82 FR 16725 - Airworthiness Directives; Embraer S.A. Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 82, Issue 65 (April 6, 2017)

Page Range		16725-16728
FR Document		2017-05373
We are superseding Airworthiness Directive (AD) 2006-06-09, AD 2012-05-08, and AD 2012-07-08, for certain Embraer S.A. Model ERJ 170 airplanes. This AD requires revising the maintenance or inspection program, as applicable, to incorporate new airworthiness limitations. This AD was prompted by a determination that more restrictive airworthiness limitations are necessary. We are issuing this AD to address the unsafe condition on these products.
Federal Register, Volume 82 Issue 65 (Thursday, April 6, 2017)
[Federal Register Volume 82, Number 65 (Thursday, April 6, 2017)]
[Rules and Regulations]
[Pages 16725-16728]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2017-05373]



========================================================================
Rules and Regulations
                                                Federal Register
________________________________________________________________________

This section of the FEDERAL REGISTER contains regulatory documents 
having general applicability and legal effect, most of which are keyed 
to and codified in the Code of Federal Regulations, which is published 
under 50 titles pursuant to 44 U.S.C. 1510.

The Code of Federal Regulations is sold by the Superintendent of Documents. 

========================================================================


Federal Register / Vol. 82, No. 65 / Thursday, April 6, 2017 / Rules 
and Regulations

[[Page 16725]]



DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2014-0059; Directorate Identifier 2013-NM-075-AD; 
Amendment 39-18832; AD 2017-06-08]
RIN 2120-AA64


Airworthiness Directives; Embraer S.A. Airplanes

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

ACTION: Final rule.

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

SUMMARY: We are superseding Airworthiness Directive (AD) 2006-06-09, AD 
2012-05-08, and AD 2012-07-08, for certain Embraer S.A. Model ERJ 170 
airplanes. This AD requires revising the maintenance or inspection 
program, as applicable, to incorporate new airworthiness limitations. 
This AD was prompted by a determination that more restrictive 
airworthiness limitations are necessary. We are issuing this AD to 
address the unsafe condition on these products.

DATES: This AD is effective May 11, 2017.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of May 11, 
2017.
    The Director of the Federal Register approved the incorporation by 
reference of certain other publications listed in this AD as of May 29, 
2012 (77 FR 24342, April 24, 2012).

ADDRESSES: For service information identified in this final rule, 
contact Embraer S.A., Technical Publications Section (PC 060), Av. 
Brigadeiro Faria Lima, 2170-Putim-12227-901 S[atilde]o 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-2014-
0059.

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-2014-
0059; 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 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: Ana Martinez Hueto, Aerospace 
Engineer, International Branch, ANM-116, Transport Airplane 
Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; 
telephone 425-227-1622; fax 425-227-1320.

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a supplemental notice of proposed rulemaking (SNPRM) to 
amend 14 CFR part 39 to supersede AD 2006-06-09, Amendment 39-14518 (71 
FR 14365, March 22, 2006) (``AD 2006-06-06''); AD 2012-05-08, Amendment 
39-16980 (77 FR 16155, March 20, 2012) (``AD 2012-05-08''); and AD 
2012-07-08, Amendment 39-17014 (77 FR 24342, April 24, 2012) (``AD 
2012-07-08''); which applied to all Embraer S.A. Model ERJ 170 
airplanes.
    The SNPRM published in the Federal Register on September 12, 2016 
(81 FR 62668) (``the SNPRM''). We preceded the SNPRM with a notice of 
proposed rulemaking (NPRM) that published in the Federal Register on 
February 27, 2014 (79 FR 11013) (``the NPRM''). The NPRM was prompted 
by a determination that more restrictive maintenance requirements and 
airworthiness limitations are necessary than those required by AD 2012-
07-08. The NPRM proposed to require a revision to the maintenance or 
inspection program, as applicable, to incorporate new inspections. The 
SNPRM also proposed to revise the maintenance or inspection program, as 
applicable, to incorporate the new airworthiness limitations section of 
the maintenance review board report (MRBR), remove certain airplanes 
from the applicability, and supersede AD 2006-06-09, AD 2012-05-08, and 
AD 2012-07-08, which require tasks that are now included in the new 
revision of the MRBR.
    We are issuing this AD to detect and correct fatigue cracking of 
various PSEs; such cracking could result in reduced structural 
integrity of the airplane. We are also issuing this AD to prevent 
safety-significant latent failures; such failures, in combination with 
one or more other specified failures or events, could result in a 
hazardous or catastrophic failure condition of avionics, hydraulic 
systems, fire detection systems, fuel systems, or other critical 
systems. We are also issuing this AD to prevent the potential for 
ignition sources inside fuel tanks caused by latent failures, 
alterations, repairs, or maintenance actions; such failures, in 
combination with flammable fuel vapors, could result in fuel tank 
explosions and consequent loss of the airplane.
    The Ag[ecirc]ncia Nacional de Avia[ccedil][atilde]o Civil (ANAC), 
which is the aviation authority for Brazil, has issued Brazilian 
Airworthiness Directive 2015-06-01, effective June 2, 2015 (referred to 
after this as the Mandatory Continuing Airworthiness Information, or 
``the MCAI''), to correct an unsafe condition on certain Embraer S.A. 
Model ERJ 170 airplanes. The MCAI states:

    This [Brazilian] AD was prompted by a new revision to the 
airworthiness limitations of the Maintenance Review Board Report. 
This [Brazilian] AD is being issued to ensure that fatigue cracking 
of various principal structural elements is detected and corrected; 
such fatigue cracking, could adversely affect the structural 
integrity of these airplanes.

    The required action is revising the maintenance or inspection 
program, as applicable, to incorporate the airworthiness limitations in 
Appendix A--Airworthiness Limitations to the EMBRAER 170/175 
Maintenance

[[Page 16726]]

Review Board Report, MRB-1621, Revision 10, dated February 23, 2015, 
which is divided into four parts: Part 1--Certification Maintenance 
Requirements (CMR), Part 2--Airworthiness Limitation Inspections 
(ALI)--Structures, Part 3--Fuel System Limitation Items (FSL), and Part 
4--Life Limited Items (LLI).
    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-2014-
0059.

Comments

    We gave the public the opportunity to participate in developing 
this AD. The following presents the comment received on the SNPRM and 
the FAA's response to that comment.

Request To Allow Use of Future Revisions of Service Information

    SkyWest Airlines requested an allowance for future revisions of the 
EMBRAER 170/175 Maintenance Review Board Report, MRB-1621, (``MRB-
1621''), to be used as long as the tasks, intervals, and requirements 
haven't changed. The commenter stated that if the purpose of the SNPRM 
was to ensure that operators are using the new airworthiness 
limitations, it would seem that using later revisions of MRB-1621, as 
long as the tasks, intervals, and requirements haven't changed would 
make it easier to comply with the proposed requirements, and with the 
airworthiness limitation revisions that come with newly delivered 
airplanes. The commenter explained that operators might have to divide 
their maintenance and inspection program into groups of airplanes. For 
airplanes with the serial numbers identified in the SNPRM, operators 
would be required to use MRB-1621, Revision 10, and for newly delivered 
airplanes operators would be required to comply with the EMBRAER 170/
175 Maintenance Review Board Report revision released when the new 
airplanes were delivered.
    We agree with the commenter's observation that operators might have 
to use two different revisions of MRB-1621, the revision required by 
this final rule and the revision that is released with newly delivered 
airplanes; however, in an AD we may not refer to any document that does 
not yet exist. Allowing the use of a ``later revision'' of a specific 
service document violates Office of the Federal Register (OFR) 
regulations for approval of materials ``incorporated by reference,'' as 
specified in 1 CFR 51.1(f).
    Operators may request approval to use later revisions of a 
referenced document as an alternative method of compliance (AMOC) under 
the provisions specified in paragraph (k)(1) of this AD. The FAA 
routinely approves AMOCs that allow operators to incorporate later 
revisions of referenced ALI documents (issued after publication of the 
AD) into their maintenance or inspection programs instead of the 
revision required by an AD. This allows an operator to comply with both 
the AD, for affected airplanes, and the airplane's type design for 
later delivered airplanes. We have not changed this AD regarding this 
issue.

Conclusion

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

Related Service Information Under 1 CFR Part 51

    Embraer S.A. has issued Appendix A--Airworthiness Limitations to 
the EMBRAER 170/175 Maintenance Review Board Report, MRB-1621, Revision 
10, dated February 23, 2015, which is divided into four parts. As noted 
in the titles of each of these parts, Appendix A addresses 
Certification Maintenance Requirements (CMRs), airworthiness limitation 
inspections (ALIs) for structures, fuel system limitation items (FSLs), 
and life-limited items (LLI), and includes established tasks and 
intervals.
    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 286 airplanes of U.S. registry.
    We estimate the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                        Cost on
                    Action                                Labor cost               Parts     Cost per     U.S.
                                                                                    cost     product   operators
----------------------------------------------------------------------------------------------------------------
Revision of the maintenance or inspection      1 work-hour x $85 per hour = $85         $0        $85    $24,310
 program (retained action from AD 2012-07-08).
Revision of the maintenance or inspection      1 work-hour x $85 per hour = $85          0         85     24,310
 program (new action).
----------------------------------------------------------------------------------------------------------------

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

[[Page 16727]]

    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:
0
a. Removing Airworthiness Directives (AD) 2006-06-09, Amendment 39-
14518 (71 FR 14365, March 22, 2006); AD 2012-05-08, Amendment 39-16980 
(77 FR 16155, March 20, 2012); and AD 2012-07-08, Amendment 39-17014 
(77 FR 24342, April 24, 2012); and
0
b. Adding the following new AD:

2017-06-08 Embraer S.A.: Amendment 39-18832; Docket No. FAA-2014-
0059; Directorate Identifier 2013-NM-075-AD.

(a) Effective Date

    This AD is effective May 11, 2017.

(b) Affected ADs

    This AD replaces the ADs specified in paragraphs (b)(1), (b)(2), 
and (b)(3) of this AD:
    (1) AD 2006-06-09, Amendment 39-14518 (71 FR 14365, March 22, 
2006) (``AD 2006-06-09'').
    (2) AD 2012-05-08, Amendment 39-16980 (77 FR 16155, March 20, 
2012) (``AD 2012-05-08'').
    (3) AD 2012-07-08, Amendment 39-17014 (77 FR 24342, April 24, 
2012) (``AD 2012-07-08'').

(c) Applicability

    This AD applies to Embraer S.A. Model ERJ 170-100 LR, -100 STD, 
-100 SE, and -100 SU airplanes; and Model ERJ 170-200 LR, -200 SU, 
and -200 STD airplanes; certificated in any category; manufacturer 
serial numbers 17000002, 17000004 through 17000013 inclusive, and 
17000015 through 17000453 inclusive.

(d) Subject

    Air Transport Association (ATA) of America Codes 27, Flight 
controls; 28, Fuel; 52, Doors; 53, Fuselage; 54, Nacelles/pylons; 
55, Stabilizers; 57, Wings; 71, Powerplant; and 78, Exhaust.

(e) Reason

    This AD was prompted by a determination that more restrictive 
airworthiness limitations are necessary. We are issuing this AD to 
detect and correct fatigue cracking of various principal structural 
elements (PSEs); such cracking could result in reduced structural 
integrity of the airplane. We are also issuing this AD to prevent 
safety-significant latent failures; such failures, in combination 
with one or more other specified failures or events, could result in 
a hazardous or catastrophic failure condition of avionics, hydraulic 
systems, fire detection systems, fuel systems, or other critical 
systems. We are also issuing this AD to prevent the potential for 
ignition sources inside fuel tanks caused by latent failures, 
alterations, repairs, or maintenance actions; such failures, in 
combination with flammable fuel vapors, could result in fuel tank 
explosions and consequent loss of the airplane.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Retained Maintenance Program Revision, With No Changes

    This paragraph restates the action required by paragraph (i) of 
AD 2012-07-08, with no changes.
    (1) Within 60 days after May 29, 2012 (the effective date of AD 
2012-07-08): Revise the maintenance program to incorporate the new 
or revised tasks specified in Part 2--Airworthiness Limitation 
Inspection (ALI)--Structures, of Appendix A, Airworthiness 
Limitations, to the EMBRAER 170 Maintenance Review Board Report 
(MRBR), MRB-1621, Revision 7, dated November 11, 2010; and EMBRAER 
Temporary Revision 7-1, dated February 11, 2011, to Part 2--
Airworthiness Limitation Inspection (ALI)--Structures, of Appendix 
A, Airworthiness Limitations, to the EMBRAER 170 MRBR, MRB-1621, 
Revision 7, dated November 11, 2010; with the initial compliance 
times and intervals specified in these documents.
    (2) The initial compliance times for the tasks start from the 
date of issuance of the original Brazilian airworthiness certificate 
or the date of issuance of the original Brazilian export certificate 
of airworthiness of the applicable airplane at the applicable time 
specified in the tasks, or within 600 flight cycles after revising 
the maintenance program, whichever occurs later. For certain tasks, 
the compliance times depend on the pre-modification and post-
modification status of the actions specified in the associated 
service bulletin, as specified in the ``Applicability'' column of 
Part 2--Airworthiness Limitation Inspection (ALI)--Structures, of 
Appendix A, Airworthiness Limitations, to the EMBRAER 170 MRBR, MRB-
1621, Revision 7, dated November 11, 2010; and EMBRAER Temporary 
Revision 7-1, dated February 11, 2011, to Part 2--Airworthiness 
Limitation Inspection (ALI)--Structures, of Appendix A, 
Airworthiness Limitations, to the EMBRAER 170 MRBR, MRB-1621, 
Revision 7, dated November 11, 2010.

(h) Retained No Alternative Actions Intervals, and/or Critical Design 
Configuration Control Limitations (CDCCLs), With New Exception

    This paragraph restates the action required by paragraph (j) of 
AD 2012-07-08, with a new exception. Except as required by paragraph 
(i) of this AD, after accomplishing the revisions required by 
paragraph (g) of this AD, no alternative actions (e.g., 
inspections), intervals, and/or CDCCLs may be used other than those 
specified in Part 2--Airworthiness Limitation Inspection (ALI)--
Structures, of Appendix A, Airworthiness Limitations, of the EMBRAER 
170 MRBR MRB-1621, Revision 7, dated November 11, 2010; and EMBRAER 
Temporary Revision 7-1, dated February 11, 2011, to Part 2--
Airworthiness Limitation Inspection (ALI)--Structures, of Appendix 
A, Airworthiness Limitations, of the EMBRAER 170 MRBR, MRB-1621, 
Revision 7, dated November 11, 2010; unless the actions, intervals, 
and/or CDCCLs are approved as an alternative method of compliance 
(AMOC) in accordance with the procedures specified in paragraph 
(k)(1) of this AD.

(i) New Revision of Maintenance or Inspection Program

    Within 12 months after the effective date of this AD, revise the 
maintenance or inspection program, as applicable, to incorporate the 
airworthiness limitations specified in Part 1--Certification 
Maintenance Requirements (CMR); Part 2--Airworthiness Limitation 
Inspections (ALI)--Structures; Part 3--Fuel System Limitation Items 
(FSL); and Part 4--Life Limited Items (LLI); of Appendix A--
Airworthiness Limitations; of the EMBRAER 170/175 MRBR, MRB-1621, 
Revision 10, dated February 23, 2015. The initial compliance times 
and repetitive intervals are specified in the applicable part of the 
EMBRAER 170/175 MRBR, MRB-1621, Revision 10, dated February 23, 
2015. Accomplishing the revision to the maintenance or inspection 
program required by this paragraph terminates the requirements of 
paragraph (g) of this AD.

(j) No Alternative Actions, Intervals, or CDCCLs

    After accomplishing the revision required by paragraph (i) of 
this AD, no alternative actions (e.g., inspections), intervals, or 
CDCCLs may be used unless the actions, intervals, and CDCCLs are 
approved as an AMOC 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 ATTN:

[[Page 16728]]

Ana Martinez Hueto, Aerospace Engineer, International Branch, ANM-
116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., 
Renton, WA 98057-3356; telephone 425-227-1622; fax 425-227-1320. 
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: As of the effective date of 
this AD, 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 Ag[ecirc]ncia Nacional de 
Avia[ccedil][atilde]o 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

    Refer to Mandatory Continuing Airworthiness Information (MCAI) 
Brazilian Airworthiness Directive 2015-06-01, effective June 2, 
2015, 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-2014-0059.

(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.
    (3) The following service information was approved for IBR on 
May 11, 2017.
    (i) Appendix A--Airworthiness Limitations to the EMBRAER 170/175 
Maintenance Review Board Report, MRB-1621, Revision 10, dated 
February 23, 2015.
    (ii) Reserved.
    (4) The following service information was approved for IBR on 
May 29, 2012 (77 FR 24342, April 24, 2012).
    (i) Part 2--Airworthiness Limitation Inspection (ALI)--
Structures, of Appendix A, Airworthiness Limitations, of the EMBRAER 
170 Maintenance Review Board Report, MRB-1621, Revision 7, dated 
November 11, 2010. Only the title page of this document specifies 
the revision level.
    (ii) EMBRAER Temporary Revision 7-1, dated February 11, 2011, to 
Part 2--Airworthiness Limitation Inspection (ALI)--Structures, of 
Appendix A, Airworthiness Limitations, of the EMBRAER 170 
Maintenance Review Board Report, MRB-1621, Revision 7, dated 
November 11, 2010.
    (5) For service information identified in this AD, contact 
Embraer S.A., Technical Publications Section (PC 060), Av. 
Brigadeiro Faria Lima, 2170-Putim-12227-901 S[atilde]o 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.
    (6) 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.
    (7) 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 March 10, 2017.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2017-05373 Filed 4-5-17; 8:45 am]
 BILLING CODE 4910-13-P
16725

Rules and Regulations Federal Register
Vol. 82, No. 65

Thursday, April 6, 2017

This section of the FEDERAL REGISTER this referenced service information at airworthiness limitations are necessary
contains regulatory documents having general the FAA, Transport Airplane than those required by AD 2012–07–08.
applicability and legal effect, most of which Directorate, 1601 Lind Avenue SW., The NPRM proposed to require a
are keyed to and codified in the Code of Renton, WA. For information on the revision to the maintenance or
Federal Regulations, which is published under availability of this material at the FAA, inspection program, as applicable, to
50 titles pursuant to 44 U.S.C. 1510.
call 425–227–1221. It is also available incorporate new inspections. The
The Code of Federal Regulations is sold by on the Internet at http:// SNPRM also proposed to revise the
the Superintendent of Documents. www.regulations.gov by searching for maintenance or inspection program, as
and locating Docket No. FAA–2014– applicable, to incorporate the new
0059. airworthiness limitations section of the
DEPARTMENT OF TRANSPORTATION maintenance review board report
Examining the AD Docket
(MRBR), remove certain airplanes from
Federal Aviation Administration You may examine the AD docket on the applicability, and supersede AD
the Internet at http:// 2006–06–09, AD 2012–05–08, and AD
14 CFR Part 39 www.regulations.gov by searching for 2012–07–08, which require tasks that
[Docket No. FAA–2014–0059; Directorate and locating Docket No. FAA–2014– are now included in the new revision of
Identifier 2013–NM–075–AD; Amendment 0059; or in person at the Docket the MRBR.
39–18832; AD 2017–06–08] Management Facility between 9 a.m. We are issuing this AD to detect and
RIN 2120–AA64
and 5 p.m., Monday through Friday, correct fatigue cracking of various PSEs;
except Federal holidays. The AD docket such cracking could result in reduced
Airworthiness Directives; Embraer S.A. contains this AD, the regulatory structural integrity of the airplane. We
Airplanes evaluation, any comments received, and are also issuing this AD to prevent
other information. The address for the safety-significant latent failures; such
AGENCY: Federal Aviation Docket Office (telephone 800–647–5527) failures, in combination with one or
Administration (FAA), Department of is Docket Management Facility, U.S. more other specified failures or events,
Transportation (DOT). Department of Transportation, Docket could result in a hazardous or
ACTION: Final rule. Operations, M–30, West Building catastrophic failure condition of
Ground Floor, Room W12–140, 1200 avionics, hydraulic systems, fire
SUMMARY: We are superseding New Jersey Avenue SE., Washington, detection systems, fuel systems, or other
Airworthiness Directive (AD) 2006–06– DC 20590. critical systems. We are also issuing this
09, AD 2012–05–08, and AD 2012–07–
FOR FURTHER INFORMATION CONTACT: Ana AD to prevent the potential for ignition
08, for certain Embraer S.A. Model ERJ
Martinez Hueto, Aerospace Engineer, sources inside fuel tanks caused by
170 airplanes. This AD requires revising
International Branch, ANM–116, latent failures, alterations, repairs, or
the maintenance or inspection program,
Transport Airplane Directorate, FAA, maintenance actions; such failures, in
as applicable, to incorporate new
1601 Lind Avenue SW., Renton, WA combination with flammable fuel
airworthiness limitations. This AD was
98057–3356; telephone 425–227–1622; vapors, could result in fuel tank
prompted by a determination that more
fax 425–227–1320. explosions and consequent loss of the
restrictive airworthiness limitations are
SUPPLEMENTARY INFORMATION: airplane.
necessary. We are issuing this AD to
The Agência Nacional de Aviação
address the unsafe condition on these Discussion Civil (ANAC), which is the aviation
products.
We issued a supplemental notice of authority for Brazil, has issued Brazilian
DATES: This AD is effective May 11, proposed rulemaking (SNPRM) to Airworthiness Directive 2015–06–01,
2017. amend 14 CFR part 39 to supersede AD effective June 2, 2015 (referred to after
The Director of the Federal Register 2006–06–09, Amendment 39–14518 (71 this as the Mandatory Continuing
approved the incorporation by reference FR 14365, March 22, 2006) (‘‘AD 2006– Airworthiness Information, or ‘‘the
of a certain publication listed in this AD 06–06’’); AD 2012–05–08, Amendment MCAI’’), to correct an unsafe condition
as of May 11, 2017. 39–16980 (77 FR 16155, March 20, on certain Embraer S.A. Model ERJ 170
The Director of the Federal Register 2012) (‘‘AD 2012–05–08’’); and AD airplanes. The MCAI states:
approved the incorporation by reference 2012–07–08, Amendment 39–17014 (77 This [Brazilian] AD was prompted by a
of certain other publications listed in FR 24342, April 24, 2012) (‘‘AD 2012– new revision to the airworthiness limitations
this AD as of May 29, 2012 (77 FR 07–08’’); which applied to all Embraer of the Maintenance Review Board Report.
24342, April 24, 2012). S.A. Model ERJ 170 airplanes. This [Brazilian] AD is being issued to ensure
ADDRESSES: For service information The SNPRM published in the Federal that fatigue cracking of various principal
identified in this final rule, contact Register on September 12, 2016 (81 FR structural elements is detected and corrected;
Embraer S.A., Technical Publications 62668) (‘‘the SNPRM’’). We preceded such fatigue cracking, could adversely affect
mstockstill on DSK3G9T082PROD with RULES

Section (PC 060), Av. Brigadeiro Faria the SNPRM with a notice of proposed the structural integrity of these airplanes.
Lima, 2170–Putim–12227–901 São Jose rulemaking (NPRM) that published in The required action is revising the
dos Campos–SP–BRASIL; telephone +55 the Federal Register on February 27, maintenance or inspection program, as
12 3927–5852 or +55 12 3309–0732; fax 2014 (79 FR 11013) (‘‘the NPRM’’). The applicable, to incorporate the
+55 12 3927–7546; email distrib@ NPRM was prompted by a airworthiness limitations in Appendix
embraer.com.br; Internet http:// determination that more restrictive A—Airworthiness Limitations to the
www.flyembraer.com. You may view maintenance requirements and EMBRAER 170/175 Maintenance

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16726 Federal Register / Vol. 82, No. 65 / Thursday, April 6, 2017 / Rules and Regulations

Review Board Report, MRB–1621, and inspection program into groups of Conclusion
Revision 10, dated February 23, 2015, airplanes. For airplanes with the serial We reviewed the available data,
which is divided into four parts: Part numbers identified in the SNPRM, including the comment received, and
1—Certification Maintenance operators would be required to use determined that air safety and the
Requirements (CMR), Part 2— MRB–1621, Revision 10, and for newly public interest require adopting this AD
Airworthiness Limitation Inspections delivered airplanes operators would be as proposed, with minor editorial
(ALI)—Structures, Part 3—Fuel System required to comply with the EMBRAER changes. We have determined that these
Limitation Items (FSL), and Part 4—Life 170/175 Maintenance Review Board changes:
Limited Items (LLI).
You may examine the MCAI in the
Report revision released when the new • Are consistent with the intent that
airplanes were delivered. was proposed in the SNPRM for
AD docket on the Internet at http://
www.regulations.gov by searching for We agree with the commenter’s correcting the unsafe condition; and
and locating Docket No. FAA–2014– observation that operators might have to • Do not add any additional burden
0059. use two different revisions of MRB– upon the public than was already
1621, the revision required by this final proposed in the SNPRM.
Comments
rule and the revision that is released Related Service Information Under 1
We gave the public the opportunity to with newly delivered airplanes; CFR Part 51
participate in developing this AD. The however, in an AD we may not refer to
following presents the comment Embraer S.A. has issued Appendix
any document that does not yet exist. A—Airworthiness Limitations to the
received on the SNPRM and the FAA’s Allowing the use of a ‘‘later revision’’ of
response to that comment. EMBRAER 170/175 Maintenance
a specific service document violates Review Board Report, MRB–1621,
Request To Allow Use of Future Office of the Federal Register (OFR) Revision 10, dated February 23, 2015,
Revisions of Service Information regulations for approval of materials which is divided into four parts. As
SkyWest Airlines requested an ‘‘incorporated by reference,’’ as noted in the titles of each of these parts,
allowance for future revisions of the specified in 1 CFR 51.1(f). Appendix A addresses Certification
EMBRAER 170/175 Maintenance Operators may request approval to use Maintenance Requirements (CMRs),
Review Board Report, MRB–1621, later revisions of a referenced document airworthiness limitation inspections
(‘‘MRB–1621’’), to be used as long as the as an alternative method of compliance (ALIs) for structures, fuel system
tasks, intervals, and requirements (AMOC) under the provisions specified limitation items (FSLs), and life-limited
haven’t changed. The commenter stated in paragraph (k)(1) of this AD. The FAA items (LLI), and includes established
that if the purpose of the SNPRM was tasks and intervals.
routinely approves AMOCs that allow
to ensure that operators are using the This service information is reasonably
operators to incorporate later revisions
new airworthiness limitations, it would available because the interested parties
seem that using later revisions of MRB– of referenced ALI documents (issued
have access to it through their normal
1621, as long as the tasks, intervals, and after publication of the AD) into their
course of business or by the means
requirements haven’t changed would maintenance or inspection programs
identified in the ADDRESSES section.
make it easier to comply with the instead of the revision required by an
proposed requirements, and with the AD. This allows an operator to comply Costs of Compliance
airworthiness limitation revisions that with both the AD, for affected airplanes, We estimate that this AD affects 286
come with newly delivered airplanes. and the airplane’s type design for later airplanes of U.S. registry.
The commenter explained that operators delivered airplanes. We have not We estimate the following costs to
might have to divide their maintenance changed this AD regarding this issue. comply with this AD:
ESTIMATED COSTS
Cost on
Cost per
Action Labor cost Parts cost U.S.
product operators

Revision of the maintenance or inspection program (retained action 1 work-hour × $85 per hour = $85 ..... $0 $85 $24,310
from AD 2012–07–08).
Revision of the maintenance or inspection program (new action) ..... 1 work-hour × $85 per hour = $85 ..... 0 85 24,310

Authority for This Rulemaking promoting safe flight of civil aircraft in not have a substantial direct effect on
air commerce by prescribing regulations the States, on the relationship between
Title 49 of the United States Code for practices, methods, and procedures the national government and the States,
specifies the FAA’s authority to issue the Administrator finds necessary for or on the distribution of power and
rules on aviation safety. Subtitle I, safety in air commerce. This regulation responsibilities among the various
section 106, describes the authority of is within the scope of that authority levels of government.
the FAA Administrator. ‘‘Subtitle VII: because it addresses an unsafe condition For the reasons discussed above, I
Aviation Programs,’’ describes in more that is likely to exist or develop on certify that this AD:
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detail the scope of the Agency’s products identified in this rulemaking 1. Is not a ‘‘significant regulatory
authority. action. action’’ under Executive Order 12866;
We are issuing this rulemaking under 2. Is not a ‘‘significant rule’’ under the
the authority described in ‘‘Subtitle VII, Regulatory Findings DOT Regulatory Policies and Procedures
Part A, Subpart III, Section 44701: We determined that this AD will not (44 FR 11034, February 26, 1979);
General requirements.’’ Under that have federalism implications under 3. Will not affect intrastate aviation in
section, Congress charges the FAA with Executive Order 13132. This AD will Alaska; and

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4. Will not have a significant limitations are necessary. We are issuing this (h) Retained No Alternative Actions
economic impact, positive or negative, AD to detect and correct fatigue cracking of Intervals, and/or Critical Design
on a substantial number of small entities various principal structural elements (PSEs); Configuration Control Limitations (CDCCLs),
under the criteria of the Regulatory such cracking could result in reduced With New Exception
Flexibility Act. structural integrity of the airplane. We are This paragraph restates the action required
also issuing this AD to prevent safety- by paragraph (j) of AD 2012–07–08, with a
List of Subjects in 14 CFR Part 39 significant latent failures; such failures, in new exception. Except as required by
Air transportation, Aircraft, Aviation combination with one or more other paragraph (i) of this AD, after accomplishing
safety, Incorporation by reference, specified failures or events, could result in a the revisions required by paragraph (g) of this
hazardous or catastrophic failure condition of AD, no alternative actions (e.g., inspections),
Safety. intervals, and/or CDCCLs may be used other
avionics, hydraulic systems, fire detection
Adoption of the Amendment systems, fuel systems, or other critical than those specified in Part 2—Airworthiness
systems. We are also issuing this AD to Limitation Inspection (ALI)—Structures, of
Accordingly, under the authority Appendix A, Airworthiness Limitations, of
prevent the potential for ignition sources
delegated to me by the Administrator, the EMBRAER 170 MRBR MRB–1621,
inside fuel tanks caused by latent failures,
the FAA amends 14 CFR part 39 as Revision 7, dated November 11, 2010; and
alterations, repairs, or maintenance actions;
follows: such failures, in combination with flammable
EMBRAER Temporary Revision 7–1, dated
February 11, 2011, to Part 2—Airworthiness
fuel vapors, could result in fuel tank
PART 39—AIRWORTHINESS Limitation Inspection (ALI)—Structures, of
explosions and consequent loss of the Appendix A, Airworthiness Limitations, of
DIRECTIVES
airplane. the EMBRAER 170 MRBR, MRB–1621,
■ 1. The authority citation for part 39 (f) Compliance Revision 7, dated November 11, 2010; unless
continues to read as follows: the actions, intervals, and/or CDCCLs are
Comply with this AD within the approved as an alternative method of
Authority: 49 U.S.C. 106(g), 40113, 44701. compliance times specified, unless already compliance (AMOC) in accordance with the
done. procedures specified in paragraph (k)(1) of
§ 39.13 [Amended]
(g) Retained Maintenance Program Revision, this AD.
■ 2. The FAA amends § 39.13 by:
With No Changes (i) New Revision of Maintenance or
■ a. Removing Airworthiness Directives
(AD) 2006–06–09, Amendment 39– This paragraph restates the action required Inspection Program
14518 (71 FR 14365, March 22, 2006); by paragraph (i) of AD 2012–07–08, with no Within 12 months after the effective date
AD 2012–05–08, Amendment 39–16980 changes. of this AD, revise the maintenance or
(77 FR 16155, March 20, 2012); and AD (1) Within 60 days after May 29, 2012 (the inspection program, as applicable, to
effective date of AD 2012–07–08): Revise the incorporate the airworthiness limitations
2012–07–08, Amendment 39–17014 (77 specified in Part 1—Certification
maintenance program to incorporate the new
FR 24342, April 24, 2012); and Maintenance Requirements (CMR); Part 2—
or revised tasks specified in Part 2—
■ b. Adding the following new AD: Airworthiness Limitation Inspections (ALI)—
Airworthiness Limitation Inspection (ALI)—
2017–06–08 Embraer S.A.: Amendment 39– Structures, of Appendix A, Airworthiness Structures; Part 3—Fuel System Limitation
18832; Docket No. FAA–2014–0059; Limitations, to the EMBRAER 170 Items (FSL); and Part 4—Life Limited Items
Directorate Identifier 2013–NM–075–AD. Maintenance Review Board Report (MRBR), (LLI); of Appendix A—Airworthiness
MRB–1621, Revision 7, dated November 11, Limitations; of the EMBRAER 170/175
(a) Effective Date MRBR, MRB–1621, Revision 10, dated
2010; and EMBRAER Temporary Revision 7–
This AD is effective May 11, 2017. February 23, 2015. The initial compliance
1, dated February 11, 2011, to Part 2—
(b) Affected ADs times and repetitive intervals are specified in
Airworthiness Limitation Inspection (ALI)—
the applicable part of the EMBRAER 170/175
This AD replaces the ADs specified in Structures, of Appendix A, Airworthiness MRBR, MRB–1621, Revision 10, dated
paragraphs (b)(1), (b)(2), and (b)(3) of this AD: Limitations, to the EMBRAER 170 MRBR, February 23, 2015. Accomplishing the
(1) AD 2006–06–09, Amendment 39–14518 MRB–1621, Revision 7, dated November 11, revision to the maintenance or inspection
(71 FR 14365, March 22, 2006) (‘‘AD 2006– 2010; with the initial compliance times and program required by this paragraph
06–09’’). intervals specified in these documents. terminates the requirements of paragraph (g)
(2) AD 2012–05–08, Amendment 39–16980 (2) The initial compliance times for the of this AD.
(77 FR 16155, March 20, 2012) (‘‘AD 2012– tasks start from the date of issuance of the
05–08’’). original Brazilian airworthiness certificate or (j) No Alternative Actions, Intervals, or
(3) AD 2012–07–08, Amendment 39–17014 the date of issuance of the original Brazilian CDCCLs
(77 FR 24342, April 24, 2012) (‘‘AD 2012–07– export certificate of airworthiness of the After accomplishing the revision required
08’’). by paragraph (i) of this AD, no alternative
applicable airplane at the applicable time
(c) Applicability specified in the tasks, or within 600 flight actions (e.g., inspections), intervals, or
cycles after revising the maintenance CDCCLs may be used unless the actions,
This AD applies to Embraer S.A. Model
program, whichever occurs later. For certain intervals, and CDCCLs are approved as an
ERJ 170–100 LR, –100 STD, –100 SE, and
–100 SU airplanes; and Model ERJ 170–200 tasks, the compliance times depend on the AMOC in accordance with the procedures
LR, –200 SU, and –200 STD airplanes; pre-modification and post-modification specified in paragraph (k)(1) of this AD.
certificated in any category; manufacturer status of the actions specified in the (k) Other FAA AD Provisions
serial numbers 17000002, 17000004 through associated service bulletin, as specified in the
The following provisions also apply to this
17000013 inclusive, and 17000015 through ‘‘Applicability’’ column of Part 2—
17000453 inclusive. AD:
Airworthiness Limitation Inspection (ALI)— (1) Alternative Methods of Compliance
(d) Subject Structures, of Appendix A, Airworthiness (AMOCs): The Manager, International
Limitations, to the EMBRAER 170 MRBR, Branch, ANM–116, Transport Airplane
Air Transport Association (ATA) of
MRB–1621, Revision 7, dated November 11,
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America Codes 27, Flight controls; 28, Fuel; Directorate, FAA, has the authority to
52, Doors; 53, Fuselage; 54, Nacelles/pylons; 2010; and EMBRAER Temporary Revision 7– approve AMOCs for this AD, if requested
55, Stabilizers; 57, Wings; 71, Powerplant; 1, dated February 11, 2011, to Part 2— using the procedures found in 14 CFR 39.19.
and 78, Exhaust. Airworthiness Limitation Inspection (ALI)— In accordance with 14 CFR 39.19, send your
Structures, of Appendix A, Airworthiness request to your principal inspector or local
(e) Reason Limitations, to the EMBRAER 170 MRBR, Flight Standards District Office, as
This AD was prompted by a determination MRB–1621, Revision 7, dated November 11, appropriate. If sending information directly
that more restrictive airworthiness 2010. to the International Branch, send it to ATTN:

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16728 Federal Register / Vol. 82, No. 65 / Thursday, April 6, 2017 / Rules and Regulations

Ana Martinez Hueto, Aerospace Engineer, (6) You may view this service information • Federal eRulemaking Portal: Go to
International Branch, ANM–116, Transport at the FAA, Transport Airplane Directorate, http://www.regulations.gov. Follow the
Airplane Directorate, FAA, 1601 Lind 1601 Lind Avenue SW., Renton, WA. For instructions for submitting comments.
Avenue SW., Renton, WA 98057–3356; information on the availability of this • Fax: 202–493–2251.
telephone 425–227–1622; fax 425–227–1320. material at the FAA, call 425 227–1221.
Information may be emailed to: 9-ANM-116- (7) You may view this service information
• Mail: U.S. Department of
AMOC-REQUESTS@faa.gov. Before using that is incorporated by reference at the Transportation, Docket Operations, M–
any approved AMOC, notify your appropriate National Archives and Records 30, West Building Ground Floor, Room
principal inspector, or lacking a principal Administration (NARA). For information on W12–140, 1200 New Jersey Avenue SE.,
inspector, the manager of the local flight the availability of this material at NARA, call Washington, DC 20590.
standards district office/certificate holding 202–741–6030, or go to: http:// • Hand Delivery: U.S. Department of
district office. www.archives.gov/federal-register/cfr/ibr- Transportation, Docket Operations, M–
(2) Contacting the Manufacturer: As of the locations.html. 30, West Building Ground Floor, Room
effective date of this AD, for any requirement W12–140, 1200 New Jersey Avenue SE.,
Issued in Renton, Washington, on March
in this AD to obtain corrective actions from
10, 2017. Washington, DC 20590, between 9 a.m.
a manufacturer, the action must be
accomplished using a method approved by Michael Kaszycki, and 5 p.m., Monday through Friday,
the Manager, International Branch, ANM– Acting Manager, Transport Airplane except Federal holidays.
116, Transport Airplane Directorate, FAA; or Directorate, Aircraft Certification Service. For service information identified in
the Agência Nacional de Aviação Civil [FR Doc. 2017–05373 Filed 4–5–17; 8:45 am] this AD, contact General Electric
(ANAC); or ANAC’s authorized Designee. If BILLING CODE 4910–13–P Company, One Neumann Way, Room
approved by the ANAC Designee, the 285, Cincinnati, OH; phone: 513–552–
approval must include the Designee’s 3272; email: geae.aoc@ge.com. You may
authorized signature. view this service information at the
DEPARTMENT OF TRANSPORTATION
(l) Related Information FAA, Engine & Propeller Directorate,
Refer to Mandatory Continuing Federal Aviation Administration 1200 District Avenue, Burlington, MA.
Airworthiness Information (MCAI) Brazilian For information on the availability of
Airworthiness Directive 2015–06–01, 14 CFR Part 39 this material at the FAA, call 781–238–
effective June 2, 2015, for related [Docket No. FAA–2013–0879; Directorate 7125. It is also available on the internet
information. This MCAI may be found in the Identifier 2013–NE–30–AD; Amendment 39– at http://www.regulations.gov by
AD docket on the Internet at http:// 18842; AD 2017–07–04] searching for and locating Docket No.
www.regulations.gov by searching for and FAA–2013–0879.
locating Docket No. FAA–2014–0059. RIN 2120–AA64
(m) Material Incorporated by Reference
Examining the AD Docket
Airworthiness Directives; General
(1) The Director of the Federal Register Electric Company Turbofan Engines You may examine the AD docket on
approved the incorporation by reference the Internet at http://
(IBR) of the service information listed in this AGENCY: Federal Aviation www.regulations.gov by searching for
paragraph under 5 U.S.C. 552(a) and 1 CFR Administration (FAA), DOT. and locating Docket No. FAA–2013–
part 51. ACTION: Final rule; request for 0879; or in person at the Docket
(2) You must use this service information Management Facility between 9 a.m.
as applicable to do the actions required by
comments.
and 5 p.m., Monday through Friday,
this AD, unless this AD specifies otherwise.
SUMMARY: We are superseding except Federal holidays. The AD docket
(3) The following service information was
approved for IBR on May 11, 2017. Airworthiness Directive (AD) 2013–24– contains this AD, the regulatory
(i) Appendix A—Airworthiness 17 for General Electric Company (GE) evaluation, any comments received, and
Limitations to the EMBRAER 170/175 GE90–110B1 and GE90–115B turbofan other information. The street address for
Maintenance Review Board Report, MRB– engines with certain high-pressure the Docket Office (phone: 800–647–
1621, Revision 10, dated February 23, 2015. compressor (HPC) rotor stage 2–5 spools 5527) is in the ADDRESSES section.
(ii) Reserved. installed. AD 2013–24–17 required Comments will be available in the AD
(4) The following service information was removing these spools from service at docket shortly after receipt.
approved for IBR on May 29, 2012 (77 FR times determined by a drawdown plan.
24342, April 24, 2012). FOR FURTHER INFORMATION CONTACT: John
This AD retains the same requirements Frost, Aerospace Engineer, Engine
(i) Part 2—Airworthiness Limitation
Inspection (ALI)—Structures, of Appendix A, as AD 2013–24–17. This AD also adds Certification Office, FAA, Engine &
Airworthiness Limitations, of the EMBRAER additional part number (P/N) HPC Propeller Directorate, 1200 District
170 Maintenance Review Board Report, spools to the applicability. This AD was Avenue, Burlington, MA 01803; phone:
MRB–1621, Revision 7, dated November 11, prompted by reports of cracking on 781–238–7756; fax: 781–238–7199;
2010. Only the title page of this document these additional spools. We are issuing email: john.frost@faa.gov.
specifies the revision level. this AD to correct the unsafe condition
(ii) EMBRAER Temporary Revision 7–1, SUPPLEMENTARY INFORMATION:
on these products.
dated February 11, 2011, to Part 2— Discussion
DATES: This AD is effective April 21,
Airworthiness Limitation Inspection (ALI)—
Structures, of Appendix A, Airworthiness 2017. On November 27, 2013, we issued AD
Limitations, of the EMBRAER 170 The Director of the Federal Register 2013–24–17, Amendment 39–17694 (78
Maintenance Review Board Report, MRB– approved the incorporation by reference FR 76045, December 16, 2013), (‘‘AD
1621, Revision 7, dated November 11, 2010. of a certain publication listed in this AD 2013–24–17’’), for GE GE90–110B1 and
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(5) For service information identified in as of April 21, 2017. GE90–115B turbofan engines with
this AD, contact Embraer S.A., Technical We must receive any comments on certain HPC rotor stage 2–5 spools
Publications Section (PC 060), Av. Brigadeiro this AD by May 22, 2017.
Faria Lima, 2170–Putim–12227–901 São Jose installed. AD 2013–24–17 required
dos Campos–SP–BRASIL; telephone +55 12 ADDRESSES: You may send comments, removing these spools from service at
3927–5852 or +55 12 3309–0732; fax +55 12 using the procedures found in 14 CFR times determined by a drawdown plan.
3927–7546; email distrib@embraer.com.br; 11.43 and 11.45, by any of the following AD 2013–24–17 resulted from reports of
Internet http://www.flyembraer.com. methods: cracks in HPC rotor stage 2–5 spool aft

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Document Created: 2017-04-06 01:46:47
Document Modified: 2017-04-06 01:46:47
Category		Regulatory Information
Collection		Federal Register
sudoc Class		AE 2.7: GS 4.107: AE 2.106:
Publisher		Office of the Federal Register, National Archives and Records Administration
Section		Rules and Regulations
Action		Final rule.
Dates		This AD is effective May 11, 2017.
Contact		Ana Martinez Hueto, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; telephone 425-227-1622; fax 425-227-1320.
FR Citation		82 FR 16725
RIN Number		2120-AA64
CFR Associated		Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety
82 FR 16725 - Airworthiness Directives; Embraer S.A. Airplanes

DEPARTMENT OF TRANSPORTATIONFederal Aviation Administration

Federal Register Volume 82, Issue 65 (April 6, 2017)

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
