier 2015-NE-35-AD; Amendment 

39-18464; AD 2016-07-19] 

RIN 2120-AA64 

Airworthiness Directives; Technify Motors GmbH Reciprocating Engines 

AGENCY: Federal Aviation Administration (FAA), DOT. 

ACTION: Final rule. 

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 

affected fuel feed pumps. This AD was prompted by reports of in-flight shutdowns on 

TAE 125-02 engines. We are issuing this AD to prevent failure of the fuel feed pump, 

damage to the engine, and damage to the airplane. 

DATES: This AD becomes effective [INSERT DATE 35 DAYS AFTER DATE OF 

PUBLICATION IN THE FEDERAL REGISTER]. 

ADDRESSES: For service information identified in this AD, contact Technify Motors 

GmbH, Platanenstrasse 14, D-09356 Sank! Egidien, Germany; phone: +49-37204-696-0; 

fax: +49-37204-696-2912; email: support@continentaldiesel.de. You may view this 

service information at the FAA, Engine & Propeller Directorate, 1200 District A venue, 

Burlington, MA. For information on the availability of this material at the FAA, call781-
searching for and locating Docket No. FAA-2015-5193; or in person at the Docket 

Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal 

holidays. The AD docket contains this AD, the mandatory continuing airworthiness 

information (MCAI), the regulatory evaluation, any comments received, and other 

information. The address for the Docket Office (phone: 800-647-5527) is Document 

Management Facility, U.S. Department of Transportation, Docket Operations, M-30, 

West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE., 

Washington, DC 20590. 

FOR FURTHER INFORMATION CONTACT: Philip Haberlen, Aerospace Engineer, 

Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 District A venue, 

Burlington, MA 01803; phone: 781-238-7770; fax: 781-238-7199; email: 

philip.haberlen@faa.gov. 

SUPPLEMENTARY INFORMATION: 

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 January 4, 2016 (81 FR 27). The NPRM proposed to correct an 

unsafe condition for the specified products. The MCAI states: 

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the Internet at http://www.regulations.gov by searching for and locating Docket No. 

FAA-2015-5193. 

Comments 

We gave the public the opportunity to participate in developing this AD. We 

received no comments on the NPRM (81 FR 27, January 4, 2016). 

Conclusion 

We reviewed the available data and determined that air safety and the public 

interest require adopting this AD as proposed. 

Related Service Information 

Technify Motors GmbH has issued Operation & Maintenance Manual, CD-135 I 

CD-155, OM-02-02, Issue 4, Revision No.5, dated September 18,2015. The service 

information describes procedures for removing and replacing the fuel feed pump. 

Costs of Compliance 

We estimate that this AD affects 190 engines installed on airplanes of U.S. 

registry. We also estimate that it will take about 0.5 hours per engine to comply with this 

AD. The average labor rate is $85 per hour. Pro-rated cost of the life limit reduction is 

about $160 per part. Based on these figures, we estimate the cost of this AD on U.S. 

operators to be $38,475. 

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authority. 

We are issuing this rulemaking under the authority described in «Subtitle VII, 

Part A, Subpart III, Section 44 701: 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 

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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 

1. The authority citation for part 39 continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113,44701. 

§ 39.13 [Amended] 

2. The FAA amends § 39.13 by adding the following new airworthiness directive 

(AD): 

2016-07-19 Technify Motors GmbH (Type Certificate previously held by Thielert 

Aircraft Engines GmbH): Amendment 39-18464; Docket No. FAA-2015-5193; 

Directorate Identifier 2015-NE-35-AD. 

(a) Effective Date 

This AD becomes effective [INSERT DATE 35 DAYS AFTER DATE OF 

PUBLICATION IN THE FEDERAL REGISTER]. 

(b) Affected ADs 

None. 

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(d) Reason 

This AD was prompted by reports of in-flight shutdowns on TAE 125-02 engines. 

We are issuing this AD to prevent failure of the fuel feed pump, damage to the engine, 

and damage to the airplane. 

(e) Actions and Compliance 

Comply with this AD within the compliance times specified, unless already done. 

Remove from service each affected fuel feed pump before it exceeds 600 operating hours 

(OH) time in service (TIS) or within 110 OH after the effective date of this AD, 

whichever occurs later. 

(f) Installation Prohibition 

After the effective date of this AD, do not install onto any engine, any fuel feed 

pump, PIN 05-7312-K0073xx or PIN 05-7312-KOl33xx, where "xx" can be any number, 

if the fuel feed pump has 600 hours or more TIS. If TIS of a fuel feed pump is unknown 

or has exceeded 600 hours TIS, then the fuel feed pump is not eligible for installation. 

Rebuilt, overhauled, or repaired fuel feed pumps or fuel feed pumps that lack a serial 

number, are not eligible for installation. 

(g) Related Information 

(1) For more infonnation about this AD, Philip 1-Iaberlen, Aerospace Engineer, 

Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 District A venue, 

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docket on the Internet at http://www.regulations.gov by searching for and locating it in 

Docket No. FAA-2015-5193. 

(3) For service information identified in this AD, contact Technify Motors GmbH, 

Platanenstrasse 14, D-09356 Sank! Egidien, Germany; phone: +49-37204-696-0; fax: 

+49-37204-696-2912; email: support@continentaldiesel.de. 

(4) You may view this service information at the FAA, Engine & Propeller 

Directorate, 1200 District Avenue, Burlington, MA. For information on the availability of 

this material at the FAA, cal1781-238-7125. 

(h) Material Incorporated by Reference 

None. 

Issued in Burlington, Masslfchusetts, on March 25,2016. 

Colleen M. D' Alessandro, 

Manager, Engine & Propeller Directorate, 

Aircraft Certification Service. 

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