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2017-11-10 LYCOMING ENGINES RECIPROCATING ENGINES (TYPE CERTIFICATE PREVIOUSLY HELD BY TEXTRON LYCOMING DIVISION, AVCO CORPORATION): Amendment 39-18909; Docket No. FAA-2016-9512; Directorate Identifier 2016-NE-27-AD.
(a) EFFECTIVE DATE

    This AD is effective June 28, 2017.

(b) AFFECTED ADS

    None.

(c) APPLICABILITY

    This AD applies to all Lycoming TIO-540-AJ1A reciprocating engines.

(d) SUBJECT

    Joint  Aircraft  System  Component (JASC)  Code  7800,  Engine Exhaust
    System.

(e) UNSAFE CONDITION

    This AD was  prompted by several  reports of engine  exhaust leaks. We
    are issuing this AD to prevent engine exhaust leaks, which could  lead
    to uncontrolled engine fire, harmful exhaust gases entering the  cabin
    resulting in crew incapacitation, and damage to the airplane.

(f) COMPLIANCE

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

(g) REQUIRED ACTIONS

(1) For  all engines,  perform an initial exhaust system inspection within
    10 hours time in service (TIS)  after the effective date of this AD as
    follows:

(i) Use  the  Required Action,  paragraph 1. of Lycoming Engines Mandatory
    Service Bulletin (MSB) No. 627C,  dated  November 17, 2016,  to do the
    inspection.

(ii) For any part that fails the inspection required  by  paragraph (g)(1)
     (i) of this AD, before further flight, replace the failed part with a
     part eligible for installation.

(iii) Use the Required Action, paragraph 3. of Lycoming MSB No. 627C dated
      November 17, 2016,  to submit a survey to Lycoming Engines within 10
      days of performing the inspection.

(2) For all engines, perform an initial torque check of the exhaust system
    flange nuts within 10 hours TIS after the effective date of this AD or
    within 100 hours TIS  after the last exhaust system maintenance (ESM),
    whichever occurs later, as follows:

(i) Use the Required Action, paragraph 2. of Lycoming Engines MSB No. 627C
    dated November 17, 2016 to torque check the flange nuts.

(ii) For any part that fails the check required  by paragraph (g)(2)(i) of
     this AD,  before further flight,  replace the failed part with a part
     eligible for installation.

(iii) Use the Required Action, paragraph 3. of Lycoming MSB No. 627C dated
      November 17, 2016,  to submit a survey to Lycoming Engines within 10
      days of performing the check.

(3) For all engines with 1,000 hours TIS or less since the last ESM:

(i) Repeat  the  actions required by paragraphs (g)(1)(i) through (iii) of
    this AD inclusive,  every 25 hours TIS since the last ESM,  or exhaust
    system inspection, whichever occurs later.

(ii) Repeat the actions required  by paragraphs (g)(2)(i) through (iii) of
     this AD inclusive,  every 100 hours TIS after the last ESM, or torque
     check of the exhaust system flange nuts, whichever occurs later.

(4) For all engines with more than 1,000 hours TIS since the last ESM:

(i) Repeat  the  actions required by paragraphs (g)(1)(i) through (iii) of
    this AD inclusive,  every 50 hours TIS since the last ESM,  or exhaust
    system inspection, whichever occurs later.

(ii) Repeat the actions required  by paragraphs (g)(2)(i) through (iii) of
     this AD inclusive, every 100 hours TIS since the last ESM,  or torque
     check of the exhaust system flange nuts, whichever occurs later.

(h) DEFINITIONS

    For the purposes of this AD, ESM is any maintenance that requires  the
    removal and  replacement of  any exhaust  system pipe  or turbocharger
    mounting bracket, or the  re-torqueing of the exhaust  flange mounting
    nuts.

(i) TERMINATING ACTION

    The requirement in Required Action paragraph 3., to submit a survey to
    Lycoming Engines ends  one year after  the effective date  of this AD,
    but,  the exhaust system inspections in Required Actions paragraph 1.,
    and  torque checks  of the  exhaust system  flange nuts,  in  Required
    Actions paragraph 2., are still required.

(j) PAPERWORK REDUCTION ACT BURDEN STATEMENT

    A federal  agency may  not conduct  or sponsor,  and a  person is  not
    required to respond to, nor shall a person be subject to a penalty for
    failure to  comply with  a collection  of information  subject to  the
    requirements of the Paperwork Reduction Act unless that collection  of
    information  displays  a current  valid  OMB Control  Number.  The OMB
    Control Number  for this  information collection  is 2120-0056. Public
    reporting  for  this  collection of  information  is  estimated to  be
    approximately 5 minutes per response, including the time for reviewing
    instructions, completing and reviewing the collection of  information.
    All  responses  to  this  collection  of  information  are  mandatory.
    Comments concerning the  accuracy of this  burden and suggestions  for
    reducing the burden should be directed to the FAA at: 800 Independence
    Ave. SW., Washington, DC 20591, Attn: Information Collection Clearance
    Officer, AES-200.

(k) ALTERNATIVE METHODS OF COMPLIANCE (AMOCS)

    The Manager, New York Aircraft Certification Office, FAA,  may approve
    AMOCs for this AD.  Use the procedures found  in 14 CFR 39.19  to make
    your request.

(l) RELATED INFORMATION

(1) For more information about this AD, contact Norman Perenson, Aerospace
    Engineer,  New  York  Aircraft  Certification  Office,  FAA,  Engine &
    Propeller Directorate,  1600 Stewart Avenue,  Suite 410,  Westbury, NY
    11590; phone: 516-228-7337; fax: 516-794-5531; email: Norman.Perenson@
    faa.gov.

(2) Lycoming Engines MSB No. 614A,  dated  October 10, 2014,  which is not
    incorporated by reference in this AD,  can be obtained  from  Lycoming
    Engines using the contact information in paragraph (m)(3) of this AD.

(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) Lycoming Engines Mandatory Service Bulletin No. 627C,  dated  November
    17, 2016.

(ii) Reserved.

(3) For  Lycoming Engines  service  information  identified  in  this  AD,
    contact Lycoming Engines,  652 Oliver Street,  Williamsport, PA 17701;
    phone: 800-258-3279;  fax: 570-327-7101;  Internet:  www.lycoming.com/
    Lycoming/SUPPORT/TechnicalPublications/ServiceBulletins.aspx.

(4) You  may  view  this  service  information  at FAA, Engine & Propeller
    Directorate, 1200 District Avenue, 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  May 24, 2017.  Carlos A. Pestana,
Acting  Assistant  Directorate Manager,  Engine  & Propeller  Directorate,
Aircraft Certification Service.

FOR FURTHER INFORMATION CONTACT: Norman Perenson,  Aerospace Engineer, New
York Aircraft Certification Office,  FAA,  Engine & Propeller Directorate,
1600 Stewart Avenue,  Suite 410, Westbury, NY 11590;  phone: 516-228-7337;
fax: 516-794-5531; email: Norman.Perenson@faa.gov.
PREAMBLE 

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-9512; Directorate Identifier 2016-NE-27-AD;
Amendment 39-18909; AD 2017-11-10]
RIN 2120-AA64

Airworthiness Directives; Lycoming Engines Reciprocating Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; request for comments.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for all
Lycoming TIO-540-AJ1A reciprocating engines. This AD requires initial
and repetitive inspections of engine exhaust system weld joints and
torque checking the exhaust pipe flange mounting nuts. This AD was
prompted by several reports of engine exhaust leaks. We are
issuing this AD to correct the unsafe condition on these products.

DATES: This AD is effective June 28, 2017.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of June 28,
2017.
We must receive comments on this AD by July 28, 2017.

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
Lycoming Engines, 652 Oliver Street, Williamsport, PA 17701; phone:
800-258-3279; fax: 570-327-7101; Internet: www.lycoming.com/Lycoming/SUPPORT/TechnicalPublications/ServiceBulletins.
aspx. 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, call 781-238-7125. It is also available on
the internet at http://www.regulations.gov by searching for and
locating Docket No. FAA-2016-9512.

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-2016-
9512; 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 regulatory evaluation, any comments received, and
other information. The street 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: Norman Perenson, Aerospace Engineer,
New York Aircraft Certification Office, FAA, Engine & Propeller
Directorate, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone:
516-228-7337; fax: 516-794-5531; email: Norman.Perenson@faa.gov.

SUPPLEMENTARY INFORMATION:

Discussion

We received several reports of cracked engine exhaust pipes and
exhaust studs pulling out from cylinders on Lycoming TIO-540-AJ1A
reciprocating engines. This AD requires initial and repetitive
inspections of all engine exhaust system weld joints and torque
checking the exhaust pipe flange mounting nuts. We are issuing this AD
to prevent engine exhaust leaks, which could lead to uncontrolled
engine fire, harmful exhaust gases entering the cabin resulting in crew
incapacitation, and damage to the airplane.

Related Service Information Under 1 CFR Part 51

We reviewed Lycoming Engines Mandatory Service Bulletin (MSB) No.
627C, dated November 17, 2016. The MSB describes procedures for exhaust
system inspection and flange nut torque check. 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 reviewed Lycoming Engines MSB No. 614A, dated October 10, 2014,
which provides maintenance instructions on the exhaust system for
certain Lycoming engines. The FAA issued AD 2015-10-06, Amendment 39-
18162 (80 FR 30345, May 28, 2015), (``AD 2015-10-06'') that mandates
replacement of the turbocharger mounting bracket and inspection of the
exhaust pipes in accordance with Lycoming Engines MSB No. 614A, dated
October 10, 2014. The requirements in this AD are in addition to the
requirements of AD 2015-10-06. Complying with AD 2015-10-06 and
Lycoming Engines MSB No. 614A, dated October 10, 2014, does not
constitute compliance with this AD.

FAA's Determination

We are issuing this AD because we evaluated all the relevant
information 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 initial and repetitive inspections of all engine
exhaust system weld joints and torque checking the exhaust pipe flange
mounting nuts.

Differences Between This AD and the Service Information


Table 1 of Lycoming Engines MSB No. 627C, dated November 17, 2016,
provides a longer time between inspections of the engine exhaust system
when an operational carbon monoxide detector is installed in the
airplane. This AD does not consider whether an operational carbon
monoxide detector is installed in the airplane.

Interim Action

We consider this AD interim action. Lycoming is determining the
root cause for the unsafe condition identified in this AD. Once a root
cause is determined, we will consider additional rulemaking.

FAA's Justification and Determination of the Effective Date

An unsafe condition exists that requires the immediate adoption of
this AD. The FAA has found that the risk to the flying public justifies
waiving notice and comment prior to adoption of this rule because
engine exhaust leaks could lead to uncontrolled engine fire, harmful
exhaust gases entering the cabin resulting in crew incapacitation, and
damage to the airplane. Therefore, we find that notice and opportunity
for prior public comment are impracticable and 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 AD. Send your comments to an address listed under
the ADDRESSES section. Include the docket number FAA-2016-9512 and
Directorate Identifier 2016-NE-27-AD at the beginning of your comments.
We specifically invite comments on the overall regulatory, economic,
environmental, and energy aspects of this AD. We will consider all
comments received by the closing date and may amend this AD 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 AD.

Costs of Compliance

We estimate that this AD affects 758 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
Inspection and torque check 1 work-hour x $85 per hour = $85 per inspection cycle $0.00 $85.00 $64,430.00 per inspection cycle

Paperwork Reduction Act

A federal agency may not conduct or sponsor, and a person is not
required to respond to, nor shall a person be subject to penalty for
failure to comply with a collection of information subject to the
requirements of the Paperwork Reduction Act unless that collection of
information displays a current valid OMB control number. The control
number for the collection of information required by this AD is 2120-
0056. The paperwork cost associated with this AD has been detailed in
the Costs of Compliance section of this document and includes time for
reviewing instructions, as well as completing and reviewing the
collection of information. Therefore, all reporting associated with
this AD is mandatory. Comments concerning the accuracy of this burden
and suggestions for reducing the burden should be directed to the FAA
at 800 Independence Ave. SW., Washington, DC 20591. ATTN: Information
Collection Clearance Officer, AES-200.

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

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 that this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Is not a ``significant rule'' under 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):