Federal Register / Vol. 86, No. 150 / Monday, August 9, 2021 / Proposed Rules 43437 

believed to be confidential deleted. DOE 

will make its own determination about 

the confidential status of the 

information and treat it according to its 

determination. 

It is DOE’s policy that all comments 

may be included in the public docket, 

without change and as received, 

including any personal information 

provided in the comments (except 

information deemed to be exempt from 

public disclosure). 

DOE considers public participation to 

be a very important part of the process 

for developing test procedures and 

energy conservation standards. DOE 

actively encourages the participation 

and interaction of the public during the 

comment period in each stage of this 

process. Interactions with and between 

members of the public provide a 

balanced discussion of the issues and 

assist DOE in the process. Anyone who 

wishes to be added to the DOE mailing 

list to receive future notices and 

information about this process should 

contact Appliance and Equipment 

Standards Program staff at (202) 287– 

1445 or via email at 

ApplianceStandardsQuestions@

ee.doe.gov. 

Signing Authority 

This document of the Department of 

Energy was signed on August 2, 2021, 

by Kelly Speakes-Backman, Principal 

Deputy Assistant Secretary and Acting 

Assistant Secretary for Energy Efficiency 

and Renewable Energy, pursuant to 

delegated authority from the Secretary 

of Energy. That document with the 

original signature and date is 

maintained by DOE. For administrative 

purposes only, and in compliance with 

requirements of the Office of the Federal 

Register, the undersigned DOE Federal 

Register Liaison Officer has been 

authorized to sign and submit the 

document in electronic format for 

publication, as an official document of 

the Department of Energy. This 

administrative process in no way alters 

the legal effect of this document upon 

publication in the Federal Register. 

Signed in Washington, DC, on August 4, 

2021. 

Treena V. Garrett, 

Federal Register Liaison Officer, U.S. 

Department of Energy. 

[FR Doc. 2021–16936 Filed 8–6–21; 8:45 am] 

BILLING CODE 6450–01–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0621; Project 

Identifier MCAI–2020–01517–T] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Defense and Space S.A. (Formerly 

Known as Construcciones 

Aeronauticas, S.A.) Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to 

supersede Airworthiness Directive (AD) 

2018–25–16, which applies to certain 

Airbus Defense and Space S.A. Model 

CN–235, CN–235–200, and CN–235–300 

airplanes. AD 2018–25–16 requires 

revising the existing maintenance or 

inspection program, as applicable, to 

incorporate new or more restrictive 

airworthiness limitations. Since the 

FAA issued AD 2018–25–16, the FAA 

has determined that additional new or 

more restrictive airworthiness 

limitations, including inspections for 

discrepancies (cracking) of certain 

structural elements, are necessary. This 

proposed AD would require revising the 

existing maintenance or inspection 

program, as applicable, to incorporate 

new or more restrictive airworthiness 

limitations, and repetitive inspections 

for discrepancies (cracking) of certain 

structural elements and corrective 

actions, 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 EASA material that will be 

incorporated by reference (IBR) in this 

AD, 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 

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– 

0621. 

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– 

0621; 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: 

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. 

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–2021–0621; Project Identifier 

MCAI–2020–01517–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 


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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 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. Any 

commentary that the FAA receives 

which is not specifically designated as 

CBI will be placed in the public docket 

for this rulemaking. 

Background 

The FAA issued AD 2018–25–16, 

Amendment 39–19527 (83 FR 64441, 

December 17, 2018) (AD 2018–25–16), 

for certain Airbus Defense and Space 

S.A. Model CN–235, CN–235–200, and 

CN–235–300 airplanes. AD 2018–25–16 

requires revising the existing 

maintenance or inspection program, as 

applicable, to incorporate new or more 

restrictive airworthiness limitations. 

The FAA issued AD 2018–25–16 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. 

Actions Since AD 2018–25–16 Was 

Issued 

Since the FAA issued AD 2018–25– 

16, the FAA has determined that new or 

more restrictive airworthiness 

limitations, including inspections for 

discrepancies (cracking) of certain 

structural elements, are necessary. 

EASA, which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA AD 2020–0251, 

dated November 11, 2020 (EASA AD 

2020–0251) (also referred to as the 

Mandatory Continuing Airworthiness 

Information, or the MCAI), to correct an 

unsafe condition for all Airbus Defense 

and Space S.A. Model CN–235, CN– 

235–100, CN–235–200, and CN–235– 

300 airplanes. EASA AD 2020–0251 

states that it requires repetitive 

inspections of certain structural 

elements, which are currently specified 

in an alert operators transmission 

(AOT). EASA AD 2020–0251 further 

states that those inspections will be 

added to the airworthiness limitations 

document when that document is next 

revised. Airplanes with an original 

airworthiness certificate or original 

export certificate of airworthiness 

issued after March 20, 2018, must 

comply with the airworthiness 

limitations specified as part of the 

approved type design and referenced on 

the type certificate data sheet; this AD 

therefore does not include those 

airplanes in the requirement to revise 

the existing maintenance or inspection 

program. 

This proposed 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 proposing 

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. See the MCAI for 

additional background information. 

Related Service Information Under 1 

CFR Part 51 

EASA AD 2020–0251 describes new 

or more restrictive airworthiness 

limitations for airplane systems, 

structural inspections, safe life 

structural items, and safe life system 

items. EASA AD 2020–0251 also 

describes repetitive inspections for 

discrepancies (cracking) of certain 

structural elements and corrective 

action (repair). 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 and service 

information 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, and repetitive 

inspections for discrepancies (cracking) 

of certain structural elements and 

corrective actions, which are specified 

in EASA AD 2020–0251 described 

previously, as proposed for 

incorporation by reference. Any 

differences with EASA AD 2020–0251 

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 (AMOC) 

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 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 

2020–0251 will be incorporated by 

reference in the FAA final rule. This 

proposed AD would, therefore, require 

compliance with EASA AD 2020–0251 

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 


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Federal Register / Vol. 86, No. 150 / Monday, August 9, 2021 / Proposed Rules 43439 

‘‘Required Action(s) and Compliance 

Time(s)’’ in the EASA AD. Service 

information specified in EASA AD 

2020–0251 that is required for 

compliance with EASA AD 2020–0251 

will be available on the internet at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0621 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 

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 8 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. The FAA estimates the total 

cost per operator for the new proposed 

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

$85 per work-hour). 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

New proposed inspections .............................. 60 work-hours × $85 per hour = $5,100 ........ $0 $5,100 $40,800 

The FAA has received no definitive 

data on which to base the cost estimates 

for the on-condition actions specified in 

this proposed AD. 

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) 2018–25–16, Amendment 39– 

19527 (83 FR 64441, December 17, 

2018); and 

■ b. Adding the following new AD: 

Airbus Defense and Space S.A. (Formerly 

Known as Construcciones Aeronauticas, 

S.A.): Docket No. FAA–2021–0621; 

Project Identifier MCAI–2020–01517–T. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by September 

23, 2021. 

(b) Affected ADs 

This AD replaces AD 2018–25–16, 

Amendment 39–19527 (83 FR 64441, 

December 17, 2018) (AD 2018–25–16). 

(c) Applicability 

This AD applies to all Airbus Defense and 

Space S.A. (formerly known as 

Construcciones Aeronauticas, S.A.) Model 

CN–235, CN–235–100, CN–235–200, and 

CN–235–300 airplanes, certificated in any 

category, with an original airworthiness 

certificate or original export certificate of 

airworthiness issued on or before March 20, 

2018. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 05, Time Limits/Maintenance 

Checks; and 53, Fuselage. 


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(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 


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