Document ID: FAA-2022-0979-0001
Agency: faa
Document Type: Proposed Rule
Title: Airworthiness Directives: Embraer S.A. (Type Certificate Previously Held by Yabora Industria Aeronautica S.A.; Embraer S.A.) Airplanes
Posted Date: 2022-07-28T04:00Z

[Federal Register Volume 87, Number 144 (Thursday, July 28, 2022)]
[Proposed Rules]
[Pages 45284-45288]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-16098]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2022-0979; Project Identifier MCAI-2022-00171-T]
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: Notice of proposed rulemaking (NPRM).

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SUMMARY: The FAA proposes to supersede Airworthiness Directive (AD) 
2019-25-16, which applies to certain 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 -200LL airplanes. AD 2019-25-16 requires revising 
the existing maintenance or inspection program, as applicable, to 
incorporate new or more restrictive airworthiness limitations. Since 
the FAA issued AD 2019-25-16, the FAA has determined that new or more 
restrictive airworthiness limitations are necessary. This proposed AD 
would continue to require the actions in AD 2019-25-16 and require 
revising the existing maintenance or inspection program, as applicable, 
to incorporate additional new or more restrictive airworthiness 
limitations and incorporate certain structural modifications, as 
specified in an Ag[ecirc]ncia Nacional de Avia[ccedil][atilde]o Civil 
(ANAC) AD, which is proposed for incorporation by reference. The FAA is 
proposing this AD to address the unsafe condition on these products.

DATES: The FAA must receive comments on this proposed AD by September 
12, 2022.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to www.regulations.gov. 
Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE, Washington, DC 20590.
     Hand Delivery: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE, Washington, DC 20590, between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays.
    For ANAC material that will be incorporated by reference (IBR) 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 [email protected]; 
internet www.anac.gov.br/en/. You may find this material on the ANAC 
website at https://sistemas.anac.gov.br/certificacao/DA/DAE.asp. For 
Embraer service information identified in this proposed 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 [email protected]; internet www.flyembraer.com. 
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. The ANAC AD is also available in the AD docket at 
www.regulations.gov by searching for and locating Docket No. FAA-2022-
0979.

Examining the AD Docket

    You may examine the AD docket at www.regulations.gov by searching 
for and locating Docket No. FAA-2022-0979; 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 NPRM, the mandatory 
continuing airworthiness information (MCAI), any comments received, and 
other information. The street address for Docket Operations is listed 
above.

FOR FURTHER INFORMATION CONTACT: Krista Greer, Aerospace Engineer, 
Large Aircraft Section, FAA, International Validation Branch, 2200 
South 216th St., Des Moines, WA 98198; telephone 206-231-3221; email 
[email protected].

SUPPLEMENTARY INFORMATION:

Comments Invited

    The FAA invites you to send any written relevant data, views, or 
arguments about this proposal. Send your comments to an address listed 
under ADDRESSES. Include ``Docket No. FAA-2022-0979; Project Identifier 
MCAI-2022-00171-T'' at the beginning of your comments. The most helpful 
comments reference a specific portion of the proposal, explain the 
reason for any recommended change, and include supporting data. The FAA 
will consider all comments received by the closing date and may amend 
this proposal because of those comments.
    Except for Confidential Business Information (CBI) as described in 
the following paragraph, and other information as described in 14 CFR 
11.35, the FAA will post all comments received, without change, to 
www.regulations.gov, including any personal information you provide. 
The agency will also post a report summarizing each substantive verbal 
contact received about this NPRM.

Confidential Business Information

    CBI is commercial or financial information that is both customarily 
and actually treated as private by its owner. Under the Freedom of 
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public 
disclosure. If your comments responsive to this NPRM contain commercial 
or financial information that is customarily treated as private, that 
you actually treat as private, and that is relevant or responsive to 
this NPRM, it is important that you clearly designate the submitted 
comments as CBI. Please mark each page of your submission containing 
CBI as ``PROPIN.'' The FAA will treat such marked submissions as 
confidential under the FOIA, and they will not be placed in the public 
docket of this NPRM. Submissions containing CBI should be sent to 
Krista Greer, Aerospace Engineer, Large Aircraft Section, FAA, 
International Validation Branch, 2200 South 216th St., Des Moines, WA 
98198; telephone 206-231-3221; email [email protected]. Any 
commentary that the FAA receives which is not specifically designated 
as CBI will be placed in the public docket for this rulemaking.

[[Page 45285]]

Background

    The FAA issued AD 2019-25-16, Amendment 39-21015 (85 FR 453, 
January 6, 2020) (AD 2019-25-16), which applies to certain 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 2019-
25-16 requires revising the existing maintenance or inspection program, 
as applicable, to incorporate new or more restrictive airworthiness 
limitations; and adds airplanes to the applicability. The FAA issued AD 
2019-25-16 to address fatigue cracking of various principal structural 
elements (PSEs); such cracking could result in reduced structural 
integrity of the airplane and 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. 
Furthermore, the FAA issued AD 2019-25-16 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.

Actions Since AD 2019-25-16 Was Issued

    Since the FAA issued AD 2019-25-16, the FAA has determined that new 
or more restrictive airworthiness limitations are necessary.
    ANAC, which is the aviation authority for Brazil, has issued ANAC 
AD 2022-02-01, effective February 9, 2022 (ANAC AD 2022-02-01) (also 
referred to as the MCAI), to correct an unsafe condition for all 
Embraer S.A. Model ERJ 170-100 STD, ERJ 170-100 LR, ERJ 170-100 SU, ERJ 
170-100 SE, ERJ 170-200 STD, ERJ 170-200 LR, ERJ 170-200 SU, and ERJ 
170-200 LL airplanes. ANAC AD 2022-02-01 supersedes ANAC AD 2019-05-1, 
effective May 2, 2019; corrected July 1, 2019 (ANAC AD 2019-05-01), 
which corresponds to FAA AD 2019-25-16.
    This proposed AD was prompted by a determination that new or more 
restrictive airworthiness limitations are necessary. The FAA is 
proposing this AD to address fatigue cracking of various PSEs; such 
cracking could result in reduced structural integrity of the airplane 
and 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 also proposing 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. See the MCAI for 
additional background information.

Other Relevant Rulemaking

    ANAC has also issued ANAC AD 2022-05-02, effective May 13, 2022 
(ANAC AD 2022-05-02), which corresponds to FAA AD 2022-11-51, Amendment 
39-22074 (87 FR 33623, June 3, 2022) (AD 2022-11-51). AD 2022-11-51 
applies to certain Embraer S.A. Model ERJ 170-200 STD, ERJ 170-200 LR, 
ERJ 170-200 SU, and ERJ 170-200 LL airplanes. AD 2022-11-51 requires a 
detailed inspection for cracks of affected wing tip connections, 
corrective actions if necessary, and revision of the existing 
maintenance or inspection program. Incorporating maintenance review 
board report (MRBR) task number 57-30-002-0002, ``Enhanced Wingtip to 
Wing Spar Attachments--Internal'' is part of the requirements of 
paragraph (g) of AD 2022-11-51 and paragraph (h)(6) of AD 2022-11-51 
includes exceptions for that task. The FAA issued AD 2022-11-51 to 
address cracks that could develop on the wing tip connection area that 
can affect its structural integrity to the point of an in-flight 
detachment, which, even if sufficient controllability of the airplane 
is maintained for the safe continuation of the flight, could result in 
the detached part damaging other airplane parts and affecting 
controllability, as well as damaging property and injuring persons on 
the ground.
    Since all airplanes affected by AD 2022-11-51 already incorporated 
MRBR task number 57-30-002-0002, this proposed AD does not require 
incorporating MRBR task number 57-30-002-0002 as part of the revision 
of the existing maintenance or inspection program required by paragraph 
(i) of this proposed AD.

Related Service Information Under 1 CFR Part 51

    ANAC AD 2022-02-01 describes new or more restrictive airworthiness 
limitations for airplane structures and the incorporation of certain 
structural modifications (i.e., reinforcement of left-hand (LH) and 
right-hand (LH) wing spar II lower; and reinforcement of the wing lower 
skin chordwise splices of LH and RH wing) before the defined structural 
modifications points (SMP).
    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).
    This material 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.

Differences Between This Proposed AD and the MCAI

    ANAC AD 2022-02-01 supersedes ANAC AD 2019-05-01; however ANAC AD 
2022-02-01 does not retain any requirements from ANAC AD 2019-05-01. 
ANAC AD 2022-02-01 only requires airworthiness limitations that are in 
Part 2 of the referenced MRBR. This proposed AD would retain the 
airworthiness limitations for Parts 1, 3, and 4 of the MRBR.

FAA's Determination

    These products have been approved by the aviation authority of 
another country and are approved for operation in the United States. 
Pursuant to the FAA's bilateral agreement with the State of Design 
Authority, it has notified the FAA of the unsafe condition described in 
the MCAI referenced above. The FAA is issuing this NPRM after 
determining that the unsafe condition described previously is likely to 
exist or develop in other products of these same type designs.

Proposed AD Requirements in This NPRM

    This proposed AD would retain the requirements of AD 2019-25-16. 
This proposed AD would also require revising the existing maintenance 
or inspection program, as applicable, to incorporate new or more 
restrictive airworthiness limitations, which are specified in ANAC AD 
2022-02-01 described previously, as proposed for incorporation by 
reference. Any differences with ANAC AD 2022-02-01 are identified as 
exceptions in the regulatory text of this AD except as

[[Page 45286]]

discussed under ``Differences Between this Proposed AD and the MCAI.''
    This proposed AD would require revisions to certain operator 
maintenance documents to include new actions (e.g., inspections). 
Compliance with these actions is required by 14 CFR 91.403(c). For 
airplanes that have been previously modified, altered, or repaired in 
the areas addressed by this proposed AD, the operator may not be able 
to accomplish the actions described in the revisions. In this 
situation, to comply with 14 CFR 91.403(c), the operator must request 
approval for an alternative method of compliance (AMOC) according to 
paragraph (l)(1) of this proposed AD.

Explanation of Required Compliance Information

    In the FAA's ongoing efforts to improve the efficiency of the AD 
process, the FAA developed a process to use some civil aviation 
authority (CAA) ADs as the primary source of information for compliance 
with requirements for corresponding FAA ADs. The FAA has been 
coordinating this process with manufacturers and CAAs. As a result, the 
FAA proposes to incorporate ANAC AD 2022-02-01 by reference in the FAA 
final rule. This proposed AD would, therefore, require compliance with 
ANAC AD 2022-02-01 in its entirety through that incorporation, except 
for any differences identified as exceptions in the regulatory text of 
this proposed AD. Service information required by ANAC AD 2022-02-01 
for compliance will be available at www.regulations.gov by searching 
for and locating Docket No. FAA-2022-0979 after the FAA final rule is 
published.

Airworthiness Limitation ADs Using the New Process

    The FAA's process of incorporating by reference MCAI ADs as the 
primary source of information for compliance with corresponding FAA ADs 
has been limited to certain MCAI ADs (primarily those with service 
bulletins as the primary source of information for accomplishing the 
actions required by the FAA AD). However, the FAA is now expanding the 
process to include MCAI ADs that require a change to airworthiness 
limitation documents, such as airworthiness limitation sections.
    For these ADs that incorporate by reference an MCAI AD that changes 
airworthiness limitations, the FAA requirements are unchanged. 
Operators must revise the existing maintenance or inspection program, 
as applicable, to incorporate the information specified in the new 
airworthiness limitation document. The airworthiness limitations must 
be followed according to 14 CFR 91.403(c) and 91.409(e).
    The previous format of the airworthiness limitation ADs included a 
paragraph that specified that no alternative actions (e.g., 
inspections), or intervals may be used unless the actions and intervals 
are approved as an AMOC in accordance with the procedures specified in 
the AMOCs paragraph under ``Additional FAA Provisions.'' This new 
format includes a ``New Provisions for Alternative Actions and 
Intervals'' paragraph that does not specifically refer to AMOCs, but 
operators may still request an AMOC to use an alternative action or 
interval.

Costs of Compliance

    The FAA estimates that this proposed AD affects 662 airplanes of 
U.S. registry. The FAA estimates the following costs to comply with 
this proposed AD:
    The FAA estimates the total cost per operator for the retained 
actions from AD 2019-25-16 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 proposed 
revision to the existing maintenance or inspection program to be $7,650 
(90 work-hours x $85 per work-hour).

                                     Estimated Costs for Required Actions *
----------------------------------------------------------------------------------------------------------------
                                                                                    Cost per       Cost on U.S.
              Action                        Labor cost            Parts cost        product         operators
----------------------------------------------------------------------------------------------------------------
New proposed actions..............  196 work-hours x $85 per          $98,860         $115,520      $76,474,240
                                     hour = $16,660.
----------------------------------------------------------------------------------------------------------------
* Table does not include estimated costs for revising the existing maintenance or inspection program.

    According to the manufacturer, some or all of the costs of this 
proposed AD may be covered under warranty, thereby reducing the cost 
impact on affected individuals. The FAA does not control warranty 
coverage for affected individuals. As a result, the FAA has included 
all known costs in the cost estimate.

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

    The FAA determined that this proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would not 
have a substantial direct effect on the States, on the relationship 
between the national Government and the States, or on the distribution 
of power and responsibilities among the various levels of government.
    For the reasons discussed above, I certify this proposed 
regulation:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Would not affect intrastate aviation in Alaska, and
    (3) Would not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.

[[Page 45287]]

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 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) 2019-25-16, Amendment 39-21015 
(85 FR 453, January 6, 2020); and
0
b. Adding the following new AD:

Embraer S.A. (Type Certificate Previously Held by Yabor[atilde] 
Ind[uacute]stria Aeron[aacute]utica S.A.; Embraer S.A.): Docket No. 
FAA-2022-0979; Project Identifier MCAI-2022-00171-T.

(a) Comments Due Date

    The FAA must receive comments on this airworthiness directive 
(AD) by September 12, 2022.

(b) Affected ADs

    This AD replaces AD 2019-25-16, Amendment 39-21015 (85 FR 453, 
January 6, 2020) (AD 2019-25-16).

(c) Applicability

    This AD applies 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, certificated in any category.

(d) Subject

    Air Transport Association (ATA) of America Code 05, Time Limits/
Maintenance Checks; 27, Flight controls; 28, Fuel; 52, Doors; 53, 
Fuselage; 54, Nacelles/pylons; 55, Stabilizers; 57, Wings; 71, 
Powerplant; and 78, Exhaust.

(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, With No Changes

    This paragraph restates the requirements of paragraph (i) of AD 
2019-25-16, 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, 2022 (the effective 
date of AD 2019-25-16), revise the existing maintenance or 
inspection program, as applicable, to 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, 2022 
(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 (j) of AD 
2019-25-16, with no changes. Except as required by paragraph (i) 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 (l)(1) of this 
AD.

(i) New Revision of the Existing Maintenance or Inspection Program

    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, effective 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.

(j) Exceptions to ANAC AD 2022-02-01

    (1) Where ANAC AD 2022-02-01 refers to its effective date, this 
AD requires using the effective date of this AD.
    (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 service 
information 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 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) New Provisions for Alternative Actions and Intervals

    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, and CDCCLs are allowed 
unless they are approved as specified in paragraph (f) of ANAC AD 
2022-02-01.

(l) Additional FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
Large Aircraft Section, 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 Large Aircraft Section, International Validation Branch, send it 
to the attention of the person identified in paragraph (m)(2) of 
this AD. Information may be emailed to: [email protected].
    (i) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the responsible Flight Standards Office.
    (ii) AMOCs approved previously for AD 2019-25-16 are approved as 
AMOCs for the corresponding provisions of paragraph (g) of this AD.
    (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, Large Aircraft 
Section, 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.
    (3) Required for Compliance (RC): Except as required by 
paragraph (l)(2) of this AD, if any service information referenced 
in AD

[[Page 45288]]

2022-02-01 contains steps in the Accomplishment Instructions or 
figures that are labeled as RC, the instructions in RC steps, 
including subparagraphs under an RC step and any figures identified 
in an RC step, must be done to comply with this AD; any steps 
including substeps under those steps, that are not identified as RC 
are recommended. The instructions in steps, including substeps under 
those steps, not identified as RC may be deviated from using 
accepted methods in accordance with the operator's maintenance or 
inspection program without obtaining approval of an AMOC, provided 
the instructions identified as RC can be done and the airplane can 
be put back in an airworthy condition. Any substitutions or changes 
to instructions identified as RC require approval of an AMOC. If a 
step or substep is labeled ``RC Exempt,'' then the RC requirement is 
removed from that step or substep.

(m) Related Information

    (1) For ANAC AD 2022-02-01, 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 [email protected]; internet www.anac.gov.br/en/. 
You may find this ANAC AD on the ANAC website at https://sistemas.anac.gov.br/certificacao/DA/DAE.asp. 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. 
This material may be found in the AD docket at www.regulations.gov 
by searching for and locating Docket No. FAA-2022-0979.
    (2) For more information about this AD, contact Krista Greer, 
Aerospace Engineer, Large Aircraft Section, FAA, International 
Validation Branch, 2200 South 216th St., Des Moines, WA 98198; 
telephone 206-231-3221; email [email protected].
    (3) For Embraer 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 [email protected]; internet 
www.flyembraer.com. You may view this service information 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.

    Issued on July 21, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft 
Certification Service.
[FR Doc. 2022-16098 Filed 7-27-22; 8:45 am]
BILLING CODE 4910-13-P