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2017-10-04 EMBRAER S.A.: Amendment 39-18878; Docket No. FAA-2016-9507; Directorate Identifier 2016-NM-127-AD.
(a) EFFECTIVE DATE

    This AD is effective June 29, 2017.

(b) AFFECTED ADS

    None.

(c) APPLICABILITY

    This AD applies  to  Embraer S.A. Model EMB-120, EMB-120ER, EMB-120FC,
    EMB-120QC, and EMB-120RT airplanes,  certificated in any category, all
    serial numbers.

(d) SUBJECT

    Air Transport Association (ATA) of America Code 32, Landing Gear.

(e) REASON

    This  AD was  prompted by  changes to  the airworthiness  limitations,
    which add life-limited landing  gear parts not previously  identified.
    We are issuing this AD to prevent life-limited landing gear parts from
    being used beyond their safe-life limits, which could lead to collapse
    of the landing gear.

(f) COMPLIANCE

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

(g) REVISION OF MAINTENANCE OR INSPECTION PROGRAM

    Within 90 days after the effective date of this AD, revise the mainte-
    nance or inspection program, as applicable, by incorporating the life-
    limited landing gear parts and the applicable safe-life limits identi-
    fied in table 1 to paragraph (g) of this AD,  as specified  in EMB-120
    Brasilia  Maintenance Review Board  (MRB) Report,  Temporary  Revision
    28-1, dated May 17, 2016.

    TABLE 1 TO PARAGRAPH (G) OF THIS AD - LIFE-LIMITED LANDING GEAR PARTS 
    ______________________________________________________________________
                                                           SAFE-LIFE
     PART NO.                   DESCRIPTION                  LIMITS
                                                           (LANDINGS)
    ______________________________________________________________________
    19699-001-00            Pin drag strut, lower            104,054

    19429-000-00            Piston tube (pre-                 30,000
                            modification Embraer
                            Service Bulletin 120-
                            032-0514)

    19429-000-00            Piston tube (post-                90,000
                            modification Embraer
                            Service Bulletin 120-
                            032-0514)

    19946-001-00            Pin leg hinge                     90,000

    20030-001-00            Pin torque link                   90,000

    19437-000-00            Drag strut, upper half           104,054

    20031-001-00            Pin drag strut hinge             104,054

    19414-000-00            Piston tube                       90,000

    19919-000-00            Pin leg hinge                     90,000
    ______________________________________________________________________

(h) REPLACE AFFECTED PARTS

    The initial compliance time for  the replacement of affected parts  is
    specified in paragraphs (h)(1) and (h)(2) of this AD. Replace affected
    parts with  serviceable parts,  in accordance  with the Accomplishment
    Instructions of Embraer Alert Service Bulletin 120-32-A543, dated July
    11, 2016.

(1) Before  the  applicable safe-life limit identified in table 1 to para-
    graph (g) of this AD,  or  within 90 days  after the effective date of
    this AD, whichever occurs later.

(2) Within 90 days  after the effective date of this AD for parts on which
    the current status is unknown.

(i) PARTS INSTALLATION PROHIBITION

    As of  the effective  date of  this AD,  no person  may install on any
    airplane a main landing gear part  or nose landing gear part having  a
    part number identified in table 1  to paragraph (g) of this AD,  if it
    has reached or exceeded its safe-life limit, or if its current  status
    is unknown.

(j) NO ALTERNATIVE ACTIONS AND INTERVALS

    After accomplishing the revision required by paragraph (g) of this AD,
    no alternative actions  (e.g., inspections) or  intervals may be  used
    unless the actions or intervals are approved as an alternative  method
    of compliance in accordance with the procedures specified in paragraph
    (k)(1) of this AD.

(k) OTHER FAA AD PROVISIONS

    The following provisions also apply to this AD:

(1) Alternative Methods of Compliance (AMOCs):  The Manager, International
    Branch, ANM-116, Transport Airplane Directorate, 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  International
    Branch, send it to the attention of the person identified in paragraph
    (l)(2) of this AD.  Information  may  be  emailed  to: 9-ANM-116-AMOC-
    REQUESTS@faa.gov.  Before  using   any  approved  AMOC,   notify  your
    appropriate principal inspector, or lacking a principal inspector, the
    manager  of  the local  flight  standards district  office/certificate
    holding district office.

(2) Contacting the Manufacturer:  For any requirement in this AD to obtain
    corrective actions from a manufacturer the action must be accomplished
    using a method approved by the Manager, International Branch, ANM-116,
    Transport Airplane Directorate, FAA or the Agencia Nacional de Aviacao
    Civil (ANAC); or ANAC's authorized  Designee. If approved by the  ANAC
    Designee,  the  approval   must  include  the   Designee's  authorized
    signature.

(l) RELATED INFORMATION

(1) Refer   to   Mandatory  Continuing  Airworthiness  Information  (MCAI)
    Brazilian AD 2016-07-02, dated July 27, 2016, for related information.
    This MCAI may be found in the AD docket on the Internet at http://www.
    regulations.gov by searching for and locating Docket No. FAA-2016-9507

(2) For more information about this AD,  contact Todd Thompson,  Aerospace
    Engineer, International Branch ANM-116, Transport Airplane Directorate
    FAA,  1601 Lind Avenue SW., Renton, WA 98057-3356;  telephone 425-227-
    1175; fax 425-227-1149.

(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 this AD specifies otherwise.

(i) EMB-120 Brasilia  Maintenance  Review  Board  (MRB) Report,  Temporary
    Revision 28-1, dated May 17, 2016.

(ii) Embraer Alert Service Bulletin 120-32-A543, dated July 11, 2016.

(3) For service information identified in this AD, contact Empresa Brasil-
    eira de Aeronautica S.A. (Embraer), Technical Publications Section (PC
    060),  Av. Brigadeiro Faria Lima,  2170-Putim-12227-901  Sao Jose  dos
    Campos-SP-Brasil;  telephone +55 12 3927-5852 or +55 12 3309-0732; fax
    +55 12 3927-7546;  email distrib@embraer.com.br;  Internet http://www.
    flyembraer.com.

(4) You may view this service information at the FAA,  Transport  Airplane
    Directorate, 1601 Lind Avenue SW., Renton, WA.  For information on the
    availability of this material at the FAA, call 425-227-1221.

(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  Renton, Washington,  on May 2, 2017.  Michael Kaszycki, Acting
Manager, Transport Airplane Directorate, Aircraft Certification Service.

FOR FURTHER INFORMATION CONTACT: Todd Thompson, Aerospace Engineer, Inter-
national Branch,  ANM-116,  Transport Airplane Directorate, FAA, 1601 Lind
Avenue SW, Renton, WA 98057-3356; telephone 425-227-1175; fax 425-227-1149
PREAMBLE 

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-9507; Directorate Identifier 2016-NM-127-AD;
Amendment 39-18878; AD 2017-10-04]
RIN 2120-AA64

Airworthiness Directives; Embraer S.A. Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).

ACTION: Final rule.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for all
Embraer S.A. Model EMB-120, -120ER, -120FC, -120QC, and -120RT
airplanes. This AD was prompted by changes to the airworthiness
limitations, which add life-limited landing gear parts not previously
identified. This AD requires revising the maintenance or inspection
program, as applicable, to incorporate new airworthiness limitations
that add life limits for previously unidentified landing gear parts. We
are issuing this AD to address the unsafe condition on these products.

DATES: This AD is effective June 29, 2017.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of June 29, 2017.

ADDRESSES: For service information identified in this final rule,
contact Empresa Brasileira de Aeronautica S.A. (Embraer), Technical
Publications Section (PC 060), Av. Brigadeiro Faria Lima, 2170--Putim--
12227-901 Sao Jose dos Campos--SP--Brasil; telephone +55 12
3927-5852 or +55 12 3309-0732; fax +55 12 3927-7546; email
distrib@embraer.com.br; Internet http://www.flyembraer.com. You may
view this referenced service information at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the
availability of this material at the FAA, call 425-227-1221. It is also
available on the Internet at http://www.regulations.gov by searching
for and locating Docket No. FAA-2016-9507.

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-
9507; 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 (telephone
800-647-5527) is Docket 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: Todd Thompson, Aerospace Engineer,
International Branch, ANM-116, Transport Airplane Directorate, FAA,
1601 Lind Avenue SW., Renton, WA 98057-3356; telephone 425-227-1175;
fax 425-227-1149.

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 all Embraer S.A. Model EMB-
120, -120ER, -120FC, -120QC, and -120RT airplanes. The NPRM published
in the Federal Register on December 21, 2016 (81 FR 93647). The NPRM
was prompted by changes to the airworthiness limitations, which add
life-limited landing gear parts not previously identified. The NPRM
proposed to require revising the maintenance or inspection program, as
applicable, to incorporate new airworthiness limitations that add life
limits for previously unidentified landing gear parts. We are issuing
this AD to prevent life-limited landing gear parts from being used
beyond their safe-life limits, which could lead to collapse of the
landing gear.
The Agencia Nacional de Aviacao Civil (ANAC), which is the aviation authority
for Brazil, has issued Brazilian Airworthiness Directive 2016-07-02, dated July
27, 2016 (referred to after this as the Mandatory Continuing Airworthiness
Information, or ``the MCAI''), to correct an unsafe condition for all Embraer S.A.
Model EMB-120, -120ER, -120FC, -120QC, and -120RT airplanes. The MCAI
states:

This [Brazilian] AD was prompted by changes to the Airworthiness
Limitation Section of the Maintenance Review Board Report MRB 120-
HI-200, which add life-limited landing gear parts not previously
identified. We are issuing this [Brazilian] AD to prevent life-
limited landing gear parts from being used beyond their safe-life
limits, which could lead to collapse of the landing gear.

This AD requires revising the maintenance or inspection program, as
applicable, to incorporate new airworthiness limitations that add life
limits for previously unidentified landing gear parts. You may examine
the MCAI in the AD docket on the Internet at http://www.regulations.gov
by searching for and locating Docket No. FAA-2016-9507.

Comments

We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM or on the determination of
the cost to the public.

Conclusion

We reviewed the relevant data and determined that air safety and
the public interest require adopting this AD as proposed except for
minor editorial changes. We have determined that these minor changes:
Are consistent with the intent that was proposed in the
NPRM for correcting the unsafe condition; and
Do not add any additional burden upon the public than was
already proposed in the NPRM.

Related Service Information Under 1 CFR Part 51

We reviewed the following Embraer service information:
EMB-120 Brasilia Maintenance Review Board (MRB) Report,
Temporary Revision 28-1, dated May 17, 2016. This service information
adds life-limited landing gear parts not previously identified to the
airworthiness limitations section.
Alert Service Bulletin 120-32-A543, dated July 11, 2016.
This service information provides procedures for replacement of
affected parts.
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.

Costs of Compliance

We estimate that this AD affects 70 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
Maintenance program revision 1 work-hour x $85 per hour = $85
$0
$85
$5,950

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 that 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):