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2018-07-16 AUSTRO ENGINE GMBH ENGINES:
Amendment 39-19247; Docket No. FAA-2018-0153; Product Identifier 2018-NE-03-AD.

(a) EFFECTIVE DATE

    This AD is effective April 27, 2018.

(b) AFFECTED ADS

    None.

(c) APPLICABILITY

    This  AD  applies  to  all  Austro Engine GmbH model E4 and E4P diesel
    piston engines.

(d) SUBJECT

    Joint Aircraft System Component (JASC) Code 8560, Reciprocating Engine
    Supercharger.

(e) UNSAFE CONDITION

    This AD was prompted by reports of broken or disconnected turbocharger
    waste gate control  rods on some  engines. We are  issuing this AD  to
    prevent failure of the turbocharger waste gate control rod. The unsafe
    condition, if  not addressed,  could result  in loss  of engine thrust
    control and reduced control of the airplane.

(f) COMPLIANCE

    Comply with this AD within the compliance times specified,  unless al-
    ready done.

(g) REQUIRED ACTIONS

    Within the compliance times identified in Table 1 to paragraph (g)  of
    this AD,  and  thereafter at intervals not to exceed  250 flight hours
    (FHs), replace the  waste gate controller  and control rod  circlip in
    accordance  with the  Accomplishment Instructions,  Paragraph 2.1,  of
    Austro Engine GmbH Mandatory Service Bulletin (MSB)  No. MSB-E4-022/2,
    Rev. No. 2, dated November 27, 2017.

        TABLE 1 TO PARAGRAPH (G)  INITIAL REPLACEMENT COMPLIANCE TIME    
    ______________________________________________________________________
    GROUP            COMPLIANCE TIME (A OR B, WHICHEVER OCCURS LATER)
    ______________________________________________________________________
      1       A   Within 50 FHs or 2 months, whichever occurs first after
                  the effective date of this AD
              B   Within 250 FHs since first installation on an engine

      2       A   Within 100 FHs or 5 months, whichever occurs first after
                  the effective date of this AD
              B   Within 250 FHs since first installation on an engine
    ______________________________________________________________________

(h) INSTALLATION PROHIBITION

    Do  not  install  on any engine a non-spring loaded waste gate control
    rod circlip,  part number DIN6799-5,  after the effective date of this
    AD.

(i) DEFINITIONS

    For the purpose of this AD,  a Group 1 engine is an Austro Engine GmbH
    model E4-B or E4-C engine installed on a DA 42 M-NG airplane  with ex-
    ternal containers  or  an  E4-A engine.  A Group 2 engine is any other
    Austro Engine GmbH model E4 and E4P engine.

(j) CREDIT FOR PREVIOUS ACTIONS

    You may take credit for  replacement of the waste gate  controller and
    control  rod circlip  required  by  paragraph (g)  of this  AD if  you
    performed  this action  before  the  effective date  of this  AD using
    earlier versions of Austro Engine MSB No. MSB-E4-022.

(k) ALTERNATIVE METHODS OF COMPLIANCE (AMOCS)

(1) The Manager, ECO Branch,  FAA,  has the authority to approve AMOCs for
    this AD, if requested using the  procedures found in 14 CFR 39.19.  In
    accordance with  14 CFR  39.19, send  your request  to your  principal
    inspector or local Flight Standards District Office,  as  appropriate.
    If sending information  directly to the  manager of the  certification
    office, send it to the attention of the person identified in paragraph
    (l)(1) of this AD. You may email your request to: ANE-AD-AMOC@faa.gov.

(2) Before using any approved AMOC,  notify your appropriate principal in-
    spector,  or  lacking a principal inspector,  the manager of the local
    flight standards district office/certificate holding district office.

(l) RELATED INFORMATION

(1) For more information about this AD,  contact  Robert Green,  Aerospace
    Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803;
    phone: 781-238-7754; fax: 781-238-7199; email: robert.green@faa.gov.

(2) Refer  to  European Aviation Safety Agency (EASA) AD 2017-0250,  dated
    December 18, 2017,  for more information.  You may examine the EASA AD
    in the AD docket  on  the  internet  at  http://www.regulations.gov by
    searching for and locating it in Docket No. FAA-2018-0153.

(m) 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) Austro Engine GmbH  Mandatory Service Bulletin No. MSB-E4-022/2,  Rev.
    No. 2, dated November 27, 2017.

(ii) Reserved.

(3) For  Austro Engine GmbH  service information identified  in  this  AD,
    contact  Austro Engine GmbH,  Rudolf-Diesel-Strasse 11,  A-2700 Weiner
    Neustadt,  Austria;  phone: +43 2622 23000;  fax: +43 2622 23000-2711;
    internet: www.austroengine.at.

(4) You may view  this service information  at  FAA,  Engine  &  Propeller
    Standards Branch,  1200 District Avenue, Burlington, MA.  For informa-
    tion on the availability of this material  at  the  FAA, call 781-238-
    7759.

(5) You  may  view  this  service  information  that  is  incorporated  by
    reference 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 April 3, 2018.  Robert J. Ganley,
Manager,  Engine and Propeller  Standards Branch,  Aircraft  Certification
Service.

FOR FURTHER INFORMATION CONTACT:  Robert Green,  Aerospace  Engineer,  ECO
Branch,  FAA,  1200 District Avenue, Burlington, MA 01803; phone: 781-238-
7754; fax: 781-238-7199; email: robert.green@faa.gov.
PREAMBLE 

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0153; Product Identifier 2018-NE-03-AD; Amendment
39-19247; AD 2018-07-16]
RIN 2120-AA64

Airworthiness Directives; Austro Engine GmbH Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; request for comments.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for all
Austro Engine GmbH model E4 and E4P diesel piston engines. This AD
requires replacement of the waste gate controller and the control rod
circlip. This AD was prompted by reports of broken or disconnected
turbocharger waste gate control rods on some engines. We are issuing
this AD to address the unsafe condition on these products.

DATES: This AD is effective April 27, 2018.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of April 27,
2018.
We must receive comments on this AD by May 29, 2018.

ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions
for submitting comments.
Fax: 202-493-2251.
Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC 20590.
Hand Delivery: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC 20590, between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays.
For service information identified in this final rule, contact
Austro Engine GmbH, Rudolf-Diesel-Strasse 11, A-2700 Weiner Neustadt,
Austria; phone: +43 2622 23000; fax: +43 2622 23000-2711; internet:
www.austroengine.at. You may view this service information at the FAA,
Engine & Propeller Standards Branch, 1200 District Avenue, Burlington,
MA 01803. For information on the availability of this material at the FAA, call 781-
238-7759. It is also available on the internet at http://www.regulations.gov by
searching for and locating Docket No. FAA-2018-0153.

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-2018-0153;
or in person at Docket Operations between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays. The AD docket contains
this final rule, the regulatory evaluation, any comments received, and
other information. The street address for the Docket Operations (phone:
800-647-5527) is listed above. Comments will be available in the AD
docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Robert Green, Aerospace Engineer, ECO
Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-
238-7754; fax: 781-238-7199; email: robert.green@faa.gov.

SUPPLEMENTARY INFORMATION:

Discussion

The European Aviation Safety Agency (EASA), which is the Technical
Agent for the Member States of the European Community, has issued EASA
AD 2017-0250, dated December 18, 2017 (referred to after this as the
MCAI), to address an unsafe condition for the specified products. The
MCAI states:

Occurrences have been reported where, on some engines,
turbocharger waste gate control rods were found broken and/or
disconnected. Investigation results indicate that these failures
were due to insufficient fatigue life or improper handling of the
waste gate control rod and improper installation of the non spring
loaded waste gate control rod circlip.
These conditions, if not corrected, could lead to improper
operation of the waste gate with consequent engine power loss,
possibly resulting in reduced control of the aeroplane.
To address these potential unsafe conditions, Austro Engine
designed a new spring loaded waste gate control rod circlip and
published Mandatory Service Bulletin (MSB) MSB-E4-022, later
revised, EASA AD No. 2017-0250 introducing a life limit for the
affected waste gate controllers and waste gate control rod circlips.
For the reason described above, this [EASA] AD requires
implementation of those life limits, and prohibits reinstallation of
non spring loaded circlips.

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-2018-0153.

Related Service Information Under 1 CFR Part 51

We reviewed Austro Engine Mandatory Service Bulletin (MSB) No. MSB-
E4-022/2, Rev. No. 2, November 27, 2017. The MSB describes procedures
for replacement of the waste gate controller and the control rod
circlip. 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.

Other Related Service Information

We also reviewed Austro Engine GmbH MSB No. MSB-E4-002/2, Rev. No.
2, dated April 1, 2015. This MSB describes E4 and E4P model engine
configurations.

FAA's Determination

This product has been approved by EASA, 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 issuing this AD because we evaluated all the relevant
information provided by EASA and determined the unsafe condition
described previously is likely to exist or develop in other products of
the same type design.

AD Requirements

This AD requires replacement of the waste gate controller and the
control rod circlip.

FAA's Justification and Determination of the Effective Date

An unsafe condition exists that requires the immediate adoption of
this AD without providing an opportunity for public comments prior to
adoption. The FAA has found that the risk to the flying public
justifies waiving notice and comment prior to adoption of this rule
because the compliance time for the action is less than the time
required for public comment. The FAA has reviewed and agrees with
EASA's determination that certain affected waste gate controller and
control rod circlip must be replaced within 50 flight hours or 2
months. Failure to replace these parts within the required compliance
times could lead to improper operation of the waste gate controller
with consequent engine power loss and reduced control of the airplane.
Therefore, we find good cause that notice and opportunity for prior
public comment are impracticable. In addition, for the reason stated
above, we find that good cause exists for making this amendment
effective in less than 30 days.

Comments Invited

This AD is a final rule that involves requirements affecting flight
safety and was not preceded by notice and an opportunity for public
comment. However, we invite you to send any written data, views, or
arguments about this final rule. Send your comments to an address
listed under the ADDRESSES section. Include the docket number FAA-2018-
0153 and Product Identifier 2018-NE-03-AD at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of this final rule. We will
consider all comments received by the closing date and may amend this
final rule because of 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 we
receive about this final rule.

Costs of Compliance

We estimate that this AD affects 211 engines installed on airplanes
of U.S. registry.
We estimate the following costs to comply with this AD:

Estimated Costs

Action Labor cost Parts cost Cost per product Cost on U.S. operators
Replace Turbocharger Waste Gate Controller and Circlip. 1.5 work-hours x $85 per hour = $127.50 $235 $362.50 $76,488

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.
This AD is issued in accordance with authority delegated by the
Executive Director, Aircraft Certification Service, as authorized by
FAA Order 8000.51C. In accordance with that order, issuance of ADs is
normally a function of the Compliance and Airworthiness Division, but
during this transition period, the Executive Director has delegated the
authority to issue ADs applicable to engines, propellers, and
associated appliances to the Manager, Engine and Propeller Standards
Branch, Policy and Innovation Division.

Regulatory Findings

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, 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

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]

2. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive (AD):