12552 Federal Register / Vol. 86, No. 41 / Thursday, March 4, 2021 / Proposed Rules 

of Martin-Baker supplier P/Ns with Sikorsky 

P/Ns and kit P/Ns. 

Note 3 to paragraph (c): The marking 

‘‘SIL831 incorporated’’ or ‘‘SIL833 

incorporated,’’ as applicable, could be 

located adjacent to identification labels on 

the underside of the sitting platform 

assembly P/N MBCS4111. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code: 2500, Cabin Equipment/Furnishings; 

and 2520, Passenger Compartment 

Equipment. 

(e) Unsafe Condition 

This AD was prompted by an incident of 

a side facing utility seat detaching from wall 

attachment points during dynamic testing. 

The FAA is issuing this AD to detect and 

address a main back tube, a component of the 

main back tube assembly, which does not 

meet design requirements. The unsafe 

condition, if not addressed, could result in 

increased surface friction in the direction of 

the seat attenuation, failure of proper utility 

seat attenuation during a crash event, 

excessive lumbar loads in an observer seat 

during a crash event, and subsequent 

excessive or fatal occupant injury. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

(1) Within 125 hours time-in-service or six 

months after the effective date of this AD, 

whichever occurs first, replace each main 

back tube assembly by following Section 3., 

Accomplishment Instructions, paragraphs C. 

through E., of ASB 92–25–026; except where 

the service information referenced in ASB 

92–25–026 specifies destroying and 

disposing of parts or discarding parts, this 

AD requires removing those parts from 

service instead. 

Note 4 to paragraph (g)(1): SIL 831 and SIL 

833, referred to in ASB 92–25–026, refer to 

main back tube assembly as tube assembly, 

back main. 

(2) As of the effective date of this AD, do 

not install a Martin-Baker side facing utility 

seat identified in paragraph (c)(1) of this AD 

or a Martin-Baker observer seat identified in 

paragraph (c)(2) of this AD unless the actions 

in paragraph (g)(1) have been accomplished. 

(h) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Boston ACO 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 

certification office, send it to the attention of 

the person identified in paragraph (i)(1) of 

this AD. 

(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. 

(i) Related Information 

(1) For more information about this AD, 

contact Dorie Resnik, Aerospace Engineer, 

Aviation Safety Section, Boston ACO Branch, 

FAA, 1200 District Ave., Burlington, MA 

01803; phone: (781) 238–7693; email: 

dorie.resnik@faa.gov. 

(2) For service information identified in 

this AD, contact your local Sikorsky Field 

Representative or Sikorsky’s Service 

Engineering Group at Sikorsky Aircraft 

Corporation, Mailstop K100, 124 Quarry 

Road, Trumbull, CT 06611; telephone 1–800– 

946–4337 (1–800–Winged–S); email wcs_

cust_service_eng.gr-sik@lmco.com. Operators 

may also log on to the Sikorsky 360 website 

at https://www.sikorsky360.com. You may 

view this referenced service information at 

the FAA, Office of the Regional Counsel, 

Southwest Region, 10101 Hillwood Pkwy., 

Room 6N–321, Fort Worth, TX 76177. For 

information on the availability of this 

material at the FAA, call (817) 222–5110. 

Issued on February 19, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–03950 Filed 3–3–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 73 

[Docket No. FAA–2020–1053; Airspace 

Docket No. 20–ANM–32] 

RIN 2120–AA66 

Proposed Amendment of Restricted 

Area R–7001C and Establishment of 

Restricted Areas R–7001D, R–7002A, 

R–7002B, and R–7002C; Guernsey, WY 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: This action proposes to 

amend restricted area R–7001C and 

establish three restricted areas, R– 

7001D, R–7002A, R–7002B, and R– 

7002C at Guernsey, WY. The Wyoming 

Army National Guard (WYARNG) 

requested the establishment of the new 

restricted areas to support its air-toground firing from helicopters and 

longer range artillery training. This 

additional airspace allows for the 

segregation of hazardous activities from 

non-participating air traffic. The FAA is 

also proposing to amend R–7001C to 

correct an inadvertent error to ensure 

proper vertical separation. 

DATES: Comments must be received on 

or before April 19, 2021. 

ADDRESSES: Send comments on this 

proposal to the U.S. Department of 

Transportation, Docket Operations, 1200 

New Jersey Avenue SE, West Building 

Ground Floor, Room W12–140, 

Washington, DC 20590–0001; telephone: 

1 (800) 647–5527, or (202) 366–9826. 

You must identify FAA Docket Number 

FAA–2020–0153; Airspace Docket No. 

20–ANM–32 at the beginning of your 

comments. You may also submit 

comments through the internet at 

https://www.regulations.gov. 

FOR FURTHER INFORMATION CONTACT: 

Christopher McMullin, Rules and 

Regulations Group, Office of Policy, 

Federal Aviation Administration, 800 

Independence Avenue SW, Washington, 

DC 20591; telephone: (202) 267–8783. 

SUPPLEMENTARY INFORMATION: 

Authority for This Rulemaking 

The FAA’s authority to issue rules 

regarding aviation safety is found in 

Title 49 of the United States Code 

(U.S.C.). 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 

amend and establish restricted area 

airspace at Guernsey, WY, to contain 

activities deemed hazardous to 

nonparticipating aircraft. 

Comments Invited 

Interested parties are invited to 

participate in this proposed rulemaking 

by submitting such written data, views, 

or arguments as they may desire. 

Comments that provide the factual basis 

supporting the views and suggestions 

presented are particularly helpful in 

developing reasoned regulatory 

decisions on the proposal. Comments 

are specifically invited on the overall 

regulatory, aeronautical, economic, 

environmental, and energy-related 

aspects of the proposal. 

Communications should identify both 

docket numbers (FAA Docket Number 

FAA–2020–0153; Airspace Docket No. 

20–ANM–32) and be submitted in 

triplicate to the Docket Management 

Facility (see ADDRESSES section for 

address and phone number). You may 

also submit comments through the 

internet at https://www.regulations.gov. 

Commenters wishing the FAA to 

acknowledge receipt of their comments 


jbell on DSKJLSW7X2PROD with PROPOSALS
Federal Register / Vol. 86, No. 41 / Thursday, March 4, 2021 / Proposed Rules 12553 

on this action must submit with those 

comments a self-addressed, stamped 

postcard on which the following 

statement is made: ‘‘Comments to FAA 

Docket FAA–2020–0153; Airspace 

Docket No. 20–ANM–32.’’ The postcard 

will be date/time stamped and returned 

to the commenter. 

All communications received on or 

before the specified comment closing 

date will be considered before taking 

action on the proposed rule. The 

proposal contained in this action may 

be changed in light of comments 

received. All comments submitted will 

be available for examination in the 

public docket both before and after the 

comment closing date. A report 

summarizing each substantive public 

contact with FAA personnel concerned 

with this rulemaking will be filed in the 

docket. 

Availability of NPRM’s 

An electronic copy of this document 

may be downloaded through the 

internet at https://www.regulations.gov. 

Recently published rulemaking 

documents can also be accessed through 

the FAA’s web page at https://

www.faa.gov/air_traffic/publications/ 

airspace_amendments/. 

You may review the public docket 

containing the proposal, any comments 

received and any final disposition in 

person in the Dockets Office (see 

ADDRESSES section for address and 

phone number) between 9:00 a.m. and 

5:00 p.m., Monday through Friday, 

except federal holidays. An informal 

docket may also be examined during 

normal business hours at the office of 

the Western Service Center, Operations 

Support Group, Federal Aviation 

Administration, 2200 South 216th St., 

Des Moines, WA 98198. 

Background 

In a final rule published on February 

14, 1962, the FAA established restricted 

area R–7001 (27 FR 1355) at Guernsey, 

WY, in order to provide special use 

airspace for the hazardous artillery 

firing conducted by Army National 

Guard (Army) units during its annual 

summer training periods. Since R–7001 

was established, the Army’s activities 

and technologies have changed, 

requiring amendments to R–7001 and 

the establishment of new restricted 

areas to ensure non-participating aircraft 

are protected from hazardous activity in 

the National Airspace System (NAS). 

Currently, the restricted areas at 

Guernsey, WY, are designated as 

R–7001A, R–7001B, and R–7001C. In 

August 1979, the FAA divided R–7001 

vertically into R–7001A and R–7001B 

(44 FR 34114; June 14, 1979) to provide 

greater flexibility for military training 

and divide the airspace vertically to 

allow non-participating aircraft access 

to unused portions of the airspace, 

when not in use. The FAA established 

R–7001C in February 1985 (50 FR 6156; 

February 14, 1985) to protect the NAS 

from the high angle fire of various 

weapons and permit maximum firing 

capability of these weapons. 

In order to address the advances in 

weapons systems capabilities and 

provide the United States Army the 

ability to conduct longer range artillery 

training, several Controlled Firing Areas 

(CFA) were established for use in the 

same location as R–7002A, R–7002 B, 

and R–7002C. The current configuration 

of restricted areas and CFAs can no 

longer support the full capability of the 

artillery in part, due to the operational 

limitations of the CFAs. Camp Guernsey 

Joint Training Center hosts several 

exercises throughout the year. During 

these exercises, 155mm artillery, M270 

Multiple Launch Rocket System 

(MLRS), and M142 High Mobility 

Artillery Rocket System (HIMARS) are 

fired. Additionally, Guernsey, WY is the 

closest restricted area complex to F.E. 

Warren Air Force Base, WY. The 

development of these new restricted 

areas would accommodate the United 

States Air Force’s activities and provide 

for its ability to train locally for air-toground firing from helicopters, and the 

associated Weapon Danger Zones 

(WDZ). 

Finally, while conducting the 

evaluation of the restricted areas at 

Guernsey, WY, the FAA noted that R– 

7001B and R–7001C were inadvertently 

overlapping airspace. The ceiling of R– 

7001B stops at 23,500 feet mean sea 

level (MSL) and the floor of R–7001C 

starts at 23,500 feet MSL. This is an 

error and the proposed amendment 

would provide the necessary vertical 

separation between the two restricted 

airspace areas. 

The Proposal 

The FAA is proposing an amendment 

to Title 14 Code of Federal Regulations 

(14 CFR) part 73 to amend restricted 

area R–7001C and establish R–7001D, 

R–7002A, R–7002B, and R–7002C at 

Guernsey, WY. The FAA is proposing 

this action at the request of the 

WYARNG activities and due to correct 

an inadvertent error. Full legal 

descriptions are in the ‘‘The Proposed 

Amendment’’ section of this NPRM. 

The proposed restricted areas are 

described below. 

R–7001C: R–7001C would retain the 

current boundaries, but the floor of the 

restricted area would begin at 23,501 

feet MSL. No other changes would be 

made to the legal description. 

R–7001D: R–7001D would be 

established above R–7001C and would 

have the same boundaries as the 

existing restricted area. The altitudes 

would be from 30,001 to 45,000 feet 

MSL. Operations would be limited to 20 

days a year. 

R–7002A: R–7002A would be 

established north of, and sharing its 

southern boundary with R–7001A, 

R–7001B, and R–7001C. The altitudes 

would be from the surface to 23,500 feet 

MSL. Operations would be limited to 20 

days a year. 

R–7002B: R–7002B would be 

established on the southeast border, and 

sharing its northern boundary with 

R–7001A, R–7001B, and R–7001C. The 

altitudes would be from the surface to 

23,500 feet MSL. Operations would be 

limited to 20 days a year. 

R–7002C: R–7002C would be 

established west of, and sharing its 

eastern border with R–7001A, R–7001B, 

and R–7001C. The altitudes would be 

from the surface to 23,500 feet MSL. 

Operations would be limited to 20 days 

a year. 

Regulatory Notices and Analyses 

The FAA has determined that this 

proposed 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 Department of 

Transportation (DOT) Regulatory 

Policies and Procedures (44 FR 11034; 

February 26, 1979); and (3) does not 

warrant preparation of a regulatory 

evaluation as the anticipated impact is 

so minimal. Since this is a routine 

matter that will only affect air traffic 

procedures and air navigation, it is 

certified that this proposed rule, when 

promulgated, will not have a significant 

economic impact on a substantial 

number of small entities under the 

criteria of the Regulatory Flexibility Act. 

Environmental Review 

This proposal will be subject to an 

environmental analysis in accordance 

with FAA Order 1050.1F, 

‘‘Environmental Impacts: Policies and 

Procedures’’ prior to any FAA final 

regulatory action. 

List of Subjects in 14 CFR Part 73 

Airspace, Prohibited areas, Restricted 

areas. 


jbell on DSKJLSW7X2PROD with PROPOSALS
12554 Federal Register / Vol. 86, No. 41 / Thursday, March 4, 2021 / Proposed Rules 

1 In 2003, the City of Louisville and Jefferson 

County governments merged and the ‘‘Jefferson 

The Proposed Amendment 

In consideration of the foregoing, the 

Federal Aviation Administration 

proposes to amend 14 CFR part 73 as 

follows: 

PART 73—SPECIAL USE AIRSPACE 

■ 1. The authority citation for part 73 

continues to read as follows: 

Authority: 49 U.S.C. 106(f), 106(g); 40103, 

40113, 40120; E.O. 10854, 24 FR 9565, 3 CFR, 

1959–1963 Comp., p. 389. 

§ 73.70 Wyoming [Amended] 

■ 2. § 73.70 is amended as follows: 

* * * * * 

R–7001C Guernsey, WY [Amended] 

Boundaries: Beginning at lat. 42°27′30′′ N, 

long. 104°52′32′′ W; to lat. 42°27′30′′ N, long. 

104°42′32′′ W; to lat. 42°22′30′′ N, long. 

104°42′32′′ W; to lat. 42°20′00′′ N, long. 

104°52′32′′ W; to the point of beginning. 

Designated altitudes: 23,501 feet MSL to 

30,000 feet MSL. 

Time of designation: Intermittent, 24 hours 

in advance by NOTAM. 

Controlling agency: FAA, Denver ARTCC. 

Using agency: Adjutant General, State of 

Wyoming. 

R–7001D Guernsey, WY [New] 

Boundaries: Beginning at lat. 42°27′30′′ N, 

long. 104°52′32′′ W; to lat. 42°27′30′′ N, long. 

104°42′32′′ W; to lat. 42°22′30′′ N, long. 

104°42′32′′ W; to lat. 42°20′00′′ N, long. 

104°52′32′′ W; to the point of beginning. 

Designated Altitudes: 30,001 feet MSL to 

45,000 feet MSL. 

Time of Designation: By NOTAM, at least 

24 hours in advance. 

Controlling Agency: FAA, Denver ARTCC. 

Using Agency: Adjutant General, State of 

Wyoming. 

R–7002A Guernsey, WY [New] 

Boundaries: Beginning at lat. 42°27′55′′ N, 

long. 104°52′33′′ W; to lat. 42°27′55′′ N, long. 

104°51′46′′ W; to lat. 42°28′21′′ N, long. 

104°51′45′′ W; to lat. 42°28′21′′ N, long. 

104°48′46′′ W; to lat. 42°27′56′′ N, long. 

104°48′46′′ W; to lat. 42°27′55′′ N, long. 

104°47′28′′ W; to lat. 42°27′30′′ N, long. 

104°46′43′′ W; to lat. 42°27′30′′ N, long. 

104°52′32′′ W; to the point of beginning. 

Designated Altitudes: Surface to 23,500 

feet MSL. 

Time of Designation: By NOTAM, at least 

24 hours in advance. 

Controlling Agency: FAA, Denver ARTCC. 

Using Agency: Adjutant General, State of 

Wyoming. 

R–7002B Guernsey, WY [New] 

Boundaries: Beginning at lat. 42°22′24′′ N, 

long. 104°42′54′′ W; to lat. 42°21′41′′ N, long. 

104°42′52′′ W; to lat. 42°21′11′′ N, long. 

04°43′17′′ W; to lat. 42°21′12′′ N, long. 

104°47′16′′ W; to lat. 42°21′19′′ N, long. 

104°47′16′′ W; to the point of beginning. 

Designated Altitudes: Surface to 23,500 

feet MSL. 

Time of Designation: By NOTAM, at least 

24 hours in advance. 

Controlling Agency: FAA, Denver ARTCC. 

Using Agency: Adjutant General, State of 

Wyoming. 

R–7002C Guernsey, WY [New] 

Boundaries: Beginning at lat. 42°27′03′′ N; 

long. 104°53′54′′ W; to lat. 42°27′03′′ N; long. 

104°52′32′′ W; to lat. 42°20′00′′ N; long. 

104°52′32′′ W; to lat. 42°20′18′′ N; long. 

104°51′19′′ W; to lat. 42°19′42′′ N; long. 

104°51′17′′ W; to lat. 42°19′43′′ N; long. 

104°53′03′′ W; to lat. 42°20′49′′ N; long. 

104°54′38′′ W; to lat. 42°22′43′′ N; long. 

104°54′38′′ W; to lat. 42°22′48′′ N; long. 

104°53′22′′ W; to lat. 42°23′39′′ N; long. 

104°53′23′′ W; to lat. 42°23′40′′ N; long. 

104°53′58′′ W; to the point of beginning; 

excluding that airspace 500 feet AGL and 

below 1⁄4 mile either side of the BNSF 

railroad. 

Designated Altitudes: Surface to 23,500 

feet MSL. 

Time of Designation: By NOTAM, at least 

24 hours in advance. 

Controlling Agency: FAA, Denver ARTCC. 

Using Agency: Adjutant General, State of 

Wyoming. 

* * * * * 

Issued in Washington, DC, on January 11, 

2021. 

George Gonzalez, 

Acting Manager, Rules and Regulations 

Group. 

[FR Doc. 2021–00748 Filed 3–3–21; 8:45 am] 

BILLING CODE 4910–13–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

40 CFR Part 52 

[EPA–R04–OAR–2020–0500; FRL–10018– 

04–-Region 4] 

Air Plan Approval; KY; Removal of 

Asbestos Requirements From 

Jefferson County Regulations 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Proposed rule. 

SUMMARY: The Environmental Protection 

Agency (EPA) is proposing to correct the 

erroneous incorporation of asbestos 

National Emission Standards for 

Hazardous Air Pollutants (NESHAP) 

requirements into the Jefferson County 

portion of the Kentucky State 

Implementation Plan (SIP). The 

continued presence of the asbestos 

requirements in the Jefferson County 

portion of the Kentucky SIP is 

inappropriate and potentially confusing 

and thus problematic for affected 

sources, the Commonwealth, local 

agencies, and EPA. EPA is proposing to 

remove the asbestos requirements 

because these requirements are not 

related to the attainment and 

maintenance of the national ambient air 

quality standards (NAAQS) and are 

therefore unrelated to the Clean Air Act 

(CAA or ‘‘Act’’) requirements for SIPs. 

DATES: Comments must be received on 

or before April 5, 2021. 

ADDRESSES: Submit your comments, 

identified by Docket ID No. EPA–R04– 

OAR–2020–0500 at 

www.regulations.gov. Follow the online 

instructions for submitting comments. 

Once submitted, comments cannot be 

edited or removed from Regulations.gov. 

EPA may publish any comment received 

to its public docket. Do not submit 

electronically any information you 

consider to be Confidential Business 

Information (CBI) or other information 

whose disclosure is restricted by statute. 

Multimedia submissions (audio, video, 

etc.) must be accompanied by a written 

comment. The written comment is 

considered the official comment and 

should include discussion of all points 

you wish to make. EPA will generally 

not consider comments or comment 

contents located outside of the primary 

submission (i.e., on the web, cloud, or 

other file sharing system). For 

additional submission methods, the full 

EPA public comment policy, 

information about CBI or multimedia 

submissions, and general guidance on 

making effective comments, please visit 

www2.epa.gov/dockets/commentingepa-dockets. 

FOR FURTHER INFORMATION CONTACT: Brad 

Akers, Air Regulatory Management 

Section, Air Planning and 

Implementation Branch, Air and 

Radiation Division, U.S. Environmental 

Protection Agency, Region 4, 61 Forsyth 

Street SW, Atlanta, Georgia 30303–8960. 

The telephone number is (404) 562– 

9089. Mr. Akers can also be reached via 

electronic mail at akers.brad@epa.gov. 

SUPPLEMENTARY INFORMATION: 

I. Background 

Section 110 of the CAA requires states 

to develop and submit to EPA a SIP to 

ensure that state air quality meets the 

NAAQS. These ambient air quality 

standards currently address six criteria 

pollutants: Carbon monoxide, nitrogen 

dioxide, ozone, lead, particulate matter, 

and sulfur dioxide. Each federallyapproved SIP protects air quality 

primarily by addressing air pollution at 

its point of origin through air pollution 

regulations and control strategies. EPAapproved SIP regulations and control 

strategies are federally enforceable. 

On October 23, 2001 (66 FR 53658), 

EPA approved revisions to the Jefferson 

County portion of the Kentucky SIP,1


jbell on DSKJLSW7X2PROD with PROPOSALS