This section of the FEDERAL REGISTER

contains regulatory documents having general

applicability and legal effect, most of which

are keyed to and codified in the Code of

Federal Regulations, which is published under

50 titles pursuant to 44 U.S.C. 1510.

The Code of Federal Regulations is sold by

the Superintendent of Documents.

Rules and Regulations Federal Register

51265 

Vol. 86, No. 176 

Wednesday, September 15, 2021 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0368; Project 

Identifier MCAI–2021–00204–T; Amendment 

39–21705; AD 2021–18–04] 

RIN 2120–AA64 

Airworthiness Directives; Airbus SAS 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

Airbus SAS Model A318, A319, A320, 

and A321 series airplanes. This AD was 

prompted by reports of low halon 

concentration in the forward and aft 

cargo compartments due to air leakage 

through cargo door seals, and the 

certification of improved cargo door 

seals. This AD requires repetitive 

cleaning and greasing of affected cargo 

door seals; replacing the forward, aft, 

and bulk cargo compartment door seals 

with new seals; and installing a placard 

on the forward, aft, and cargo 

compartment doors; and for certain 

airplanes, implementing an operational 

limitation for certain routes, as specified 

in a European Union Aviation Safety 

Agency (EASA) 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 20, 

2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of October 20, 2021. 

ADDRESSES: For material 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– 

0368. 

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– 

0368; 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, 

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: 

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: 

Background 

EASA, which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA AD 2021–0049, 

dated February 18, 2021 (EASA AD 

2021–0049) (also referred to as the 

Mandatory Continuing Airworthiness 

Information, or the MCAI), to correct an 

unsafe condition for all Airbus SAS 

Model A318–111, –112, –121, and –122; 

A319–111, –112, –113, –114, –115, 

–131, –132, –133, –151N, –153N, and 

–171N; A320–211, –212, –214, –215, 

–216, –231, –232, –233, –251N, –252N, 

–253N, –271N, –272N, and –273N; and 

A321–111, –112, –131, –211, –212, 

–213, –231, –232, –251N, –252N, 

–253N, –271N, –272N, –251NX, 

–252NX, –253NX, –271NX, and –272NX 

airplanes. 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. 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to all Airbus SAS Model A318, 

A319, A320, and A321 series airplanes. 

The NPRM published in the Federal 

Register on May 17, 2021 (86 FR 26682). 

The NPRM was prompted by reports of 

low halon concentration in the forward 

and aft cargo compartments due to air 

leakage through cargo door seals, and 

the certification of improved cargo door 

seals. The NPRM proposed to require 

replacing the forward, aft, and bulk 

cargo compartment door seals with new 

seals; and installing a placard on the 

forward, aft, and cargo compartment 

doors; and for certain airplanes, 

implementing an operational limitation 

for certain routes, as specified in EASA 

AD 2021–0049. The NPRM specified 

that accomplishing the proposed AD 

would terminate all requirements (i.e., 

repetitive cleaning and greasing of 

affected cargo door seals) of AD 2020– 

16–01, Amendment 39–21185 (85 FR 

47013, August 4, 2020) (AD 2020–16– 

01) for the affected original equipment 

manufacturer (OEM) parts only (i.e., 

forward and aft cargo door seals having 

part number (p/n) D5237106020000, 

D5237106020200, D5237106020400, 

D5237300120000, or D5237300120200; 

and bulk cargo door seals having p/n 

D5237200220000 or D5237200220200). 

The FAA is issuing this AD to address 

low halon concentration, which could 

affect the fire extinguishing system 

efficiency in the cargo compartments 

and possibly result in failure of the 

system to contain a cargo compartment 

fire. See the MCAI for additional 

background information. 

Comments 

The FAA gave the public the 

opportunity to participate in developing 

this final rule. The following presents 

the comments received on the NPRM 

and the FAA’s response to each 

comment. 

Request To Change NPRM to a 

Supersedure of AD 2020–16–01 

Delta Air Lines (Delta) requested that 

the FAA change the NPRM from a new 

AD to a supersedure of AD 2020–16–01. 

Delta stated that a supersedure adds 

flexibility for operators and makes 

compliance to the rule simpler and 


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51266 Federal Register / Vol. 86, No. 176 / Wednesday, September 15, 2021 / Rules and Regulations 

cleaner for operators. Delta provided the 

following justification. 

• Delta noted paragraph (h)(2) of the 

proposed AD states that paragraphs (1) 

and (2) of EASA AD 2021–0049 do not 

apply and attributed the exception to 

AD 2020–16–01 not being superseded. 

Delta further stated that not having 

paragraph (2) of EASA AD 2021–0049 

within the requirements of the proposed 

AD is restrictive to operators because 

that paragraph allows using the aircraft 

maintenance manual (AMM) as an 

alternative to the cleaning and greasing 

requirements in paragraph (1) of EASA 

AD 2021–0049 (which corresponds to 

FAA AD 2020–16–01). Delta noted that 

paragraph (1) of EASA AD 2021–0049 

also includes a clarification to the 

requirements. 

• Delta also stated paragraph (h)(6) of 

the proposed AD specifies that 

paragraphs (5) and (6) of EASA AD 

2021–0049 do not apply and reasoned it 

is because they are related to the 

cleaning and greasing actions in 

paragraph (1) of EASA AD 2021–0049, 

which are not included in the proposed 

AD. Delta suggested that if the NPRM 

was changed to supersede AD 2020–16– 

01, then the exceptions in paragraphs 

(h)(2) and (h)(6) of the proposed AD 

would not be needed. Delta concluded 

the same actions would be 

accomplished and credit would be given 

for previously accomplished actions. 

• Delta stated that the proposed AD 

does not include the exception from 

paragraph (h)(3) of AD 2020–16–01 that 

adds forward and aft cargo door seals 

part number D5237106020400S, 

approved under parts manufacturer 

approval (PMA) PQ1715CE. Delta noted 

that if the proposed AD did remove the 

exceptions in paragraphs (h)(2) and 

(h)(6) of the proposed AD (e.g., if the 

NPRM did supersede AD 2020–16–01), 

then the PMA part could be included by 

added new exceptions. 

The FAA has determined that the 

OEM parts specified in AD 2020–16–01 

should be addressed in separate 

rulemaking and the FAA is also 

considering further rulemaking to 

address the corresponding PMA parts in 

a separate rulemaking action. 

The FAA does not agree to supersede 

AD 2020–16–01 with this AD. At the 

time the NPRM was developed, the FAA 

separated the rulemaking for OEM parts 

from the PMA parts since the FAA was 

informed of implementation issues with 

the adoption of a combined rulemaking 

(OEM parts and PMA parts) by the 

foreign civil aviation authorities. 

Therefore, as an interim action, the FAA 

has decided to issue separate ADs for 

the OEM parts and the PMA parts. The 

FAA is discussing how to address OEM 

and PMA parts in ADs for future 

rulemaking. However, in the interest of 

safety to address the unsafe condition 

on the OEM parts identified in this AD, 

the FAA has determined this AD cannot 

be delayed. 

The FAA does agree to retain the 

requirements of AD 2020–16–01 in this 

AD for the affected OEM parts identified 

in EASA AD 2021–0049. This will allow 

operators to comply with a single AD for 

those parts. The FAA cannot supersede 

AD 2020–16–01 in this AD as that 

would add requirements for the PMA 

part approved under PMA PQ1715CE 

that were not included in the NPRM. As 

discussed previously, the FAA is 

considering separate rulemaking for the 

PMA part approved under PMA 

PQ1715CE that replicates the provisions 

and requirements of this AD for those 

parts. 

The FAA has removed the exception 

specified in paragraph (h)(2) of the 

proposed AD that stated paragraphs (1) 

and (2) of EASA AD 2021–0049 do not 

apply. Therefore, this AD now includes 

the cleaning and greasing required by 

AD 2020–16–01 for the affected OEM 

parts and now allows for the provision 

specified in paragraph (2) of EASA AD 

2021–0049. The FAA has added an 

exception to paragraph (h)(2) of this AD 

to correlate the compliance time 

specified in paragraph (1) of EASA AD 

2021–0049 with the compliance time in 

AD 2020–16–01. Paragraph (h)(2) of this 

AD also explains that operators only 

need to show compliance with the 

cleaning and greasing done on or after 

the effective date of this AD for the 

actions required by paragraph (1) of 

EASA AD 2021–0049 for any of the 

affected OEM parts; operators will no 

longer need to show compliance with 

the requirements of AD 2020–16–01 for 

affected OEM parts. 

The FAA has also removed the 

exception specified in paragraph (h)(6) 

of the proposed AD that stated 

paragraphs (5) and (6) of EASA AD 

2021–0049 do not apply. Paragraph (5) 

of EASA AD 2021–0049 provides credit 

for paragraph (1) of EASA AD 2021– 

0049. Paragraph (6) of EASA AD 2021– 

0049 provides terminating action for 

paragraph (1) of EASA AD. The FAA 

has also clarified the terminating action 

statement in paragraph (i) of this AD. 

Request To Clarify Paragraph (h)(4) of 

the Proposed AD 

Delta asked if amending ‘‘the existing 

AFM and corresponding operational 

procedures’’ must be done by inserting 

a copy of EASA AD 2021–0049 into all 

applicable documentation or must a 

copy of the EASA AD and the FAA AD 

be inserted. The FAA infers Delta is 

seeking clarification on this 

requirement. 

The FAA notes that operators do not 

need to insert both a copy of the EASA 

AD and the FAA AD. Inserting a copy 

of only EASA AD 2020–0049 into the 

existing aircraft flight manual (AFM) 

and applicable corresponding 

operational procedures is one 

acceptable method to comply with this 

requirement. The FAA has revised 

paragraph (h)(4) of this AD accordingly. 

Request To Clarify Paragraph (h)(3) of 

the Proposed AD 

Delta requested that the FAA explain 

the intent of the exception in paragraph 

(h)(3) of the proposed AD, which states 

the requirement ‘‘to operate the aircraft 

accordingly’’ specified in paragraph (4) 

of EASA AD 2021–0049 does not apply 

because that action is already required 

by existing FAA operating regulations. 

Delta asked for confirmation that there 

are no procedural changes required for 

U.S. operators because the operating 

requirements are already being 

complied with. 

The FAA notes that intent of the 

exception in paragraph (h)(3) of this AD 

was explained in the preamble of the 

NPRM in ‘‘Proposed AD requirements.’’ 

To clarify, paragraph (4) of EASA AD 

2021–0049 requires flightcrew action to 

implement the AFM limitation that has 

been added to the existing AFM. FAA 

regulations require pilots to follow the 

procedures in the existing AFM 

including all updates. 14 CFR 91.9 

requires that any person operating a 

civil aircraft must comply with the 

operating limitations specified in the 

AFM. Therefore, operators already must 

comply with the operating requirements 

per the FAA regulations and an AD 

requirement ‘‘to operate the airplane 

accordingly’’ is not necessary. 

Conclusion 

The FAA reviewed the relevant data, 

considered the comments received, and 

determined that air safety and the 

public interest require adopting this 

final rule with the changes described 

previously and minor editorial changes. 

The FAA has determined that these 

minor changes: 

• Are consistent with the intent that 

was proposed in the NPRM for 

addressing the unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM. 

The FAA also determined that these 

changes will not increase the economic 

burden on any operator or increase the 

scope of this final rule. 


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Related Service Information Under 1 

CFR Part 51 

EASA AD 2021–0049 describes 

procedures for repetitive cleaning and 

greasing of affected cargo door seals; 

replacing the forward, aft, and bulk 

cargo compartment door seals with new 

seals; and installing a placard on the 

forward, aft, and bulk cargo 

compartment door. For certain 

airplanes, EASA AD 2021–0049 

describes procedures for implementing 

an operational limitation prohibiting 

flying the airplane over a route having 

a diversion time of more than 60 

minutes. 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 1,728 airplanes of U.S. registry. 

The FAA estimates the following costs 

to comply with this AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Action Labor cost Parts cost Cost per product Cost on U.S. 

operators 

Retained actions from AD 

2020-16-01.

1 work-hour × $85 per 

hour = $85.

$0 ...................................... $85 .................................... $146,880. 

New actions ....................... Up to 11 work-hours × $85 

per hour = Up to $935.

Up to $6,760 ..................... Up to $7,695 ..................... Up to $13,296,960. 

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. 

Adoption of 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: 

2021–18–04 Airbus SAS: Amendment 39– 

21705; Docket No. FAA–2021–0368; 

Project Identifier MCAI–2021–00204–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective October 20, 2021. 

(b) Affected ADs 

This AD affects AD 2020–16–01, 

Amendment 39–21185 (85 FR 47013, August 

4, 2020) (AD 2020–16–01). 

(c) Applicability 

This AD applies to all Airbus SAS 

airplanes specified in paragraphs (c)(1) 

through (4) of this AD, certificated in any 

category. 

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

airplanes. 

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

–115, –131, –132, –133, –151N, –153N, and 

–171N airplanes. 

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

–231, –232, –233, –251N, –252N, –253N, 

–271N, –272N, and –273N airplanes. 

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

–212, –213, –231, –232, –251N, –252N, 

–253N, –271N, –272N, –251NX, –252NX, 

–253NX, –271NX, and –272NX airplanes. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 26, Fire protection; 52, Doors. 

(e) Reason 

This AD was prompted by reports of low 

halon concentration in the forward and aft 

cargo compartments due to air leakage 

through cargo door seals, and the 

certification of improved cargo door seals. 

The FAA is issuing this AD to address low 

halon concentration, which could affect the 

fire extinguishing system efficiency in the 

cargo compartments and possibly result in 

failure of the system to contain a cargo 

compartment fire. 

(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 2021–0049, dated 

February 18, 2021 (EASA AD 2021–0049). 

(h) Exceptions to EASA AD 2021–0049 

(1) Where EASA AD 2021–0049 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

(2) Where paragraph (1) of EASA AD 2021– 

0049 refers to June 20, 2020 (the effective 

date of EASA AD 2020–0133, dated June 10, 

2020), this AD requires using August 19, 

2020 (the effective date of AD 2020–16–01). 

However, operators only need to show 

compliance with this AD for the cleaning and 

greasing actions required by paragraph (1) of 

EASA AD 2021–0049 that are accomplished 

on or after the effective date of this AD. As 

of the effective date of this AD, operators do 

not need to show compliance with the 

cleaning and greasing actions required by AD 

2020–16–01 for any cargo door seal having 

part number (p/n) D5237106020000, 

D5237106020200, D5237106020400, 

D5237300120000, or D5237300120200; or 


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any bulk cargo door seals having p/n 

D5237200220000 or D5237200220200, as 

those actions are now required by paragraph 

(1) of EASA AD 2021–0049. 

(3) Where paragraph (4) of EASA AD 2021– 

0049 specifies amending the aircraft flight 

manual (AFM) and ‘‘operating that aeroplane 

accordingly,’’ this AD does not include a 

requirement for ‘‘operating that aeroplane 

accordingly’’ as that action is already 

required by existing FAA operating 

regulations. 

(4) Paragraph (4) of EASA AD 2021–0049 

specifies amending ‘‘the Aircraft Flight 

Manual (AFM) of the aeroplane,’’ however, 

this AD requires amending ‘‘the existing 

AFM and applicable corresponding 

operational procedures.’’ Inserting a copy of 

EASA AD 2021–0049 into the existing AFM 

and applicable corresponding operational 

procedures is an acceptable method to 

comply with this requirement. 

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

2021–0049 does not apply to this AD. 

(i) Terminating Action for AD 2020–16–01 

Accomplishing the terminating action on 

an airplane, as specified in paragraph (6) of 

EASA AD 2021–0049, for the affected parts 

defined in EASA AD 2021–0049 terminates 

all requirements of AD 2020–16–01 for 

forward and aft cargo door seals having part 

number (p/n) D5237106020000, 

D5237106020200, D5237106020400, 

D5237300120000, or D5237300120200; and 

bulk cargo door seals having p/n 

D5237200220000 or D5237200220200 only. 

(j) 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 (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 

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 

2021–0049 that contains RC procedures and 

tests: Except as required by paragraph (j)(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. 

(k) Related Information 

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. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) 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) European Union Aviation Safety Agency 

(EASA) AD 2021–0049, dated February 18, 

2021. 

(ii) [Reserved] 

(3) For EASA AD 2021–0049, 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. 

(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. 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–2021–0368. 

(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 19, 2021. 

Gaetano A. Sciortino, 

Deputy Director for Strategic Initiatives, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2021–19816 Filed 9–14–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0698; Project 

Identifier MCAI–2021–00284–T; Amendment 

39–21703; AD 2021–18–02] 

RIN 2120–AA64 

Airworthiness Directives; Fokker 

Services B.V. Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

Fokker Services B.V. Model F28 Mark 

0070 and Mark 0100 airplanes. This AD 

was prompted by a report of a crack 

found on the forward pressure bulkhead 

web plate, at the edge of a bonded 

doubler. This AD requires a one-time 

inspection of the forward bulkhead for 

cracking, repair if necessary, and a 

report of inspection results, as specified 

in a European Union Aviation Safety 

Agency (EASA) AD, which is 

incorporated by reference. The FAA is 

issuing this AD to address the unsafe 

condition on these products. 

DATES: This AD becomes effective 

September 30, 2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of September 30, 2021. 

The FAA must receive comments on 

this AD by November 1, 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 the material incorporated by 

reference (IBR) in this AD, contact 

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