Federal Register / Vol. 86, No. 23 / Friday, February 5, 2021 / Rules and Regulations 8299 

regulatory flexibility analysis, when 

among other things the agency for good 

cause finds that notice and public 

procedure are impracticable, 

unnecessary, or contrary to the public 

interest. SBA Office of Advocacy guide: 

How to Comply with the Regulatory 

Flexibility Act, Ch.1. p.9. Since this rule 

is exempt from notice and comment, 

SBA is not required to conduct a 

regulatory flexibility analysis. 

Authority: 15 U.S.C. 636(a)(36); 

Coronavirus Aid, Relief, and Economic 

Security Act, Pub. L. 116–136, section 1114 

and Economic Aid to Hard-Hit Small 

Businesses, Nonprofits, and Venues Act (Pub. 

L. 116–260), section 303. 

Tami Perriello, 

Acting Administrator, Small Business 

Administration. 

Andy P. Baukol, 

Principal Deputy Assistant Secretary for 

International Monetary Policy (performing the 

delegable duties of the Deputy Secretary), 

Department of the Treasury. 

[FR Doc. 2021–02314 Filed 2–3–21; 11:15 am] 

BILLING CODE P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2020–1177; Project 

Identifier MCAI–2020–01336–R; Amendment 

39–21403; AD 2021–02–20] 

RIN 2120–AA64 

Airworthiness Directives; He ́licopte`res 

Guimbal Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

He ́licopte`res Guimbal Model Cabri G2 

helicopters. This AD was prompted by 

a report of a crack in a rotating scissor 

fitting. This AD requires an initial and 

repetitive inspections of certain rotating 

and non-rotating scissor fittings, and 

depending on the results, replacing the 

affected assembly. This AD also 

prohibits installing certain main rotor 

hubs (MRHs) and swashplate guides 

unless the initial inspection has been 

accomplished. The FAA is issuing this 

AD to address the unsafe condition on 

these products. 

DATES: This AD becomes effective 

February 22, 2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain documents listed in this AD 

as of February 22, 2021. 

The FAA must receive comments on 

this AD by March 22, 2021. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, by any of the following 

methods: 

• Federal eRulemaking Portal: Go to 

https://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: (202) 493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue SE, Washington, DC 20590. 

• Hand Delivery: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this final rule, contact He ́licopte`res 

Guimbal, Basile Ginel, 1070, rue du 

Lieutenant Parayre, Ae ́rodrome d’Aixen-Provence, 13290 Les Milles, France; 

telephone 33–04–42–39–10–88; email 

basile.ginel@guimbal.com; web https://

www.guimbal.com. You may view this 

service information at the FAA, Office 

of the Regional Counsel, Southwest 

Region, 10101 Hillwood Pkwy., Room 

6N–321, Fort Worth, TX 76177. For 

information on the availability of this 

material at the FAA, call (817) 222– 

5110. It is also available at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2020– 

1177. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2020–1177; 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 European Union Aviation 

Safety Agency (EASA) AD, any 

comments received, and other 

information. The street address for 

Docket Operations is listed above. 

FOR FURTHER INFORMATION CONTACT: Fred 

Guerin, Aerospace Engineer, General 

Aviation & Rotorcraft Section, 

International Validation Branch, FAA, 

2200 South 216th St. Des Moines, WA 

98198; telephone (206) 231–3500; email 

fred.guerin@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The EASA, which is the Technical 

Agent for the Member States of the 

European Union, has issued EASA AD 

No. 2020–0199, dated September 21, 

2020, and corrected September 24, 2020 

(EASA AD 2020–0199), to correct an 

unsafe condition for He ́licopte`res 

Guimbal (HG) Model Cabri G2 

helicopters. EASA advises of a report of 

a crack in a rotating scissor fitting 

discovered during maintenance. 

According to EASA, the suspected root 

cause of the crack was corrosion under 

residual stress. This condition, if not 

addressed, could result in failure of the 

rotating or non-rotating scissor fitting on 

either the MRH or the swashplate guide, 

and subsequent loss of control of the 

helicopter. 

Accordingly, EASA AD 2020–0199 

requires an initial and repetitive 

inspections of the rotating and nonrotating scissor fittings part number (P/ 

N) G12–00–200 installed on the MRH or 

swashplate guide, respectively. If a 

crack is detected, the EASA AD requires 

replacing the affected MRH or 

swashplate guide with a serviceable 

part. The EASA AD prohibits installing 

certain MRHs and swashplate guides 

unless the initial inspection has been 

accomplished. The EASA AD also 

requires reporting certain information to 

HG. 

FAA’s Determination 

These helicopters have been approved 

by EASA and are approved for operation 

in the United States. Pursuant to the 

FAA’s bilateral agreement with the 

European Union, EASA has notified the 

FAA about the unsafe condition 

described in its AD. The FAA is 

proposing this AD after evaluating all 

known relevant information and 

determining that the unsafe condition 

described previously is likely to exist or 

develop on other helicopters of the same 

type design. 

Related Service Information Under 1 

CFR Part 51 

The FAA reviewed Guimbal Service 

Bulletin SB 20–011, Revision C, and SB 

20–012, Revision B, each dated October 

5, 2020 (SB 20–011 Rev C and SB 20– 

012 Rev B). SB 20–012 Rev B specifies 

removing the bolts connecting the two 

scissor fittings P/N G12–00–200 and 

accomplishing a one-time detailed 

inspection for a crack in certain areas. 

SB 20–012 Rev B also specifies 

reassembling the two scissor fittings 

using correct bolt torque limits, 

installing new cotter pins, and reporting 

any findings to HG customer service. SB 

20–011 Rev C specifies procedures for a 

recurring inspection after 

accomplishment of SB 20–012 Rev B of 

the same areas of the scissor fittings for 

a crack as SB 20–012 Rev B, except 

without removing the bolts which 

connect the two scissor fittings. SB 20– 


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8300 Federal Register / Vol. 86, No. 23 / Friday, February 5, 2021 / Rules and Regulations 

011 Rev C also specifies reporting any 

findings to customer service. 

This service information 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. 

Other Related Service Information 

The FAA also reviewed Guimbal 

Service Bulletin SB 20–011, Revision B, 

and SB 20–012, Revision A, each dated 

September 1, 2020 (SB 20–011 Rev B 

and SB 20–012 Rev A). SB 20–012 Rev 

A specifies the same procedures as SB 

20–012 Rev B, except SB 20–012 Rev B 

revises the compliance time, adds the 

EASA AD identification information, 

and updates the Situation section 

description. SB 20–011 Rev B specifies 

the same procedures as SB 20–011 Rev 

C, except SB 20–011 Rev C adds the 

EASA AD identification information 

and updates the Situation section 

description. 

AD Requirements 

This AD requires, within 30 hours 

time-in-service (TIS) or 30 calendar 

days, whichever occurs first, inspecting 

each rotating and non-rotating scissor 

fitting with the bolts connecting the 

scissor fittings removed. For this initial 

inspection, this AD requires removing 

the cotter pins and bolts that connect 

the two scissor fittings, cleaning the 

outside surface of each scissor fitting, 

and using a flashlight to visually inspect 

each scissor fitting for a crack. 

This AD also requires, at intervals not 

to exceed 50 hours TIS or 6 months, 

whichever occurs first, repetitive 

inspections of each scissor fitting 

without removing the bolts and 

separating the two scissor fittings. For 

these repetitive inspections, this AD 

requires cleaning each scissor fitting, 

and while using a flashlight, visually 

inspecting each scissor fitting for a 

crack. 

If during any inspection there is a 

crack, this AD requires replacing the 

MRH or swashplate guide, as applicable, 

before further flight. 

This AD also prohibits installing an 

MRH or swashplate guide with an 

affected scissor fitting installed, even if 

new, unless the initial inspection has 

been accomplished. 

Differences Between This AD and the 

EASA AD 

The EASA AD requires detailed 

inspections, whereas this AD requires 

cleaning each scissor fitting and visually 

inspecting each scissor fitting using a 

flashlight. The EASA AD also requires 

reporting certain information, whereas 

this AD does not. The EASA AD allows 

installing a new (not previously 

installed) MRH or swashplate guide, 

whereas this AD prohibits installing a 

new MRH or swashplate guide unless 

the initial inspection has been 

accomplished. 

Justification for Immediate Adoption 

and Determination of the Effective Date 

Section 553(b)(3)(B) of the 

Administrative Procedure Act (APA) (5 

U.S.C. 551 et seq.) authorizes agencies 

to dispense with notice and comment 

procedures for rules when the agency, 

for ‘‘good cause,’’ finds that those 

procedures are ‘‘impracticable, 

unnecessary, or contrary to the public 

interest.’’ Under this section, an agency, 

upon finding good cause, may issue a 

final rule without providing notice and 

seeking comment prior to issuance. 

Further, section 553(d) of the APA 

authorizes agencies to make rules 

effective in less than thirty days, upon 

a finding of good cause. 

An unsafe condition exists that 

requires the immediate adoption of this 

AD without providing an opportunity 

for public comments prior to adoption. 

The FAA has found that the risk to the 

flying public justifies foregoing notice 

and comment prior to adoption of this 

rule because the initial inspection must 

be completed within 30 hours TIS or 30 

calendar days, whichever occurs first, 

and thereafter, the repetitive inspections 

must be completed within 50 hours TIS 

or 6 months, whichever occurs first. 

Accordingly, notice and opportunity for 

prior public comment are impracticable 

and contrary to the public interest 

pursuant to 5 U.S.C. 553(b)(3)(B). 

In addition, the FAA finds that good 

cause exists pursuant to 5 U.S.C. 553(d) 

for making this amendment effective in 

less than 30 days, for the same reasons 

the FAA found good cause to forego 

notice and comment. 

Comments Invited 

The FAA invites you to send any 

written data, views, or arguments about 

this final rule. Send your comments to 

an address listed under ADDRESSES. 

Include ‘‘Docket No. FAA–2020–1177; 

Project Identifier MCAI–2020–01336–R 

at the beginning of your comments. The 

most helpful comments reference a 

specific portion of the final rule, 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 this final rule because of those 

comments. 

Except for Confidential Business 

Information (CBI) as described in the 

following paragraph, and other 

information as described in 14 CFR 

11.35, the FAA will post all comments 

received, without change, to https://

www.regulations.gov, including any 

personal information you provide. The 

agency will also post a report 

summarizing each substantive verbal 

contact received about this final rule. 

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 AD 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 AD, 

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 AD. Submissions containing CBI 

should be sent to Fred Guerin, 

Aerospace Engineer, General Aviation 

and Rotorcraft Section, International 

Validation Branch (AIR–732), FAA, 

2200 South 216th St., Des Moines, WA 

98198; telephone (206) 231–3500; email 

fred.guerin@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. 

Regulatory Flexibility Act 

The requirements of the Regulatory 

Flexibility Act (RFA) do not apply when 

an agency finds good cause pursuant to 

5 U.S.C. 553 to adopt a rule without 

prior notice and comment. Because the 

FAA has determined that it has good 

cause to adopt this rule without prior 

notice and comment, RFA analysis is 

not required. 

Costs of Compliance 

The FAA estimates that this AD 

affects 32 helicopters of U.S. Registry. 

Labor rates are estimated at $85 per 

work-hour. Based on these numbers, the 

FAA estimates the following costs to 

comply with this AD. 

Removing and installing the bolt and 

cotter pins in the initial inspection takes 

a minimal amount of time. Inspecting 

each scissor fitting takes about 0.5 workhour for an estimated cost of $43 per 

fitting, per inspection cycle. There are 2 

scissor fittings installed on a helicopter, 

for an estimated cost of $85 per 

helicopter and $2,720 for the U.S. fleet, 

per inspection cycle. If required, 

replacing an MRH takes about 5 workVerDate Sep<11>2014 16:06 Feb 04, 2021 Jkt 253001 PO 00000 Frm 00018 Fmt 4700 Sfmt 4700 E:\FR\FM\05FER1.SGM 05FER1

jbell on DSKJLSW7X2PROD with RULES
Federal Register / Vol. 86, No. 23 / Friday, February 5, 2021 / Rules and Regulations 8301 

hours and the part costs about $32,000, 

for an estimated cost of $32,425 per 

helicopter. If required, replacing a 

swashplate guide takes about 6 workhours and the part costs about $2,000, 

for an estimated cost of $2,510 per 

helicopter. 

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, I certify 

that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

and 

(2) Will not affect intrastate aviation 

in Alaska. 

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: 

2021–02–20 He ́licopte`res Guimbal: 

Amendment 39–21403; Docket No. 

FAA–2020–1177; Project Identifier 

MCAI–2020–01336–R. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective February 22, 2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to He ́licopte`res Guimbal 

Model Cabri G2 helicopters, certificated in 

any category, with rotating or non-rotating 

scissor fitting part number (P/N) G12–00– 

200, installed on the main rotor hub (MRH) 

or swashplate guide, respectively. 

(d) Subject 

Joint Aircraft Service Component (JASC) 

Code: 6700, Rotorcraft Flight Control. 

(e) Unsafe Condition 

This AD was prompted by a report of a 

crack in a rotating scissor fitting. The FAA 

is issuing this AD to detect a crack and 

prevent failure of a scissor fitting. The unsafe 

condition, if not addressed, could result in 

failure of a rotating or non-rotating scissor 

fitting and subsequent loss of control of the 

helicopter. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

(1) Within 30 hours time-in-service (TIS) or 

30 calendar days, whichever occurs first: 

(i) Remove the cotter pins and bolts 

connecting the rotating and non-rotating 

scissor fitting by following the Required 

Actions, IPC 4.1–2(a), of Guimbal Service 

Bulletin SB 20–012, Revision B, dated 

October 5, 2020 (SB 20–012 Rev B). Remove 

the cotter pins from service. Clean each 

scissor fitting. Using a flashlight, visually 

inspect each scissor fitting by following the 

Required Actions, IPC 4.1–2(b), of SB 20–012 

Rev B. 

(ii) If there is a crack, before further flight, 

replace the MRH or swashplate guide, as 

applicable. 

(iii) If there is not a crack, reassemble the 

scissor fittings by following the Required 

Actions, IPC 4.1–2(c), of SB 20–012 Rev B. 

(2) Thereafter, within 50 hours TIS or 6 

months, whichever occurs first, and at 

intervals not to exceed 50 hours TIS or 6 

months, whichever occurs first: 

(i) Leaving each rotating and non-rotating 

scissor fitting assembled, clean each scissor 

fitting. Using a flashlight, visually inspect 

each scissor fitting by following the Required 

Actions, IPC 4.1–2(a), of Guimbal Service 

Bulletin SB 20–011, Revision C, dated 

October 5, 2020. 

(ii) If there is a crack, before further flight, 

replace the MRH or swashplate guide, as 

applicable. 

(3) As of the effective date of this AD, do 

not install an MRH or swashplate guide, with 

rotating or non-rotating scissor fitting P/N 

G12–00–200 installed, respectively, on any 

helicopter, even if new, unless the actions 

required by paragraph (g)(1) of this AD have 

been accomplished. 

(h) Credit for Previous Actions 

(1) This paragraph provides credit for the 

actions required by paragraph (g)(1) of this 

AD if you accomplished Guimbal Service 

Bulletin SB 20–012, Revision A, dated 

September 1, 2020, before the effective date 

of this AD. 

(2) This paragraph provides credit for the 

first instance of the actions required by 

paragraph (g)(2) of this AD if you 

accomplished Guimbal Service Bulletin SB 

20–011, Revision B, dated September 1, 2020, 

before the effective date of this AD. 

(i) Special Flight Permits 

A special flight permit may be permitted 

provided that there are no passengers 

onboard, and the flight is operating under 

day Visual Flight Rules, for the purpose of 

ferrying the helicopter to an authorized 

maintenance facility. 

(j) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, International Validation 

Branch, FAA, has the authority to approve 

AMOCs for this AD, if requested using the 

procedures found in 14 CFR 39.19. In 

accordance with 14 CFR 39.19, send your 

request to your principal inspector or local 

Flight Standards District Office, as 

appropriate. If sending information directly 

to the manager of the certification office, 

send it to the attention of the person 

identified in paragraph (k)(1) of this AD. 

Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov. 

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the local flight standards district office/ 

certificate holding district office. 

(k) Related Information 

(1) For more information about this AD, 

Fred Guerin, Aerospace Engineer, General 

Aviation & Rotorcraft Section, International 

Validation Branch, FAA, 2200 South 216th 

St., Des Moines, WA 98198; telephone (206) 

231–3500; email fred.guerin@faa.gov. 

(2) Guimbal Service Bulletin SB 20–011, 

Revision B, and SB 20–012, Revision A, each 

dated September 1, 2020, which are not 

incorporated by reference, contain additional 

information about the subject of this AD. For 

service information identified in this AD, 

contact He ́licopte`res Guimbal, Basile Ginel, 

1070, rue du Lieutenant Parayre, Ae ́rodrome 

d’Aix-en-Provence, 13290 Les Milles, France; 

telephone 33–04–42–39–10–88; email 

basile.ginel@guimbal.com; web https://

www.guimbal.com. You may view this 

referenced service information at the FAA, 

Office of the Regional Counsel, Southwest 

Region, 10101 Hillwood Pkwy., Room 6N– 

321, Fort Worth, TX 76177. For information 


jbell on DSKJLSW7X2PROD with RULES
8302 Federal Register / Vol. 86, No. 23 / Friday, February 5, 2021 / Rules and Regulations 

on the availability of this material at the 

FAA, call (817) 222–5110. 

(3) The subject of this AD is addressed in 

European Union Aviation Safety Agency 

(EASA) AD No. 2020–0199, dated September 

24, 2020. You may view the EASA AD on the 

internet at https://www.regulations.gov in 

Docket No. FAA–2020–1177. 

(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 the AD specifies otherwise. 

(i) Guimbal Service Bulletin SB 20–011, 

Revision C, dated October 5, 2020. 

(ii) Guimbal Service Bulletin SB 20–012, 

Revision B, dated October 5, 2020. 

(3) For Guimbal service information 

identified in this AD, contact He ́licopte`res 

Guimbal, Basile Ginel, 1070, rue du 

Lieutenant Parayre, Ae ́rodrome d’Aix-enProvence, 13290 Les Milles, France; 

telephone 33–04–42–39–10–88; email 

basile.ginel@guimbal.com; web https://

www.guimbal.com. 

(4) You may view this service information 

at the FAA, Office of the Regional Counsel, 

Southwest Region, 10101 Hillwood Pkwy., 

Room 6N–321, Fort Worth, TX 76177. 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: fedreg.legal@nara.gov, or go to: 

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

ibr-locations.html. 

Issued on January 19, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–02532 Filed 2–3–21; 2:00 pm] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0024; Project 

Identifier MCAI–2021–00105–T; Amendment 

39–21421; AD 2021–03–18] 

RIN 2120–AA64 

Airworthiness Directives; Dassault 

Aviation Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

Dassault Aviation Model FALCON 7X 

airplanes. This AD was prompted by a 

report of deviations concerning the 

assembly and overhaul of certain crew 

oxygen mask stowage boxes, including 

incorrect application of a certain threadlocker on the fitting sensor screws. This 

AD requires an inspection of certain 

crew oxygen mask stowage boxes for 

discrepancies, and replacement 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 becomes effective 

February 22, 2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of February 22, 2021. 

The FAA must receive comments on 

this AD by March 22, 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 incorporated by reference 

(IBR) in this AD, contact the 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– 

0024. 

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– 

0024; 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 AD, any 

comments received, and other 

information. The street address for 

Docket Operations is listed above. 

FOR FURTHER INFORMATION CONTACT: Tom 

Rodriguez, Aerospace Engineer, Large 

Aircraft Section, International 

Validation Branch, FAA, 2200 South 

216th St., Des Moines, WA 98198; 

telephone and fax 206–231–3226; email 

tom.rodriguez@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The EASA, which is the Technical 

Agent for the Member States of the 

European Union, has issued EASA 

Emergency AD 2021–0036–E, dated 

January 25, 2021 (EASA Emergency AD 

2021–0036–E) (also referred to as the 

Mandatory Continuing Airworthiness 

Information, or the MCAI), to correct an 

unsafe condition for all Dassault 

Aviation Model FALCON 7X airplanes. 

This AD was prompted by a report of 

deviations concerning the assembly and 

overhaul of certain crew oxygen mask 

stowage boxes, including incorrect 

application of Loctite 222 thread-locker 

on the fitting sensor screws. The FAA is 

issuing this AD to address such 

deviations, which could lead to blocked 

oxygen supply flow to flight deck crew 

oxygen masks. In combination with inflight depressurization, flight deck 

smoke, or a smoke evacuation 

procedure, this lack of oxygen may lead 

to flightcrew hypoxia and loss of useful 

consciousness and consequent loss of 

control of the airplane. See the MCAI for 

additional background information. 

Related Service Information Under 1 

CFR Part 51 

EASA Emergency AD 2021–0036–E 

describes procedures for an inspection 

(test) of crew oxygen mask stowage 

boxes having part number CSD30–005– 

X–X (‘X’ can represent any 

alphanumeric value) for discrepancies 

(an inability to clearly hear oxygen 

flowing out of the mask during a 

functional test or see that the yellow 

blinker on the stowage box does not 

illuminate), and replacement. 

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 

This product has been approved by 

the aviation authority of another 

country, and is approved for operation 

in the United States. Pursuant to the 

FAA’s bilateral agreement with the State 

of Design Authority, the FAA has been 

notified of the unsafe condition 

described in the MCAI referenced 


jbell on DSKJLSW7X2PROD with RULES