Federal Register / Vol. 89, No. 186 / Wednesday, September 25, 2024 / Rules and Regulations 78229 

(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 August 6, 2024. 

Peter A. White, 

Deputy Director, Integrated Certificate 

Management Division, Aircraft Certification 

Service. 

[FR Doc. 2024–21797 Filed 9–24–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–1304; Project 

Identifier MCAI–2023–01134–T; Amendment 

39–22822; AD 2024–16–16] 

RIN 2120–AA64 

Airworthiness Directives; Embraer S.A. 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2020–25– 

07, which applied to certain Embraer 

S.A. Model EMB–550 and EMB–545 

airplanes. AD 2020–25–07 required 

repetitive inspections of the flight deck 

side windows for any cracking or 

delamination, corrective action if 

necessary, and eventual replacement of 

the windows. Since the FAA issued AD 

2020–25–07, additional part numbers 

were added to the installation 

prohibition list. This AD continues to 

require the actions in AD 2020–25–07, 

expands the list of affected parts, and 

prohibits the installation of affected 

parts, 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 October 30, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of October 30, 2024. 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2024–1304; 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 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—Sa ̃o Jose ́

dos Campos—SP, Brazil; telephone 55 

(12) 3203–6600; email pac@anac.gov.br; 

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

this material on the ANAC website 

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 Street, 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–2024–1304. 

FOR FURTHER INFORMATION CONTACT: 

Hassan Ibrahim, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; 

telephone 206–231–3653; email 

Hassan.M.Ibrahim@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to supersede AD 2020–25–07, 

Amendment 39–21349 (85 FR 81385, 

December 16, 2020) (AD 2020–25–07). 

AD 2020–25–07 applied to certain 

Embraer S.A. Model EMB–550 and 

EMB–545 airplanes. AD 2020–25–07 

required repetitive inspections of the 

flight deck side windows for any 

cracking or delamination, corrective 

action if necessary, and eventual 

replacement of the windows. The FAA 

issued AD 2020–25–07 to address cracks 

and delamination, which could cause 

the flight deck side windows to fail and 

lead to an in-flight depressurization 

event. 

The NPRM published in the Federal 

Register on May 17, 2024 (89 FR 43336). 

The NPRM was prompted by AD 2020– 

04–01R02, effective November 2, 2023, 

issued by ANAC, which is the aviation 

authority for Brazil (ANAC AD 2020– 

04–01R02) (also referred to as the 

MCAI). The MCAI states that part 

number (P/N) NP–200402–7 and P/N 

NP–200402–8, made mandatory by the 

previous revisions of the MCAI, have 

not had the expected effect on the fleet 

as premature cracks in the outer layer of 

windows with P/N NP–200402–7 and P/ 

N NP–200402–8 have been found. These 

cracks may be undetected, and the inner 

layer may be subjected to unpredicted 

loads for several flights, which could 

result in window failure and subsequent 

in-flight depressurization events. 

In the NPRM, the FAA proposed to 

continue to require the actions in AD 

2020–25–07, expand the list of affected 

parts, and prohibit the installation of 

affected parts, as specified in ANAC AD 

2020–04–01R02. 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–2024–1304. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received no comments on 

the NPRM or on the determination of 

the cost to the public. 

Additional Changes Made to This AD 

The FAA revised paragraph (h)(5) of 

this AD to clarify that the 50 flight cycle 

grace period is ‘‘within 50 flight cycles 

after the effective date of this AD.’’ In 

the proposed AD, the FAA inadvertently 

omitted the wording ‘‘after the effective 

date of this AD.’’ 

After the FAA issued the proposed 

AD, ANAC issued an Errata to ANAC 

AD 2020–04–01R02, effective November 

2, 2023, to clarify the actions if an 

inspection is done and delamination or 

other damage which does not impact the 

ability to properly perform the 

inspection is found. As originally 

written, operators could have concluded 

a windshield needed to be replaced 

even if the only inspection finding was 

delamination in an area that did not 

impede the inspection. The FAA has 

revised paragraph (h)(3) of this AD to 

clarify the action for this condition. 

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 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, and any other changes 

described previously, this AD is 


ddrumheller on DSK120RN23PROD with RULES1
78230 Federal Register / Vol. 89, No. 186 / Wednesday, September 25, 2024 / Rules and Regulations 

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 2020–04–01R02 specifies 

procedures for initial and repetitive 

detailed inspections of the left-hand 

flight deck side window P/N NP– 

200402–1 or P/N NP–200402–5 and 

right-hand flight deck side window P/N 

NP–200402–2 or P/N NP–200402–6 to 

detect cracks, delamination, or any 

other damage (such as scratches, 

chipping, erosion, and crazing), and 

replacement of the windows with a new 

window P/N NP–200402–9 or P/N NP– 

200402–10, as applicable. ANAC AD 

2020–04–01R02 also prohibits the 

installation of flight deck side windows 

with P/N NP–200402–1, P/N NP– 

200402–2, P/N NP–200402–5, P/N NP– 

200402–6, P/N NP–200402–7, and P/N 

NP–200402–8, on any airplane. 

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. 

Costs of Compliance 

The FAA estimates that this AD 

affects 44 airplanes of U.S. registry. The 

FAA estimates the following costs to 

comply with this AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Action Labor cost Parts cost Cost per product Cost on U.S. 

operators 

Retained actions from AD 

2020–25–07.

1 work-hour × $85 per hour = 

$85 per inspection cycle.

$0 $85 per inspection cycle ........ $3,740 per inspection cycle. 

The FAA estimates the following 

costs to do any necessary on-condition 

action 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 this 

on-condition action: 

ESTIMATED COSTS OF ON-CONDITION ACTIONS

Labor cost Parts cost Cost per 

window 

15 work-hours × $85 per hour = $1,275 ................................................................................................................. $21,636 $22,911 

According to the manufacturer, some 

or all of the costs of this 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 

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 

■ 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: 

■ a. Removing Airworthiness Directive 

2020–25–07, Amendment 39–21349 (85 

FR 81385, December 16, 2020); and 

■ b. Adding the following new 

Airworthiness Directive: 

2024–16–16 Embraer S.A.: Amendment 39– 

22822; Docket No. FAA–2024–1304; 

Project Identifier MCAI–2023–01134–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective October 30, 2024. 

(b) Affected ADs 

This AD replaces AD 2020–25–07, 

Amendment 39–21349 (85 FR 81385, 

December 16, 2020) (AD 2020–25–07). 

(c) Applicability 

This AD applies to Embraer S.A. Model 

EMB–550 and EMB–545 airplanes, 

certificated in any category, as identified in 

Ageˆncia Nacional de Aviac ̧a ̃o Civil (ANAC) 

AD 2020–04–01R02, effective November 2, 

2023 (ANAC AD 2020–04–01R02). 


ddrumheller on DSK120RN23PROD with RULES1
Federal Register / Vol. 89, No. 186 / Wednesday, September 25, 2024 / Rules and Regulations 78231 

(d) Subject 

Air Transport Association (ATA) of 

America Code 56, Windows. 

(e) Unsafe Condition 

This AD was prompted by reports of 

cracks, delamination, and failure of the flight 

deck side windows during certification 

fatigue tests. The FAA is issuing this AD to 

address such cracks and delamination, and 

any other damage of the flight deck side 

windows. The unsafe condition, if not 

addressed, could result in flight deck side 

windows to fail and lead to an in-flight 

depressurization event. 

(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, ANAC AD 2020–04–01R02. 

(h) Exceptions to ANAC AD 2020–04–01R02 

(1) Where ANAC AD 2020–04–01R02 refers 

to its effective date, this AD requires using 

the effective date of this AD. 

(2) Where paragraph (b)(1) of ANAC AD 

2020–04–01R02 refers to April 17, 2020 (the 

effective date of the original issue of ANAC 

AD 2020–04–01), this AD requires using 

January 21, 2021 (the effective date of AD 

2020–25–07). 

(3) Where paragraph (b)(1)(iii) of ANAC AD 

2020–04–01R02 specifies ‘‘In case of no 

crack, delamination, or any other damage, no 

action is required at this time,’’ this AD 

requires replacing that text with ‘‘in the case 

of no findings specified in paragraphs 

(b)(1)(i) and (ii) of ANAC AD 2020–04– 

01R02, no further action is required by this 

AD until the next inspection interval.’’ 

(4) Where paragraph (b)(2) of ANAC AD 

2020–04–01R02 refers to the compliance time 

of the repetitive inspections, ‘‘at each 750 

Flight Hours (FH),’’ this AD requires 

replacing that text with ‘‘at intervals not to 

exceed 750 flight hours.’’ 

(5) Where paragraph (c) of ANAC AD 

2020–04–01R02 refers to the compliance time 

for the replacement of the flight deck side 

windows as, ‘‘before the airplane logs 3,400 

Flight Cycles Since New (FCSN),’’ this AD 

requires replacing that text with ‘‘before the 

airplane logs 3,400 FCSN, or within 50 flight 

cycles after the effective date of this AD, 

whichever occurs later.’’ 

(6) Replacement of the flight deck side 

windows as specified in paragraph (c) of 

ANAC AD 2020–04–01R02 terminates the 

repetitive inspections for the flight deck side 

windows specified in paragraph (b)(2) of 

ANAC AD 2020–04–01R02. 

(7) This AD does not adopt paragraph (e) 

of ANAC AD 2020–04–01R02. 

(i) 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 (j) 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. 

(j) Additional Information 

For more information about this AD, 

contact Hassan Ibrahim, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; telephone 206– 

231–3653; email Hassan.M.Ibrahim@faa.gov. 

(k) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 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. 

(i) Ageˆncia Nacional de Aviac ̧a ̃o Civil 

(ANAC) AD 2020–04–01R02, effective 

November 2, 2023. 

(ii) [Reserved] 

(3) For ANAC material identified in this 

AD, 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; telephone 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 

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 Street, 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-locationsoremailfr.inspection@nara.gov. 

Issued on September 19, 2024. 

Victor Wicklund, 

Deputy Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2024–21853 Filed 9–24–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–1479; Project 

Identifier MCAI–2023–00657–T; Amendment 

39–22824; AD 2024–16–18] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc., Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

Bombardier, Inc., Model BD–100–1A10 

airplanes. This AD was prompted by a 

determination that a revised restrictive 

airworthiness limitation is necessary. 

This AD requires revising the existing 

maintenance or inspection program, as 

applicable, to incorporate a revised 

restrictive airworthiness limitation for 

the aft engine mount attachment bolts. 

The FAA is issuing this AD to address 

the unsafe condition on these products. 

DATES: This AD is effective October 30, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of October 30, 2024. 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2024–1479; 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 Bombardier material identified 

in this AD, contact Bombardier Business 

Aircraft Customer Response Center, 400 

Coˆte-Vertu Road West, Dorval, Que ́bec 

H4S 1Y9, Canada; telephone 514–855– 

2999; email ac.yul@

aero.bombardier.com; website 

bombardier.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. 

It is also available at regulations.gov 

under Docket No. FAA–2024–1479. 


ddrumheller on DSK120RN23PROD with RULES1