Federal Register / Vol. 86, No. 35 / Wednesday, February 24, 2021 / Rules and Regulations 11111 

Administration (NARA). For information on 

the availability of this material at NARA, 

email fedreg.legal@nara.gov, or go to: https:// 

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued on January 28, 2021. 

Gaetano A. Sciortino, 

Deputy Director for Strategic Initiatives, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2021–03600 Filed 2–23–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2020–0977; Project 

Identifier MCAI–2020–01106–T; Amendment 

39–21415; AD 2021–03–12] 

RIN 2120–AA64 

Airworthiness Directives; Dassault 

Aviation Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2019–03– 

27, which applied to all Dassault 

Aviation Model Falcon 10 airplanes. AD 

2019–03–27 required repetitive detailed 

inspections of certain wing anti-ice 

outboard flexible hoses, and 

replacement of certain wing anti-ice 

outboard flexible hoses. This AD 

continues to require the actions in AD 

2019–03–27, and also adds a new life 

limit for the improved wing anti-ice 

flexible hose; as specified in a European 

Union Aviation Safety Agency (EASA) 

AD, which is incorporated by reference. 

This AD was prompted by a report 

indicating that certain wing anti-ice 

outboard flexible hoses were found 

damaged, likely resulting from the 

installation process, and the 

development of an improved wing antiice flexible hose. The FAA is issuing 

this AD to address the unsafe condition 

on these products. 

DATES: This AD is effective March 31, 

2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of March 31, 2021. 

ADDRESSES: For material incorporated 

by reference (IBR) in this AD, contact 

the EASA, Konrad-Adenauer-Ufer 3, 

50668 Cologne, Germany; phone: +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–2020– 

0977. 

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–2020– 

0977; 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: Tom 

Rodriguez, Aerospace Engineer, Large 

Aircraft Section, International 

Validation Branch, FAA, 2200 South 

216th St., Des Moines, WA 98198; 

phone and fax: 206–231–3226; email: 

tom.rodriguez@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

The EASA, which is the Technical 

Agent for the Member States of the 

European Union, has issued EASA AD 

2020–0127, dated June 4, 2020 (EASA 

AD 2020–0127) (also referred to as the 

Mandatory Continuing Airworthiness 

Information, or the MCAI), to correct an 

unsafe condition for all Dassault 

Aviation Model Falcon 10 airplanes. 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to supersede AD 2019–03–27, 

Amendment 39–19579 (84 FR 7801, 

March 5, 2019) (AD 2019–03–27). AD 

2019–03–27 applied to all Dassault 

Aviation Model Falcon 10 airplanes. 

The NPRM published in the Federal 

Register on November 2, 2020 (85 FR 

69269). The NPRM was prompted by a 

report indicating that certain wing antiice outboard flexible hoses were found 

damaged, likely resulting from the 

installation process, and the 

development of an improved wing antiice flexible hose. The NPRM proposed 

to continue to require the actions in AD 

2019–03–27, as specified in an EASA 

AD. The NPRM also proposed to require 

adding a new life limit for the improved 

wing anti-ice flexible hose, as specified 

in EASA AD 2020–0127. 

The FAA is issuing this AD to address 

damaged wing anti-ice outboard flexible 

hoses, which could lead to a loss of 

performance of the wing anti-ice 

protection system that is not 

annunciated to the pilot, and could 

result in reduced control of the airplane. 

See the MCAI for additional background 

information. 

Comments 

The FAA gave the public the 

opportunity to participate in developing 

this final rule. The FAA received no 

comments on the NPRM or on the 

determination of the cost to the public. 

Conclusion 

The FAA reviewed the relevant data 

and determined that air safety and the 

public interest require adopting this 

final rule as proposed, except for 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. 

Related Service Information Under 1 

CFR Part 51 

EASA AD 2020–0127 describes 

procedures for repetitive detailed 

inspections of certain wing anti-ice 

outboard flexible hoses, replacement of 

certain wing anti-ice outboard flexible 

hoses, a new life limit for certain wing 

anti-ice outboard flexible hoses, and 

optional terminating actions for the 

repetitive inspections (replacement of 

all damaged affected wing anti-ice 

outboard flexible hoses or 

accomplishing and passing an 

inspection on an affected wing anti-ice 

outboard flexible hose after it has 

accumulated 100 flight cycles since 

installation on an airplane). 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 54 airplanes of U.S. registry. The 

FAA estimates the following costs to 

comply with this AD: 


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11112 Federal Register / Vol. 86, No. 35 / Wednesday, February 24, 2021 / Rules and Regulations 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Retained actions from AD 2019-03-27 ........... 9 work-hours × $85 per hour = $765 ............. $0 $765 $41,310 

New proposed actions .................................... 9 work-hours × $85 per hour = $765 ............. 316 1,081 58,374 

The FAA estimates the following 

costs to do any necessary on-condition 

replacements 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 

replacements: 

ESTIMATED COSTS OF ON-CONDITION ACTIONS

Labor cost Parts cost Cost per 

product 

9 work-hours × $85 per hour = $765 ...................................................................................................................... $316 $1,081 

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: 

■ a. Removing Airworthiness Directive 

(AD) 2019–03–27, Amendment 39– 

19579 (84 FR 7801, March 5, 2019), and 

■ b. Adding the following new 

airworthiness directive: 

2021–03–12 Dassault Aviation: 

Amendment 39–21415; Docket No. 

FAA–2020–0977; Project Identifier 

MCAI–2020–01106–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective March 31, 2021. 

(b) Affected AD 

This AD replaces AD 2019–03–27, 

Amendment 39–19579 (84 FR 7801, March 5, 

2019) (AD 2019–03–27). 

(c) Applicability 

This AD applies to all Dassault Aviation 

Model Falcon 10 airplanes, certificated in 

any category. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 30, Ice and rain protection. 

(e) Reason 

This AD was prompted by a report 

indicating that certain wing anti-ice outboard 

flexible hoses were found damaged, likely 

resulting from the installation process, and 

the development of an improved wing antiice flexible hose. The FAA is issuing this AD 

to address damaged wing anti-ice outboard 

flexible hoses, which could lead to a loss of 

performance of the wing anti-ice protection 

system that is not annunciated to the pilot, 

and could result in reduced control of the 

airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Requirements 

Except as specified in paragraph (h) of this 

AD: Comply with all required actions and 

compliance times specified in, and in 

accordance with, European Union Aviation 

Safety Agency (EASA) AD 2020–0127, dated 

June 4, 2020 (EASA AD 2020–0127). 

(h) Exceptions to EASA AD 2020–0127 

(1) Where EASA AD 2020–0127 refers to 

February 25, 2019 (the effective date of EASA 

AD 2019–0040–E, dated February 21, 2019), 

this AD requires using March 8, 2019 (the 

effective date of AD 2019–03–27). 

(2) Where EASA AD 2020–0127 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

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

2020–0127 does not apply to this AD. 

(4) Where EASA AD 2020–0127 refers to 

paragraph (4) of EASA AD 2017–0108 for 

applicable life limits, for this AD refer to 

FAA AD 2016–19–07, Amendment 39–18656 

(81 FR 63688, September 16, 2016). 

(i) No Reporting Requirement 

Although the service information 

referenced in EASA AD 2020–0127 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, 


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Federal Register / Vol. 86, No. 35 / Wednesday, February 24, 2021 / Rules and Regulations 11113 

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 Dassault Aviation’s EASA Design 

Organization Approval (DOA). If approved by 

the DOA, the approval must include the 

DOA-authorized signature. 

(k) Related Information 

For more information about this AD, 

contact Tom Rodriguez, Aerospace Engineer, 

Large Aircraft Section, International 

Validation Branch, FAA, 2200 South 216th 

St., Des Moines, WA 98198; phone and fax: 

206–231–3226; email: tom.rodriguez@

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. 

(3) The following service information was 

approved for IBR on March 31, 2021. 

(i) European Union Aviation Safety Agency 

(EASA) AD 2020–0127, dated June 4, 2020. 

(ii) [Reserved] 

(4) For EASA AD 2020–0127, contact the 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; phone: +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. 

(5) 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–2020–0977. 

(6) 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 fedreg.legal@

nara.gov, or go to: https://www.archives.gov/ 

federal-register/cfr/ibr-locations.html. 

Issued on January 28, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–03601 Filed 2–23–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2020–0371; Project 

Identifier AD–2019–00124–E; Amendment 

39–21405; AD 2021–03–02] 

RIN 2120–AA64 

Airworthiness Directives; General 

Electric Company Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

General Electric Company (GE) CF6– 

80C2A1, CF6–80C2A2, CF6–80C2A3, 

CF6–80C2A5, CF6–80C2A5F, CF6– 

80C2A8, CF6–80C2B1, CF6–80C2B1F, 

CF6–80C2B2, CF6–80C2B2F, CF6– 

80C2B4, CF6–80C2B4F, CF6–80C2B5F, 

CF6–80C2B6, CF6–80C2B6F, CF6– 

80C2B6FA, CF6–80C2B7F, CF6– 

80C2B8F, and CF6–80C2D1F model 

turbofan engines. This AD was 

prompted by reports of incidents that 

resulted in a significant fuel loss during 

flight and an in-flight shutdown (IFSD) 

of the engine. This AD requires initial 

and repetitive shim checks of the 

hydromechanical unit/main engine 

control (HMU/MEC) idler adapter on the 

accessory gearbox (AGB) assembly and, 

depending on the results of the shim 

check, possible replacement of the 

inserts on the HMU/MEC idler adapter. 

As a terminating action, this AD 

requires a protrusion check and a pullout test, and the replacement of inserts 

on the HMU/MEC idler adapter that fail 

either test. The FAA is issuing this AD 

to address the unsafe condition on these 

products. 

DATES: This AD is effective March 31, 

2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of March 31, 2021. 

ADDRESSES: For service information 

identified in this final rule, contact 

General Electric Company, 1 Neumann 

Way, Cincinnati, OH 45215; phone: 

(513) 552–3272; email: 

aviation.fleetsupport@ge.com. You may 

view this service information at the 

FAA, Airworthiness Products Section, 

Operational Safety Branch, 1200 District 

Avenue, Burlington, MA 01803. For 

information on the availability of this 

material at the FAA, call (781) 238– 

7759. It is also available at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2020– 

0371. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2020–0371; 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: 

Kevin M. Clark, Aviation Safety 

Engineer, ECO Branch, FAA, 1200 

District Avenue, Burlington, MA 01803; 

phone: (781) 238–7088; fax: (781) 238– 

7199; email: kevin.m.clark@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to certain GE CF6–80C2A1, CF6– 

80C2A2, CF6–80C2A3, CF6–80C2A5, 

CF6–80C2A5F, CF6–80C2A8, CF6– 

80C2B1, CF6–80C2B1F, CF6–80C2B2, 

CF6–80C2B2F, CF6–80C2B4, CF6– 

80C2B4F, CF6–80C2B5F, CF6–80C2B6, 

CF6–80C2B6F, CF6–80C2B6FA, CF6– 

80C2B7F, CF6–80C2B8F, and CF6– 

80C2D1F model turbofan engines. The 

NPRM published in the Federal 

Register on April 10, 2020 (85 FR 

20211). The NPRM was prompted by 

reports of incidents that resulted in a 

significant fuel loss during flight and an 

IFSD of the engine. The incidents 

resulted from inserts on the HMU/MEC 

idler adapter on the AGB assembly 

pulling out of the housing. An 

investigation by the manufacturer 

discovered improperly cut threads on 

the inserts and erroneous instructions in 

the maintenance manual, which 

contributed to poor thread engagement. 

In the NPRM, the FAA proposed to 

require initial and repetitive shim 

checks of the HMU/MEC idler adapter 

on the AGB assembly and, depending 

on the results of the shim check, 

possible replacement of the inserts on 

the HMU/MEC idler adapter. As a 

terminating action to the repetitive shim 


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