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

93528 

Vol. 89, No. 229 

Wednesday, November 27, 2024 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–2543; Project 

Identifier MCAI–2024–00342–T] 

RIN 2120–AA64 

Airworthiness Directives; 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 

Bombardier, Inc., Model BD–700–2A12 

airplanes. This proposed AD was 

prompted by the discovery that a partial 

loss of thrust after an engine failure 

during a required navigation 

performance authorization required 

(RNP–AR) approach under certain 

weight, altitude and temperature (WAT) 

conditions, may lead to a descent below 

the specified path guidance. This 

proposed AD would require a revision 

to the existing airplane flight manual 

(AFM), to incorporate updated WAT 

tables for RNP–AR approach operations. 

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 January 13, 

2025. 

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–2024–2543; 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 Bombardier material identified 

in this proposed 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. 

FOR FURTHER INFORMATION CONTACT: 

Joseph Catanzaro, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; phone: 

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 the ADDRESSES section. Include 

‘‘Docket No. FAA–2024–2543; Project 

Identifier MCAI–2024–00342–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 the 

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 Joseph Catanzaro, 

Aviation Safety Engineer, FAA, 1600 

Stewart Avenue, Suite 410, Westbury, 

NY 11590; phone: 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–2024– 

22, dated June 13, 2024 (Transport 

Canada AD CF–2024–22) (also referred 

to after this as the MCAI), to correct an 

unsafe condition on all Bombardier, 

Inc., Model BD–700–2A12 airplanes. 

The MCAI states that it was discovered 

that a partial loss of thrust after an 

engine failure during an RNP–AR 

approach under certain WAT 

conditions, may lead to a descent below 

75 foot of the path guidance, requiring 

a go-around. The resultant vertical 

deviation may exceed allowable 

approach containment for obstacle 

clearance and may largely reduce the 

safety margins in the missed approach. 

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. FAAll. 


ddrumheller on DSK120RN23PROD with PROPOSALS1
Federal Register / Vol. 89, No. 229 / Wednesday, November 27, 2024 / Proposed Rules 93529 

Material Incorporated by Reference 

Under 1 CFR Part 51 

The FAA reviewed (Bombardier) 

Global 7500 Airplane Flight Manual 

Temporary Revision TR–58, dated 

March 21, 2024. This material specifies 

procedures to update WAT tables for 

RNP–AR approach operations to contain 

possible vertical deviations within the 

75 foot requirement. 

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. 

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 and material referenced 

above. The FAA is issuing this NPRM 

after determining that the unsafe 

condition described previously is likely 

to exist or develop on other products of 

the same type design. 

Proposed AD Requirements in This 

NPRM 

This proposed AD would require a 

revision to the existing AFM to 

incorporate updated WAT tables for 

RNP–AR approach operations that 

contain possible vertical deviations 

within the 75 foot requirement. 

Compliance With AFM Revisions 

Transport Canada AD CF–2024–22 

requires operators to ‘‘advise all flight 

crews’’ of revisions to the AFM, and 

thereafter to ‘‘operate the aeroplane 

accordingly.’’ However, this proposed 

AD would not specifically require those 

actions as those actions are already 

required by FAA regulations. 

FAA regulations require operators 

furnish to pilots any changes to the 

AFM (for example, 14 CFR 121.137), 

and to ensure the pilots are familiar 

with the AFM (for example, 14 CFR 

91.505). As with any other flightcrew 

training requirement, training on the 

updated AFM content is tracked by the 

operators and recorded in each pilot’s 

training record, which is available for 

the FAA to review. FAA regulations also 

require pilots to follow the procedures 

in the existing AFM including all 

updates. 14 CFR 91.9 requires that any 

person operating a civil aircraft must 

comply with the operating limitations 

specified in the AFM. Therefore, 

including a requirement in this 

proposed AD to operate the airplane 

according to the revised AFM would be 

redundant and unnecessary. 

Costs of Compliance 

The FAA estimates that this AD, if 

adopted as proposed, would affect 70 

airplanes of U.S. registry. The FAA 

estimates the following costs to comply 

with this proposed AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

1 work-hour × $85 per hour = $85 .............................................................................................. $0 $85 $5,950 

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: 

Bombardier, Inc.: Docket No. FAA–2024– 

2543; Project Identifier MCAI–2024– 

00342–T. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by January 13, 

2025. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all Bombardier, Inc., 

Model BD–700–2A12 airplanes. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 34, Navigation. 

(e) Unsafe Condition 

This AD was prompted by the discovery 

that a partial loss of thrust after an engine 

failure during a required navigation 

performance authorization required (RNP– 

AR) approach under certain weight, altitude, 

and temperature (WAT) conditions, may lead 

to a descent below 75 feet of the path 

guidance, requiring a go-around. The 

resultant vertical deviation may exceed 

allowable approach containment for obstacle 

clearance and may reduce the safety margins 

in the missed approach. 


ddrumheller on DSK120RN23PROD with PROPOSALS1
93530 Federal Register / Vol. 89, No. 229 / Wednesday, November 27, 2024 / Proposed Rules 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Revision of Existing Airplane Flight 

Manual (AFM) 

Within 30 days after the effective date of 

this AD, revise the existing AFM to include 

the information specified in (Bombardier) 

Global 7500 Airplane Flight Manual 

Temporary Revision TR–58, dated March 21, 

2024. 

(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 of the International Validation 

Branch, send it to the attention of the person 

identified in paragraph (i) of this AD and 

email to: 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 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 

For more information about this AD, 

contact Joseph Catanzaro, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; phone: 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 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) (Bombardier) Global 7500 Airplane 

Flight Manual Temporary Revision TR–58, 

dated March 21, 2024. 

(ii) Reserved 

(3) For 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. 

(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 November 21, 2024. 

Victor Wicklund, 

Deputy Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2024–27784 Filed 11–26–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2024–2530; Airspace 

Docket No. 24–ASO–33] 

RIN 2120–AA66 

Amendment of Class E Airspace; 

Ahoskie, NC 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: This action proposes to 

amend Class E airspace extending 

upward from 700 feet above the surface 

for Ahoskie, NC, by adding airspace for 

ECU Health Roanoke Chowan Heliport, 

Ahoskie, NC. This action also proposes 

to amend the airport information for TriCounty at Henry Joyner Field Airport by 

updating the airport name and 

coordinates. Additionally, this action 

would bring the Ahoskie Class E 

airspace into compliance with FAA 

orders. Controlled airspace is necessary 

for the safety and management of 

instrument flight rules (IFR) operations 

at this airport. 

DATES: Comments must be received on 

or before January 13, 2025. 

ADDRESSES: Send comments identified 

by FAA Docket No. FAA–2024–2530 

and Airspace Docket No. 24–ASO–33 

using any of the following methods: 

* Federal eRulemaking Portal: Go to 

www.regulations.gov and follow the 

online instructions for sending your 

comments electronically. 

* Mail: Docket Operations, M–30; U.S. 

Department of Transportation, 1200 

New Jersey Avenue SE, Room W12–140, 

West Building Ground Floor, 

Washington, DC 20590–0001. 

* Hand Delivery or Courier: Take 

comments to Docket Operations in 

Room W12–140 of the West Building 

Ground Floor at 1200 New Jersey 

Avenue SE, Washington, DC, between 9 

a.m. and 5 p.m., Monday through 

Friday, except for Federal holidays. 

* Fax: Fax comments to Docket 

Operations at (202) 493–2251. 

Docket: Background documents or 

comments received may be read at 

www.regulations.gov at any time. 

Follow the online instructions for 

accessing the docket or go to the Docket 

Operations in Room W12–140 of the 

West Building Ground Floor at 1200 

New Jersey Avenue SE, Washington, 

DC, between 9 a.m. and 5 p.m., Monday 

through Friday, except for Federal 

holidays. 

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, Office of 

Policy, Federal Aviation 

Administration, 800 Independence 

Avenue SW, Washington, DC 20591; 

telephone: (202) 267–8783. 

FOR FURTHER INFORMATION CONTACT: 

Marc Ellerbee, Operations Support 

Group, Eastern Service Center, Federal 

Aviation Administration, 1701 

Columbia Avenue, College Park, GA 

30337; Telephone: (404) 305–5589. 

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 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 would 

amend Class E airspace in Ahoskie, NC. 

Comments Invited 

The FAA invites interested persons to 

participate in this rulemaking by 

submitting written comments, data, or 

views. Comments are specifically 

invited on the overall regulatory, 

aeronautical, economic, environmental, 

and energy-related aspects of the 

proposal. The most helpful comments 

reference a specific portion of the 

proposal, explain the reason for any 

recommended change, and include 

supporting data. To ensure the docket 

does not contain duplicate comments, 

commenters should submit only one 

time if comments are filed 

electronically, or commenters should 


ddrumheller on DSK120RN23PROD with PROPOSALS1