Airworthiness Directives; Technify Motors GmbH Reciprocating Engines
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.
[Federal Register Volume 79, Number 167 (Thursday, August 28, 2014)]
[Rules and Regulations]
[Pages 51240-51241]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2014-20451]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2014-0179; Directorate Identifier 2014-NE-03-AD;
Amendment 39-17956; AD 2014-17-03]
RIN 2120-AA64
Airworthiness Directives; Technify Motors GmbH Reciprocating
Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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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.
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:
[email protected]. 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.
Examining the AD Docket
You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2014-
0179; 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: 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: [email protected].
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 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).
[[Page 51241]]
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.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
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):
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:
[email protected].
(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:
[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.
(i) Material Incorporated by Reference
None.
Issued in Burlington, Massachusetts, on August 18, 2014.
Richard P. Warren,
Acting Assistant Directorate Manager, Engine & Propeller Directorate,
Aircraft Certification Service.
[FR Doc. 2014-20451 Filed 8-27-14; 8:45 am]
BILLING CODE 4910-13-P
Sources. Section 1 is written by AircraftDirectives from the record below and is a reading aid only. Section 2 is the United States Government's own text, reproduced without edit.
Federal Register: https://www.federalregister.gov/documents/2014/08/28/2014-20451/airworthiness-directives-technify-motors-gmbh-reciprocating-engines
Official PDF: https://www.govinfo.gov/content/pkg/FR-2014-08-28/pdf/2014-20451.pdf
Packet generated 2026-08-18 08:13 UTC.
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Section 1 is a reading aid, not the rule. It is our own plain-language condensation, written to help a reader find the relevant directive quickly. It is NOT a substitute for the regulation, it may omit conditions, exceptions, compliance times, alternative methods of compliance (AMOCs) and applicability limits, and it has no legal force whatsoever. Only the official text governs. Where Section 1 and Section 2 differ in any respect, Section 2 - and the official source it was retrieved from - controls absolutely.
Responsibility remains with the owner/operator. Under 14 CFR §91.403 and §91.417 the owner or operator is responsible for maintaining airworthiness and for required records; under §39.7 no person may operate a product to which an airworthiness directive applies except in accordance with that directive. Determining applicability to a specific serial number and configuration, and performing or supervising any required action, is the responsibility of the owner/operator and appropriately certificated personnel.
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