7998 Federal Register / Vol. 90, No. 14 / Thursday, January 23, 2025 / Proposed Rules 

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–2025–0009; 

Project Identifier MCAI–2024–00317–T. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by March 10, 

2025. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Airbus SAS Model 

A319–111, –112, –113, –114, –115, –131, 

–132, and –133 airplanes, certificated in any 

category, as identified in European Union 

Aviation Safety Agency (EASA) AD 2024– 

0105, dated May 30, 2024 (EASA AD 2024– 

0105). 

(d) Subject 

Air Transport Association (ATA) of 

America Code 53, Fuselage. 

(e) Unsafe Condition 

This AD was prompted by a widespread 

fatigue damage (WFD) scenario review for a 

certification project that indicated several 

cracks found around the potable water and 

wastewater service panels are WFD instead of 

typical fatigue. The FAA is issuing this AD 

to address cracks around the potable water 

and wastewater service panels. The unsafe 

condition, if not addressed, could affect 

structural integrity of the fuselage. 

(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, EASA AD 2024–0105. 

(h) Exception to EASA AD 2024–0105 

This AD does not adopt the ‘‘Remarks’’ 

section of EASA AD 2024–0105. 

(i) Additional AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): 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 responsible Flight Standards Office, as 

appropriate. If sending information directly 

to the manager of the Continued Operational 

Safety Branch, send it to the attention of the 

person identified in paragraph (j) 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, AIR–520, Continued 

Operational Safety Branch, FAA; or EASA; or 

Airbus SAS’s EASA Design Organization 

Approval (DOA). If approved by the DOA, 

the approval must include the DOAauthorized signature. 

(3) Required for Compliance (RC): Except 

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

any material 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 

changes to procedures or tests identified as 

RC require approval of an AMOC. 

(j) Additional Information 

For more information about this AD, 

contact Timothy Dowling, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; phone: 206–231– 

3667; email: Timothy.P.Dowling@faa.gov. 

(k) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

the material listed in this paragraph under 5 

U.S.C. 552(a) and 1 CFR part 51. 

(2) You must use this material as 

applicable to do the actions required by this 

AD, unless this AD specifies otherwise. 

(i) European Union Aviation Safety Agency 

(EASA) AD 2024–0105, dated May 30, 2024. 

(ii) [Reserved] 

(3) For EASA material identified 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. 

(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 January 15, 2025. 

Suzanne Masterson, 

Deputy Director, Integrated Certificate 

Management Division, Aircraft Certification 

Service. 

[FR Doc. 2025–01362 Filed 1–22–25; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–1883; Project 

Identifier AD–2023–01120–E] 

RIN 2120–AA64 

Airworthiness Directives; General 

Electric Company Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Supplemental notice of 

proposed rulemaking (SNPRM). 

SUMMARY: The FAA is revising a notice 

of proposed rulemaking (NPRM) that 

applied to all General Electric Company 

(GE) Model CF34–10E2A1, CF34–10E6, 

CF34–10E6A1, CF34–10E7, and CF34– 

10E7–B engines with certain partnumbered high-pressure turbine (HPT) 

shroud/low pressure turbine (LPT) 

nozzle assemblies installed. This action 

revises the NPRM by adding Model 

CF34–10E5 and CF34–10E5A1 engines 

to the applicability. The FAA is 

proposing this airworthiness directive 

(AD) to address the unsafe condition on 

these products. Since these actions 

would impose an additional burden 

over those in the NPRM the agency is 

requesting comments on this SNPRM. 

DATES: The FAA must receive comments 

on this SNPRM by March 10, 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. 


ddrumheller on DSK120RN23PROD with PROPOSALS1
Federal Register / Vol. 90, No. 14 / Thursday, January 23, 2025 / Proposed Rules 7999 

• 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–2024–1883; 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 SNPRM, any comments 

received, and other information. The 

street address for Docket Operations is 

listed above. 

Material Incorporated by Reference: 

• For GE material identified in this 

proposed AD, contact GE, 1 Neumann 

Way, Cincinnati, OH 45215; phone: 

(513) 552–3272; email: 

aviation.fleetsupport@ge.com; website: 

ge.com. 

• You may view this material at the 

FAA, Airworthiness Products Section, 

Operational Safety Branch, 1200 District 

Avenue, Burlington, MA 01803. For 

information on the availability of this 

material at the FAA, call (817) 222– 

5110. 

FOR FURTHER INFORMATION CONTACT: 

Alexei Marqueen, Aviation Safety 

Engineer, FAA, 2200 South 216th Street, 

Des Moines, WA 98198; phone: (781) 

238–7178; email: alexei.t.marqueen@

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–2024–1883; Project 

Identifier AD–2023–01120–E’’ 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 again revise 

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 SNPRM. 

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 SNPRM 

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 SNPRM, 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 SNPRM. Submissions containing 

CBI should be sent to Alexei Marqueen, 

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 

The FAA issued an NPRM to amend 

14 CFR part 39 by adding an AD that 

would apply to GE Model CF34– 

10E2A1, CF34–10E6, CF34–10E6A1, 

CF34–10E7, and CF34–10E7–B engines 

with an installed HPT shroud/LPT 

nozzle assembly having part number (P/ 

N) 2205M38G01, 2205M38G02, 

2205M38G03, 2205M38G04, or 

2205M38G05. The NPRM published in 

the Federal Register on July 10, 2024 

(89 FR 56674). The NPRM was 

prompted by a report from the 

manufacturer that during disassembly, 

the retention features of the inner and 

outer support air ducts on GE Model 

CF34–10E series engines were found to 

have failed. This condition, if not 

addressed, could result in the inner 

surface of the combustion case having 

reduced load carrying capability for fan 

blade out or other extreme event with 

possible engine separation and loss of 

the airplane. In the NPRM, the FAA 

proposed to require a visual inspection 

of the combustion case for wear and 

gouges, repair if necessary, and rework 

of the affected HPT shroud/LPT nozzle 

assemblies. 

Actions Since the NPRM Was Issued 

Since the FAA issued the NPRM, the 

FAA received comments and 

determined that Model CF34–10E5 and 

CF34–10E5A1 engines were 

inadvertently omitted from the 

applicability of the NPRM. In addition, 

the Cost of Compliance section was 

modified to reflect a more accurate 

estimate of the number of affected 

engines. While the number of affected 

models increased, the number of 

affected engines is lower than 

previously estimated. 

Comments 

The FAA received comments from 

three commenters. The commenters 

were the Air Line Pilots Association, 

International (ALPA), Japan Airlines, 

and GE. ALPA supported the NPRM 

without change. The following presents 

the comments received from Japan 

Airlines and GE and the FAA’s 

response. 

Request To Update the Applicability 

Japan Airlines and GE suggested that 

engine Model CF34–10E5 and CF34– 

10E5A1 be included in the applicability 

of the NPRM because the effectivity of 

GE CF34–10E Service Bulletin (SB) 72– 

0351 R01, dated July 17, 2019 (GE 

CF34–10E SB 72–0351 R01) applies to 

all CF34–10E engines with an installed 

HPT shroud/LPT nozzle assembly 

having part number (P/N) 2205M38G01, 

2205M38G02, 2205M38G03, 

2205M38G04, or 2205M38G05. 

The FAA agrees and has revised 

paragraph (c) of this proposed AD to 

add engine Model CF34–10E5 and 

CF34–10E5A1. 

FAA’s Determination 

The FAA is proposing this AD after 

determining the unsafe condition 

described previously is likely to exist or 

develop in other products of the same 

type design. Certain changes described 

above expand the scope of the NPRM. 

As a result, it is necessary to reopen the 

comment period to provide additional 

opportunity for the public to comment 

on this SNPRM. 

Material Incorporated by Reference 

Under 1 CFR Part 51 

The FAA reviewed GE CF34–10E SB 

72–0351 R01, which provides 

instructions for a visual inspection of 

the combustion case for wear and 

gouges, repair if necessary, and rework 

of the affected HPT shroud/LPT nozzle 

assemblies. This material also 

introduces a new HPT shroud/LPT 

nozzle assembly P/N 2205M38G07 with 

welded retaining rings. This service 

information 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. 

Proposed AD Requirements in This 

SNPRM 

This proposed AD would require a 

visual inspection of the combustion case 

for wear and gouges, repair if necessary, 

and rework of the affected HPT shroud/ 


ddrumheller on DSK120RN23PROD with PROPOSALS1
8000 Federal Register / Vol. 90, No. 14 / Thursday, January 23, 2025 / Proposed Rules 

LPT nozzle assemblies to add a positive 

retention of the support air duct. 

Costs of Compliance 

The FAA estimates that this AD, if 

adopted as proposed, affects 221 

engines installed on airplanes of U.S. 

registry. 

The FAA estimates the following 

costs to comply with this proposed AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Visual inspection of the combustion case 

inner shell surface.

8 work-hours × $85 per hour = $680 ............. $0 $680 $150,280 

Rework of the affected HPT shroud/LPT nozzle assembly.8 work-hours × $85 per hour = $680 ............. 0 680 150,280 

The FAA estimates the following 

costs to do any necessary repairs that 

would be required based on the results 

of the proposed inspection. The agency 

has no way of determining the number 

of engines that might need these repairs. 

ON-CONDITION COSTS

Action Labor cost Parts cost Cost per 

product 

Repair of the combustion case .................................... 8 work-hours × $85 per hour = $680 ........................... $0 $680 

Replacement of the combustion case .......................... 8 work-hours × $85 per hour = $680 ........................... 647,000 647,680 

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: 

General Electric Company: Docket No. FAA– 

2024–1883; Project Identifier AD–2023– 

01120–E. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by March 10, 

2025. 

(b) Affected ADs 

None. 

(c) Applicability 

(1) This AD applies to General Electric 

Company (GE) CF34–10E2A1, CF34–10E5, 

CF34–10E5A1, CF34–10E6, CF34–10E6A1, 

CF34–10E7, and CF34–10E7–B engines with 

an installed high-pressure turbine (HPT) 

shroud/low-pressure turbine (LPT) nozzle 

assembly having part number (P/N) 

2205M38G01, 2205M38G02, 2205M38G03, 

2205M38G04, or 2205M38G05. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 7250, Turbine Section. 

(e) Unsafe Condition 

This AD was prompted by a report of failed 

retention features of the inner and outer 

support air ducts (commonly referred to as 

spoolies) discovered during engine 

disassembly. The FAA is issuing this AD to 

prevent failure of the combustion case. The 

unsafe condition, if not addressed, could 

result in the inner surface of the combustion 

case having reduced load carrying capability 

for fan blade out or other extreme event with 

possible engine separation and loss of the 

airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

(1) At the next engine shop visit after the 

effective date of this AD, do a visual 

inspection of the combustion case inner shell 

surface for wear and gouges in accordance 

with paragraphs 3.A.(1) and (2) of the 

Accomplishment Instructions in GE CF34– 

10E Service Bulletin (SB) 72–0351 R01, dated 

July 17, 2019 (GE CF34–10E SB 72–0351 

R01). 

(i) If any wear or gouges are found during 

any inspection required by paragraph (g)(1) 

of this AD, before further flight, repair the 

combustion case in accordance with Table 1 

of GE CF34–10E SB 72–0351 R01. 

(ii) If any wear or gouges exceed the 

maximum repairable limit in accordance 


ddrumheller on DSK120RN23PROD with PROPOSALS1
Federal Register / Vol. 90, No. 14 / Thursday, January 23, 2025 / Proposed Rules 8001 

with Table 1 of GE CF34–10E SB 72–0351 

R01, before further flight, remove the 

combustion case from service. 

(2) At the next engine shop visit after the 

effective date of this AD, rework the affected 

HPT shroud/LPT nozzle assembly, in 

accordance with paragraph 3.B. of the 

Accomplishment Instructions of GE CF34– 

10E SB 72–0351 R01. 

(h) Definition 

For the purpose of this AD, an ‘‘engine 

shop visit’’ is defined as when the HPT 

shroud/LPT nozzle assembly or the HPT 

rotor disk is removed from the engine. 

(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 the AIR–520 Continued 

Operational Safety Branch, send it to the 

attention of the person identified in 

paragraph (j) 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 

of the local flight standards district office/ 

certificate holding district office. 

(j) Related Information 

For more information about this AD, 

contact Alexei Marqueen, Aviation Safety 

Engineer, FAA, FAA, 2200 South 216th 

Street, Des Moines, WA 98198; phone: (781) 

238–7178; email: alexei.t.marqueen@faa.gov. 

(k) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) 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 the AD specifies otherwise. 

(i) GE CF34–10E Service Bulletin 72–0351 

R01, dated July 17, 2019. 

(ii) [Reserved] 

(3) For GE material identified in this AD, 

contact GE, 1 Neumann Way, Cincinnati, OH 

45215; phone: (513) 552–3272; email: 

aviation.fleetsupport@ge.com; website: 

ge.com. 

(4) You may view this material at the FAA, 

Airworthiness Products Section, Operational 

Safety Branch, 1200 District Avenue, 

Burlington, MA 01803. For information on 

the availability of this material at the FAA, 

call (817) 222–5110. 

(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 January 6, 2025. 

Suzanne Masterson, 

Deputy Director, Integrated Certificate 

Management Division, Aircraft Certification 

Service. 

[FR Doc. 2025–01458 Filed 1–22–25; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2023–2423 Airspace 

Docket No. 23–ANM–63] 

RIN 2120–AA66 

Modification of Class D and E 

Airspace; Bozeman Yellowstone 

International Airport, Bozeman, MT 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: This action proposes to 

modify the Class D surface area 

airspace, Class E airspace area 

designated as surface area, Class E 

airspace areas designated as an 

extension to a Class D or Class E surface 

area, and the Class E airspace area 

extending upward from 700 feet above 

the surface of the earth at Bozeman 

Yellowstone International Airport, 

Bozeman, MT. These actions would 

support the safety and management of 

visual flight rules (VFR) and instrument 

flight rules (IFR) operations at the 

airport. 

DATES: Comments must be received on 

or before March 10, 2025. 

ADDRESSES: Send comments identified 

by FAA Docket No. FAA–2023–2423 

and Airspace Docket No. 23–ANM–63 

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: Send comments to 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 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 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: 

Nathan A. Chaffman, Federal Aviation 

Administration, Western Service Center, 

Operations Support Group, 2200 S 

216th Street, Des Moines, WA 98198; 

telephone (206) 231–3460. 

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 would 

modify Class D and Class E airspace to 

support VFR and IFR operations at 

Bozeman Yellowstone International 

Airport, Bozeman, MT. 

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 

send only one copy of written 

comments if comments are filed in 

writing. 


ddrumheller on DSK120RN23PROD with PROPOSALS1