
[Federal Register Volume 80, Number 205 (Friday, October 23, 2015)]
[Rules and Regulations]
[Pages 64314-64316]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-26347]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-1383; Directorate Identifier 2015-NE-15-AD; 
Amendment 39-18293; AD 2015-21-01]
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 all 
Technify Motors GmbH TAE 125-02 reciprocating engines with a dual mass 
flywheel installed. This AD requires installation of a start phase 
monitoring system and associated specified software. This AD was 
prompted by reports of a gearbox drive shaft breaking during starting 
or restarting of the engine. We are issuing this AD to prevent overload 
and failure of the gearbox drive shaft, which could result in failure 
of the engine, in-flight shutdown, and loss of control of the airplane.

DATES: This AD becomes effective November 27, 2015.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of November 27, 
2015.

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 29125; email: 
engines.com">info@centurion-engines.com; and Diamond Aircraft Industries GmbH, N. A. 
Otto-Strasse 5, 2700 Wiener Neustadt, Austria; phone: +43 2622 26700; 
fax: +43 2622 26700 1369; email: airworthiness@diamond-air.at. 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. It is also available on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2015-
1383.

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-2015-
1383; 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: Robert Green, Aerospace Engineer, 
Engine Certification Office, FAA, Engine & Propeller Directorate, 12 
New England Executive Park, Burlington, MA 01803; phone: 781-238-7754; 
fax: 781-238-7199; email: robert.green@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 July 8, 2015 (80 FR 
38990). The NPRM proposed to correct an unsafe condition for the 
specified products. The MCAI states:

    Cases of a broken gearbox drive shaft have been reported on 
aeroplanes equipped with TAE 125-02 engines that have a Dual Mass 
Flywheel installed.
    Investigations results showed a possible overload of the gearbox 
drive shaft during starting of the engine or during restarting of 
the engine in-flight.
    This condition, if not corrected, could lead to engine power 
loss during flight, possibly resulting in 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 (80 FR 38990, July 8, 
2015).

[[Page 64315]]

Conclusion

    We reviewed the available data and determined that air safety and 
the public interest require adopting this AD as proposed.

Related Service Information Under 1 CFR Part 51

    Technify Motors GmbH has issued Service Bulletin No. SB TMG 125-
1018 P1, Revision 1, dated February 5, 2015. The service information 
describes procedures for installing a start phase monitoring system and 
associated specified software mapping on particular airplane models. 
This service information is reasonably available because the interested 
parties have access to it through their normal course of business or by 
the means identified in the ADDRESSES section of this final rule.

Other Related Service Information

    Technify Motors GmbH has also issued Technify Motors SB No. TM TAE 
000-0007, Revision 28, dated February 5, 2015; Technify Motors 
Installation Manual No. IM-02-02, Issue 4, Revision 2, dated January 
30, 2015, with Chapter 02-IM-13-02, section 13.8.16, Revision 1, dated 
November 28, 2014; Technify Motors SB No. SB TMG 601-1007 P1, Revision 
3, dated February 5, 2015; and Technify Motors SB No. SB TMG 651-1004 
P1, Revision 2, dated February 5, 2015. Diamond Aircraft Industries 
GmbH (DAI) has issued DAI Mandatory Service Bulletin (MSB) No. 42-109/
1, dated February 4, 2015; and DAI MSB No. 42-007/16, dated February 4, 
2015. The service information describes procedures for installing a 
start phase monitoring system and associated specified software 
mapping.

Costs of Compliance

    We estimate that this AD affects 97 engines installed on airplanes 
of U.S. registry. We also estimate that it will take about 3 hours per 
engine to comply with this AD. The average labor rate is $85 per hour. 
For 13 of the engines, required parts cost about $285 per engine. For 
84 of the engines, required parts cost about $206 per engine. Based on 
these figures, we estimate the cost of this AD on U.S. operators to be 
$45,744.

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):

2015-21-01 Technify Motors GmbH (Type Certificate Previously Held by 
Thielert Aircraft Engines GmbH): Amendment 39-18293; Docket No. FAA-
2015-1383; Directorate Identifier 2015-NE-15-AD.

(a) Effective Date

    This AD becomes effective November 27, 2015.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Technify Motors GmbH TAE 125-02-99 
(commercial designation CD-135, formerly Centurion 2.0) and TAE 125-
02-114 (commercial designation CD-155, formerly Centurion 2.0S) 
reciprocating engines, with a dual mass flywheel installed.

(d) Reason

    This AD was prompted by reports of a gearbox drive shaft 
breaking during starting or restarting of the engine. We are issuing 
this AD to prevent overload and failure of the gearbox drive shaft, 
which could lead to failure of the engine, in-flight shutdown, and 
loss of control of the airplane.

(e) Actions and Compliance

    Comply with this AD within the compliance times specified, 
unless already done.
    Within 110 flight hours or at the next scheduled inspection 
after the effective date of this AD, whichever occurs first, install 
a start phase monitoring system and software mapping. Use Technify 
Motors Service Bulletin (SB) No. SB TMG 125-1018 P1, Revision 1, 
dated February 5, 2015, to do the installation.

(f) Installation Prohibition

    After the effective date of this AD, do not install onto any 
airplane any Technify Motors TAE 125-02-99 or TAE 125-02-114 
reciprocating engine that is not equipped with a start phase 
monitoring system and software mapping.

(g) 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: ANE-AD-AMOC@faa.gov.

(h) Related Information

    (1) For more information about this AD, contact Robert Green, 
Aerospace Engineer, Engine Certification Office, FAA, Engine & 
Propeller Directorate, 12 New England Executive Park, Burlington, MA 
01803; phone: 781-238-7754; fax: 781-238-7199; email: 
robert.green@faa.gov.
    (2) Refer to MCAI European Aviation Safety Agency AD 2015-0055, 
dated March 31, 2015, for more information. You may examine the MCAI 
in the AD docket on the Internet at http://www.regulations.gov/#!documentDetail;D=FAA-2015-1383-0002.
    (3) Technify Motors SB No. TM TAE 000-0007, Revision 28, dated 
February 5, 2015; Technify Motors Installation Manual No. IM-02-02, 
Issue 4, Revision 2, dated January 30, 2015, with Chapter 02-IM-13-
02, section 13.8.16, Revision 1, dated November 28, 2014; Technify 
Motors SB No. SB TMG 601-1007 P1, Revision 3, dated February 5, 
2015; and Technify Motors SB No. SB TMG 651-1004 P1, Revision 2, 
dated February 5, 2015,

[[Page 64316]]

which are not incorporated by reference in this AD, can be obtained 
from Technify Motors GmbH, using the contact information in 
paragraph (i)(3) of this AD.
    (4) Diamond Aircraft Industries GmbH (DAI) MSB No. 42-109/1, 
dated February 4, 2015; and DAI MSB No. 42-007/16, dated February 4, 
2015, which are not incorporated by reference in this AD, can be 
obtained from Diamond Aircraft Industries GmbH, using the contact 
information in paragraph (h)(5) of this AD.
    (5) For DAI service information identified in this AD, contact 
Diamond Aircraft Industries GmbH, N. A. Otto-Strasse 5, 2700 Wiener 
Neustadt, Austria; phone: +43 2622 26700; fax: +43 2622 26700 1369; 
email: airworthiness@diamond-air.at.
    (6) 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

    (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.
    (i) Technify Motors Service Bulletin (SB) No. SB TMG 125-1018 
P1, Revision 1, dated February 5, 2015.
    (ii) Reserved.
    (3) For Technify Motors GmbH 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">info@centurion-engines.com.
    (4) 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.
    (5) You may view this service information at the National 
Archives and Records 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.

    Issued in Burlington, Massachusetts, on October 6, 2015.
Ann C. Mollica,
Acting Directorate Manager, Engine & Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. 2015-26347 Filed 10-22-15; 8:45 am]
 BILLING CODE 4910-13-P


