89286 Federal Register / Vol. 88, No. 247 / Wednesday, December 27, 2023 / Rules and Regulations 

(iii) Marketing, outreach, and 

education. Implementation of effective 

outreach programs to attract and retain 

YBS farmers and ranchers, which may 

include the use of advertising 

campaigns, educational programs, and 

advisory committees comprised of YBS 

farmers and ranchers and/or a YBS 

mentoring program to better serve and 

understand the needs of this lending 

segment. 

(2) Quantitative goals— 

(i) Annual quantitative goals. Annual 

quantitative goals for credit to YBS 

farmers and ranchers based on an 

understanding of reliable demographic 

data for the lending territory. Direct 

lender associations must identify the 

sources of data used to establish the 

goals. Such goals must include at least 

one of the following: 

(A) Loan volume and loan number 

goals for YBS farmers and ranchers in 

the territory; 

(B) Percentage goals representative of 

the demographics for YBS farmers and 

ranchers in the territory; 

(C) Percentage goals for loans made to 

new borrowers qualifying as YBS 

farmers and ranchers in the territory; or 

(D) Goals for capital committed to 

loans made YBS farmers and ranchers in 

the territory. 

(ii) Board of directors approval and 

review. Goals must be approved by the 

direct lender association’s board of 

directors and reviewed quarterly with 

adjustments made as needed. 

PART 620—DISCLOSURE TO 

SHAREHOLDERS 

■ 3. The authority citation for part 620 

continues to read as follows: 

Authority: Secs. 4.3, 4.3A, 4.19, 5.9, 5.17, 

5.19 of the Farm Credit Act (12 U.S.C. 2154, 

2154a, 2207, 2243, 2252, 2254); sec. 424, Pub. 

L. 100–233, 101 Stat. 1568, 1656 (12 U.S.C. 

2252 note); sec. 514, Pub. L. 102–552, 106 

Stat. 4102, 4134. 

■ 4. Revise § 620.5 (k)(2) to read as 

follows: 

§ 620.5 Contents of the annual report to 

shareholders. 

* * * * * 

(k) * * * 

(2) Each direct lender association 

must provide a description of its YBS 

program, including a status report on 

each program component as set forth in 

§ 614.4165 (d) of this chapter and the 

definitions of ‘‘young,’’ ‘‘beginning,’’ 

and ‘‘small’’ farmers and ranchers. The 

discussion must provide such other 

information necessary for a 

comprehensive understanding of the 

direct lender association’s YBS program 

and its results. 

* * * * * 

Dated: December 14, 2023. 

Ashley Waldron, 

Secretary, Farm Credit Administration. 

[FR Doc. 2023–27929 Filed 12–26–23; 8:45 am] 

BILLING CODE 6705–01–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2023–2153; Project 

Identifier MCAI–2023–00688–T; Amendment 

39–22611; AD 2023–23–09] 

RIN 2120–AA64 

Airworthiness Directives; Embraer S.A. 

(Type Certificate Previously Held by 

Yabora ̃ Indu ́ stria Aerona ́utica S.A.; 

Embraer S.A.) Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

Embraer S.A. Model ERJ 190–400 

airplanes. This AD was prompted by a 

report of unexpected wear on the wing 

hinge bearing assembly of the aileron 

surfaces found during the functional test 

of the aileron control system backlash. 

This AD requires repetitive inspections 

of the press-fitted bushings of the wing 

ailerons for migration and broken 

sealant, measurements of the distance 

between the aileron surfaces and hinge 

fittings, functional checks of the 

backlash of the wing aileron control 

system, and all applicable related 

investigative and corrective actions, as 

specified in an Ageˆncia Nacional de 

Aviac ̧a ̃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 January 11, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of January 11, 2024. 

The FAA must receive comments on 

this AD by February 12, 2024. 

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 

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: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2023–2153; 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 street address for 

Docket Operations is listed above. 

Material Incorporated by Reference: 

• For material incorporated by 

reference 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—Sa ̃o Jose ́

dos Campos—SP, Brazil; phone 55 (12) 

3203–6600; email pac@anac.gov.br; 

website anac.gov.br/en/. You may find 

this material on the ANAC website at 

sistemas.anac.gov.br/certificacao/DA/ 

DAE.asp. 

• 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. It is also available at 

regulations.gov under Docket No. FAA– 

2023–2153. 

FOR FURTHER INFORMATION CONTACT: 

Joshua Bragg, Aviation Safety Engineer, 

FAA, 1600 Stewart Avenue, Suite 410, 

Westbury, NY 11590; phone: 817–222– 

5366; email joshua.k.bragg@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

The FAA invites you to send any 

written data, views, or arguments about 

this final rule. Send your comments to 

an address listed under ADDRESSES. 

Include ‘‘Docket No. FAA–2023–2153; 

Project Identifier MCAI–2023–00688–T’’ 

at the beginning of your comments. The 

most helpful comments reference a 

specific portion of the final rule, 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 final rule because of those 

comments. 

Except for Confidential Business 

Information (CBI) as described in the 

following paragraph, and other 


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information as described in 14 CFR 

11.35, the FAA will post all comments 

received, without change, to 

regulations.gov, including any personal 

information you provide. The agency 

will also post a report summarizing each 

substantive verbal contact received 

about this final rule. 

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 AD 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 AD, 

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 AD. Submissions containing CBI 

should be sent to Joshua Bragg, Aviation 

Safety Engineer, FAA, 1600 Stewart 

Avenue, Suite 410, Westbury, NY 

11590; phone: 817–222–5366; email 

joshua.k.bragg@faa.gov. Any 

commentary that the FAA receives 

which is not specifically designated as 

CBI will be placed in the public docket 

for this rulemaking. 

Background 

ANAC, which is the aviation 

authority for Brazil, has issued ANAC 

AD 2023–05–02, effective May 18, 2023 

(ANAC AD 2023–05–02) (also referred 

to as the MCAI), to correct an unsafe 

condition for all Embraer S.A. Model 

ERJ 190–400 airplanes. The MCAI states 

unexpected wear, which was beyond 

the certification limits of the airplane, 

was found on the wing hinge bearing 

assembly of the aileron surfaces during 

the functional test of the aileron control 

system backlash. Excessive backlash 

may result in a limit cycle oscillation 

phenomenon exposing the surrounding 

structure and systems to unacceptable 

vibration levels and reducing the 

airplane controllability. 

ANAC has informed the FAA of 

corrections to ANAC AD 2023–05–02 

that were issued in ANAC AD 2023–05– 

02, Errata, dated May 18, 2023. The 

FAA has included these corrections in 

paragraphs (h)(3) and (10) of this AD 

and has also addressed typographical 

errors in paragraphs (h)(4) and (5) of this 

AD. 

The FAA is issuing this AD to address 

the unsafe condition on these products. 

You may examine the MCAI in the 

AD docket at regulations.gov under 

Docket No. FAA–2023–2153. 

Related Service Information Under 1 

CFR Part 51 

ANAC AD 2023–05–02 specifies 

procedures for repetitive general visual 

inspections of the press-fitted bushings 

of the left-hand (LH) and right-hand 

(RH) wing ailerons for migration and 

broken sealant; repetitive detailed 

inspections to measure the distance 

between the LH and RH wing aileron 

surfaces and hinge fittings; repetitive 

functional checks of the backlash of the 

LH and RH wing aileron control system; 

and applicable related investigative and 

corrective actions. The related 

investigative actions include a detailed 

inspection of the torque values of the 

attachments parts on the LH and RH 

wing aileron surfaces; a general visual 

inspection of the press-fitted bushings 

on the LH and RH aileron surfaces, as 

applicable, for damage (i.e., elongation, 

scratches, nicks) and rotation or 

migration (i.e., gap between the bushing 

flange and lug, or broken sealant around 

the bushing); a general visual inspection 

of the sliding bushings of the LH and 

RH aileron surfaces, as applicable, for 

damage (i.e., scratches, steps, and dents) 

and migration of the press-fitted 

bushing pair; a detailed inspection to 

measure the outer diameter of the 

sliding bushings; a detailed inspection 

to check the inner diameter of the pressfitted bushings of certain aileron 

fittings; measurement of the outer 

diameters of the mating sliding bushing 

and bolt shank; and an operational 

check of the aileron control system, or 

a rigging procedure and deflection 

check, as applicable. The corrective 

actions include retorquing the nuts and 

installing cotterpins on the bolts and 

nuts of the attachment parts on the LH 

and RH wing aileron surfaces; and 

replacing the bearings and press-fitted 

and sliding bushings. 

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 ADDRESSES section. 

FAA’s Determination 

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 

is issuing this AD after determining that 

the unsafe condition described 

previously is likely to exist or develop 

on other products of the same type 

design. 

Requirements of This AD 

This AD requires accomplishing the 

actions specified in ANAC AD 2023– 

05–02 described previously, except for 

any differences identified as exceptions 

in the regulatory text of this 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, ANAC AD 2023–05– 

02 is incorporated by reference in this 

AD. This AD requires compliance with 

ANAC AD 2023–05–02 in its entirety 

through that incorporation, except for 

any differences identified as exceptions 

in the regulatory text of this AD. Service 

information required by ANAC AD 

2023–05–02 for compliance will be 

available at regulations.gov under 

Docket No. FAA–2023–2153 after this 

AD is published. 

FAA’s Justification and Determination 

of the Effective Date 

Section 553(b)(3)(B) of the 

Administrative Procedure Act (APA) (5 

U.S.C. 551 et seq.) authorizes agencies 

to dispense with notice and comment 

procedures for rules when the agency, 

for ‘‘good cause,’’ finds that those 

procedures are ‘‘impracticable, 

unnecessary, or contrary to the public 

interest.’’ Under this section, an agency, 

upon finding good cause, may issue a 

final rule without providing notice and 

seeking comment prior to issuance. 

Further, section 553(d) of the APA 

authorizes agencies to make rules 

effective in less than thirty days, upon 

a finding of good cause. 

There are currently no domestic 

operators of these products. 

Accordingly, notice and opportunity for 

prior public comment are unnecessary, 

pursuant to 5 U.S.C. 553(b)(3)(B). In 

addition, for the forgoing reason(s), the 

FAA finds that good cause exists 

pursuant to 5 U.S.C. 553(d) for making 

this amendment effective in less than 30 

days. 

Regulatory Flexibility Act (RFA) 

The requirements of the RFA do not 

apply when an agency finds good cause 

pursuant to 5 U.S.C. 553 to adopt a rule 

without prior notice and comment. 

Because the FAA has determined that it 


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89288 Federal Register / Vol. 88, No. 247 / Wednesday, December 27, 2023 / Rules and Regulations 

has good cause to adopt this rule 

without notice and comment, RFA 

analysis is not required. 

Costs of Compliance 

Currently, there are no affected U.S.- 

registered airplanes. If an affected 

airplane is imported and placed on the 

U.S. Register in the future, the FAA 

provides the following cost estimates to 

comply with this AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Labor cost Parts cost Cost per 

product 

Up to 8 work-hours × $85 per hour = $680 ............................................................................................................ $0 Up to $680. 

The FAA estimates the following 

costs to do any necessary on-condition 

actions that would be required based on 

the results of any required actions. The 

FAA has no way of determining the 

number of aircraft that might need these 

on-condition actions: 

ESTIMATED COSTS OF ON-CONDITION ACTIONS

Labor cost Parts cost Cost per 

product 

Up to 22 work-hours × $85 per hour = $1,870 ....................................................................................................... $500 $2,370 

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, 

and 

(2) Will not affect intrastate aviation 

in Alaska. 

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 

■ 1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

2023–23–09 Embraer S.A. (Type Certificate 

Previously Held by Yabora ̃ Indu ́ stria 

Aerona ́utica S.A.; Embraer S.A.): 

Amendment 39–22611; Docket No. 

FAA–2023–2153; Project Identifier 

MCAI–2023–00688–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective January 11, 2024. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all Embraer S.A. (Type 

Certificate previously held by Yabora ̃

Indu ́ stria Aerona ́utica S.A.; Embraer S.A.) 

Model ERJ 190–400 airplanes, certificated in 

any category. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 27, Flight controls. 

(e) Unsafe Condition 

This AD was prompted by a report of 

unexpected wear on the wing hinge bearing 

assembly of the aileron surfaces found during 

the functional test of the aileron control 

system backlash. The FAA is issuing this AD 

to address wear on the wing hinge bearing 

assembly of the aileron surfaces that could 

lead to excessive backlash. The unsafe 

condition, if not addressed, could result in a 

limit cycle oscillation phenomenon exposing 

the surrounding structure and systems to 

unacceptable vibration levels and reducing 

the airplane controllability. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Requirements 

Except as specified in paragraph (h) of this 

AD: Comply with all required actions and 

compliance times specified in, and in 

accordance with, Ageˆncia Nacional de 

Aviac ̧a ̃o Civil (ANAC) AD 2023–05–02, 

effective May 18, 2023 (ANAC AD 2023–05– 

02). 

(h) Exceptions to ANAC AD 2023–05–02 

(1) Where ANAC AD 2023–05–02 refers to 

its effective date, this AD requires using the 

effective date of this AD. 

(2) This AD requires replacing Table 01 of 

ANAC AD 2023–05–02 with Figure 1 to 

paragraph (h)(2) of this AD; and where 

paragraph (b)(1) of ANAC AD 2023–05–02 

specifies ‘‘Within the applicable intervals 

and limitations established in the ‘Table 01— 

Compliance intervals and limitations’ of this 

AD,’’ this AD requires replacing those words 

with ‘‘Within the applicable compliance time 

specified in ‘Table 01—Compliance Times 

for Initial Inspections’ of this AD.’’ 

Figure 1 to Paragraph (h)(2) 


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Federal Register / Vol. 88, No. 247 / Wednesday, December 27, 2023 / Rules and Regulations 89289 

(3) Where paragraphs (b)(2) and (b)(2)(i) of 

ANAC AD 2023–05–02 specify ‘‘press-fitting 

bushings’’ this AD requires replacing those 

words with ‘‘press-fitted bushings.’’ 

(4) Where paragraphs (b)(2)(i) and (b)(3)(i) 

of ANAC AD 2023–05–02 specify ‘‘before the 

next flight, accomplish the paragraph (c) of 

this AD after to accomplish the paragraph 

(b)(4) of this AD’’ as corrective actions for 

certain conditions, this AD requires replacing 

those words with ‘‘before the next flight, 

accomplish paragraph (c) of this AD after 

accomplishing paragraph (b)(4) of this AD.’’ 

(5) Where paragraph (b)(3) of ANAC AD 

2023–05–02 specifies to ‘‘measure de 

distances,’’ this AD requires replacing those 

words with ‘‘measure the distances.’’ 

(6) All applicable related investigative and 

corrective actions specified in paragraphs 

(b)(4)(iii) and (b)(4)(iii)(a) of ANAC AD 2023– 

05–02 must be done before the next flight 

after the functional check of the left-hand 

(LH) and right-hand (RH) wing aileron 

control system. 

(7) All applicable related investigative 

actions specified in paragraph (c)(4)(ii) of 

ANAC AD 2023–05–02 must be done before 

the next flight after the detailed inspection 

on the LH and RH removed aileron surface, 

as applicable. 

(8) Where paragraph (d) of ANAC AD 

2023–05–02 specifies to repeat the 

inspections ‘‘at each 3,000 FH,’’ this AD 

requires replacing those words with ‘‘at 

intervals not to exceed 3,000 FH’’; and where 

paragraph (d) of ANAC 2023–05–02 specifies 

performing subsequent inspections ‘‘after 

3000 FH,’’ this AD requires replacing those 

words with ‘‘within 3,000 FH.’’ 

(9) Where paragraph (d) of ANAC AD 

2023–05–02 specifies to ‘‘Repeat the 

inspections and the actions required by the 

paragraphs (b) and (c) of this AD,’’ this AD 

requires replacing those words with ‘‘Repeat 

the inspections required by paragraph (b) of 

this AD.’’ 

(10) Where paragraph (e) of ANAC AD 

2023–05–02 specifies ‘‘the paragraphs (b) and 

(c) of this AD have been complied with’’ this 

AD requires replacing those words with 

‘‘paragraphs (b) and (c) of this AD, as 

applicable, have been complied with.’’ 

(11) This AD does not adopt paragraph (f) 

of ANAC AD 2023–05–02. 

(12) Although the service information 

specified in ANAC AD 2023–05–02 specifies 

returning certain parts the manufacturer, this 

AD does not include that requirement. 

(i) No Reporting Requirement 

Although the service information in ANAC 

AD 2023–05–02 specifies to submit certain 

information to the manufacturer, this AD 

does not include that requirement. 

(j) 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 (k) of this AD. Information may be 

emailed to: 9-AVS-AIR-730-AMOC@faa.gov. 

Before using any approved AMOC, notify 

your appropriate principal inspector, or 

lacking a principal inspector, the manager of 

the responsible Flight Standards Office. 

(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. 

(k) Additional Information 

For more information about this AD, 

contact Joshua Bragg, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; phone: 817–222– 

5366; email joshua.k.bragg@faa.gov. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless this AD specifies otherwise. 

(i) Ageˆncia Nacional de Aviac ̧a ̃o Civil 

(ANAC) AD 2023–05–02, effective May 18, 

2023. 

(ii) [Reserved] 

(3) For ANAC AD 2023–05–02, 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—Sa ̃o 

Jose ́ dos Campos—SP, Brazil; phone 55 (12) 

3203–6600; email pac@anac.gov.br; website 

anac.gov.br/en/. You may find this ANAC 

AD on the ANAC website at 


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Table 01 - Compliance Times for Initial Inspections 

Airplanes that have Applicable compliance time, whichever occurs first 

accumulated, as of the 

effective date of this AD, 

the following flight hours 

since new (FHSN) 

6,000 FHSN or more Within 750 flight hours Not applicable 

after the effective date of 

this AD 

5,000 FHSN or more, but Within 1,000 flight hours Before the accumulation of 

less than 6,000 FHSN after the effective date of 6,750 FHSN 

this AD 

3,000 FHSN or more, but Within 2,000 flight hours Before the accumulation of 

less than 5,000 FHSN after the effective date of 6,000 FHSN 

this AD 

Less than 3,000 FHSN Within 3,000 flight hours Before the accumulation of 

after the effective date of 5,000 FHSN 

this AD 
89290 Federal Register / Vol. 88, No. 247 / Wednesday, December 27, 2023 / Rules and Regulations 

sistemas.anac.gov.br/certificacao/DA/ 

DAE.asp. 

(4) 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. 

(5) You may view this material at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, 

visit www.archives.gov/federal-register/cfr/ 

ibr-locations or email fr.inspection@nara.gov. 

Issued on December 14, 2023. 

Victor Wicklund, 

Deputy Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2023–28335 Filed 12–26–23; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2023–1889; Project 

Identifier MCAI–2023–00738–E; Amendment 

39–22623; AD 2023–24–06] 

RIN 2120–AA64 

Airworthiness Directives; Rolls-Royce 

Deutschland Ltd & Co KG Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2021–25– 

04 for certain Rolls-Royce Deutschland 

Ltd & Co KG (RRD) Model Trent 1000 

engines. AD 2021–25–04 required 

operators to revise the airworthiness 

limitations section (ALS) of their 

existing approved continuous 

airworthiness maintenance program by 

incorporating the revised tasks of the 

applicable time limits manual (TLM) for 

each affected model turbofan engine. 

Since the FAA issued AD 2021–05–04, 

the manufacturer revised the TLM to 

introduce new or more restrictive tasks 

and limitations and associated 

thresholds and intervals for life-limited 

parts, which prompted this AD. This AD 

requires revising the ALS of the 

operator’s existing approved engine 

maintenance or inspection program, as 

applicable, to incorporate new or more 

restrictive tasks and limitations and 

associated thresholds and intervals for 

life-limited parts, as specified in a 

European Union Aviation Safety Agency 

(EASA) 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 January 31, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of January 31, 2024. 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2023–1889; 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: 

• For service information identified 

in this final rule, contact EASA, KonradAdenauer-Ufer 3, 50668 Cologne, 

Germany; phone: +49 221 8999 000; 

email: ADs@easa.europa.eu; website: 

easa.europa.eu. You may find this 

material on the EASA website at 

ad.easa.europa.eu. 

• You may view this service 

information at the FAA, Airworthiness 

Products Section, Operational Safety 

Branch, 1200 District Avenue, 

Burlington, MA 01803. For information 

on the availability of this material at the 

FAA, call (817) 222–5110. It is also 

available at regulations.gov under 

Docket No. FAA–2023–1889. 

FOR FURTHER INFORMATION CONTACT: 

Sungmo Cho, Aviation Safety Engineer, 

FAA, 2200 South 216th Street, Des 

Moines, WA 98198; phone: (781) 238– 

7241; email: sungmo.d.cho@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to supersede AD 2021–25–04, 

Amendment 39–21847 (86 FR 71129, 

December 15, 2021) (AD 2021–25–04). 

AD 2021–25–04 applied to RRD Model 

Trent 1000–AE3, Trent 1000–CE3, Trent 

1000–D3, Trent 1000–G3, Trent 1000– 

H3, Trent 1000–J3, Trent 1000–K3, 

Trent 1000–L3, Trent 1000–M3, Trent 

1000–N3, Trent 1000–P3, Trent 1000– 

Q3, and Trent 1000–R3 engines. AD 

2021–25–04, which was prompted by 

EASA AD 2020–0243, dated November 

5, 2020 (EASA AD 2020–0243), required 

revising the ALS of the operator’s 

existing approved engine maintenance 

or inspection program, as applicable, to 

incorporate new or more restrictive 

tasks and limitations and associated 

thresholds and intervals for life-limited 

parts. The FAA issued AD 2021–25–04 

to prevent the failure of critical rotating 

parts, which could result in failure of 

one or more engines, loss of thrust 

control, and loss of the airplane. 

Since the FAA issued AD 2021–25– 

04, EASA superseded EASA AD 2020– 

0243 with EASA AD 2022–0247, dated 

December 14, 2022 (EASA AD 2022– 

0247) and then superseded EASA AD 

2022–0247 with EASA AD 2023–0115, 

dated June 7, 2023 (EASA AD 2023– 

0115). 

The NPRM published in the Federal 

Register on September 18, 2023 (88 FR 

63885); corrected on September 27, 

2023 (88 FR 66316). The NPRM was 

prompted by EASA AD 2023–0115 (also 

referred to as the MCAI), issued by 

EASA, which is the Technical Agent for 

the Member States of the European 

Union. The MCAI states that the 

manufacturer published a revised 

engine TLM to introduce new or more 

restrictive tasks and limitations and 

associated thresholds and intervals for 

life-limited parts. 

You may examine the MCAI in the 

AD docket at regulations.gov under 

Docket No. FAA–2023–1889. 

In the NPRM, the FAA proposed to 

require revising the ALS of the 

operator’s existing approved engine 

maintenance or inspection program, as 

applicable, to incorporate new or more 

restrictive tasks and limitations and 

associated thresholds and intervals for 

life-limited parts. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received a comment from 

The Boeing Company (Boeing). Boeing 

supported the NPRM without change. 

Conclusion 

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 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 comment received, 

and determined that air safety requires 

adopting the AD as proposed. 

Accordingly, the FAA is issuing this AD 

to address the unsafe condition on these 

products. Except for minor editorial 

changes, this AD is adopted as proposed 

in the NPRM. 


ddrumheller on DSK120RN23PROD with RULES1