258 Federal Register / Vol. 89, No. 2 / Wednesday, January 3, 2024 / Rules and Regulations 

(g) Visual Inspection for Portable PBE 

Within 12 months from the effective date 

of this AD, do a general visual inspection of 

the left-side forward wardrobe, flight deck, or 

passenger cabin area of the airplane and 

verify if a portable PBE device, marked with 

Technical Standard Order (TSO) C116 or 

C116a, is installed and placarded, in 

accordance with paragraph 2.B.(1) of the 

Accomplishment Instructions of Bombardier 

Service Bulletin 604–35–008, Revision 02, 

dated January 13, 2023. If the PBE device is 

missing, before further flight, install a 

portable PBE device marked with TSO C116 

or TSO C116a and its associated placard, in 

accordance with paragraph 2.B.(2) of the 

Accomplishment Instructions of Bombardier 

Service Bulletin 604–35–008, Revision 02, 

dated January 13, 2023. 

(h) 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, International Validation 

Branch, mail it to the address identified in 

paragraph (i)(2) of this AD or email to: 9- 

AVS-AIR-730-AMOC@faa.gov. If mailing 

information, also submit information by 

email. 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 Transport Canada or 

Bombardier, Inc.’s Transport Canada Design 

Approval Organization (DAO). If approved by 

the DAO, the approval must include the 

DAO-authorized signature. 

(i) Additional Information 

(1) Refer to Transport Canada AD CF– 

2023–21, dated March 30, 2023, for related 

information. This Transport Canada AD may 

be found in the AD docket at regulations.gov 

under Docket No. FAA–2023–1715. 

(2) For more information about this AD, 

contact Gabriel Kim, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; telephone 516– 

228–7300; email 9-avs-nyaco-cos@faa.gov. 

(j) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) 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) Bombardier Service Bulletin 604–35– 

008, Revision 02, dated January 13, 2023. 

(ii) [Reserved] 

(3) For service information identified in 

this AD, contact Bombardier, Inc., Business 

Aircraft Customer Response Center, 400 CoˆteVertu Road West, Dorval, Que ́bec H4S 1Y9, 

Canada; telephone 514–855–2999; email: 

ac.yul@aero.bombardier.com; website: 

bombardier.com. 

(4) You may view this service information 

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

Issued on December 14, 2023. 

Victor Wicklund, 

Deputy Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2023–28849 Filed 1–2–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2023–1882; Project 

Identifier MCAI–2023–00651–T; Amendment 

39–22632; AD 2023–25–05] 

RIN 2120–AA64 

Airworthiness Directives; Airbus SAS 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2022–07– 

15, which applied to all Airbus SAS 

Model A318, A319, A320, and A321 

series airplanes. AD 2022–07–15 

required replacing affected braking and 

steering control units (BSCUs) and 

revising the operator’s existing FAAapproved minimum equipment list 

(MEL). This AD was prompted by a 

determination that a type 1 relay 

combined with an affected BSCU would 

induce BSCU freezing. This AD removes 

certain airplanes from the applicability, 

retains the requirements of AD 2022– 

07–15, requires an inspection for the 

relay type installed and replacement of 

type 1 relays with type 2 relays, limits 

the installation of affected BSCUs on 

certain airplanes and prohibits the 

installation of affected BSCUs for 

certain other airplanes 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 February 7, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of February 7, 2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain other publication listed in 

this AD as of May 2, 2022 (87 FR 22438, 

April 15, 2022). 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2023–1882; 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 EASA material incorporated by 

reference in this AD, contact EASA, 

Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +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. 

• For Airbus service information 

incorporated by reference in this AD, 

contact Airbus SAS, Airworthiness 

Office—EIAS, Rond-Point Emile 

Dewoitine No: 2, 31700 Blagnac Cedex, 

France; telephone +33 5 61 93 36 96; fax 

+33 5 61 93 44 51; email 

account.airworth-eas@airbus.com; 

website airbus.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 in the AD docket at 

regulations.gov under Docket No. FAA– 

2023–1882. 

FOR FURTHER INFORMATION CONTACT: 

Timothy Dowling, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; 

telephone 206–231–3667; email 

Timothy.P.Dowling@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to supersede AD 2022–07–15, 


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Federal Register / Vol. 89, No. 2 / Wednesday, January 3, 2024 / Rules and Regulations 259 

Amendment 39–22003 (87 FR 22438, 

April 15, 2022) (AD 2022–07–15). AD 

2022–07–15 applied to all Airbus SAS 

Model A318–111, –112, –121, and –122 

airplanes; Model A319–111, –112, –113, 

–114, –115, –131, –132, –133, –151N, 

–153N, and –171N airplanes; Model 

A320–211, –212, –214, –216, –231, 

–232, –233, –251N, –252N, –253N, 

–271N, –272N, –273N airplanes; and 

Model A321–111, –112, –131, –211, 

–212, –213, –231, –232, –251N, –251NX, 

–252N, –252NX, –253N, –253NX, 

–271N, –271NX, –272N, and –272NX 

airplanes. AD 2022–07–15 required 

replacing affected BSCUs and revising 

the operator’s existing FAA-approved 

MEL. The FAA issued AD 2022–07–15 

to address loss of braking performance 

with significant increase in airplane 

stopping distance, possibly resulting in 

a runway excursion. 

The NPRM published in the Federal 

Register on September 27, 2023 (88 FR 

66307). The NPRM was prompted by 

AD 2023–0093R1, dated May 15, 2023, 

issued by EASA, which is the Technical 

Agent for the Member States of the 

European Union (EASA AD 2023– 

0093R1) (also referred to as the MCAI). 

The MCAI notes that the previous 

detection of several BSCU channel 

failures could induce, in the event of 

dual channel failures, loss of anti-skid 

function together with the reversion to 

the alternate braking mode, and loss of 

nose wheel steering, and lead to loss of 

braking performance with significant 

increase in airplane stopping distance, 

possibly resulting in a runway 

excursion. The MCAI states that further 

investigation identified a type 1 relay 

installed in a position where a type 2 

relay should have been installed. The 

combination of a type 1 relay with an 

affected BSCU could induce BSCU 

freezing. EASA therefore determined 

that it is necessary to replace type 1 

relays with type 2 relays. 

The MCAI also states that type 1 

relays are no longer installed on Model 

A320 Current Engine Option (CEO) 

airplanes (i.e., Model A318 series 

airplanes; A319–111, –112, –113, –114, 

–115, –131, –132, and –133 airplanes; 

A320–211, –212, –214, –216, –231, 

–232, and –233 airplanes; and A321– 

111, –112, –131, –211, –212, –213, –231, 

and –232 airplanes). Type 1 relays were 

required to be replaced on Model A320 

CEO airplanes by AD 96–04–06, 

Amendment 39–9518 (61 FR 6927, 

February 23, 1996). AD 96–04–06 

corresponded to DGAC France AD F– 

1993–163–043, dated September 29, 

1993. Model A320 CEO airplanes are 

therefore not included in the 

applicability of this AD. 

Further, the MCAI states that some 

relays installed at functional item 

number (FIN) locations 24GG and 25GG 

were not in conformity with the 

Airplane Inspection Report on certain 

airplanes. 

In addition, it was determined that 

certain airplanes have been delivered 

with a BSCU P/N E21327107. 

In the NPRM, the FAA proposed to 

remove certain airplanes from the 

applicability, retain the requirements of 

AD 2022–07–15, require an inspection 

for the relay type installed and 

replacement of type 1 relays with type 

2 relays, limit the installation of affected 

BSCUs on certain airplanes and prohibit 

the installation of affected BSCUs for 

certain other airplanes, as specified in 

EASA AD 2023–0093R1 described 

previously. 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–2023–1882. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received a comment from 

United Airlines, which supported the 

NPRM without change. 

Conclusion 

This product has been approved by 

the aviation authority of another 

country and is approved for operation in 

the United States. Pursuant to the FAA’s 

bilateral agreement with this State of 

Design Authority, it has notified the 

FAA of the unsafe condition described 

in the MCAI referenced above. The FAA 

reviewed the relevant data, considered 

the comment received, and determined 

that air safety requires adopting this AD 

as proposed. Accordingly, the FAA is 

issuing this AD to address the unsafe 

condition on this product. Except for 

minor editorial changes, this AD is 

adopted as proposed in the NPRM. 

None of the changes will increase the 

economic burden on any operator. 

Related Service Information Under 1 

CFR Part 51 

EASA AD 2023–0093R1 specifies 

procedures for replacing affected BSCUs 

if a fault signature is triggered, and 

implementing the instructions of master 

minimum equipment list (MMEL) 

updates on the basis of which the 

operator’s existing MEL must be 

amended–that is, procedures for 

revising the operator’s existing FAAapproved MEL with the provisions in 

the MMEL updates specified in the 

EASA AD. EASA AD 2023–0093R1 also 

specifies procedures for a general visual 

inspection of the FINs 24GG and 25GG 

to identify the relay type installed, and 

replacement of each type 1 relay with a 

type 2 relay. EASA AD 2023–0093R1 

also limits the installation of affected 

parts. 

Airbus Alert Operators Transmission 

A32N025–22, Rev 01, dated May 10, 

2023, including Appendixes 1 through 

3, dated May 2023, defines BSCU fault 

signatures that may be triggered on the 

airplane, and specifies procedures for 

replacing affected parts, among other 

actions. 

This AD also requires Airbus Alert 

Operators Transmission A32N025–22, 

Rev 00, dated February 24, 2022, 

including Appendixes 1 through 4, 

dated February 21, 2022, which the 

Director of the Federal Register 

approved for incorporation by reference 

as of May 2, 2022 (87 FR 22438, April 

15, 2022). 

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 349 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 2022– 

07–15.

Up to 5 work-hours × $85 per 

hour = $425.

$0 Up to $425 ................................ Up to $148,325. 

Relay inspection and replacement (new actions).Up to 9 work-hours × $85 per 

hour = $765.

0 Up to $765 ................................ Up to $266,985. 


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260 Federal Register / Vol. 89, No. 2 / Wednesday, January 3, 2024 / Rules and Regulations 

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 

(AD) 2022–07–15, Amendment 39– 

22003 (87 FR 22438, April 15, 2022); 

and 

■ b. Adding the following new AD: 

2023–25–05 Airbus SAS: Amendment 39– 

22632; Docket No. FAA–2023–1882; 

Project Identifier MCAI–2023–00651–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective February 7, 2024. 

(b) Affected ADs 

This AD replaces AD 2022–07–15, 

Amendment 39–22003 (87 FR 22438, April 

15, 2022) (AD 2022–07–15). 

(c) Applicability 

This AD applies to the Airbus SAS 

airplanes, certificated in any category, 

identified in paragraphs (c)(1) through (3) of 

this AD. 

(1) All Model A319–151N, A319–153N, 

and A319–171N airplanes. 

(2) All Model A320–251N, A320–252N, 

A320–253N, A320–271N, A320–272N, and 

A320–273N airplanes. 

(3) All Model A321–251N, A321–251NX, 

A321–252N, A321–252NX, A321–253N, 

A321–253NX, A321–271N, A321–271NX, 

A321–272N, and A321–272NX airplanes. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 32, Landing Gear; and 

America Code 92, Electrical System 

Installation. 

(e) Unsafe Condition 

This AD was prompted by the detection of 

several channel failures on the braking and 

steering control unit (BSCU), inducing, in 

case of dual channel failures, loss of anti-skid 

function together with the reversion to the 

alternate braking mode, and loss of nose 

wheel steering. This AD was further 

prompted by the determination that a type 1 

relay combined with an affected BSCU could 

induce BSCU freezing. The FAA is issuing 

this AD to address these conditions, which 

could lead to loss of braking performance 

with significant increase in airplane stopping 

distance, possibly resulting in a runway 

excursion. 

(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, European Union Aviation 

Safety Agency (EASA) AD 2023–0093R1, 

dated May 15, 2023 (EASA AD 2023– 

0093R1). 

(h) Exceptions to EASA AD 2023–0093R1 

(1) Where EASA AD 2023–0093R1 refers to 

‘‘10 March 2022 [the effective date of EASA 

AD 2022–0032 at original issue],’’ this AD 

requires using May 2, 2022 (the effective date 

of AD 2022–07–15). 

(2) Where EASA AD 2023–0093R1 refers to 

its effective date, this AD requires using the 

effective date of this AD. 

(3) Where EASA AD 2023–0093R1 defines 

‘‘the AOT 1’’ as ‘‘Airbus Alert Operators 

Transmission (AOT 1) A32N025–22,’’ this 

AD requires using Airbus Alert Operators 

Transmission A32N025–22, Rev 00, dated 

February 24, 2022, including Appendixes 1 

through 4, dated February 21, 2022, or Airbus 

Alert Operators Transmission A32N025–22, 

Rev 01, dated May 10, 2023, including 

Appendixes 1 through 3, dated May 2023. 

(4) Where paragraphs (2) and (3) of EASA 

AD 2023–0093R1 specify ‘‘in accordance 

with the instructions of the AOT 1,’’ replace 

those words with ‘‘in accordance with the 

‘Remove and replace BSCU P/N E21327307’ 

step in paragraph 5.6., ‘Instructions,’ of 

Airbus Alert Operators Transmission 

A32N025–22, Rev 00, dated February 24, 

2022, including Appendixes 1 through 4, 

dated February 21, 2022, or of Airbus Alert 

Operators Transmission A32N025–22, Rev 

01, dated May 10, 2023, including 

Appendixes 1 through 3, dated May 2023.’’ 

No other actions in Airbus Alert Operators 

Transmission A32N030–23, Rev 00, dated 

February 27, 2023, including Appendixes 1 

and 2, dated February 21, 2023 (referenced in 

EASA AD 2023–0093R1 and not incorporated 

by reference in this AD), or Airbus Alert 

Operators Transmission A32N025–22, Rev 

01, dated May 10, 2023, including 

Appendixes 1 through 3, dated May 2023, are 

required for compliance for the replacement. 

(5) Where paragraph (4) of EASA AD 2023– 

0093R1 requires operators to ‘‘implement the 

instructions of the MMEL [master minimum 

equipment list] update,’’ this AD requires 

replacing those words with ‘‘implement the 

operator’s existing FAA-approved minimum 

equipment list (MEL) with the provisions 

specified in ‘The MMEL update’ as identified 

in EASA AD 2023–0093R1.’’ 

(6) Where paragraph (4) of EASA AD 2023– 

0093R1 specifies to ‘‘inform all flight crews, 

and, thereafter, operate the airplane 

accordingly,’’ this AD does not require those 

actions as those actions are already required 

by existing FAA operating regulations. 

(7) This AD does not adopt the ‘‘Remarks’’ 

section of EASA AD 2023–0093R1. 

(i) No Reporting Requirement 

Although certain service information 

specified in EASA AD 2023–0093R1 specifies 

to report certain information and send 

affected parts to the manufacturer, this AD 

does not require those actions. 

(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 


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Federal Register / Vol. 89, No. 2 / Wednesday, January 3, 2024 / Rules and Regulations 261 

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 International Validation Branch, send 

it to the attention of the person identified in 

paragraph (k) of this AD. Information may be 

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

(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 2022– 

07–15 are approved as AMOCs for the 

corresponding provisions of EASA AD 2023– 

0093R1 that are required by 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, International Validation 

Branch, FAA; or EASA; or Airbus SAS’s 

EASA Design Organization Approval (DOA). 

If approved by the DOA, the approval must 

include the DOA-authorized signature. 

(3) Required for Compliance (RC): Except 

as required by paragraph (j)(2) of this AD, if 

any service information contains paragraphs 

that are labeled as RC, the instructions in RC 

paragraphs, including subparagraphs under 

an RC paragraph, must be done to comply 

with this AD; any paragraphs, including 

subparagraphs under those paragraphs, that 

are not identified as RC are recommended. 

The instructions in paragraphs, including 

subparagraphs under those paragraphs, 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. 

(k) Additional Information 

For more information about this AD, 

contact Timothy Dowling, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; telephone 206– 

231–3667; email Timothy.P.Dowling@faa.gov. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) 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. 

(3) The following service information was 

approved for IBR on February 7, 2024. 

(i) Airbus Alert Operators Transmission 

A32N025–22, Rev 01, dated May 10, 2023, 

including Appendixes 1 through 3, dated 

May 2023. 

(ii) European Union Aviation Safety 

Agency (EASA) AD 2023–0093R1, dated May 

15, 2023. 

(4) The following service information was 

approved for IBR on May 2, 2022 (87 FR 

22438, April 15, 2022). 

(i) Airbus Alert Operators Transmission 

A32N025–22, Rev 00, dated February 24, 

2022, including Appendixes 1 through 4, 

dated February 21, 2022. 

(ii) [Reserved] 

(5) For EASA AD 2023–0093R1, contact 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 8999 

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

easa.europa.eu. You may find this EASA AD 

on the EASA website at ad.easa.europa.eu. 

(6) For Airbus service information 

identified in this AD, contact Airbus SAS, 

Airworthiness Office—EIAS, Rond-Point 

Emile Dewoitine No: 2, 31700 Blagnac Cedex, 

France; telephone +33 5 61 93 36 96; fax +33 

5 61 93 44 51; email account.airworth-eas@

airbus.com; website airbus.com. 

(7) 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. 

(8) 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. 2023–28851 Filed 1–2–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 95 

[Docket No. 31525; Amdt. No. 576] 

IFR Altitudes; Miscellaneous 

Amendments 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: This amendment adopts 

miscellaneous amendments to the 

required IFR (instrument flight rules) 

altitudes and changeover points for 

certain Federal airways, jet routes, or 

direct routes for which a minimum or 

maximum en route authorized IFR 

altitude is prescribed. This regulatory 

action is needed because of changes 

occurring in the National Airspace 

System. These changes are designed to 

provide for the safe and efficient use of 

the navigable airspace under instrument 

conditions in the affected areas. 

DATES: Effective 0901 UTC, January 25, 

2024. 

FOR FURTHER INFORMATION CONTACT: 

Thomas J. Nichols, Flight Procedures 

and Airspace Group, Flight 

Technologies and Procedures Division, 

Flight Standards Service, Federal 

Aviation Administration. Mailing 

Address: FAA Mike Monroney 

Aeronautical Center, Flight Procedures 

and Airspace Group, 6500 South 

MacArthur Blvd., STB Annex, Bldg 26, 

Room 217, Oklahoma City, OK 73099. 

Telephone: (405) 954–1139. 

SUPPLEMENTARY INFORMATION: This 

amendment to part 95 of the Federal 

Aviation Regulations (14 CFR part 95) 

amends, suspends, or revokes IFR 

altitudes governing the operation of all 

aircraft in flight over a specified route 

or any portion of that route, as well as 

the changeover points (COPs) for 

Federal airways, jet routes, or direct 

routes as prescribed in part 95. 

The Rule 

The specified IFR altitudes, when 

used in conjunction with the prescribed 

changeover points for those routes, 

ensure navigation aid coverage that is 

adequate for safe flight operations and 

free of frequency interference. The 

reasons and circumstances that create 

the need for this amendment involve 

matters of flight safety and operational 

efficiency in the National Airspace 

System, are related to published 

aeronautical charts that are essential to 

the user, and provide for the safe and 

efficient use of the navigable airspace. 

In addition, those various reasons or 

circumstances require making this 

amendment effective before the next 

scheduled charting and publication date 

of the flight information to assure its 

timely availability to the user. The 

effective date of this amendment reflects 

those considerations. In view of the 

close and immediate relationship 

between these regulatory changes and 

safety in air commerce, I find that notice 

and public procedure before adopting 

this amendment are impracticable and 

contrary to the public interest and that 

good cause exists for making the 

amendment effective in less than 30 

days. 

Conclusion 

The FAA has determined that this 

regulation only involves an established 

body of technical regulations for which 

frequent and routine amendments are 

necessary to keep them operationally 

current. It, therefore—(1) is not a 

‘‘significant regulatory action’’ under 

Executive Order 12866; (2) is not a 

‘‘significant rule’’ under DOT 

Regulatory Policies and Procedures (44 

FR 11034; February 26, 1979); and (3) 

does not warrant preparation of a 


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