41788 Federal Register / Vol. 86, No. 146 / Tuesday, August 3, 2021 / Proposed Rules 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Diamond Aircraft 

Industries GmbH Models DA 42, DA 42 NG, 

and DA 42 M–NG airplanes, all serial 

numbers, certificated in any category. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 3221, Nose/Tail Landing Gear Attach 

Section. 

(e) Unsafe Condition 

This AD was prompted by mandatory 

continuing airworthiness information (MCAI) 

originated by an aviation authority of another 

country to identify and address an unsafe 

condition on an aviation product. The MCAI 

describes the unsafe condition as failure of 

the nose landing gear (NLG) actuator 

attachment lever and detachment from the 

NLG leg. The FAA is issuing this AD to 

detect and correct cracks in the NLG actuator 

attachment lever, which could result in 

restricted rudder travel with the NLG 

retracted and reduced airplane control. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Definition of Airworthy Part 

For the purposes of this AD, an airworthy 

part is an NLG leg assembly that has 

accumulated 1,800 or fewer hours time-inservice (TIS) since first installation on an 

airplane or that has passed the inspection (no 

cracks and no damage) required by paragraph 

(h)(1) of this AD. 

(h) Required Actions 

(1) Inspect the NLG actuator attachment 

lever for cracks and damage in the areas 

shown in paragraph 2 of the Instructions in 

Diamond Aircraft Work Instruction WI–MSB 

42–136 and WI–MSB 42NG–078, Revision 1, 

dated January 24, 2019 (published as one 

document with Mandatory Service Bulletin 

MSB 42–136/1 and MSB 42NG–078, dated 

January 24, 2019) at the following applicable 

compliance times: 

(i) For airplanes with an NLG assembly 

that has accumulated less than 1,800 hours 

TIS as of the effective date of this AD: Within 

200 hours TIS after the NLG assembly 

accumulates 1,800 hours TIS or within 12 

months after the NLG assembly accumulates 

1,800 hours TIS, whichever occurs first, and 

thereafter at intervals not to exceed 200 hours 

TIS; or 

(ii) For airplanes with an NLG assembly 

that has accumulated 1,800 or more hours 

TIS as of the effective date of this AD: Within 

210 hours TIS after the effective date of this 

AD or within 12 months after the effective 

date of this AD, whichever occurs first, and 

thereafter at intervals not to exceed 200 hours 

TIS. 

(2) After each inspection required by 

paragraph (h)(1) of this AD, if there is a crack 

or damage on the NLG actuator attachment 

lever, before further flight, replace the NLG 

leg assembly with an airworthy part as 

defined by this AD. 

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

not install an NLG leg assembly on any 

airplane unless it is an airworthy part as 

defined by this AD. 

(i) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, International Validation 

Branch, 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 Related Information 

or email: 9-AVS-AIR-730-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. 

(j) Related Information 

(1) For more information about this AD 

contact Penelope Trease, Aviation Safety 

Engineer, General Aviation & Rotorcraft 

Section, International Validation Branch, 

FAA, 26805 E. 68th Avenue, Denver, CO 

80249; phone: (303) 342–1094; email: 

penelope.trease@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. 

(2) Refer to European Union Aviation 

Safety Agency (EASA) AD No. 2019–0066, 

dated March 27, 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– 

2021–0602. 

(3) For service information identified in 

this AD, contact the 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@

diamond-air.at; website: https://

www.diamondaircraft.com. You may review 

this referenced service information at the 

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 (816) 329–4148. 

Issued on July 21, 2021. 

Gaetano A. Sciortino, 

Deputy Director for Strategic Initiatives, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2021–16464 Filed 8–2–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0615; Project 

Identifier MCAI–2021–00177–T] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Canada Limited Partnership (Type 

Certificate Previously Held by C Series 

Aircraft Limited Partnership (CSALP); 

Bombardier, Inc.) Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for 

certain Airbus Canada Limited 

Partnership Model BD–500–1A10 and 

BD–500–1A11 airplanes. This proposed 

AD was prompted by a report indicating 

that during production, the manual 

opening and closing of the over-wing 

emergency exit door (OWEED) prior to 

the installation of the OWEED interior 

panel could have resulted in damaged 

insulation blankets below the left and 

right OWEEDs. This proposed AD 

would require a one-time inspection for 

damage of the insulation blankets below 

the left and right OWEEDs, and 

replacement if necessary, as specified in 

a Transport Canada Civil Aviation 

(TCCA) AD, which is proposed for 

incorporation by reference. The FAA is 

proposing this AD to address the unsafe 

condition on these products. 

DATES: The FAA must receive comments 

on this proposed AD by September 17, 

2021. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, by any of the following 

methods: 

• Federal eRulemaking Portal: Go to 

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

instructions for submitting comments. 

• Fax: 202–493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE, 

Washington, DC 20590. 

• Hand Delivery: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For material that will be incorporated 

by reference (IBR) in this AD, contact 

the TCCA, Transport Canada National 

Aircraft Certification, 159 Cleopatra 

Drive, Nepean, Ontario, K1A 0N5, 

CANADA; telephone 888–663–3639; 


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email AD-CN@tc.gc.ca; internet https:// 

tc.canada.ca/en/aviation. 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– 

0615. 

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– 

0615; or in person at Docket Operations 

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

through Friday, except Federal holidays. 

The AD docket contains this NPRM, any 

comments received, and other 

information. The street address for 

Docket Operations is listed above. 

FOR FURTHER INFORMATION CONTACT: 

Elizabeth Dowling, Aerospace Engineer, 

Mechanical Systems and Administrative 

Services Section, FAA, New York ACO 

Branch, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; telephone 

516–228–7300; fax 516–794–5531; email 

9-avs-nyaco-cos@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

The FAA invites you to send any 

written relevant data, views, or 

arguments about this proposal. Send 

your comments to an address listed 

under ADDRESSES. Include ‘‘Docket No. 

FAA–2021–0615; Project Identifier 

MCAI–2021–00177–T’’ at the beginning 

of your comments. The most helpful 

comments reference a specific portion of 

the proposal, explain the reason for any 

recommended change, and include 

supporting data. The FAA will consider 

all comments received by the closing 

date and may amend the proposal 

because of those comments. 

Except for Confidential Business 

Information (CBI) as described in the 

following paragraph, and other 

information as described in 14 CFR 

11.35, the FAA will post all comments 

received, without change, to https://

www.regulations.gov, including any 

personal information you provide. The 

agency will also post a report 

summarizing each substantive verbal 

contact received about this proposed 

AD. 

Confidential Business Information 

CBI is commercial or financial 

information that is both customarily and 

actually treated as private by its owner. 

Under the Freedom of Information Act 

(FOIA) (5 U.S.C. 552), CBI is exempt 

from public disclosure. If your 

comments responsive to this NPRM 

contain commercial or financial 

information that is customarily treated 

as private, that you actually treat as 

private, and that is relevant or 

responsive to this NPRM, it is important 

that you clearly designate the submitted 

comments as CBI. Please mark each 

page of your submission containing CBI 

as ‘‘PROPIN.’’ The FAA will treat such 

marked submissions as confidential 

under the FOIA, and they will not be 

placed in the public docket of this 

NPRM. Submissions containing CBI 

should be sent to Elizabeth Dowling, 

Aerospace Engineer, Mechanical 

Systems and Administrative Services 

Section, FAA, New York ACO Branch, 

1600 Stewart Avenue, Suite 410, 

Westbury, NY 11590; telephone 516– 

228–7300; fax 516–794–5531; email 9- 

avs-nyaco-cos@faa.gov. Any 

commentary that the FAA receives 

which is not specifically designated as 

CBI will be placed in the public docket 

for this rulemaking. 

Background 

TCCA, which is the aviation authority 

for Canada, issued TCCA AD CF–2021– 

03 on February 11, 2021 (TCCA AD CF– 

2021–03) (also referred to as the 

Mandatory Continuing Airworthiness 

Information, or the MCAI), to correct an 

unsafe condition for certain Airbus 

Canada Limited Partnership Model BD– 

500–1A10 and BD–500–1A11 airplanes. 

This proposed AD was prompted by 

a report indicating that during 

production, the manual opening and 

closing of the OWEED prior to the 

installation of the OWEED interior panel 

could have resulted in damaged 

insulation blankets below the left and 

right OWEEDs. The insulation blanket 

acts as a fire penetration barrier. The 

FAA is proposing this AD to address 

potential damage to the insulation 

blankets, which could result in delayed 

passenger evacuation in the event of 

post-crash/post-impact fire events 

outside the airplane. See the MCAI for 

additional background information. 

Related Service Information Under 1 

CFR Part 51 

TCCA AD CF–2021–03 describes 

procedures for a one-time visual 

inspection for damage of the insulation 

blankets below the left and right 

OWEEDs, and replacement of any 

damaged insulation blankets. This 

material is reasonably available because 

the interested parties have access to it 

through their normal course of business 

or by the means identified in the 

ADDRESSES section. 

FAA’s Determination and Requirements 

of This Proposed AD 

This product has been approved by 

the aviation authority of another 

country, and is approved for operation 

in the United States. Pursuant to the 

FAA’s bilateral agreement with the State 

of Design Authority, the FAA has been 

notified of the unsafe condition 

described in the MCAI referenced 

above. The FAA is proposing this AD 

because the FAA evaluated all the 

relevant information and determined 

the unsafe condition described 

previously is likely to exist or develop 

in other products of the same type 

design. 

Proposed AD Requirements 

This proposed AD would require 

accomplishing the actions specified in 

TCCA AD CF–2021–03 described 

previously, as incorporated by 

reference, except for any differences 

identified as exceptions in the 

regulatory text of this AD. 

Explanation of Required Compliance 

Information 

In the FAA’s ongoing efforts to 

improve the efficiency of the AD 

process, the FAA developed a process to 

use certain civil aviation authority 

(CAA) ADs as the primary source of 

information for compliance with 

requirements for corresponding FAA 

ADs. The FAA has been coordinating 

this process with manufacturers and 

CAAs. As a result, TCCA AD CF–2021– 

03 will be incorporated by reference in 

the FAA final rule. This proposed AD 

would, therefore, require compliance 

with TCCA AD CF–2021–03 in its 

entirety, through that incorporation, 

except for any differences identified as 

exceptions in the regulatory text of this 

proposed AD. Service information 

specified in TCCA AD CF–2021–03 that 

is required for compliance with it will 

be available at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2021– 

0615 after the FAA final rule is 

published. 

Costs of Compliance 

The FAA estimates that this proposed 

AD affects 33 airplanes of U.S. registry. 

The FAA estimates the following costs 

to comply with this proposed AD: 


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ESTIMATED COSTS FOR REQUIRED ACTIONS

Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

3 work-hours × $85 per hour = $255 .......................................................................................... $0 $255 $8,415 

The FAA estimates the following 

costs to do any necessary on-condition 

action 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 this 

on-condition action: 

ESTIMATED COSTS OF ON-CONDITION ACTION

Labor cost Parts cost Cost per 

product 

2 work-hours × $85 per hour = $170 ...................................................................................................................... $150 $320 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. Subtitle VII: 

Aviation Programs, describes in more 

detail the scope of the Agency’s 

authority. 

The FAA is issuing this rulemaking 

under the authority described in 

Subtitle VII, Part A, Subpart III, Section 

44701: General requirements. Under 

that section, Congress charges the FAA 

with promoting safe flight of civil 

aircraft in air commerce by prescribing 

regulations for practices, methods, and 

procedures the Administrator finds 

necessary for safety in air commerce. 

This regulation is within the scope of 

that authority because it addresses an 

unsafe condition that is likely to exist or 

develop on products identified in this 

rulemaking action. 

Regulatory Findings 

The FAA determined that this 

proposed AD would not have federalism 

implications under Executive Order 

13132. This proposed AD would not 

have a substantial direct effect on the 

States, on the relationship between the 

national Government and the States, or 

on the distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify this proposed regulation: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Would not affect intrastate 

aviation in Alaska, and 

(3) Would not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 14 CFR part 

39 as follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

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

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive (AD): 

Airbus Canada Limited Partnership (Type 

Certificate Previously Held by C Series 

Aircraft Limited Partnership (CSALP); 

Bombardier, Inc.): Docket No. FAA– 

2021–0615; Project Identifier MCAI– 

2021–00177–T. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by September 

17, 2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Airbus Canada Limited 

Partnership (type certificate previously held 

by C Series Aircraft Limited Partnership 

(CSALP); Bombardier, Inc.) Model BD–500– 

1A10 and BD–500–1A11 airplanes, 

certificated in any category, as identified in 

Transport Canada Civil Aviation (TCCA) AD 

CF–2021–03, issued February 11, 2021 

(TCCA AD CF–2021–03). 

(d) Subject 

Air Transport Association (ATA) of 

America Code 25, Equipment/Furnishings. 

(e) Reason 

This AD was prompted by a report 

indicating that during production, the 

manual opening and closing of the over-wing 

emergency exit door (OWEED) prior to the 

installation of the OWEED interior panel 

could have resulted in damaged insulation 

blankets below the left and right OWEEDs. 

The FAA is issuing this AD to address this 

condition, which could result in delayed 

passenger evacuation in the event of postcrash/post-impact fire events outside 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, TCCA AD CF–2021–03. 

(h) Exceptions to TCCA AD CF–2021–03 

(1) Where TCCA AD CF–2021–03 refers to 

its effective date, this AD requires using the 

effective date of this AD. 

(2) Where TCCA AD CF–2021–03 specifies 

replacement of damaged blankets, this AD 

requires replacement before further flight 

after damage is detected. 

(3) Where TCCA AD CF–2021–03 refers to 

‘‘hours air time,’’ this AD requires using 

flight hours. 

(i) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, New York ACO 

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 ATTN: Program Manager, 

Continuing Operational Safety, FAA, New 

York ACO Branch, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; telephone 

516–228–7300; fax 516–794–5531. Before 


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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. 

(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, New York ACO Branch, 

FAA; or TCCA; or Airbus Canada’s TCCA 

Design Approval Organization (DAO). If 

approved by the DAO, the approval must 

include the DAO-authorized signature. 

(j) Related Information 

(1) For information about TCCA AD CF– 

2021–03, contact the TCCA, Transport 

Canada National Aircraft Certification, 159 

Cleopatra Drive, Nepean, Ontario, K1A 0N5, 

CANADA; telephone 888–663–3639; email 

AD-CN@tc.gc.ca; internet https://

tc.canada.ca/en/aviation. For Airbus service 

information identified in this AD, contact 

Airbus Canada Limited Partnership, 13100 

Henri-Fabre Boulevard, Mirabel, Que ́bec J7N 

3C6, Canada; telephone 450–476–7676; email 

a220_crc@abc.airbus; internet https://

a220world.airbus.com. 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–2021–0615. 

(2) For more information about this AD, 

contact Elizabeth Dowling, Aerospace 

Engineer, Mechanical Systems and 

Administrative Services Section, FAA, New 

York ACO Branch, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; telephone 

516–228–7300; fax 516–794–5531; email 9- 

avs-nyaco-cos@faa.gov. 

Issued on July 28, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–16450 Filed 8–2–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0611; Project 

Identifier MCAI–2021–00038–R] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Helicopters Deutschland GmbH 

Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to 

supersede Airworthiness Directive (AD) 

2019–05–06, which applies to Airbus 

Helicopters Deutschland GmbH (Airbus 

Helicopters) Model EC135P1, EC135P2, 

EC135P2+, EC135P3, EC135T1, 

EC135T2, EC135T2+, and EC135T3 

helicopters. AD 2019–05–06 requires 

replacing the retaining ring, inspecting 

the hoist cable hook assembly, and, if 

necessary, replacing the elastomeric 

energy absorber. Since the FAA issued 

AD 2019–05–06 the design approval 

holder (DAH) has designed an updated 

hook assembly, which, when installed, 

terminates the repetitive inspections 

required by AD 2019–05–06. This 

proposed AD would continue to require 

the actions specified in AD 2019–05–06, 

and would also require a modification 

or replacement of the hoist cable hook 

assembly that would terminate the 

repetitive inspections and retaining ring 

replacements, as specified in a 

European Union Aviation Safety Agency 

(EASA) AD, which is proposed for 

incorporation by reference (IBR). The 

FAA is proposing this AD to address the 

unsafe condition on these products. 

DATES: The FAA must receive comments 

on this proposed AD by September 17, 

2021. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, by any of the following 

methods: 

• Federal eRulemaking Portal: Go to 

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

instructions for submitting comments. 

• Fax: 202–493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE, 

Washington, DC 20590. 

• Hand Delivery: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For EASA material that is proposed 

for 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. 

For Goodrich service information 

identified in this AD, contact Airbus 

Helicopters, 2701 N Forum Drive, Grand 

Prairie, TX 75052; telephone (972) 641– 

0000 or (800) 232–0323; fax (972) 641– 

3775; or at https://www.airbus.com/ 

helicopters/services/technicalsupport.html. You may view this 

material 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 in the AD docket on the 

internet at https://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2021–0611. 

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– 

0611; or in person at Docket Operations 

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

through Friday, except Federal holidays. 

The AD docket contains this NPRM, any 

comments received, and other 

information. The street address for 

Docket Operations is listed above. 

Comments will be available in the AD 

docket shortly after receipt. 

FOR FURTHER INFORMATION CONTACT: 

Jacob Fitch, Aerospace Engineer, COS 

Program Management Section, 

Operational Safety Branch, Compliance 

& Airworthiness Division, FAA, 10101 

Hillwood Pkwy., Fort Worth, TX 76177; 

phone: (817) 222–4130; email: 

jacob.fitch@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

The FAA invites you to send any 

written relevant data, views, or 

arguments about this proposal. Send 

your comments to an address listed 

under ADDRESSES. Include ‘‘Docket No. 

FAA–2021–0611; Project Identifier 

MCAI–2021–00038–R’’ at the beginning 

of your comments. The most helpful 

comments reference a specific portion of 

the proposal, explain the reason for any 

recommended change, and include 

supporting data. The FAA will consider 

all comments received by the closing 

date and may amend this proposal 

because of those comments. 

Except for Confidential Business 

Information (CBI) as described in the 

following paragraph, and other 

information as described in 14 CFR 

11.35, the FAA will post all comments 

received, without change, to https://

www.regulations.gov, including any 

personal information you provide. The 

agency will also post a report 

summarizing each substantive verbal 

contact received about this proposal. 

Confidential Business Information 

CBI is commercial or financial 

information that is both customarily and 

actually treated as private by its owner. 

Under the Freedom of Information Act 

(FOIA) (5 U.S.C. 552), CBI is exempt 

from public disclosure. If your 

comments responsive to this NPRM 

contain commercial or financial 


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