This section of the FEDERAL REGISTER

contains notices to the public of the proposed

issuance of rules and regulations. The

purpose of these notices is to give interested

persons an opportunity to participate in the

rule making prior to the adoption of the final

rules.

Proposed Rules Federal Register

9795 

Vol. 89, No. 29 

Monday, February 12, 2024 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–0223; Project 

Identifier MCAI–2023–00996–T] 

RIN 2120–AA64 

Airworthiness Directives; Airbus SAS 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for all 

Airbus SAS Model A330–200, A330– 

200 Freighter, A330–800, and A330–900 

series airplanes; Model A330–301, –302, 

–303, –323, –342, and –343 airplanes;

and Model A340–312 and –313

airplanes. This proposed AD was

prompted by reports of quality nonconformity on main landing gear (MLG)

axles where the high velocity oxygenfuel (HVOF) coating on the bearing

journal runout areas had a coating that

was thicker than allowable limits. This

proposed AD would require repetitive

inspections of the affected parts (MLG

axles) for any discrepancy, corrective

actions, and eventual replacement of

affected parts, and would prohibit the

installation of affected parts, as

specified in a European Union Aviation

Safety Agency (EASA) AD, which is

proposed for incorporation by reference

(IBR). The FAA is proposing this AD to

address the unsafe condition on these

products.

DATES: The FAA must receive comments 

on this proposed AD by March 28, 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–2024–0223; or in person at 

Docket Operations between 9 a.m. and 

5 p.m., Monday through Friday, except 

Federal holidays. The AD docket 

contains this NPRM, the mandatory 

continuing airworthiness information 

(MCAI), any comments received, and 

other information. The street address for 

Docket Operations is listed above. 

Material Incorporated by Reference: 

• For material that is proposed for

IBR in this AD, contact EASA, KonradAdenauer-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. It is also available at 

regulations.gov under Docket No. FAA– 

2024–0223. 

• 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. 

FOR FURTHER INFORMATION CONTACT: 

Vladimir Ulyanov, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; 

telephone 206–231–3229; email 

vladimir.ulyanov@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

The FAA invites you to send any 

written relevant data, views, or 

arguments about this proposal. Send 

your comments to an address listed 

under ADDRESSES. Include ‘‘Docket No. 

FAA–2024–0223; Project Identifier 

MCAI–2023–00996–T’’ at the beginning 

of your comments. The most helpful 

comments reference a specific portion of 

the proposal, explain the reason for any 

recommended change, and include 

supporting data. The FAA will consider 

all comments received by the closing 

date and may amend this proposal 

because of those comments. 

Except for Confidential Business 

Information (CBI) as described in the 

following paragraph, and other 

information as described in 14 CFR 

11.35, the FAA will post all comments 

received, without change, to 

regulations.gov, including any personal 

information you provide. The agency 

will also post a report summarizing each 

substantive verbal contact received 

about this NPRM. 

Confidential Business Information 

CBI is commercial or financial 

information that is both customarily and 

actually treated as private by its owner. 

Under the Freedom of Information Act 

(FOIA) (5 U.S.C. 552), CBI is exempt 

from public disclosure. If your 

comments responsive to this NPRM 

contain commercial or financial 

information that is customarily treated 

as private, that you actually treat as 

private, and that is relevant or 

responsive to this NPRM, it is important 

that you clearly designate the submitted 

comments as CBI. Please mark each 

page of your submission containing CBI 

as ‘‘PROPIN.’’ The FAA will treat such 

marked submissions as confidential 

under the FOIA, and they will not be 

placed in the public docket of this 

NPRM. Submissions containing CBI 

should be sent to Vladimir Ulyanov, 

Aviation Safety Engineer, FAA, 1600 

Stewart Avenue, Suite 410, Westbury, 

NY 11590; telephone 206–231–3229; 

email vladimir.ulyanov@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 

EASA, which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA AD 2023–0167, 

dated August 30, 2023 (EASA AD 2023– 

0167) (also referred to as the MCAI), to 

correct an unsafe condition for all 

Airbus SAS Model A330–200, A330– 

200 Freighter, A330–800, and A330–900 

series airplanes; Model A330–301, –302, 

–303, –323, –342, –343, and –743L

airplanes; and Model A340–312 and

–313 airplanes. Model A330–743L

airplanes are not certificated by the FAA

and are not included on the U.S. type

certificate data sheet; this proposed AD

therefore does not include those

airplanes in the applicability. The MCAI

states there are reports of quality nonVerDate Sep<11>2014 21:01 Feb 09, 2024 Jkt 262001 PO 00000 Frm 00001 Fmt 4702 Sfmt 4702 E:\FR\FM\12FEP1.SGM 12FEP1

khammond on DSKJM1Z7X2PROD with PROPOSALS
9796 Federal Register / Vol. 89, No. 29 / Monday, February 12, 2024 / Proposed Rules 

conformity on MLG axles where the 

HVOF coating on the bearing journal 

runout areas had a coating thicker than 

allowable limits. This over-thickness 

could lead to damage, cracking, or 

spalling of the protective coating, which 

could expose the base material and 

allow corrosion to develop. This 

condition, if not detected and corrected, 

could lead to a MLG axle failure, 

possibly resulting in a MLG collapse, 

with consequent damage to the airplane 

and injury to occupants. 

The FAA is proposing 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–2024–0223. 

Related Service Information Under 1 

CFR Part 51 

EASA AD 2023–0167 specifies, for 

certain airplanes, procedures for 

repetitive inspections of the affected 

parts (MLG axles) for any discrepancy 

(damage, cracking, or spalling of HVOF 

coating, or corrosion), doing corrective 

actions including obtaining and 

following repair instructions and 

replacement of affected parts. EASA AD 

2023–0167 also prohibits the 

installation of affected parts, and 

installation of MLG having an affected 

part installed. 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. 

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 NPRM after determining 

that the unsafe condition described 

previously is likely to exist or develop 

in other products of the same type 

design. 

Proposed AD Requirements in This 

NPRM 

This proposed AD would require 

accomplishing the actions specified in 

EASA AD 2023–0167 described 

previously, except for any differences 

identified as exceptions in the 

regulatory text of this proposed AD. 

Explanation of Required Compliance 

Information 

In the FAA’s ongoing efforts to 

improve the efficiency of the AD 

process, the FAA developed a process to 

use some civil aviation authority (CAA) 

ADs as the primary source of 

information for compliance with 

requirements for corresponding FAA 

ADs. The FAA has been coordinating 

this process with manufacturers and 

CAAs. As a result, the FAA proposes to 

incorporate EASA AD 2023–0167 by 

reference in the FAA final rule. This 

proposed AD would, therefore, require 

compliance with EASA AD 2023–0167 

in its entirety through that 

incorporation, except for any differences 

identified as exceptions in the 

regulatory text of this proposed AD. 

Using common terms that are the same 

as the heading of a particular section in 

EASA AD 2023–0167 does not mean 

that operators need comply only with 

that section. For example, where the AD 

requirement refers to ‘‘all required 

actions and compliance times,’’ 

compliance with this AD requirement is 

not limited to the section titled 

‘‘Required Action(s) and Compliance 

Time(s)’’ in EASA AD 2023–0167. 

Service information required by EASA 

AD 2023–0167 for compliance will be 

available at regulations.gov under 

Docket No. FAA–2024–0223 after the 

FAA final rule is published. 

Costs of Compliance 

The FAA estimates that this AD, if 

adopted as proposed, would affect 7 

airplanes of U.S. registry. The FAA 

estimates the following costs to comply 

with this proposed AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

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

operators 

Part and serial number inspection.0.5 work-hours × $85 per 

hour = $42.50 per airplane.

$0 $42.50 .................................... $298. 

Inspection of affected axle ..... Up to 16 work-hours × $85 

per hour = $1,360 per axle, 

per inspection cycle.

0 Up to $1,360 per axle, per inspection cycle.Up to $9,520 per axle, per inspection cycle. 

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

Action Labor cost Parts cost Cost per product 

Repair ...................................................... Up to 16 work-hours × $85 per hour = 

$1,360.

$0 $1,360. 

Axle replacement ..................................... Up to 88 work-hours × $85 per hour = 

$7,480.

47,126 $54,606. 

Optional replacement of MLG ................. Up to 48 work-hours × $85 per hour = 

$4,080.

(*) Up to $4,080. 

* The FAA has received no definitive data on which to base the cost estimates for a replacement MLG. The parts cost must be obtained 

through SAFRAN. 


khammond on DSKJM1Z7X2PROD with PROPOSALS
Federal Register / Vol. 89, No. 29 / Monday, February 12, 2024 / Proposed Rules 9797 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. Subtitle VII: 

Aviation Programs, describes in more 

detail the scope of the Agency’s 

authority. 

The FAA is issuing this rulemaking 

under the authority described in 

Subtitle VII, Part A, Subpart III, Section 

44701: General requirements. Under 

that section, Congress charges the FAA 

with promoting safe flight of civil 

aircraft in air commerce by prescribing 

regulations for practices, methods, and 

procedures the Administrator finds 

necessary for safety in air commerce. 

This regulation is within the scope of 

that authority because it addresses an 

unsafe condition that is likely to exist or 

develop on products identified in this 

rulemaking action. 

Regulatory Findings 

The FAA determined that this 

proposed AD would not have federalism 

implications under Executive Order 

13132. This proposed AD would not 

have a substantial direct effect on the 

States, on the relationship between the 

national Government and the States, or 

on the distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify this proposed regulation: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Would not affect intrastate 

aviation in Alaska, and 

(3) Would not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 14 CFR part 

39 as follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 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: 

Airbus SAS: Docket No. FAA–2024–0223; 

Project Identifier MCAI–2023–00996–T. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by March 28, 

2024. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all Airbus airplanes 

identified in paragraphs (c)(1) through (4) of 

this AD, certificated in any category. 

(1) Model A330–201, –202, –203, –223, and 

–243 airplanes. 

(2) Model A330–223F, and –243F 

airplanes. 

(3) Model A330–301, –302, –303, –323, 

–342, –343, –841, and –941 airplanes. 

(4) Model A340–312 and –313 airplanes. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 32, Landing Gear. 

(e) Unsafe Condition 

This AD was prompted by reports of 

quality non-conformity on main landing gear 

(MLG) axles where the high velocity oxygenfuel (HVOF) coating on the bearing journal 

runout areas had excessive coating compared 

to the drawing limits. The FAA is issuing this 

AD to address damage, cracking, or spalling 

of the protective HVOF coating and exposure 

of the base material, which could allow 

corrosion to develop. The unsafe condition, 

if not addressed, could result in a MLG axle 

failure, possibly resulting in a MLG collapse, 

with consequent damage to the airplane and 

injury to occupants. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Requirements 

Except as specified in paragraphs (h) and 

(i) 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– 

0167, dated August 30. 2023 (EASA AD 

2023–0167). 

(h) Exceptions to EASA AD 2023–0167 

(1) Where EASA AD 2023–0167 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

(2) Where paragraph (1) of EASA AD 2023– 

0167 specifies to inspect within 24 months 

after the part entry into service, this AD 

requires inspecting within 30 months after 

the part entry into service or 30 days after the 

effective date of this AD, whichever occurs 

later. 

(3) Paragraph (3) of EASA AD 2023–0167 

specifies ‘‘If, during any inspection as 

required by paragraph (1) of this AD, any 

discrepancy, as defined in the SB, is 

detected, before next flight, contact SAFRAN 

Landing Systems for approved corrective 

action instructions and, within the 

compliance time specified therein, 

accomplish those instructions accordingly. If 

no compliance time is identified in those 

instructions, accomplish the applicable 

corrective action(s) before next flight.’’ This 

AD, however, requires replacing those words 

with ‘‘If, during any inspection as required 

by paragraph (1) of this AD, any discrepancy, 

as defined in the SB, is detected, the 

discrepancy must be repaired before further 

flight using a method approved by the 

Manager, International Validation Branch, 

FAA; or EASA; Airbus SAS’s EASA Design 

Organization Approval (DOA); or SAFRAN 

Landing Systems’ DOA. If approved by the 

DOA, the approval must include the DOAauthorized signature.’’ 

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

section of EASA AD 2023–0167. 

(i) No Reporting Requirement 

Although the service information 

referenced in EASA AD 2023–0167 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 EASA; Airbus SAS’s EASA 

Design Organization Approval (DOA); or 

SAFRAN Landing System’s EASA DOA. If 

approved by the DOA, the approval must 

include the DOA-authorized signature. 

(3) Required for Compliance (RC): Except 

as required by paragraphs (i) and (j)(2) of this 

AD, if any service information contains 

procedures or tests that are identified as RC, 

those procedures and tests must be done to 

comply with this AD; any procedures or tests 

that are not identified as RC are 

recommended. Those procedures and tests 

that are 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 

procedures and tests identified as RC can be 

done and the airplane can be put back in an 

airworthy condition. Any substitutions or 


khammond on DSKJM1Z7X2PROD with PROPOSALS
9798 Federal Register / Vol. 89, No. 29 / Monday, February 12, 2024 / Proposed Rules 

changes to procedures or tests identified as 

RC require approval of an AMOC. 

(k) Additional Information 

For more information about this AD, 

contact Vladimir Ulyanov, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; telephone 206– 

231–3229; email vladimir.ulyanov@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. 

(i) European Union Aviation Safety Agency 

(EASA) AD 2023–0167, dated August 30, 

2023. 

(ii) [Reserved] 

(3) For EASA AD 2023–0167, 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. 

(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 February 1, 2024. 

Victor Wicklund, 

Deputy Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2024–02443 Filed 2–9–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–0225; Project 

Identifier MCAI–2023–00725–T] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Canada Limited Partnership (Type 

Certificate Previously Held by C Series 

Aircraft Limited Partnership (CSALP); 

Bombardier, Inc.) Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for all 

Airbus Canada Limited Partnership 

Model BD–500–1A10 and BD–500– 

1A11 airplanes. This proposed AD was 

prompted by a design review of aircraft 

structural and stress reports that 

resulted in a revision of operational 

loads for some aircraft flight phases. 

This proposed AD would require using 

a certain version of the aircraft 

structural repair manual (ASRP) and a 

review and disposition of repairs based 

on previous versions, as specified in a 

Transport Canada AD, which is 

proposed for incorporation by reference 

(IBR). The FAA is proposing this AD to 

address the unsafe condition on these 

products. 

DATES: The FAA must receive comments 

on this proposed AD by March 28, 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–2024–0225; or in person at 

Docket Operations between 9 a.m. and 

5 p.m., Monday through Friday, except 

Federal holidays. The AD docket 

contains this NPRM, the mandatory 

continuing airworthiness information 

(MCAI), any comments received, and 

other information. The street address for 

Docket Operations is listed above. 

Material Incorporated by Reference: 

• For material that is proposed for 

IBR in this AD, contact Transport 

Canada, Transport Canada National 

Aircraft Certification, 159 Cleopatra 

Drive, Nepean, Ontario K1A 0N5, 

Canada; telephone 888–663–3639; email 

TC.AirworthinessDirectivesConsignesdenavigabilite.TC@tc.gc.ca. 

You may find this material on the 

Transport Canada website at 

tc.canada.ca/en/aviation. It is also 

available at regulations.gov under 

Docket No. FAA–2024–0225. 

• 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. 

FOR FURTHER INFORMATION CONTACT: 

Yaser Osman, Aviation Safety Engineer, 

FAA, 1600 Stewart Avenue, Suite 410, 

Westbury, NY 11590; telephone 516– 

228–7300; email 9-avs-nyaco-cos@

faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

The FAA invites you to send any 

written relevant data, views, or 

arguments about this proposal. Send 

your comments to an address listed 

under ADDRESSES. Include ‘‘Docket No. 

FAA–2024–0225; Project Identifier 

MCAI–2023–00725–T’’ at the beginning 

of your comments. The most helpful 

comments reference a specific portion of 

the proposal, explain the reason for any 

recommended change, and include 

supporting data. The FAA will consider 

all comments received by the closing 

date and may amend this proposal 

because of those comments. 

Except for Confidential Business 

Information (CBI) as described in the 

following paragraph, and other 

information as described in 14 CFR 

11.35, the FAA will post all comments 

received, without change, to 

regulations.gov, including any personal 

information you provide. The agency 

will also post a report summarizing each 

substantive verbal contact received 

about this NPRM. 

Confidential Business Information 

CBI is commercial or financial 

information that is both customarily and 

actually treated as private by its owner. 

Under the Freedom of Information Act 

(FOIA) (5 U.S.C. 552), CBI is exempt 

from public disclosure. If your 

comments responsive to this NPRM 

contain commercial or financial 

information that is customarily treated 

as private, that you actually treat as 

private, and that is relevant or 

responsive to this NPRM, it is important 

that you clearly designate the submitted 

comments as CBI. Please mark each 

page of your submission containing CBI 

as ‘‘PROPIN.’’ The FAA will treat such 

marked submissions as confidential 

under the FOIA, and they will not be 

placed in the public docket of this 

NPRM. Submissions containing CBI 

should be sent to Yaser Osman, 

Aviation Safety Engineer, FAA, 1600 

Stewart Avenue, Suite 410, Westbury, 

NY 11590; telephone 516–228–7300; 

email 9-avs-nyaco-cos@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 

Transport Canada, which is the 

aviation authority for Canada, has 

issued Transport Canada AD CF–2023– 


khammond on DSKJM1Z7X2PROD with PROPOSALS