[Federal Register Volume 80, Number 130 (Wednesday, July 8, 2015)]
[Proposed Rules]
[Pages 38990-38992]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-16586]


 ========================================================================
 Proposed Rules
                                                 Federal Register
 ________________________________________________________________________
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 This section of the FEDERAL REGISTER contains notices to the public of 
 the proposed issuance of rules and regulations. The purpose of these 
 notices is to give interested persons an opportunity to participate in 
 the rule making prior to the adoption of the final rules.
 
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 

  Federal Register / Vol. 80, No. 130 / Wednesday, July 8, 2015 / 
Proposed Rules  

[[Page 38990]]



DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-1383; Directorate Identifier 2015-NE-15-AD]
RIN 2120-AA64


Airworthiness Directives; Technify Motors GmbH Reciprocating 
Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

-----------------------------------------------------------------------

SUMMARY: We propose to adopt a new airworthiness directive (AD) for all 
Technify Motors GmbH TAE 125-02 reciprocating engines with a dual mass 
flywheel installed. This proposed AD was prompted by reports of a 
gearbox drive shaft breaking during starting or restarting of the 
engine. This proposed AD would require installation of a start phase 
monitoring system and associated specified software. We are proposing 
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.

DATES: We must receive comments on this proposed AD by September 8, 
2015.

ADDRESSES: You may send comments by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Mail: Docket Management Facility, U.S. Department of 
Transportation, 1200 New Jersey Avenue SE., West Building Ground Floor, 
Room W12-140, Washington, DC 20590-0001.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
     Fax: 202-493-2251.
    For service information identified in this proposed 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: [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. 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 Operations office between 9 a.m. and 5 
p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this proposed 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 in the ADDRESSES section. Comments will be available in 
the AD docket shortly after receipt.

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: [email protected].

SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2015-1383; 
Directorate Identifier 2015-NE-15-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed AD based on those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact 
with FAA personnel concerning this proposed AD.

Discussion

    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Community, has issued EASA 
AD 2015-0055, dated March 31, 2015 (referred to hereinafter as ``the 
MCAI''), 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.

    You may obtain further information by examining the MCAI in the AD 
docket on the Internet at http://www.regulations.gov by searching for 
and locating Docket No. FAA-2015-1383.

Related Service Information Under 1 CFR Part 51

    Technify Motors GmbH (type certificate previously held by Thielert 
Aircraft Engines GmbH) issued Technify Motors Service Bulletin (SB) 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 NPRM.

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

[[Page 38991]]

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.

FAA's Determination and Requirements of This Proposed AD

    This product has been approved by the aviation authority of 
Germany, and is approved for operation in the United States. Pursuant 
to our bilateral agreement with the European Community, EASA has 
notified us of the unsafe condition described in the MCAI and service 
information referenced above. We are proposing this AD because we 
evaluated all information provided by EASA and determined the unsafe 
condition exists and is likely to exist or develop on other products of 
the same type design. This proposed AD would require installation of 
specified software mapping and a start phase monitoring system.

Costs of Compliance

    We estimate that this proposed AD affects 97 engines installed on 
airplanes of U.S. registry. We also estimate that it would take about 3 
hours per engine to comply with this proposed 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 
proposed 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 proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would 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 proposed 
regulation:
    (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.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 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):

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

(a) Comments Due Date

    We must receive comments by September 8, 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 TM 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: [email protected].

(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: 
[email protected].
    (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 by 
searching for and locating it in Docket No. FAA-2015-1383.
    (3) Technify Motors SB No. SB TMG 125-1018 P1, Revision 1, dated 
February 5, 2015; 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, can be obtained from Technify 
Motors GmbH, using the contact information in paragraph (h)(5) of 
this proposed AD.
    (4) Diamond Aircraft Industries GmbH MSB No. 42-109/1, dated 
February 4, 2015; and DAI MSB No. 42-007/16, dated February 4, 2015, 
can be obtained from Diamond

[[Page 38992]]

Aircraft Industries GmbH, using the contact information in paragraph 
(h)(5) of this proposed AD.
    (5) For Technify Motors service information identified in this 
proposed 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. For DAI service 
information identified in this proposed 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: 
[email protected].
    (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.


    Issued in Burlington, Massachusetts, on June 26, 2015.
Ann C. Mollica,
Acting Directorate Manager, Engine & Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. 2015-16586 Filed 7-7-15; 8:45 am]
 BILLING CODE 4910-13-P