7710 Federal Register / Vol. 87, No. 28 / Thursday, February 10, 2022 / Rules and Regulations 

(2) Refer to European Union Aviation 

Safety Agency (EASA) AD 2019–0218, dated 

September 3, 2019, for more information. 

You may examine the EASA AD in the AD 

docket at https://www.regulations.gov by 

searching for and locating Docket No. FAA– 

2021–0952. 

(k) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) Diamond Aircraft Mandatory Service 

Bulletin MSB 42–138/MSB 42NG–080, dated 

July 1, 2019 (issued as one document) 

published with Diamond Aircraft Work 

Instruction WI MSB 42–138/WI–MSB 42NG– 

080, Revision 0, dated July 1, 2019 (issued as 

one document) attached. 

(ii) [Reserved] 

(3) For service information identified in 

this AD, contact Diamond Aircraft Industries 

GmbH, N.A. Otto-Stra+e 5, A–2700 Wiener 

Neustadt, Austria; phone: +43 2622 26700; 

fax: +43 2622 26780; email: office@diamondair.at; website: https://

www.diamondaircraft.com. 

(4) You may view this service information 

at FAA, Airworthiness Products Section, 

Operational Safety Branch, 901 Locust, 

Kansas City, MO 64106. For information on 

the availability of this material at the FAA, 

call (817) 222–5110. 

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, 

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

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

ibr-locations.html. 

Issued on January 18, 2022. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–02716 Filed 2–9–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0657; Project 

Identifier MCAI–2021–00478–T; Amendment 

39–21927; AD 2022–03–10] 

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 certain 

Airbus SAS Model A350–941 and –1041 

airplanes. This AD was prompted by a 

report indicating that during 

maintenance, a fuse pin retaining the 

main landing gear support structure 

(MLGSS) was found incorrectly engaged 

in the trunnion block and improperly 

secured with the associated retaining 

pin, due to incorrect installation during 

assembly. This AD requires inspecting 

the fuse pins and associated retaining 

pins of the MLGSS for such 

discrepancies, and corrective action if 

necessary, 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 March 17, 

2022. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of March 17, 2022. 

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– 

0657. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0657; or in person at Docket 

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

Monday through Friday, except Federal 

holidays. The AD docket contains this 

final rule, the mandatory continuing 

airworthiness information (MCAI), any 

comments received, and other 

information. The address for Docket 

Operations is U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE, 

Washington, DC 20590. 

FOR FURTHER INFORMATION CONTACT: 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 

nicholas.wilson@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

EASA, which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA AD 2021–0112, 

dated April 22, 2021 (EASA AD 2021– 

0112), to correct an unsafe condition for 

certain Airbus SAS Model A350–941 

and –1041 airplanes. 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to certain Airbus SAS Model 

A350–941 and –1041 airplanes. The 

NPRM published in the Federal 

Register on August 12, 2021 (86 FR 

44319). The NPRM was prompted by a 

report indicating that during 

maintenance, a fuse pin retaining the 

MLGSS was found incorrectly engaged 

in the trunnion block and improperly 

secured with the associated retaining 

pin; this was due to incorrect 

installation during assembly. The NPRM 

proposed to require inspecting the fuse 

pins and associated retaining pins of the 

MLGSS for such discrepancies, and 

corrective action if necessary, as 

specified in EASA AD 2021–0112. 

The FAA is issuing this AD to address 

incorrect fuse pin installations, which 

could lead to premature failure of the 

retaining pin and subsequent fuse pin 

migration and disconnection, and could 

ultimately lead to main landing gear 

collapse and possible damage to the 

airplane. See the MCAI for additional 

background information. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received comments from the 

Air Line Pilots Association, 

International (ALPA), who supported 

the NPRM without change. 

The FAA received additional 

comments from Delta Air Lines (DAL). 

The following presents the comments 

received on the NPRM and the FAA’s 

response to each comment. 

Request To Define an Affected Part 

DAL asked that the proposed AD 

include a statement that an ‘‘affected 

part’’ includes parts that are improperly 

engaged or incorrectly secured. DAL 

stated that the purpose of the inspection 

in EASA AD 2021–0112 is to inspect the 

affected parts for any discrepant 

conditions, in accordance with the 

instructions specified in Airbus Alert 

Operations Transmission (AOT) 

A57P016–21, dated April 1, 2021, 

which includes any incorrectly installed 

or missing trunnion block fuse pins for 

applicable Airbus SAS Model A350–941 

and –1041 airplanes. DAL added that if, 


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Federal Register / Vol. 87, No. 28 / Thursday, February 10, 2022 / Rules and Regulations 7711 

during accomplishment of this AOT, no 

discrepant conditions are found, then 

no further action is required. DAL noted 

that the MCAI’s definition of ‘‘affected 

part’’ implies that the area will become 

an AD-related area for the rest of the life 

of the aircraft. Delta stated that it has 

added ‘‘AD affected no deviations’’ 

language to all AD-related aircraft 

maintenance manual (AMM) and 

illustrated parts catalog (IPC) areas. 

However, if there are no findings during 

the inspection, the area should revert 

back to a normal post-production nonAD area, and the language should not be 

added to the related AMM and IPC at 

every revision for the life of the aircraft. 

The FAA does not agree with the 

commenter’s request to refine the 

MCAI’s definition of an affected part 

because this AD requires a one-time 

inspection only and that action is not 

effective for the life of the airplane. 

Correctly installed parts do not continue 

to be affected parts. Therefore, the FAA 

has not changed this AD in this regard. 

Request To Clarify ICA Requirement 

DAL asked that the proposed AD 

clarify that the instructions for 

continued airworthiness (ICAs) are 

required per Section E of the repair 

instructions specified in Airbus AOT 

A57P016–21, dated April 1, 2021. DAL 

stated that per the inspection 

instructions detailed in the AOT, if 

there is a discrepant condition found 

during accomplishment of the 

inspection, all operators are to follow 

the referenced repair instructions to 

replace all six fuse pins within the 

trunnion block of the MLGSS. DAL 

noted that after the repair is 

accomplished, the ICAs require again 

inspecting the trunnion block for 

damage and replacing all six fuse pins 

at 14,400 flight cycles or 60,000 flight 

hours (in contrast to the current life 

limit for the fuse pins of 36,000 flight 

cycles or 150,000 flight hours). 

The FAA acknowledges the 

commenter’s request to clarify whether 

the ICA requirements in Section E of the 

repair instructions are required by this 

AD. In certain circumstances, the NPRM 

proposed corrective actions that include 

repair instructions for Model A350–900 

airplanes (R57V–40112) and Model 

A350–1000 airplanes (R57V–40113), as 

specified in RC (required for 

compliance) paragraph 4.2.3 of Airbus 

AOT A57P016–21, dated April 1, 2021. 

However, the NPRM, EASA AD 2021– 

0112, and AOT did not expressly state 

what revision level of the repair 

instructions are mandatory. ICA 

requirements were added to a later 

revision of the repair instructions. By 

not mandating a specific revision of the 

repair instructions, operators can use 

any revision level to satisfy the 

requirements of this AD. Whichever 

revision level an operator chooses, the 

operator must use that revision level in 

its entirety. The FAA encourages 

affected operators to utilize the most 

current ICA for their respective aircraft 

condition. No changes have been made 

to this AD in this regard. 

Conclusion 

The FAA reviewed the relevant data, 

considered the comments received, and 

determined that air safety requires 

adopting this AD as proposed. Except 

for minor editorial changes, this AD is 

adopted as proposed in the NPRM. 

None of the changes will increase the 

economic burden on any operator. 

Accordingly, the FAA is issuing this AD 

to address the unsafe condition on these 

products. 

Related Service Information Under 1 

CFR Part 51 

EASA AD 2021–0112 describes 

procedures for a detailed inspection for 

discrepancies (missing or migrated fuse 

pins, and fuse pins improperly secured 

with the associated retaining pin) in the 

left- and right-hand sides of the MLGSS 

trunnion block. The service information 

also describes procedures for corrective 

action (including replacement of 

discrepant fuse pins and the main 

landing gear forward pintle assembly). 

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 17 airplanes of U.S. registry. The 

FAA estimates the following costs to 

comply with this AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

1 work-hour × $85 per hour = $85 .............................................................................................. $0 $85 $1,445 

The FAA estimates the following 

costs to do any necessary on-condition 

actions 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 these 

on-condition actions: 

ESTIMATED COSTS OF ON-CONDITION ACTIONS

Labor cost Parts cost Cost per product 

Up to 30 work-hours × $85 per hour = Up to $2,550 .......................................... Up to $4,410 ......................................... Up to $6,960. 

According to the manufacturer, some 

or all of the costs of this AD may be 

covered under warranty, thereby 

reducing the cost impact on affected 

operators. The FAA does not control 

warranty coverage for affected operators. 

As a result, the FAA has included all 

known costs in the cost estimate. 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. Subtitle VII: 

Aviation Programs, describes in more 

detail the scope of the Agency’s 

authority. 

The FAA is issuing this rulemaking 

under the authority described in 

Subtitle VII, Part A, Subpart III, Section 

44701: General requirements. Under 

that section, Congress charges the FAA 

with promoting safe flight of civil 

aircraft in air commerce by prescribing 

regulations for practices, methods, and 

procedures the Administrator finds 


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7712 Federal Register / Vol. 87, No. 28 / Thursday, February 10, 2022 / Rules and Regulations 

necessary for safety in air commerce. 

This regulation is within the scope of 

that authority because it addresses an 

unsafe condition that is likely to exist or 

develop on products identified in this 

rulemaking action. 

Regulatory Findings 

This AD will not have federalism 

implications under Executive Order 

13132. This AD will not have a 

substantial direct effect on the States, on 

the relationship between the national 

government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Will not affect intrastate aviation 

in Alaska, and 

(3) Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 14 CFR part 39 as 

follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

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

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

2022–03–10 Airbus SAS: Amendment 39– 

21927; Docket No. FAA–2021–0657; 

Project Identifier MCAI–2021–00478–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective March 17, 2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Airbus SAS Model 

A350–941 and –1041 airplanes, certificated 

in any category, as identified in European 

Union Aviation Safety Agency (EASA) AD 

2021–0112, dated April 22, 2021 (EASA AD 

2021–0112). 

(d) Subject 

Air Transport Association (ATA) of 

America Code 57, Wings. 

(e) Reason 

This AD was prompted by a report 

indicating that during maintenance, a fuse 

pin retaining the main landing gear support 

structure (MLGSS) was found incorrectly 

engaged in the trunnion block and 

improperly secured with the associated 

retaining pin, due to incorrect installation 

during assembly. The FAA is issuing this AD 

to address incorrect fuse pin installations, 

which could lead to premature failure of the 

retaining pin and subsequent fuse pin 

migration and disconnection, and could 

ultimately lead to main landing gear collapse 

and possible damage to 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 2021–0112. 

(h) Exceptions to EASA AD 2021–0112 

(1) Where EASA AD 2021–0112 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

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

0112 specifies contacting Airbus for 

approved instructions for corrective actions 

for certain conditions, those corrective 

actions must be done using a method 

approved in accordance with the procedures 

specified in paragraph (j)(2) of this AD. 

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

2021–0112 does not apply to this AD. 

(i) No Reporting Requirement 

Although the service information 

referenced in EASA AD 2021–0112 specifies 

to submit certain information to the 

manufacturer, this AD does not include that 

requirement. 

(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): 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. 

(k) Related Information 

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 nicholas.wilson@

faa.gov. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless this AD specifies otherwise. 

(i) European Union Aviation Safety Agency 

(EASA) AD 2021–0112, dated April 22, 2021. 

(ii) [Reserved] 

(3) For EASA AD 2021–0112, 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. 

(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 January 21, 2022. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–02756 Filed 2–9–22; 8:45 am] 

BILLING CODE 4910–13–P 


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