This section of the FEDERAL REGISTER

contains regulatory documents having general

applicability and legal effect, most of which

are keyed to and codified in the Code of

Federal Regulations, which is published under

50 titles pursuant to 44 U.S.C. 1510.

The Code of Federal Regulations is sold by

the Superintendent of Documents.

Rules and Regulations Federal Register

77013 

Vol. 89, No. 183 

Friday, September 20, 2024 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–2146; Project 

Identifier AD–2024–00464–E; Amendment 

39–22849; AD 2024–19–07] 

RIN 2120–AA64 

Airworthiness Directives; CFM 

International, S.A. Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

CFM International, S.A. (CFM) Model 

LEAP–1A32 engines. This AD was 

prompted by a report of multiple events 

of loss of thrust control during goaround. This AD requires replacement 

of the full set of fuel nozzles. The FAA 

is issuing this AD to address the unsafe 

condition on these products. 

DATES: This AD is effective October 7, 

2024. 

The FAA must receive comments on 

this AD by November 4, 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–2024–2146; 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, any comments 

received, and other information. The 

street address for Docket Operations is 

listed above. 

FOR FURTHER INFORMATION CONTACT: 

Mehdi Lamnyi, Aviation Safety 

Engineer, FAA, 2200 South 216th Street, 

Des Moines, WA 98198; phone: (781) 

238–7743; email: mehdi.lamnyi@

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 the ADDRESSES

section. Include ‘‘Docket No. FAA– 

2024–2146; Project Identifier AD–2024– 

00464–E’’ 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 

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 Mehdi Lamnyi, 

Aviation Safety Engineer, FAA, 2200 

South 216th Street, Des Moines, WA 

98198. Any commentary that the FAA 

receives which is not specifically 

designated as CBI will be placed in the 

public docket for this rulemaking. 

Background 

On January 11, 2024, an Airbus Model 

A321neo airplane powered by CFM 

Model LEAP–1A engines experienced a 

loss of thrust control on engine 1 during 

a go-around. On February 4, 2024, the 

same Airbus Model A321neo airplane 

experienced N1 fluctuation/reduction 

on engine 2 during a go-around. A 

manufacturer investigation determined 

that significantly higher than expected 

fuel nozzle coking was creating back 

pressure in the fuel system that then 

triggered the fuel pump relief valve to 

open, reducing fuel flow to the engine 

and resulting in a reduction in thrust. 

This condition, if not addressed, could 

result in loss of engine thrust control 

and reduced control of the airplane. The 

FAA is issuing this AD to address the 

unsafe condition on these products. 

FAA’s Determination 

The FAA is issuing this AD because 

the agency determined the unsafe 

condition described previously is likely 

to exist or develop in other products of 

the same type design. 

AD Requirements 

This AD requires replacement of the 

full set of fuel nozzles. 

Interim Action 

The FAA considers this AD to be an 

interim action. The unsafe condition is 

still under investigation by the 

manufacturer and, depending on the 

results of that investigation, the FAA 

may consider further rulemaking action. 

Justification for Immediate Adoption 

and Determination of the Effective Date 

Section 553(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 


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77014 Federal Register / Vol. 89, No. 183 / Friday, September 20, 2024 / Rules and Regulations 

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. 

The FAA justifies waiving notice and 

comment prior to adoption of this rule 

because no domestic operators use this 

product. It is unlikely that the FAA will 

receive any adverse comments or useful 

information about this AD from any U.S. 

operator. Accordingly, notice and 

opportunity for prior public comment 

are unnecessary, pursuant to 5 U.S.C. 

553(b). In addition, for the foregoing 

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 

The requirements of the Regulatory 

Flexibility Act (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 FAA 

has determined that it has good cause to 

adopt this rule without prior notice and 

comment, RFA analysis is not required. 

Costs of Compliance 

The FAA estimates that this AD 

affects 0 engines installed on airplanes 

of U.S. registry. 

The FAA estimates the following 

costs to comply with this AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Replace the full set of fuel nozzles ................ 40 work-hours × $85 per hour = $3,400 ........ $126,000 $129,400 $0 

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: 

2024–19–07 CFM International, S.A.: 

Amendment 39–22849; Docket No. 

FAA–2024–2146; Project Identifier AD– 

2024–00464–E. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective October 7, 2024. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to CFM International, S.A. 

(CFM) Model LEAP–1A32 engines installed 

on Airbus SAS Model A321–251NX airplanes 

having any of the following airplane serial 

numbers: 11200, 11420, 11473, 11609, 11698, 

11791, 11815, 12136, 12314, and 12370. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 7300, Engine Fuel and Control. 

(e) Unsafe Condition 

This AD was prompted by a report of 

multiple events of loss of thrust control 

during go-around. The FAA is issuing this 

AD to prevent the loss of engine thrust 

control. The unsafe condition, if not 

addressed, could result in reduced control of 

the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

(1) At the applicable times specified in 

paragraphs (g)(1)(i) and (ii) of this AD, 

replace the full set of fuel nozzles, on each 

engine, with parts eligible for installation. 

(i) On either affected engine installed on 

the airplane: Before accumulating 600 flight 

cycles (FCs) since new or since last 

replacement of the full set of fuel nozzles, or 

within 10 FCs after the effective date of this 

AD, whichever occurs later. 

(ii) On the other affected engine installed 

on the same airplane: Before accumulating 

800 FCs since new or since last replacement 

of the full set of fuel nozzles, or within 10 

FCs after the effective date of this AD, 

whichever occurs later. 

(2) Thereafter, on each affected engine 

installed on the airplane, at intervals not to 

exceed 600 FCs since last replacement of the 

full set of fuel nozzles, replace the full set of 

fuel nozzles with parts eligible for 

installation. 

(h) Definition 

For the purpose of this AD, ‘‘parts eligible 

for installation’’ are new fuel nozzles or fuel 

nozzles made serviceable using CFM 

Component Maintenance Manual (CMM) 73– 

11–30 (CFM–TP.CM.056.), any revision. 

(i) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, AIR–520 Continued 

Operational Safety 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 local Flight Standards District Office, as 

appropriate. If sending information directly 

to the manager of AIR–520 Continued 

Operational Safety Branch, send it to the 

attention of the person identified in 

paragraph (j)(1) of this AD and email to: 

AMOC@faa.gov. 

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 


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Federal Register / Vol. 89, No. 183 / Friday, September 20, 2024 / Rules and Regulations 77015 

of the local flight standards district office/ 

certificate holding district office. 

(j) Additional Information 

(1) For more information about this AD, 

contact Mehdi Lamnyi, Aviation Safety 

Engineer, FAA, 2200 South 216th Street, Des 

Moines, WA 98198; phone: (781) 238–7743; 

email: mehdi.lamnyi@faa.gov. 

(2) Material identified in this AD that is not 

incorporated by reference is available at CFM 

International, S.A., GE Aviation Fleet 

Support, 1 Neumann Way, M/D Room 285, 

Cincinnati, OH 45215; phone: (877) 432– 

3272; email: aviation.fleetsupport@ge.com. 

(k) Material Incorporated by Reference 

None. 

Issued on September 13, 2024. 

Peter A. White, 

Deputy Director, Integrated Certificate 

Management Division, Aircraft Certification 

Service. 

[FR Doc. 2024–21408 Filed 9–19–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2024–0053; Airspace 

Docket No. 23–AWA–5] 

RIN 2120–AA66 

Amendment of Class C Airspace; Fort 

Lauderdale-Hollywood International 

Airport, FL 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: This action amends the Fort 

Lauderdale-Hollywood International 

Airport, FL (FLL), Class C airspace by 

subdividing the southwest corner of 

Area E to reduce the lateral boundary of 

the FLL Class C airspace by creating a 

new ‘‘Area H’’ southwest of the existing 

Area E with a floor of 2,600 feet mean 

sea level (MSL) and a ceiling of 4,000 

feet MSL. The FAA is making this 

amendment to enhance safety and 

enable more efficient operations for 

non-participating aircraft operations at 

North Perry Airport, FL (HWO). 

Additionally, this action makes multiple 

minor editorial amendments to the 

airspace description. 

DATES: Effective date 0901 UTC, 

December 26, 2024. The Director of the 

Federal Register approves this 

incorporation by reference action under 

1 CFR part 51, subject to the annual 

revision of FAA Order 7400.11 and 

publication of conforming amendments. 

ADDRESSES: A copy of the Notice of 

Proposed Rulemaking (NPRM), all 

comments received, this final rule, and 

all background material may be viewed 

online at www.regulations.gov using the 

FAA Docket number. Electronic 

retrieval help and guidelines are 

available on the website. It is available 

24 hours each day, 365 days each year. 

FAA Order JO 7400.11J, Airspace 

Designations and Reporting Points, and 

subsequent amendments can be viewed 

online at www.faa.gov/air_traffic/ 

publications/. You may also contact the 

Rules and Regulations Group, Policy 

Directorate, Federal Aviation 

Administration, 600 Independence 

Avenue SW, Washington, DC 20597; 

telephone: (202) 267–8783. 

FOR FURTHER INFORMATION CONTACT: 

Brian Vidis, Rules and Regulations 

Group, Policy Directorate, Federal 

Aviation Administration, 600 

Independence Avenue SW, Washington, 

DC 20597; telephone: (202) 267–8783. 

SUPPLEMENTARY INFORMATION: 

Authority for This Rulemaking 

The FAA’s authority to issue rules 

regarding aviation safety is found in 

Title 49 of the United States Code. 

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. This rulemaking is 

promulgated under the authority 

described in Subtitle VII, Part A, 

Subpart I, Section 40103. Under that 

section, the FAA is charged with 

prescribing regulations to assign the use 

of the airspace necessary to ensure the 

safety of aircraft and the efficient use of 

airspace. This regulation is within the 

scope of that authority as it modifies 

terminal airspace as required to preserve 

the safe and efficient flow of air traffic 

in the Fort Lauderdale, FL area. 

History 

The FAA published a NPRM for 

Docket No. FAA–2024–0053 in the 

Federal Register (89 FR 27691; April 18, 

2024) proposing to amend the FLL, 

Class C airspace. Interested parties were 

invited to participate in this rulemaking 

effort by submitting written comments 

on the proposal. Ten comments were 

received. 

Discussion of Comments 

The FAA received nine comments 

supporting the amendment of the Fort 

Lauderdale-Hollywood International 

Airport Class C airspace. One comment 

was received that was outside of the 

scope of this rulemaking. 

Differences From the NPRM 

Subsequent to publication of the 

NPRM, the FAA identified inconsistent 

boundary area language used in the 

Area A, B, D, E, F, and G descriptions 

to describe boundaries aligned with 

either Oakland Park Boulevard or 

Hollywood Boulevard. This action 

makes minor editorial amendments to 

clearly indicate the affected area 

description boundaries alignment with 

the roads by inserting the words 

‘‘aligned with’’ to each description 

referencing the roads. 

In the Area A description, ‘‘(the 

eastern most portion of Oakland Park 

Boulevard located in Lauderdale 

Beach)’’ is changed to read ‘‘(aligned 

with the easternmost portion of Oakland 

Park Boulevard located in Lauderdale 

Beach)’’; and ‘‘(the eastern most portion 

of Hollywood Boulevard located in 

Hollywood)’’ is changed to read 

‘‘(aligned with the easternmost portion 

of Hollywood Boulevard located in 

Hollywood).’’ In the Area B description, 

‘‘(the eastern most portion of Oakland 

Park Boulevard located in Lauderdale 

Beach)’’ is changed to read ‘‘(aligned 

with the easternmost portion of Oakland 

Park Boulevard located in Lauderdale 

Beach).’’ In the Area D description, 

‘‘(the eastern most portion of Hollywood 

Boulevard located in Hollywood)’’ is 

changed to read ‘‘(aligned with the 

easternmost portion of Hollywood 

Boulevard located in Hollywood).’’ In 

the Area E description, ‘‘(the eastern 

most portion of Oakland Park Boulevard 

located in Lauderdale Beach)’’ is 

changed to read ‘‘(aligned with the 

easternmost portion of Oakland Park 

Boulevard located in Lauderdale 

Beach).’’ In the Area F description, ‘‘(the 

eastern most portion of Hollywood 

Boulevard located in Hollywood)’’ is 

changed to read ‘‘(aligned with the 

easternmost portion of Hollywood 

Boulevard located in Hollywood)’’; and 

‘‘(the eastern most portion of Oakland 

Park Boulevard located in Lauderdale 

Beach)’’ is changed to read ‘‘(aligned 

with the easternmost portion of Oakland 

Park Boulevard located in Lauderdale 

Beach).’’ In the Area G description, 

‘‘(the eastern most portion of Oakland 

Park Boulevard located in Lauderdale 

Beach)’’ is changed to read ‘‘(aligned 

with the easternmost portion of Oakland 

Park Boulevard located in Lauderdale 

Beach)’’; and ‘‘(the eastern most portion 

of Hollywood Boulevard located in 

Hollywood)’’ is changed to read 

‘‘(aligned with the easternmost portion 

of Hollywood Boulevard located in 

Hollywood).’’ 

These minor editorial amendments 

are administrative and do not affect the 

airspace boundaries or operating 

requirements. 


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