Federal Register / Vol. 86, No. 172 / Thursday, September 9, 2021 / Rules and Regulations 50451 

(h) Alternative Methods of Compliance 

(AMOCs) 

(1) 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 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 Related Information or email: 9- 

AVS-AIR-730-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. 

(i) Related Information 

(1) For more information about this AD, 

contact Penelope Trease, Aviation Safety 

Engineer, General Aviation & Rotorcraft 

Section, International Validation Branch, 

FAA, 26805 E 68th Avenue, Denver, CO 

80249; phone: (303) 342–1094; email: 

penelope.trease@faa.gov. 

(2) Refer to European Aviation Safety 

Agency (EASA) AD 2018–0153, dated July 

19, 2018, for more information. You may 

examine the EASA AD in the AD docket at 

https://www.regulations.gov by searching for 

and locating it in Docket No. FAA–2021– 

0502. 

(j) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 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 the AD specifies otherwise. 

(i) Britten-Norman Service Bulletin 

Number SB 363, Issue 3, dated May 23, 2018. 

(ii) Britten-Norman Service Bulletin 

Number SB 364, Issue 3, dated May 23, 2018. 

(3) For service information identified in 

this AD, contact Britten-Norman Aircraft 

Limited, Commodore House, Mountbatten 

Business Centre, Millbrook Road East, 

Southampton SO15 1HY, United Kingdom; 

phone: + 44 20 3371 4000; fax: + 44 20 3371 

4001; email: info@bnaircraft.com; website: 

https://britten-norman.com/approvalstechnical-publications/. 

(4) You may view this service information 

at FAA, Airworthiness Products Section, 

Operational Safety Branch, 901 Locust, 

Kansas City, MO 64106. For information on 

the availability of this material at the FAA, 

call (816) 329–4148. 

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, 

email: fr.inspection@nara.gov, or go to: 

https://www.archives.gov/federal-register/cfr/ 

ibr-locations.html. 

Issued on August 17, 2021. 

Gaetano A. Sciortino, 

Deputy Director for Strategic Initiatives, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2021–19302 Filed 9–8–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0459; Project 

Identifier MCAI–2021–00129–T; Amendment 

39–21697; AD 2021–17–14] 

RIN 2120–AA64 

Airworthiness Directives; Gulfstream 

Aerospace LP Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

Gulfstream Aerospace LP Model 

Gulfstream G280 airplanes. This AD was 

prompted by a report that during fullscale fatigue testing, a crack was found 

in the area of the attachment of the wing 

rib 0 to the front spar. This AD requires 

non-destructive testing on the forward 

(front) spar vertical stiffener and rib 0 

for any cracking, installation of a 

doubler to the forward (front) spar and 

rib 0 attachment, and repair if 

necessary, as specified in a Civil 

Aviation Authority of Israel (CAAI) AD, 

which is incorporated by reference. The 

FAA is issuing this AD to address the 

unsafe condition on these products. 

DATES: This AD is effective October 14, 

2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of October 14, 2021. 

ADDRESSES: For material incorporated 

by reference (IBR) in this AD, contact 

the CAAI, P.O. Box 1101, Golan Street, 

Airport City, 70100, Israel; telephone 

972–3–9774665; fax 972–3–9774592; 

email aip@mot.gov.il. You may find this 

IBR material on the CAAI website at 

https://www.caa.gov.il. You may view 

this material at the FAA, Airworthiness 

Products Section, Operational Safety 

Branch, 2200 South 216th St., Des 

Moines, WA. For information on the 

availability of this material at the FAA, 

call 206–231–3195. It is also available in 

the AD docket at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2021– 

0459. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0459; or in person at Docket 

Operations between 9 a.m. and 5 p.m., 

Monday through Friday, except Federal 

holidays. The AD docket contains this 

final rule, the mandatory continuing 

airworthiness information (MCAI), any 

comments received, and other 

information. The address for Docket 

Operations is U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue SE, Washington, DC 20590. 

FOR FURTHER INFORMATION CONTACT: Tom 

Rodriguez, Aerospace Engineer, Large 

Aircraft Section, International 

Validation Branch, FAA, 2200 South 

216th St., Des Moines, WA 98198; 

telephone and fax 206–231–3226; email 

Tom.Rodriguez@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The CAAI, which is the aviation 

authority for Israel, has issued CAAI AD 

I–57–2020–06–01, dated January 27, 

2021 (CAAI AD I–57–2020–06–01) (also 

referred to as the MCAI), to correct an 

unsafe condition for certain Gulfstream 

Aerospace LP Model Gulfstream G280 

airplanes. 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to certain Gulfstream Aerospace 

LP Model Gulfstream G280 airplanes. 

The NPRM published in the Federal 

Register on June 10, 2021 (86 FR 30819). 

The NPRM was prompted by a report 

that during full-scale fatigue testing, a 

crack was found in the area of the 

attachment of the wing rib 0 to the front 

spar. The NPRM proposed to require 

non-destructive testing on the forward 

(front) spar vertical stiffener and rib 0 

for any cracking, installation of a 

doubler to the forward (front) spar and 

rib 0 attachment, and repair if 

necessary, as specified in CAAI AD I– 

57–2020–06–01. 

The FAA is issuing this AD to address 

any cracking at the area of the wing rib 

0 to the front spar, which could affect 

the structural integrity of the wing. See 

the MCAI for additional background 

information. 

Discussion of Final Airworthiness 

Directive Comments 

The FAA received no comments on 

the NPRM or on the determination of 

the cost to the public. 


lotter on DSK11XQN23PROD with RULES1
50452 Federal Register / Vol. 86, No. 172 / Thursday, September 9, 2021 / Rules and Regulations 

Conclusion 

The FAA reviewed the relevant data 

and determined that air safety requires 

adopting this AD as proposed. Except 

for minor editorial changes, this AD is 

adopted as proposed in the NPRM. 

None of the changes will increase the 

economic burden on any operator. 

Accordingly, the FAA is issuing this AD 

to address the unsafe condition on these 

products. 

Related Service Information Under 1 

CFR Part 51 

CAAI AD I–57–2020–06–01 specifies 

procedures for non-destructive testing 

(high frequency, mid frequency, and 

bolt hole eddy current inspections; and 

a liquid (dye) penetrant inspection) for 

cracking on the forward (front) spar 

vertical stiffener and rib 0, installation 

of a doubler to the forward (front) spar 

and rib 0 attachment, and repair if 

necessary. This material is reasonably 

available because the interested parties 

have access to it through their normal 

course of business or by the means 

identified in the ADDRESSES section. 

Costs of Compliance 

The FAA estimates that this AD 

affects 23 airplanes of U.S. registry. The 

FAA estimates the following costs to 

comply with this AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

80 work-hours × $85 per hour = $6,800* .................................................................................... $400 $7,200 * $165,600 * 

* If the actions are accomplished during 4C Check. 

The FAA has received no definitive 

data on which to base the cost estimates 

for the repair specified in this AD. 

According to the manufacturer, some 

or all of the costs of this AD may be 

covered under warranty, thereby 

reducing the cost impact on affected 

operators. The FAA does not control 

warranty coverage for affected operators. 

As a result, the FAA has included all 

known costs in the cost estimate. 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. Subtitle VII: 

Aviation Programs, describes in more 

detail the scope of the Agency’s 

authority. 

The FAA is issuing this rulemaking 

under the authority described in 

Subtitle VII, Part A, Subpart III, Section 

44701: General requirements. Under 

that section, Congress charges the FAA 

with promoting safe flight of civil 

aircraft in air commerce by prescribing 

regulations for practices, methods, and 

procedures the Administrator finds 

necessary for safety in air commerce. 

This regulation is within the scope of 

that authority because it addresses an 

unsafe condition that is likely to exist or 

develop on products identified in this 

rulemaking action. 

Regulatory Findings 

This AD will not have federalism 

implications under Executive Order 

13132. This AD will not have a 

substantial direct effect on the States, on 

the relationship between the national 

government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Will not affect intrastate aviation 

in Alaska, and 

(3) Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 14 CFR part 39 as 

follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

2021–17–14 Gulfstream Aerospace LP: 

Amendment 39–21697; Docket No. 

FAA–2021–0459; Project Identifier 

MCAI–2021–00129–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective October 14, 2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Gulfstream Aerospace 

LP Model Gulfstream G280 airplanes, 

certificated in any category, as identified in 

The Civil Aviation Authority of Israel (CAAI) 

AD I–57–2020–06–01, dated January 27, 2021 

(CAAI AD I–57–2020–06–01). 

(d) Subject 

Air Transport Association (ATA) of 

America Code 57, Wings. 

(e) Reason 

This AD was prompted by a report that 

during full-scale fatigue testing, a crack was 

found in the area of the attachment of the 

wing rib 0 to the front spar. The FAA is 

issuing this AD to address any cracking at the 

area of the wing rib 0 to the front spar, which 

could affect the structural integrity of the 

wing. 

(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, CAAI AD I–57–2020–06– 

01. 

(h) Exception to CAAI AD I–57–2020–06–01 

Where CAAI AD I–57–2020–06–01 requires 

compliance ‘‘not later than 5,000 flight 

cycles,’’ this AD requires compliance before 

the accumulation of 5,000 total flight cycles 

since the date of issuance of the original 

Israeli airworthiness certificate or the date of 

issuance of the original Israeli export 

certificate of airworthiness. 

(i) No Reporting Requirement 

Although the service information 

referenced in CAAI AD I–57–2020–06–01 

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, Large Aircraft 

Section, International Validation Branch, 

FAA, has the authority to approve AMOCs 


lotter on DSK11XQN23PROD with RULES1
Federal Register / Vol. 86, No. 172 / Thursday, September 9, 2021 / Rules and Regulations 50453 

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 Large Aircraft 

Section, International Validation Branch, 

send it to the attention of the person 

identified in paragraph (k) of this AD. 

Information may be emailed to: 9-AVS-AIR730-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, Large Aircraft Section, 

International Validation Branch, FAA; or 

CAAI; or CAAI’s authorized Designee. If 

approved by the CAAI Designee, the approval 

must include the Designee’s authorized 

signature. 

(k) Related Information 

For more information about this AD, 

contact Tom Rodriguez, Aerospace Engineer, 

Large Aircraft Section, International 

Validation Branch, FAA, 2200 South 216th 

St. Des Moines, WA 98198; telephone and fax 

206–231–3226; email Tom.Rodriguez@

faa.gov. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 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) The Civil Aviation Authority of Israel 

(CAAI) AD I–57–2020–06–01, dated January 

27, 2021. 

(ii) [Reserved] 

(3) For CAAI AD I–57–2020–06–01, contact 

CAAI, P.O. Box 1101, Golan Street, Airport 

City, 70100, Israel; telephone 972–3– 

9774665; fax 972–3–9774592; email aip@

mot.gov.il. You may find this CAAI AD on 

the CAAI website at https://www.caa.gov.il. 

(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 that is 

incorporated by reference at the National 

Archives and Records Administration 

(NARA). For information on the availability 

of this material at NARA, email 

fr.inspection@nara.gov, or go to: https://

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued on August 12, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–19389 Filed 9–8–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2021–0235; Airspace 

Docket No. 21–AGL–18] 

RIN 2120–AA66 

Revocation of Class E Airspace; Port 

Huron, MI 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: This action revokes the Class 

E surface airspace at St. Clair County 

International Airport, Port Huron, MI. 

This action is the result of an airspace 

review caused by the decommissioning 

of the Remote Communications Outlet 

(RCO) frequency at St. Clair County 

International Airport. 

DATES: Effective 0901 UTC, December 2, 

2021. The Director of the Federal 

Register approves this incorporation by 

reference action under 1 CFR part 51, 

subject to the annual revision of FAA 

Order 7400.11 and publication of 

conforming amendments. 

ADDRESSES: FAA Order 7400.11E, 

Airspace Designations and Reporting 

Points, and subsequent amendments can 

be viewed online at https://

www.faa.gov/air_traffic/publications/. 

For further information, you can contact 

the Airspace Policy Group, Federal 

Aviation Administration, 800 

Independence Avenue SW, Washington, 

DC 20591; telephone: (202) 267–8783. 

The Order is also available for 

inspection at the National Archives and 

Records Administration (NARA). For 

information on the availability of FAA 

Order 7400.11E at NARA, email 

fr.inspection@nara.gov or go to https:// 

www.archives.gov/federal-register/cfr/ 

ibr-locations.html. 

FOR FURTHER INFORMATION CONTACT: 

Rebecca Shelby, Federal Aviation 

Administration, Operations Support 

Group, Central Service Center, 10101 

Hillwood Parkway, Fort Worth, TX 

76177; telephone (817) 222–5857. 

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 revokes the 

Class E surface airspace St. Clair County 

International Airport to support 

instrument flight rule operations at this 

airport. 

History 

The FAA published a notice of 

proposed rulemaking in the Federal 

Register (86 FR 24797; May 10, 2021) 

for Docket No. FAA–2021–0235 to 

revoke the Class E Surface Airspace at 

the St. Clair County International 

Airport, Port Huron, MI. Interested 

parties were invited to participate in 

this rulemaking effort by submitting 

written comments on the proposal to the 

FAA. No comments were received. 

Class E airspace designations are 

published in paragraph 6005 of FAA 

Order 7400.11E, dated July 21, 2020, 

and effective September 15, 2020, which 

is incorporated by reference in 14 CFR 

71.1. The Class E airspace designations 

listed in this document will be 

published subsequently in the Order. 

Availability and Summary of 

Documents for Incorporation by 

Reference 

This document amends FAA Order 

7400.11E, Airspace Designations and 

Reporting Points, dated July 21, 2020, 

and effective September 15, 2020. FAA 

Order 7400.11E is publicly available as 

listed in the ADDRESSES section of this 

document. FAA Order 7400.11E lists 

Class A, B, C, D, and E airspace areas, 

air traffic service routes, and reporting 

points. 

The Rule 

This amendment to 14 CFR part 71 

revokes the Class E surface airspace at 

St. Clair County International Airport, 

Port Huron, MI, as it is no longer 

needed. 

This action is the result of an airspace 

review caused by the decommissioning 

of the RCO, which provides navigation 

information for the instrument 

procedures this airport. 

FAA Order 7400.11, Airspace 

Designations and Reporting Points, is 

published yearly and effective on 

September 15. 

Regulatory Notices and Analyses 

The FAA has determined that this 

regulation only involves an established 

body of technical regulations for which 

frequent and routine amendments are 

necessary to keep them operationally 


lotter on DSK11XQN23PROD with RULES1