43440 Federal Register / Vol. 86, No. 150 / Monday, August 9, 2021 / Proposed Rules 

(e) Reason 

This AD was prompted by a determination 

that new or more restrictive airworthiness 

limitations, including inspections for 

discrepancies (cracking) of certain structural 

elements, are necessary. The FAA is issuing 

this AD to address fatigue cracking, damage, 

and corrosion in principal structural 

elements; such fatigue cracking, damage, and 

corrosion could result in reduced structural 

integrity of the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

Except as specified in paragraph (h) of this 

AD: Comply with all required actions and 

compliance times specified in, and in 

accordance with, European Union Aviation 

Safety Agency (EASA) AD 2020–0251, dated 

November 11, 2020 (EASA AD 2020–0251). 

(h) Exceptions to EASA AD 2020–0251 

(1) Where EASA AD 2020–0251 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

(2) The requirements specified in 

paragraph (4) of EASA AD 2020–0251 do not 

apply to this AD. 

(3) Where paragraph (5) of EASA AD 2020– 

0251 specifies actions if discrepancies are 

found while accomplishing any task 

‘‘required by paragraph (1), (2), (3) or (4) of 

this [EASA] AD,’’ this AD requires actions if 

discrepancies are found while accomplishing 

any task ‘‘required by paragraph (1), (2), or 

(3) of EASA AD 2020–0251.’’ 

(4) Where paragraph (5) of EASA AD 2020– 

0251 specifies actions ‘‘in case of finding 

discrepancies,’’ for this AD, discrepancies 

include fatigue cracking. 

(5) Paragraph (6) of EASA AD 2020–0251 

specifies revising ‘‘the approved AMP’’ 

within 12 months after its effective date, but 

this AD requires, for airplanes with an 

original airworthiness certificate or original 

export certificate of airworthiness issued on 

or before March 20, 2018, revising the 

existing maintenance or inspection program, 

as applicable, to incorporate the ‘‘limitations, 

tasks and associated thresholds and 

intervals’’ specified in paragraph (6) of EASA 

AD 2020–0251 within 90 days after the 

effective date of this AD. 

(6) For airplanes with an original 

airworthiness certificate or original export 

certificate of airworthiness issued on or 

before March 20, 2018, the initial compliance 

time for doing the tasks specified in 

paragraph (6) of EASA AD 2020–0251 is at 

the applicable ‘‘thresholds’’ as incorporated 

by the requirements of paragraph (6) of EASA 

AD 2020–0251, or within 90 days after the 

effective date of this AD, whichever occurs 

later. 

(7) The provisions specified in paragraphs 

(7) and (8) of EASA AD 2020–0251 do not 

apply to this AD. 

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

2020–0251 does not apply to this AD. 

(i) New Provisions for Alternative Actions 

and Intervals 

After the existing maintenance or 

inspection program has been revised as 

required by paragraph (g) of this AD, no 

alternative actions (e.g., inspections) and 

intervals are allowed unless they are 

approved as specified in the provisions of the 

‘‘Ref. Publications’’ section of EASA AD 

2020–0251. 

(j) No Reporting Requirement 

Although the service information 

referenced in EASA AD 2020–0251 specifies 

to submit certain information to the 

manufacturer, this AD does not include that 

requirement. 

(k) 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 (l)(2) 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 

EASA; or Airbus Defense and Space S.A.’s 

EASA Design Organization Approval (DOA). 

If approved by the DOA, the approval must 

include the DOA-authorized signature. 

(l) Related Information 

(1) For EASA AD 2020–0251, 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 

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–2021–0621. 

(2) For more information about this AD, 

contact Shahram Daneshmandi, Aerospace 

Engineer, Large Aircraft Section, 

International Validation Branch, FAA, 2200 

South 216th St., Des Moines, WA 98198; 

telephone and fax 206–231–3220; email 

shahram.daneshmandi@faa.gov. 

Issued on July 30, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–16686 Filed 8–6–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0617; Project 

Identifier MCAI–2021–00385–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 adopt a 

new airworthiness directive (AD) for all 

Airbus SAS Model A300 B4–600, B4– 

600R, and F4–600R series airplanes, and 

Model A300 C4–605R Variant F 

airplanes (collectively called Model 

A300–600 series airplanes). This 

proposed AD was prompted by a 

determination that new or more 

restrictive airworthiness limitations are 

necessary. This proposed AD would 

require revising the existing 

maintenance or inspection program, as 

applicable, to incorporate new or more 

restrictive airworthiness limitations, 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 September 23, 

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 


lotter on DSK11XQN23PROD with PROPOSALS1
Federal Register / Vol. 86, No. 150 / Monday, August 9, 2021 / Proposed Rules 43441 

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– 

0617. 

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– 

0617; 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: Dan 

Rodina, Aerospace Engineer, Large 

Aircraft Section, International 

Validation Branch, FAA, 2200 South 

216th St., Des Moines, WA 98198; 

telephone and fax 206–231–3225; email 

dan.rodina@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–2021–0617; Project Identifier 

MCAI–2021–00385–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 Dan Rodina, 

Aerospace Engineer, Large Aircraft 

Section, International Validation 

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

Moines, WA 98198; telephone and fax 

206–231–3225; email dan.rodina@

faa.gov. Any commentary that the FAA 

receives which is not specifically 

designated as CBI will be placed in the 

public docket for this rulemaking. 

Background 

EASA, which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA AD 2021–0093, 

dated March 30, 2021 (EASA AD 2021– 

0093) (also referred to as the Mandatory 

Continuing Airworthiness Information, 

or the MCAI), to correct an unsafe 

condition for all Airbus SAS Model 

A300–600 series airplanes. 

EASA AD 2021–0093 specifies that it 

requires tasks (limitations) already 

required by EASA AD 2019–0090 

(which corresponds to FAA AD 2019– 

21–01, Amendment 39–19767 (84 FR 

56935, October 24, 2019) (AD 2019–21– 

01)) and EASA AD 2020–0111R2 (which 

corresponds to FAA AD 2020–23–11, 

Amendment 39–21327 (85 FR 75838, 

November 27, 2020) (AD 2020–23–11)) 

and invalidates prior instructions for 

those tasks. This proposed AD would, 

for AD 2019–21–01 and AD 2020–23– 

11, terminate the limitation for the tasks 

identified in the service information 

referred to in EASA AD 2021–0093 

only. 

This proposed AD was prompted by 

a determination that new or more 

restrictive airworthiness limitations are 

necessary. The FAA is proposing this 

AD to address fatigue cracking, damage, 

and corrosion in principal structural 

elements, which could result in reduced 

structural integrity of the fuselage. See 

the MCAI for additional background 

information. 

Related Service Information Under 1 

CFR Part 51 

EASA AD 2021–0093 describes new 

or more restrictive airworthiness 

limitations for airplane structures and 

safe life limits. 

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 has 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 

revising the existing maintenance or 

inspection program, as applicable, to 

incorporate new or more restrictive 

airworthiness limitations, which are 

specified in EASA AD 2021–0093 

described previously, as incorporated by 

reference. Any differences with EASA 

AD 2021–0093 are identified as 

exceptions in the regulatory text of this 

AD. 

This proposed AD would require 

revisions to certain operator 

maintenance documents to include new 

actions (e.g., inspections). Compliance 

with these actions is required by 14 CFR 

91.403(c). For airplanes that have been 

previously modified, altered, or repaired 

in the areas addressed by this proposed 

AD, the operator may not be able to 

accomplish the actions described in the 

revisions. In this situation, to comply 

with 14 CFR 91.403(c), the operator 

must request approval for an alternative 

method of compliance according to 

paragraph (k)(1) of this proposed AD. 

Explanation of Required Compliance 

Information 

In the FAA’s ongoing efforts to 

improve the efficiency of the AD 

process, the FAA developed a process to 

use some civil aviation authority (CAA) 

ADs as the primary source of 

information for compliance with 

requirements for corresponding FAA 


lotter on DSK11XQN23PROD with PROPOSALS1
43442 Federal Register / Vol. 86, No. 150 / Monday, August 9, 2021 / Proposed Rules 

ADs. The FAA has been coordinating 

this process with manufacturers and 

CAAs. As a result, the FAA proposes to 

incorporate EASA AD 2021–0093 by 

reference in the FAA final rule. This 

proposed AD would, therefore, require 

compliance with EASA AD 2021–0093 

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 

EASA AD 2021–0093 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 EASA AD 2021–0093. 

Service information required by EASA 

AD 2021–0093 for compliance will be 

available at https://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2021–0617 after the FAA final 

rule is published. 

Airworthiness Limitation ADs Using 

the New Process 

The FAA’s process of incorporating 

by reference MCAI ADs as the primary 

source of information for compliance 

with corresponding FAA ADs has been 

limited to certain MCAI ADs (primarily 

those with service bulletins as the 

primary source of information for 

accomplishing the actions required by 

the FAA AD). However, the FAA is now 

expanding the process to include MCAI 

ADs that require a change to 

airworthiness limitation documents, 

such as airworthiness limitation 

sections. 

For these ADs that incorporate by 

reference an MCAI AD that changes 

airworthiness limitations, the FAA 

requirements are unchanged. Operators 

must revise the existing maintenance or 

inspection program, as applicable, to 

incorporate the information specified in 

the new airworthiness limitation 

document. The airworthiness 

limitations must be followed according 

to 14 CFR 91.403(c) and 91.409(e). 

The previous format of the 

airworthiness limitation ADs included a 

paragraph that specified that no 

alternative actions (e.g., inspections) or 

intervals may be used unless the actions 

and intervals are approved as an 

alternative method of compliance 

(AMOC) in accordance with the 

procedures specified in the AMOCs 

paragraph under ‘‘Other FAA 

Provisions.’’ This new format includes a 

‘‘New Provisions for Alternative Actions 

and Intervals’’ paragraph that does not 

specifically refer to AMOCs, but 

operators may still request an AMOC to 

use an alternative action or interval. 

Costs of Compliance 

The FAA estimates that this proposed 

AD affects 118 airplanes of U.S. registry. 

The FAA estimates the following costs 

to comply with this proposed AD: 

The FAA has determined that revising 

the existing maintenance or inspection 

program takes an average of 90 workhours per operator, although the agency 

recognizes that this number may vary 

from operator to operator. Since 

operators incorporate maintenance or 

inspection program changes for their 

affected fleet(s), the FAA has 

determined that a per-operator estimate 

is more accurate than a per-airplane 

estimate. Therefore, the agency 

estimates the average total cost per 

operator to be $7,650 (90 work-hours × 

$85 per work-hour). 

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 has 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: 

Airbus SAS: Docket No. FAA–2021–0617; 

Project Identifier MCAI–2021–00385–T. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by September 

23, 2021. 

(b) Affected ADs 

This AD affects AD 2019–21–01, 

Amendment 39–19767 (84 FR 56935, October 

24, 2019) (AD 2019–21–01) and AD 2020–23– 

11, Amendment 39–21327 (85 FR 75838, 

November 27, 2020) (AD 2020–23–11). 

(c) Applicability 

This AD applies all Airbus SAS Model 

A300 B4–601, B4–603, B4–620, B4–622, B4– 

605R, B4–622R, F4–605R, F4–622R, and C4– 

605R Variant F airplanes, certificated in any 

category. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 05, Time Limits/Maintenance 

Checks. 

(e) Reason 

This AD was prompted by a determination 

that new or more restrictive airworthiness 

limitations are necessary. The FAA is issuing 

this AD to address fatigue cracking, damage, 

and corrosion in principal structural 

elements, which could result in reduced 

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, European Union Aviation 

Safety Agency (EASA) AD 2021–0093, dated 

March 30, 2021 (EASA AD 2021–0093). 


lotter on DSK11XQN23PROD with PROPOSALS1
Federal Register / Vol. 86, No. 150 / Monday, August 9, 2021 / Proposed Rules 43443 

(h) Exceptions to EASA AD 2021–0093 

(1) Where EASA AD 2021–0093 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

(2) The requirements specified in 

paragraphs (1) and (2) of EASA AD 2021– 

0093 do not apply to this AD. 

(3) Paragraph (3) of EASA AD 2021–0093 

specifies revising ‘‘the approved AMP’’ 

within 12 months after its effective date, but 

this AD requires revising the existing 

maintenance or inspection program, as 

applicable within 90 days after the effective 

date of this AD. 

(4) The initial compliance time for doing 

the tasks specified in paragraph (3) of EASA 

2021–0093 is at the applicable ‘‘thresholds’’ 

as incorporated by the requirements of 

paragraph (3) of EASA AD 2021–0093, or 

within 90 days after the effective date of this 

AD, whichever occurs later. 

(5) The provisions specified in paragraphs 

(4) of EASA AD 2021–0093 do not apply to 

this AD. 

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

2021–0093 does not apply to this AD. 

(i) Provisions for Alternative Actions and 

Intervals 

After the existing maintenance or 

inspection program has been revised as 

required by paragraph (g) of this AD, no 

alternative actions (e.g., inspections) or 

intervals are allowed unless they are 

approved as specified in the provisions of the 

‘‘Ref. Publications’’ section of EASA AD 

2021–0093. 

(j) Terminating Action for Certain 

Requirements of AD 2019–21–01 and AD 

2020–23–11 

(1) Accomplishing the actions required by 

this AD terminates the corresponding 

requirements of AD 2019–21–01, for the tasks 

identified in the service information referred 

to in EASA AD 2021–0093 only. 

(2) Accomplishing the actions required by 

this AD terminates the corresponding 

requirements of AD 2020–23–11, for the tasks 

identified in the service information referred 

to in EASA AD 2021–0093 only. 

(k) 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 local Flight Standards 

District 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 (l)(2) 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 local flight 

standards district office/certificate holding 

district 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 

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): Except 

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

any service information 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. 

(l) Related Information 

(1) For information about EASA AD 2021– 

0093, 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 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–2021–0617. 

(2) For more information about this AD, 

contact Dan Rodina, Aerospace Engineer, 

Large Aircraft Section, International 

Validation Branch, FAA, 2200 South 216th 

St., Des Moines, WA 98198; telephone and 

fax 206–231–3225; email dan.rodina@

faa.gov. 

Issued on July 29, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–16559 Filed 8–6–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0571; Project 

Identifier AD–2021–00101–T] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for 

certain The Boeing Company Model 

787–8, 787–9, and 787–10 airplanes. 

This proposed AD was prompted by 

reports of damage to the thrust reverser 

(TR) translating sleeve secondary sliders 

due to contact between the slider and 

the slider track liner. This damage was 

only found on TR sleeves installed on 

certain engines. This proposed AD 

would require determining the serial 

number of the TR and performing 

applicable on-condition actions; or 

replacing the TR with a serviceable TR. 

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 September 23, 

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 service information identified in 

this NPRM, contact Boeing Commercial 

Airplanes, Attention: Contractual & Data 

Services (C&DS), 2600 Westminster 

Blvd., MC 110–SK57, Seal Beach, CA 

90740–5600; telephone 562–797–1717; 

internet https://

www.myboeingfleet.com. You may view 

this referenced service information 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 on the internet 

at https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0571. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0571; 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 


lotter on DSK11XQN23PROD with PROPOSALS1