Rule2025-02381
Airworthiness Directives; Embraer S.A. (Type Certificate Previously Held by Yaborã Indústria Aeronáutica S.A.; Embraer S.A.) Airplanes
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
February 10, 2025
Effective
March 17, 2025
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is superseding Airworthiness Directive (AD) 2022-25- 07, which applied to all Embraer S.A. Model ERJ 170-100 LR, -100 STD, - 100 SE, and -100 SU airplanes; and Model ERJ 170-200 LR, -200 SU, -200 STD, and -200 LL airplanes. AD 2022-25-07 required revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD continues to require all actions in AD 2022-25-07 and requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations, and certain structural modifications, as specified in an Ag[ecirc]ncia Nacional de Avia[ccedil][atilde]o Civil (ANAC) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 90 Issue 26 (Monday, February 10, 2025)</title>
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[Federal Register Volume 90, Number 26 (Monday, February 10, 2025)]
[Rules and Regulations]
[Pages 9197-9201]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-02381]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2024-1887; Project Identifier MCAI-2023-01237-T;
Amendment 39-22929; AD 2025-01-05]
RIN 2120-AA64
Airworthiness Directives; Embraer S.A. (Type Certificate
Previously Held by Yabor[atilde] Ind[uacute]stria Aeron[aacute]utica
S.A.; Embraer S.A.) Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2022-25-
07, which applied to all Embraer S.A. Model ERJ 170-100 LR, -100 STD, -
100 SE, and -100 SU airplanes; and Model ERJ 170-200 LR, -200 SU, -200
STD, and -200 LL airplanes. AD 2022-25-07 required revising the
existing maintenance or inspection program, as applicable, to
incorporate new or more restrictive airworthiness limitations. This AD
was prompted by a determination that new or more restrictive
airworthiness limitations are necessary. This AD continues to require
all actions in AD 2022-25-07 and requires revising the existing
maintenance or inspection program, as applicable, to incorporate new or
more restrictive airworthiness limitations, and certain structural
modifications, as specified in an Ag[ecirc]ncia Nacional de
Avia[ccedil][atilde]o Civil (ANAC) AD, which is incorporated by
reference. The FAA is issuing this AD to address the unsafe condition
on these products.
DATES: This AD is effective March 17, 2025.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of March 17,
2025.
The Director of the Federal Register approved the incorporation by
reference of a certain other publication listed in this AD as of
January 23, 2023 (87 FR 77493, December 19, 2022).
The Director of the Federal Register approved the incorporation by
reference of certain other publications listed in this AD as of
February 10, 2020 (85 FR 453, January 6, 2020).
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2024-1887; 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 mandatory continuing airworthiness
information (MCAI), any comments received, and other information. The
address for Docket Operations is U.S. Department of Transportation,
Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200
New Jersey Avenue SE, Washington, DC 20590.
Material Incorporated by Reference:
<bullet> For ANAC material identified in this AD, contact National
Civil Aviation Agency (ANAC), Aeronautical Products Certification
Branch (GGCP), Rua Dr. Orlando Feirabend Filho, 230--Centro Empresarial
Aquarius--Torre B--Andares 14 a 18, Parque Residencial Aquarius, CEP
12.246-190--S[atilde]o Jos[eacute] dos Campos--SP, Brazil; telephone 55
(12) 3203-6600; email <a href="/cdn-cgi/l/email-protection#7f0f1e1c3f431e5f170d1a1942" http: anac.gov">anac.gov</a>.br">pac@<a href="http://anac.gov">anac.gov</a>.br</a>; website <a href="http://anac.gov">anac.gov</a>.br/en/. You may
find this material on the ANAC website at <a href="http://sistemas.anac.gov">sistemas.anac.gov</a>.br/
certificacao/DA/DAE.asp.
<bullet> For Embraer material, 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
<a href="/cdn-cgi/l/email-protection#e5818c9691978c87a580888797848097cb868a88cb8797"><span class="__cf_email__" data-cfemail="b4d0ddc7c0c6ddd6f4d1d9d6c6d5d1c69ad7dbd99ad6c6">[email protected]</span></a>; internet <a href="http://flyembraer.com">flyembraer.com</a>.
<bullet> You may view this material at the FAA, Airworthiness
Products Section, Operational Safety Branch, 2200 South 216th St., Des
Moines, WA. For information on the availability of this material at the
FAA, call 206-231-3195. It is also available at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2024-1887.
FOR FURTHER INFORMATION CONTACT: Joshua Bragg, Aviation Safety
Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
telephone 817-222-5366; email <a href="/cdn-cgi/l/email-protection#cfa5a0bca7baaee1a4e1adbdaea8a88fa9aeaee1a8a0b9"><span class="__cf_email__" data-cfemail="214b4e524954400f4a0f4353404646614740400f464e57">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 to supersede AD 2022-25-07, Amendment 39-22263 (87 FR
77493, December 19, 2022) (AD 2022-25-07). AD 2022-25-07 applied to all
Embraer S.A. Model ERJ 170-100 LR, -100 STD, -100 SE, and -100 SU
airplanes; and Model ERJ 170-200 LR, -200 SU, -200 STD, and -200 LL
airplanes. AD 2022-25-07 required revising the existing maintenance or
inspection program, as applicable, to incorporate new or more
restrictive airworthiness limitations. The FAA issued AD 2022-25-07 to
address fatigue cracking of various principal structural elements
(PSEs); such cracking could result in reduced structural integrity of
the airplane. AD 2022-25-07 addressed 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.
Furthermore, AD 2022-25-07 addressed the potential 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.
[[Page 9198]]
The NPRM published in the Federal Register on July 18, 2024 (89 FR
58295). The NPRM was prompted by AD 2023-12-01, effective December 15,
2023, issued by ANAC, which is the aviation authority for Brazil (ANAC
AD 2023-12-01) (also referred to as the MCAI). The MCAI states that new
or more restrictive airworthiness limitations have been developed for
Part 1--Certification Maintenance Requirements, Part 2--Airworthiness
Limitation Inspections (ALI)--Structures, Part 3--Fuel System
Limitation Items, and Part 4--Life Limited Items of the EMBRAER 170/175
maintenance review board report (MRBR). The MCAI also stated that only
airplanes with certain serial numbers are affected.
In the NPRM, the FAA proposed to continue to require the
airworthiness limitations specified in paragraphs (g) and (i) of AD
2022-25-07 until incorporation of the new or more restrictive
airworthiness limitations and structural modifications, as specified in
ANAC AD 2023-12-01 and required by paragraph (l) of this AD. The FAA is
issuing this AD to address fatigue cracking of various principal
structural elements (PSEs); such cracking could result in reduced
structural integrity of the airplane. This AD also addresses 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.
Furthermore, this AD addresses potential 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.
You may examine the MCAI in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2024-1887.
Discussion of Final Airworthiness Directive
Comments
The FAA received a comment from the Air Line Pilots Association,
International (ALPA), who supported the NPRM without change.
The FAA received additional comments from Horizon Air. The
following presents the comments received on the NPRM and the FAA's
response to each comment.
Request To Update MRB Revision
Horizon Air requested that the FAA update the revision for Appendix
A--Airworthiness Limitations of EMBRAER 170/175 Maintenance Review
Board Report (MRBR), MRB-1621, Revision 14, dated September 27, 2018,
to Revision 19, dated July 14, 2023, referenced in paragraphs (p)(5)(i)
and (ii) of this AD. Horizon Air asserted that Revision 19 is required
to be incorporated by the MCAI referenced in paragraph (l) of this AD.
FAA does not agree with the request. Appendix A--Airworthiness
Limitations of EMBRAER 170/175 MRBR, MRB-1621, Revision 19, dated July
14, 2023, is not explicitly referenced in this AD, since this AD
directs operators to comply with the MCAI, which is incorporated by
reference in this AD. Therefore, Revision 19 of that MRB is not
incorporated by reference. The only MRBR document explicitly referenced
in the AD requirements is Revision 14, as specified in the retained
requirements in paragraph (g) of this AD. This AD has not been changed
regarding this request.
Request To Allow for Incorporation of Temporary Revisions (TRs)
Horizon stated that since the issuance of the MCAI, which requires
Appendix A--Airworthiness Limitations of EMBRAER 170/175 Maintenance
Review Board Report (MRBR), MRB-1621, Revision 19, dated July 14, 2023,
ANAC has issued two TRs, TR 19-1, dated October 31, 2023, and TR 19-2,
dated March 21, 2024. Horizon requested that the FAA clarify whether
paragraph (m)(2) of the proposed AD allows incorporating approved
temporary revisions (TRs) of MRB-1621 subsequent to Revision 19, dated
July 14, 2023. If TR 19-1 and 19-2 are not specifically allowed,
Horizon requested that the proposed AD be revised to allow use of TR
19-1 and 19-2 and further revisions allowed by ANAC.
Paragraph (m)(2) of this AD allows the use of alternative
inspections and intervals published in later ANAC-approved revisions.
The operators are allowed to incorporate Revision 19 of the MRB as
modified by TR 19-1 and TR 19-2. This AD has not been changed regarding
this request.
Request To Terminate Exceptions Related to Retained Actions
Horizon requested that the FAA terminate the exceptions paragraphs
related to retained actions. Horizon stated that the new actions in
paragraph (l) of the proposed AD terminate the retained actions in
paragraphs (g) and (i) of the AD. Those paragraphs had their own
exceptions paragraphs that also carried over from AD 2022-25-07. Those
exceptions paragraphs are no longer applicable.
The FAA agrees the retained restrictions and exceptions are no
longer applicable once the terminating action is accomplished. The FAA
does not agree with the need to terminate paragraphs (h), (j), and (k)
of the AD because those provisions no longer apply once the actions of
paragraph (l) of this AD are accomplished. This AD has not been changed
regarding this request.
Conclusion
This product has been approved by the aviation authority of another
country and is approved for operation in the United States. Pursuant to
the FAA's bilateral agreement with this State of Design Authority, it
has notified the FAA of the unsafe condition described in the MCAI
referenced above. The FAA reviewed the relevant data, considered the
comments received, and determined that air safety requires adopting
this AD as proposed. Accordingly, the FAA is issuing this AD to address
the unsafe condition on this product. Except for minor editorial
changes, this AD is adopted as proposed in the NPRM. None of the
changes will increase the economic burden on any operator.
Material Incorporated by Reference Under 1 CFR Part 51
ANAC AD 2023-12-01, effective December 15, 2023, specifies new or
more restrictive airworthiness limitations for certification
maintenance requirements, airplane structures, fuel systems, and safe
life limits.
This AD also requires ANAC AD 2022-02-01, effective February 9,
2022, which the Director of the Federal Register approved for
incorporation by reference as of January 23, 2023 (87 FR 77493,
December 19, 2022).
This AD also requires Appendix A--Airworthiness Limitations of
EMBRAER 170/175 Maintenance Review Board Report (MRBR), MRB-1621,
Revision 14, dated September 27, 2018; and Embraer Temporary Revision
(TR) 14-1, dated November 13, 2018, to Part 4--Life-Limited Items, of
Appendix A of EMBRAER 170/175 Maintenance Review Board Report (MRBR),
MRB-1621, Revision 14, dated September 27, 2018; which the Director of
the Federal Register approved for incorporation by reference as of
February 10, 2020 (85 FR 453, January 6, 2020).
This material is reasonably available because the interested
parties have
[[Page 9199]]
access to it through their normal course of business or by the means
identified in the ADDRESSES section.
Costs of Compliance
The FAA estimates that this AD affects 662 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
The FAA estimates the following costs to comply with the retained
actions from AD 2022-25-07:
Estimated Costs for Required Actions *
----------------------------------------------------------------------------------------------------------------
Cost per
Action Labor cost Parts cost product Cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
Retained structural modifications 196 work-hours x $98,860 $115,520 Up to $76,474,240.
$85 per hour =
$16,660.
----------------------------------------------------------------------------------------------------------------
* Table does not include estimated costs for revising the existing maintenance or inspection program.
The FAA estimates the total cost per operator for the retained
revision of the existing maintenance or inspection program from AD
2022-25-07 to be $7,650 (90 work-hours x $85 per work-hour).
The FAA has determined that revising the existing maintenance or
inspection program takes an average of 90 work-hours per operator,
although the agency recognizes that this number may vary from operator
to operator. Since operators incorporate maintenance or inspection
program changes for their affected fleet(s), the FAA has determined
that a per-operator estimate is more accurate than a per-airplane
estimate.
The FAA estimates the total cost per operator for the new actions
to be $7,650 (90 work-hours x $85 per work-hour).
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.
The FAA is 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) Will not affect intrastate aviation in Alaska, and
(3) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
The 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 Directive (AD) 2022-25-07, Amendment 39-22263
(87 FR 77493, December 19, 2022); and
0
b. Adding the following new AD:
2025-01-05 Embraer S.A. (Type Certificate Previously Held by
Yabor[atilde] Ind[uacute]stria Aeron[aacute]utica S.A.; Embraer
S.A.): Amendment 39-22929; Docket No. FAA-2024-1887; Project
Identifier MCAI-2023-01237-T.
(a) Effective Date
This airworthiness directive (AD) is effective March 17, 2025.
(b) Affected ADs
This AD replaces AD 2022-25-07, Amendment 39-22263 (87 FR 77493,
December 19, 2022) (AD 2022-25-07).
(c) Applicability
This AD applies to Embraer S.A. Model ERJ 170-100 LR, -100 SE, -
100 STD, and -100 SU airplanes; and Model ERJ 170-200 LR, -200 STD,
-200 SU, and -200 LL airplanes; certificated in any category, with
manufacturer serial numbers 17000002, 17000004 through 17000013
inclusive, and 17000015 through 17000948 inclusive.
(d) Subject
Air Transport Association (ATA) of America Code 05, Time Limits/
Maintenance Checks.
(e) Unsafe Condition
This AD was prompted by a determination that new or more
restrictive airworthiness limitations are necessary. The FAA is
issuing this AD to address fatigue cracking of various principal
structural elements (PSEs); such cracking could result in reduced
structural integrity of the airplane. The FAA is also issuing this
AD to address 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. Furthermore, the FAA is issuing this AD
to address potential 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 Revision of the Existing Maintenance or Inspection Program
From AD 2019-25-16, Amendment 39-21015 (85 FR 453, January 6, 2020) (AD
2019-25-16), With No Changes
This paragraph restates the requirements of paragraph (g) of AD
2022-25-07, with no changes. For Model ERJ 170-100 LR, -100 STD, -
100 SE, and -100 SU airplanes; and Model ERJ 170-200 LR, -200 SU, -
200 STD, and -200LL airplanes; manufacturer serial numbers 17000002,
17000004 through 17000013 inclusive, and 17000015 through 17000761
inclusive: Within 90 days after February 10, 2020 (the effective
date of AD 2019-25-16), revise the existing maintenance or
inspection program, as applicable, to
[[Page 9200]]
incorporate the information specified in Part 1--Certification
Maintenance Requirements, Part 2--Airworthiness Limitation
Inspections (ALI) Structures, Part 3--Fuel System Limitation Items,
and Part 4--Life Limited Items; and EMBRAER Temporary Revision (TR)
14-1, dated November 13, 2018, to Part 4--Life Limited Items; of
Appendix A of the EMBRAER 170/175 MRBR, MRB-1621, Revision 14, dated
September 27, 2018 (EMBRAER 170/175 MRB-1621, Revision 14). The
initial compliance time for doing the tasks is at the later of the
times specified in paragraphs (g)(1) and (2) of this AD.
(1) Within the applicable times specified in EMBRAER 170/175
MRB-1621, Revision 14. For the purposes of this AD, the initial
compliance times (identified as ``Threshold'' or ``T'' in EMBRAER
170/175 MRB-1621, Revision 14) are expressed in ``total flight
cycles'' or ``total flight hours,'' as applicable.
(2) Within 90 days or 600 flight cycles after February 10, 2020
(the effective date of AD 2019-25-16), whichever occurs later.
(h) Retained Restrictions on Alternative Actions, Intervals, and
CDCCLs, With No Changes
This paragraph restates the requirements of paragraph (h) of AD
2022-25-07, with no changes. Except as required by paragraphs (i)
and (l) of this AD: After the existing maintenance or inspection
program has been revised as required by paragraph (g) 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 (n)(1)
of this AD.
(i) Retained Revision of the Existing Maintenance or Inspection
Program, With No Changes
This paragraph restates the requirements of paragraph (i) of AD
2022-25-07, with no changes. For Embraer S.A. Model ERJ 170-100 LR,
-100 STD, -100 SE, and -100 SU airplanes; and Model ERJ 170-200 LR,
-200 SU, -200 STD, and -200 LL airplanes: Except as specified in
paragraph (j) of this AD, comply with all required actions and
compliance times specified in, and in accordance with, ANAC AD 2022-
02-01, dated February 9, 2022 (ANAC AD 2022-02-01). Accomplishing
the revision of the existing maintenance or inspection program
required by this paragraph terminates the requirements for Part 2--
Airworthiness Limitation Inspections (ALI) Structures specified in
paragraph (g) of this AD only. Accomplishing the revision of the
existing maintenance or inspection program required by paragraph (l)
of this AD terminates the requirements of this paragraph.
(j) Retained Exceptions to ANAC AD 2022-02-01
(1) Where ANAC AD 2022-02-01 refers to its effective date, this
AD requires using January 23, 2023 (the effective date of AD 2022-
25-07).
(2) The ``Alternative method of compliance (AMOC)'' section of
ANAC AD 2022-02-01 does not apply to this AD.
(3) Where paragraph (b)(1) of ANAC AD 2022-02-01 specifies
incorporating all airworthiness limitations in Part 2 of the
material specified in paragraph (b)(1) of ANAC AD 2022-02-01, for
this AD, do not incorporate the threshold and interval for
maintenance review board report (MRBR) task number 57-30-002-0002,
``Enhanced Wingtip to Wing Spar Attachments--Internal.''
Note 1 to paragraph (j)(3): AD 2022-11-51, Amendment 39-22074
(87 FR 33623, June 3, 2022) (AD 2022-11-51), requires, among other
actions, incorporating alternate thresholds and intervals for MRBR
task number 57-30-002-0002. The airplanes affected by MRBR task
number 57-30-002-0002 are identified in paragraph (c) of AD 2022-11-
51.
(k) Retained Provisions for Alternative Actions and Intervals, With a
New Exception
This paragraph restates the requirements of paragraph (k) of AD
2022-25-07, with no changes. Except as required by paragraph (l) of
this AD: After the existing maintenance or inspection program has
been revised as required by paragraph (i) of this AD, no alternative
actions (e.g., inspections), intervals, or CDCCLs are allowed unless
they are approved as specified in paragraph (f) of ANAC AD 2022-02-
01.
(l) New Revision of the Existing Maintenance or Inspection Program
Except as specified in paragraph (m) of this AD: Comply with all
required actions and compliance times specified in, and in
accordance with, Ag[ecirc]ncia Nacional de Avia[ccedil][atilde]o
Civil (ANAC) AD 2023-12-01, effective December 15, 2023 (ANAC AD
2023-12-01). Accomplishing the revision of the existing maintenance
or inspection program required by this paragraph terminates the
requirements in paragraphs (g) and (i) of this AD.
(m) Exceptions to ANAC AD 2023-12-01
(1) Where ANAC AD 2023-12-01 refers to its effective date, this
AD requires using the effective date of this AD.
(2) Where paragraph (c) of ANAC AD 2023-12-01 refers to ``no
alternative inspections or inspection intervals may be used unless
the alternative inspection or interval is published in revisions
approved by ANAC of the MRB-1621 which are subsequent to Revision
19, dated July 14th, 2023, or approved as an alternative method of
compliance (AMOC) in accordance with the procedures specified in
paragraph (d) of this AD,'' for this AD, replace that text with ``no
alternative actions (e.g., inspections), intervals, and CDCCLs may
be used unless the alternative action (e.g., inspection), interval,
or CDCCL is published in revisions approved by ANAC of the MRB-1621
which are subsequent to Revision 19, dated July 14th, 2023.''
(3) This AD does not adopt paragraph (d) of ANAC AD 2023-12-01.
(4) Where paragraph (b)(1) of ANAC AD 2023-12-01 specifies
incorporating all airworthiness limitations in Part 2 of the service
information specified in paragraph (b)(1) of ANAC AD 2023-12-01, for
this AD, do not incorporate the threshold and interval for MRBR task
number 57-30-002-0002, ``Enhanced Wingtip to Wing Spar Attachments--
Internal.''
Note 2 to paragraph (m)(4): AD 2022-11-51, requires, among other
actions, incorporating alternate thresholds and intervals for MRBR
task number 57-30-002-0002. The airplanes affected by MRBR task
number 57-30-002-0002 are identified in paragraph (c) of AD 2022-11-
51.
(n) Additional AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
International Validation 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 responsible Flight Standards Office, as
appropriate. If sending information directly to the manager of the
International Validation Branch, mail it to the address identified
in paragraph (o) of this AD. Information may be emailed to:
<a href="/cdn-cgi/l/email-protection#85c4c8cac6c5e3e4e4abe2eaf3"><span class="__cf_email__" data-cfemail="dc9d91939f9cbabdbdf2bbb3aa">[email protected]</span></a>.
(2) Contacting the Manufacturer: For any requirement in this AD
to obtain instructions from a manufacturer, the instructions must be
accomplished using a method approved by the Manager, International
Validation Branch, FAA; or ANAC; or ANAC's authorized Designee. If
approved by the ANAC Designee, the approval must include the
Designee's authorized signature.
(o) Additional Information
For more information about this AD, contact Joshua Bragg,
Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 817-222-5366; email
<a href="/cdn-cgi/l/email-protection#cea4a1bda6bbafe0a5e0acbcafa9a98ea8afafe0a9a1b8"><span class="__cf_email__" data-cfemail="b0dadfc3d8c5d19edb9ed2c2d1d7d7f0d6d1d19ed7dfc6">[email protected]</span></a>.
(p) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the material listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this material as applicable to do the actions
required by this AD, unless this AD specifies otherwise.
(3) The following material was approved for IBR on March 17,
2025.
(i) Ag[ecirc]ncia Nacional de Avia[ccedil][atilde]o Civil (ANAC)
AD 2023-12-01, effective December 15, 2023.
(ii) [Reserved]
(4) The following material was approved for IBR on January 23,
2023 (87 FR 77493, December 19, 2022).
(i) ANAC AD 2022-02-01, effective February 9, 2022.
(ii) [Reserved]
(5) The following material was approved for IBR on February 10,
2020 (85 FR 453, January 6, 2020).
(i) Appendix A--Airworthiness Limitations of EMBRAER 170/175
Maintenance Review Board Report (MRBR), MRB-1621, Revision 14, dated
September 27, 2018.
(ii) Embraer Temporary Revision (TR) 14-1, dated November 13,
2018, to Part 4--Life-Limited Items, of Appendix A of EMBRAER 170/
175 Maintenance Review Board Report (MRBR), MRB-1621, Revision 14,
dated September 27, 2018.
[[Page 9201]]
(6) For ANAC ADs, contact ANAC, Aeronautical Products
Certification Branch (GGCP), Rua Dr. Orlando Feirabend Filho, 230--
Centro Empresarial Aquarius--Torre B--Andares 14 a 18, Parque
Residencial Aquarius, CEP 12.246-190--S[atilde]o Jos[eacute] dos
Campos--SP, Brazil; telephone 55 (12) 3203-6600; email
<a href="/cdn-cgi/l/email-protection#65150406255904450d17000358" http: anac.gov">anac.gov</a>.br">pac@<a href="http://anac.gov">anac.gov</a>.br</a>; website <a href="http://anac.gov">anac.gov</a>.br/en/. You may find this ANAC AD
on the ANAC website at <a href="http://sistemas.anac.gov">sistemas.anac.gov</a>.br/certificacao/DA/DAE.asp.
(7) For Embraer material, contact Embraer S.A., 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
<a href="/cdn-cgi/l/email-protection#9df9f4eee9eff4ffddf8f0ffeffcf8efb3fef2f0b3ffef"><span class="__cf_email__" data-cfemail="f7939e8483859e95b7929a9585969285d994989ad99585">[email protected]</span></a>; internet <a href="http://flyembraer.com">flyembraer.com</a>.
(8) You may view this material at the FAA, Airworthiness
Products Section, Operational Safety Branch, 2200 South 216th St.,
Des Moines, WA. For information on the availability of this material
at the FAA, call 206-231-3195.
(9) You may view this material at the National Archives and
Records Administration (NARA). For information on the availability
of this material at NARA, visit <a href="http://www.archives.gov/federal-register/cfr/ibr-locations">www.archives.gov/federal-register/cfr/ibr-locations</a>, or email <a href="/cdn-cgi/l/email-protection#5e382c7037302d2e3b3d2a3731301e303f2c3f70393128"><span class="__cf_email__" data-cfemail="462034682f2835362325322f2928062827342768212930">[email protected]</span></a>.
Issued on January 6, 2025.
Victor Wicklund,
Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2025-02381 Filed 2-7-25; 8:45 am]
BILLING CODE 4910-13-P
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</html>Indexed from Federal Register on February 10, 2025.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.