Federal Register / Vol. 86, No. 114 / Wednesday, June 16, 2021 / Proposed Rules 31989 

encouraged to submit written remarks to 

the docket, which will be made part of 

the record. 

(4) For information on services for 

individuals with disabilities or to 

request technical assistance at the 

meeting, please email 

DHSMeetingSupport@icf.com by June 

25, 2021. 

(5) Representatives of DHS will 

preside over the meeting. 

(6) The meeting will be recorded by 

a court reporter. The transcript will be 

made available at www.regulations.gov. 

Any person who is interested in 

purchasing a copy of the transcript 

should contact the court reporter 

directly. 

(7) Statements made by DHS 

representatives are intended to facilitate 

discussion of the issues or to clarify 

issues. Any statement made during the 

meeting by a DHS representative is not 

intended to be, and should not be 

construed as, DHS’s official position. 

(8) The meeting is designed to invite 

public views and gather additional 

information. No individual will be 

subject to cross-examination by any 

other participant; however, DHS 

representatives may ask questions to 

clarify a statement. 

Kelli Ann Burriesci, 

Acting Under Secretary, Office of Strategy, 

Policy, and Plans, United States Department 

of Homeland Security. 

[FR Doc. 2021–12616 Filed 6–15–21; 8:45 am] 

BILLING CODE 9110–9M–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0501; Project 

Identifier MCAI–2021–00168–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 

supersede Airworthiness Directive (AD) 

2019–20–10, which applies to certain 

Airbus SAS Model A318 series 

airplanes; Model A319–111, –112, –113, 

–114, –115, –131, –132, and –133 

airplanes; Model A320–211, –212, –214, 

–216, –231, –232, and –233 airplanes; 

and Model A321–111, –112, –131, –211, 

–212, –213, –231, and –232 airplanes. 

AD 2019–20–10 requires repetitive 

rototest inspections of the holes at the 

door stop fittings for any cracking, and 

corrective actions if necessary. Since the 

FAA issued AD 2019–20–10, a 

clarification of a certain compliance 

time for the rototest inspection was 

added. This proposed AD would clarify 

a certain compliance time and continue 

to require repetitive rototest inspections 

of the holes at the door stop fittings for 

any cracking, and repair if necessary, as 

specified in a European Union Aviation 

Safety Agency (EASA) AD, which is 

proposed for incorporation by reference. 

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 August 2, 2021. 

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 

https://www.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. 

For material that will be incorporated 

by reference (IBR) in this AD, contact 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 

8999 000; email ADs@easa.europa.eu; 

internet www.easa.europa.eu. You may 

find this IBR material on the EASA 

website at https://ad.easa.europa.eu. 

You may view this IBR 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 on 

the internet at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2021– 

0501. 

Examining the AD Docket 

You may examine the AD docket on 

the internet at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2021– 

0501; 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, any 

comments received, and other 

information. The street address for 

Docket Operations is listed above. 

FOR FURTHER INFORMATION CONTACT: 

Sanjay Ralhan, Aerospace Engineer, 

Large Aircraft Section, International 

Validation Branch, FAA, 2200 South 

216th St., Des Moines, WA 98198; 

telephone and fax 206–231–3223; email 

Sanjay.Ralhan@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–2021–0501; Project Identifier 

MCAI–2021–00168–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 https://

www.regulations.gov, including any 

personal information you provide. The 

agency will also post a report 

summarizing each substantive verbal 

contact received about this proposed 

AD. 

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 Sanjay Ralhan, 

Aerospace Engineer, Large Aircraft 

Section, International Validation 

Branch, FAA, 2200 South 216th St., Des 

Moines, WA 98198; telephone and fax 

206–231–3223; email Sanjay.Ralhan@

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. 


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31990 Federal Register / Vol. 86, No. 114 / Wednesday, June 16, 2021 / Proposed Rules 

Background 

The FAA issued AD 2019–20–10, 

Amendment 39–19763 (84 FR 61526, 

November 13, 2019) (AD 2019–20–10), 

which applies to certain Airbus SAS 

Model A318 series airplanes; Model 

A319–111, –112, –113, –114, –115, 

–131, –132, and –133 airplanes; Model 

A320–211, –212, –214, –216, –231, 

–232, and –233 airplanes; and Model 

A321–111, –112, –131, –211, –212, 

–213, –231, and –232 airplanes. AD 

2019–20–10 requires repetitive rototest 

inspections of the holes at the door stop 

fittings for any cracking, and corrective 

actions if necessary. The FAA issued 

AD 2019–20–10 to address cracking of 

the web holes at the door stop fittings, 

which could affect the structural 

integrity of the airplane. 

Actions Since AD 2019–20–10 Was 

Issued 

Since the FAA issued AD 2019–20– 

10, a clarification of the initial 

compliance time for the rototest 

inspection, related to the incorporation 

of certain airworthiness limitations 

(ALI) tasks has been added. Certain 

airworthiness limitations (ALI) tasks 

referenced in EASA AD 2018–0289, 

dated December 21, 2018 (which 

corresponds to FAA AD 2019–20–10) 

were initially applicable only to the leftand right-hand door stop fitting holes at 

position 1 or 7 at fuselage frame (FR)20, 

and, at a later stage, were made 

applicable to the left- and right-hand 

door stop fitting holes at position 1 or 

7 at fuselage FR16. An operator reported 

a possible misunderstanding of the 

compliance time in EASA AD 2018– 

0289. Therefore, EASA determined that 

the compliance time language related to 

accomplishment of those ALI tasks 

needed to be clarified. 

EASA, which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA AD 2018– 

0289R1, dated February 10, 2021 (EASA 

AD 2018–0289R1) (also referred to as 

the Mandatory Continuing 

Airworthiness Information, or the 

MCAI), to correct an unsafe condition 

for certain Airbus SAS Model A318 

series airplanes; Model A319–111, –112, 

–113, –114, –115, –131, –132, and –133 

airplanes; Model A320–211, –212, –214, 

–215, –216, –231, –232, and –233 

airplanes; and Model A321–111, –112, 

–131, –211, –212, –213, –231, and –232 

airplanes. EASA AD 2018–0289R1 

supersedes EASA AD 2018–0289 (which 

corresponds to FAA AD 2019–20–10). 

Model A320–215 airplanes are not 

certificated by the FAA and are not 

included on the U.S. type certificate 

data sheet; this AD therefore does not 

include those airplanes in the 

applicability. 

This proposed AD was prompted by 

a report that cracks were detected on 

FR16 and FR20 web holes and 

passenger door intercostal fitting holes 

at the door stop fitting locations. The 

FAA is proposing this AD to address 

cracking of the web holes at the door 

stop fittings, which could affect the 

structural integrity of the airplane. See 

the MCAI for additional background 

information. 

Explanation of Retained Requirements 

Although this proposed AD does not 

explicitly restate the requirements of AD 

2019–20–10, this proposed AD would 

retain all of the requirements of AD 

2019–20–10. Those requirements are 

referenced in EASA AD 2018–0289R1, 

which, in turn, is referenced in 

paragraph (g) of this proposed AD. 

Related Service Information Under 1 

CFR Part 51 

EASA AD 2018–0289R1 describes 

procedures for repetitive rototest 

inspections of the holes at the door stop 

fittings for any cracking 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. 

FAA’s Determination and Requirements 

of This Proposed AD 

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 the State 

of Design Authority, the FAA has been 

notified of the unsafe condition 

described in the MCAI referenced 

above. The FAA is proposing this AD 

because the FAA evaluated all pertinent 

information and determined an unsafe 

condition exists and is likely to exist or 

develop on other products of the same 

type design. 

Proposed AD Requirements 

This proposed AD would require 

accomplishing the actions specified in 

EASA AD 2018–0289R1 described 

previously, as incorporated by 

reference, except for any differences 

identified as exceptions in the 

regulatory text of this AD. 

Explanation of Required Compliance 

Information 

In the FAA’s ongoing efforts to 

improve the efficiency of the AD 

process, the FAA initially worked with 

Airbus and EASA to develop a process 

to use certain EASA ADs as the primary 

source of information for compliance 

with requirements for corresponding 

FAA ADs. The FAA has since 

coordinated with other manufacturers 

and civil aviation authorities (CAAs) to 

use this process. As a result, EASA AD 

2018–0289R1 will be incorporated by 

reference in the FAA final rule. This 

proposed AD would, therefore, require 

compliance with EASA AD 2018– 

0289R1 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 

the EASA AD 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 the EASA AD. Service 

information specified in EASA AD 

2018–0289R1 that is required for 

compliance with EASA AD 2018– 

0289R1 will be available on the internet 

at https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0501 after the FAA final 

rule is published. 

Costs of Compliance 

The FAA estimates that this proposed 

AD affects 1,528 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 

Retained actions from AD 2019–20–10 

(1,229 airplanes).

33 work-hours × $85 per hour = $2,805 ........ $0 $2,805 $3,447,345 

Inspections ...................................................... 33 work-hours × 85 per hour = 2,805 ............ 0 2,805 4,286,040 


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Federal Register / Vol. 86, No. 114 / Wednesday, June 16, 2021 / Proposed Rules 31991 

The FAA estimates the following 

costs to do any necessary on-condition 

action 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 this 

on-condition action: 

ESTIMATED COSTS OF ON-CONDITION ACTIONS

Labor cost Parts cost Cost per 

product 

51 work-hours × $85 per hour = $4,335 ................................................................................................................. $350 $4,685 

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: 

■ a. Removing Airworthiness Directive 

(AD) 2019–20–10, Amendment 39– 

19763 (84 FR 61526, November 13, 

2019), and 

■ b. Adding the following new AD: 

Airbus SAS: Docket No. FAA–2021–0501; 

Project Identifier MCAI–2021–00168–T. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by August 2, 

2021. 

(b) Affected ADs 

This AD replaces AD 2019–20–10, 

Amendment 39–19763 (84 FR 61526, 

November 13, 2019) (AD 2019–20–10). 

(c) Applicability 

This AD applies to Airbus SAS airplanes 

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

this AD, certificated in any category, as 

identified in European Union Aviation Safety 

Agency (EASA) AD 2018–0289R1, dated 

February 10, 2021 (EASA AD 2018–0289R1). 

(1) Model A318–111, –112, –121, and –122 

airplanes. 

(2) Model A319–111, –112, –113, –114, 

–115, –131, –132, and –133 airplanes. 

(3) Model A320–211, –212, –214, –216, 

–231, –232, and –233 airplanes. 

(4) Model A321–111, –112, –131, –211, 

–212, –213, –231, and –232 airplanes. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 53, Fuselage. 

(e) Reason 

This AD was prompted by a report that 

cracks were detected on frame (FR)16 and 

FR20 web holes and passenger door 

intercostal fitting holes at the door stop 

fitting locations, and a determination that a 

certain compliance time needs to be clarified. 

The FAA is issuing this AD to address 

cracking of the web holes at the door stop 

fittings, which could affect the structural 

integrity of the airplane. 

(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 2018–0289R1. 

(h) Exceptions to EASA AD 2018–0289R1 

(1) Where EASA AD 2018–0289R1 refers to 

its effective date, this AD requires using the 

effective date of this AD. 

(2) The ‘‘Remarks’’ section of EASA AD 

2018–0289R1 does not apply to this AD. 

(3) Where Table 1 of EASA AD 2018– 

0289R1 refers to a compliance time ‘‘after 31 

May 2017,’’ this AD requires using a 

compliance time after May 31, 2018 (the 

effective date of task 531103–01–1 in ‘‘ALS 

Part 2 rev. 6’’). 

(4) Where paragraphs (3) and (6) of EASA 

AD 2018–0289R1 refers to actions that have 

been done ‘‘in accordance with Airbus Repair 

Design Approval Sheet (RDAS),’’ this AD 

includes repair done ‘‘in accordance with a 

method approved by the Manager, Large 

Aircraft Section, International Validation 

Branch, FAA; or EASA; or Airbus SAS’s 

EASA Design Organization Approval (DOA). 

If approved by the DOA, the approval must 

include the DOA-authorized signature.’’ 

(i) Other FAA 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 

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 (j)(2) of this AD. 

Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov. 

(i) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the responsible Flight Standards Office. 

(ii) AMOCs approved previously for AD 

2019–20–10 are approved as AMOCs for the 

corresponding provisions of EASA AD 2018– 

0289R1 that are required by paragraph (g) of 

this AD, except for those airplanes having a 

compliance time specified in ‘‘Table 1: 


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31992 Federal Register / Vol. 86, No. 114 / Wednesday, June 16, 2021 / Proposed Rules 

Inspection Thresholds,’’ Row B, of EASA AD 

2018–0289R1. 

(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 

EASA; or Airbus SAS’s EASA Design 

Organization Approval (DOA). If approved by 

the DOA, the approval must include the 

DOA-authorized signature. 

(3) Required for Compliance (RC): For any 

service information referenced in EASA AD 

2018–0289R1 that contains RC procedures 

and tests: Except as required by paragraph 

(i)(2) of this AD, RC 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) Related Information 

(1) For information about EASA AD 2018– 

0289R1, contact EASA, Konrad-AdenauerUfer 3, 50668 Cologne, Germany; telephone 

+49 221 8999 000; email ADs@

easa.europa.eu; internet 

www.easa.europa.eu. You may find this 

EASA AD on the EASA website at https://

ad.easa.europa.eu. 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. This 

material may be found in the AD docket on 

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

by searching for and locating Docket No. 

FAA–2021–0501. 

(2) For more information about this AD, 

contact Sanjay Ralhan, Aerospace Engineer, 

Large Aircraft Section, International 

Validation Branch, FAA, 2200 South 216th 

St., Des Moines, WA 98198; telephone and 

fax 206–231–3223; email Sanjay.Ralhan@

faa.gov. 

Issued on June 10, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–12603 Filed 6–15–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0463; Project 

Identifier 2018–SW–050–AD] 

RIN 2120–AA64 

Airworthiness Directives; Leonardo 

S.p.a. Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for 

Leonardo S.p.a. (Leonardo) Model 

AB139 and AW139 helicopters with 

certain main rotor blades MRB installed. 

This proposed AD was prompted by a 

report of an in-flight loss of a main rotor 

blade (MRB) tip cap. This proposed AD 

would require inspecting the MRB tip 

cap for disbonding. 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 August 2, 2021. 

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 

https://www.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 between 9 a.m. and 5 p.m., 

Monday through Friday, except Federal 

holidays. 

For service information identified in 

this NPRM, contact Leonardo S.p.A. 

Helicopters, Emanuele Bufano, Head of 

Airworthiness, Viale G.Agusta 520, 

21017 C.Costa di Samarate (Va) Italy; 

telephone +39–0331–225074; fax +39– 

0331–229046; or at https://

customerportal.leonardocompany.com/ 

en-US/. You may view this 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. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0463 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 European Aviation Safety 

Agency (now European Union Aviation 

Safety Agency (EASA) AD, any 

comments received, and other 

information. The street address for 

Docket Operations is listed above. 

FOR FURTHER INFORMATION CONTACT: 

Bang Nguyen, Aerospace Engineer, 

Certification Section, Fort Worth ACO 

Branch, Compliance & Airworthiness 

Division, FAA, 10101 Hillwood Pkwy., 

Fort Worth, TX 76177; telephone (817) 

222–4973; email bang.nguyen@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–2021–0463; Project Identifier 

2018–SW–050–AD’’ 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 https://

www.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 


jbell on DSKJLSW7X2PROD with PROPOSALS