Federal Register / Vol. 87, No. 78 / Friday, April 22, 2022 / Proposed Rules 24073 

April 25, 2022. We are extending the 

comment period on Docket No. APHIS– 

2020–0068 for an additional 30 days. 

This action will allow interested 

persons additional time to prepare and 

submit comments. 

Authority: 7 U.S.C. 2131–2159; 7 CFR 2.22, 

2.80, and 371.7. 

Done in Washington, DC, this 15th day of 

April 2022. 

Anthony Shea, 

Administrator, Animal and Plant Health 

Inspection Service. 

[FR Doc. 2022–08642 Filed 4–21–22; 8:45 am] 

BILLING CODE 3410–34–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0462; Project 

Identifier MCAI–2021–00647–T] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company 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 The Boeing Company Model 

737–700, 737–800, 747–400, 747–8, 

767–400ER, and 777–200 airplanes. 

This proposed AD was prompted by a 

report that there is the potential for 

electrical current to pass through low 

pressure (LP) oxygen flex-hoses in the 

gaseous passenger oxygen system. This 

proposed AD would require replacing 

each conductive oxygen flex-hose 

installed on LP gaseous passenger 

oxygen systems with a serviceable nonconductive oxygen flex-hose. This 

proposed AD would also prohibit 

installation of a conductive oxygen flexhose on LP gaseous passenger oxygen 

systems. 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 June 6, 2022. 

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 NPRM, contact Lufthansa Technik 

AG, Weg beim Ja ̈ger 193 22335 

Hamburg, Germany; telephone 49–40– 

5070–67428; internet https://

www.lufthansa-technik.com. You may 

view this service information 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. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0462; 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: 

Chirayu Gupta, 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–2022–0462; Project Identifier 

MCAI–2021–00647–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 NPRM. 

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 Chirayu Gupta, 

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 

The European Union Aviation Safety 

Agency (EASA), which is the Technical 

Agent for the Member States of the 

European Union, has issued EASA AD 

2021–0135, dated June 2, 2021 (EASA 

AD 2021–0135) (also referred to after 

this as the Mandatory Continuing 

Airworthiness Information, or the 

MCAI), to correct an unsafe condition 

for certain The Boeing Company Model 

737–700, 737–800, 747–400, 747–8, 

767–400ER, and 777–200 airplanes with 

certain Lufthansa Technik AG 

supplemental type certificates (STCs). 

Those STCs are not validated by the 

FAA; this proposed AD therefore refers 

to the corresponding FAA STC, STC 

ST04127NY, instead in the 

applicability. You may examine the 

MCAI in the AD docket at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2022– 

0462. 

This proposed AD was prompted by 

a report that there is the potential for 

electrical current to pass through LP 

oxygen flex-hoses in the gaseous 

passenger oxygen system. Exposure to 

electrical faults, such as unintended 

short circuits, can result in localized 

electrical heating of the LP oxygen flexhoses. The FAA issued AD 2018–09–12, 

Amendment 39–19269 (83 FR 22360, 


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24074 Federal Register / Vol. 87, No. 78 / Friday, April 22, 2022 / Proposed Rules 

May 15, 2018) (AD 2018–09–12), for 

certain The Boeing Company Model 

747–200B, –300, and –400 series 

airplanes; and AD 2019–25–12, 

Amendment 39–21010 (85 FR 449, 

dated January 6, 2020) (AD 2019–25– 

12), for certain The Boeing Company 

Model 777–200 and –300ER series 

airplanes. AD 2018–09–12 and AD 

2019–25–12 require replacing the LP 

oxygen flex-hoses with new nonconductive LP oxygen flex-hoses in the 

gaseous passenger oxygen system in 

airplanes equipped with therapeutic 

oxygen. The same conductive oxygen 

flex-hoses affected by those ADs have 

also been installed on airplanes 

modified by the Lufthansa Technik AG 

STCs and FAA STC that are the subject 

of this AD but were not part of the 

applicability of AD 2018–09–12 and AD 

2019–25–12. The FAA is proposing this 

AD to address the possibility of 

electrical current passing through the LP 

oxygen flex-hoses in the gaseous 

passenger oxygen system, which could 

cause the flex-hoses to melt or burn and 

result in an oxygen-fed fire in the 

passenger cabin. See the MCAI for 

additional background information. 

Related Service Information Under 1 

CFR Part 51 

Lufthansa Technik AG has issued the 

following service information. 

• Lufthansa Technik Design Change 

Summary ASN–00–DCS–01, Revision 8, 

dated November 5, 2020. 

• Lufthansa Technik Design Change 

Summary ATB–25–DCS–01, Revision 

10, dated January 7, 2021. 

• Lufthansa Technik Design Change 

Summary ATR–23–DCS–01, Revision 2, 

dated January 21, 2021. 

• Lufthansa Technik Design Change 

Summary BCM–35–DCS–01, dated 

January 4, 2021. 

• Lufthansa Technik Design Change 

Summary BCP–35–DCS–01, Revision 1, 

dated April 20, 2021. 

• Lufthansa Technik Design Change 

Summary BCQ–35–DCS–01, Revision 1, 

dated April 20, 2021. 

• Lufthansa Technik Design Change 

Summary BCR–35–DCS–01, Revision 1, 

dated April 20, 2021. 

• Lufthansa Technik Design Change 

Summary BCS–35–DCS–01, dated 

January 5, 2021. 

• Lufthansa Technik Design Change 

Summary BCU–35–DCS–01, dated 

January 5, 2021. 

• Lufthansa Technik Design Change 

Summary BCV–35–DCS–01, dated 

February 4, 2021. 

• Lufthansa Technik Design Change 

Summary BCW–35–DCS–01, dated 

January 4, 2021. 

• Lufthansa Technik Design Change 

Summary BCX–35–DCS–01, Revision 1, 

dated February 4, 2021. 

This service information describes 

procedures for replacing each 

conductive oxygen flex-hose installed 

on LP gaseous passenger oxygen 

systems with a serviceable nonconductive oxygen flex-hose. These 

documents are distinct since they apply 

to different airplane models and 

manufacturer serial numbers. 

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. 

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 and service 

information 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 on other products of the same 

type design. 

Proposed AD Requirements in This 

NPRM 

This proposed AD would require 

accomplishing the actions specified in 

the service information already 

described. This proposed AD would 

also prohibit installation of a conductive 

oxygen flex-hose on LP gaseous 

passenger oxygen systems. 

Costs of Compliance 

The FAA estimates that this AD, if 

adopted as proposed, would affect 7 

airplanes of U.S. registry. The FAA 

estimates the following costs to comply 

with this proposed AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Up to 17 work-hours × $85 per hour = Up to $1,445 ...................................................... $10,090 Up to $11,535 ..... Up to $80,745. 

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) 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 Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 


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Federal Register / Vol. 87, No. 78 / Friday, April 22, 2022 / Proposed Rules 24075 

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: 

The Boeing Company: Docket No. FAA– 

2022–0462; Project Identifier MCAI– 

2021–00647–T. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by June 6, 2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to The Boeing Company 

Model 737–700, 737–800, 747–400, 747–8, 

767–400ER, and 777–200 airplanes, 

certificated in any category, manufacturer 

serial numbers (MSN) 28551, 28961, 29953, 

30791, 30884, 32445, 32575, 32915, 32970, 

32971, 33010, 33102, 33361, 33684, 34205, 

37500, and 37544, modified by FAA 

supplemental type certificate (STC) 

ST04127NY. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 35, Oxygen. 

(e) Unsafe Condition 

This AD was prompted by a report that 

there is the potential for electrical current to 

pass through low pressure (LP) oxygen flexhoses in the gaseous passenger oxygen 

system. The FAA is issuing this AD to 

address this condition, which could cause 

the flex-hoses to melt or burn and result in 

an oxygen-fed fire in the passenger cabin. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Replacement 

Within 48 months after the effective date 

of this AD: Replace each conductive oxygen 

flex-hose installed on LP gaseous passenger 

oxygen systems with a serviceable nonconductive oxygen flex-hose, in accordance 

with the Accomplishment Instructions of the 

applicable Lufthansa Technik Design Change 

Summary (TS–145 Installation Document 

Number) corresponding to the affected part 

numbers specified in figure 1 to paragraph (g) 

of this AD. 

BILLING CODE 4910–13–P 


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Figure 1 to paragraph (g) - Service Information1 

Lufthansa Technik Prohibited Conductive Serviceable Non-Conductive 

Model- Design Change Oxygen Flex-Hose Having Flex-Hose Having Part 

Summary- Part Number (PIN) - Number (PIN) -

737-700 BCP-35-DCS--Ol, 57034-xxx (except for PIN 

airplanes Revision 1, dated 57034-xxNxxx, which is 57211Nxxx 

April 20, 2021 already a non-conductive hose) 

BCQ-35-DCS-0l, 38001-xxx (except for PIN 38055xxxN 

Revision 1, dated 38001-6xx, which is already a 

April 20, 2021 non-conductive hose) 57211Nxxx 

38001-xxx (except for PIN 38055xxxN 38001-6xx, which is already a 

non-conductive hose) 

BCR-35-DCS-0l, 57034-xxx (except for PIN 

Revision 1, dated 57034-xxNxxx, which is 

737-800 April 20, 2021 already a non-conductive hose 

airplanes 57211Nxxx 

57211-xxx 

57034-xxx (except for PIN 57211Nxxx 57034-xxNxxx, which is 

BCS-35-DCS--Ol, already a non-conductive hose) 

dated January 5, 

38001-xxx (except for PIN 2021 38055xxxN 38001-6xx, which is already a 

non-conductive hose) 
24076 Federal Register / Vol. 87, No. 78 / Friday, April 22, 2022 / Proposed Rules 

(h) Parts Installation Prohibition 

As of the effective date of this AD, no 

person may install a prohibited conductive 

oxygen flex-hose specified in figure 1 to 

paragraph (g) of this AD, on LP gaseous 

passenger oxygen systems on any airplane. 

(i) Credit for Previous Actions 

This paragraph provides credit for actions 

required by paragraph (g) of this AD, if those 

actions were performed before the effective 

date of this AD using the service information 

in paragraphs (i)(1) through (6) of this AD. 

(1) Lufthansa Technik Design Change 

Summary ASN–00–DCS–01, Revision 6, 

dated June 25, 2020. 

(2) Lufthansa Technik Design Change 

Summary ASN–00–DCS–01, Revision 7, 

dated August 26, 2020. 


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Lufthansa Technik Prohibited Conductive Serviceable Non-Conductive 

Model- Design Change Oxygen Flex-Hose Having Flex-Hose Having Part 

Summary- Part Number (PIN) - Number (PIN) -

38001-xxx (except for PIN 38055xxxN 

BCX-35-DCS-0l, 

38001-6xx, which is already a 

57297Nxxx non-conductive hose) 

Revision 1, dated 

February 4, 2021 57034-xxx (except for PIN 

57034-xxNxxx, which is 57211Nxxx 

already a non-conductive hose) 

38001-xxx (except for PIN 

38001-6xx, which is already a 38055xxxN 

non-conductive hose) 

BCU-35-DCS-0l, 57034-xxx (except for PIN 

dated January 5, 57034-xxNxxx, which is 

747-400 2021 already a non-conductive hose) 

airplanes 55017-xxx 57211Nxxx 

57211-xxx 

38001-xxx (except for PIN 38055xxxN 

BCV-35-DCS-0l, 38001-6xx, which is already a 

dated February 4, non-conductive hose) 57297Nxxx 

2021 55017-xxx 

57211Nxxx 

57211-xxx 

BCW-35-DCS-0 1, 57021-xxx 

dated January 4, 57211Nxxx 

2021 57211-xxx 

ASN-00-DCS-01, 57034-xxx (except for PIN 

Revision 8, dated 57034-xxNxxx, which is 57297Nxxx 

November 5, 2020 already a non-conductive hose) 

747-8 57034-xxx (except for PIN airplanes A TB-25-DCS-0 1, 57034-xxNxxx, which is 57297Nxxx 

Revision 10, dated already a non-conductive hose) 

January 7, 2021 

57021-xxx 57211Nxxx 

767-400ER ATR-23-DCS-01, 

airplanes Revision 2, dated 60B50060-x 57297Nxxx 

January 21, 2021 

57034-xxx (except for PIN 

57034-xxNxxx, which is 57297Nxxx 

777-200 BCM-35-DCS-0l, already a non-conductive hose) dated January 4, airplanes 2021 57071-xxx 

57211Nxxx 

57073-xxx 

1 The "x" used in this figure can be any combination and number of numerals and letters. 
Federal Register / Vol. 87, No. 78 / Friday, April 22, 2022 / Proposed Rules 24077 

(3) Lufthansa Technik Design Change 

Summary BCP–35–DCS–01, dated January 5, 

2021. 

(4) Lufthansa Technik Design Change 

Summary BCQ–35–DCS–01, dated January 7, 

2021. 

(5) Lufthansa Technik Design Change 

Summary BCR–35–DCS–01, dated January 7, 

2021. 

(6) Lufthansa Technik Design Change 

Summary BCX–35–DCS–01, dated January 7, 

2021. 

(j) 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 

responsible Flight Standards 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 

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 the 

European Union Aviation Safety Agency 

(EASA); or Lufthansa Technik AG’s EASA 

Design Organization Approval (DOA). If 

approved by the DOA, the approval must 

include the DOA-authorized signature. 

(k) Related Information 

(1) Refer to Mandatory Continuing 

Airworthiness Information (MCAI) EASA AD 

2021–0135, dated June 2, 2021, for related 

information. This MCAI may be found in the 

AD docket on the internet at https://

www.regulations.gov by searching for and 

locating Docket No. FAA–2022–0462. 

(2) For more information about this AD, 

contact Chirayu Gupta, 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-nyacocos@faa.gov. 

(3) For service information identified in 

this AD, contact Lufthansa Technik AG, Weg 

beim Ja ̈ger 193 22335 Hamburg, Germany; 

telephone 49–40–5070–67428; internet 

https://www.lufthansa-technik.com. You may 

view this service information 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. 

Issued on April 11, 2022. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–08584 Filed 4–21–22; 8:45 am] 

BILLING CODE 4910–13–C 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–1074; Project 

Identifier MCAI–2021–00447–R] 

RIN 2120–AA64 

Airworthiness Directives; Bell Textron 

Canada Limited Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Supplemental notice of 

proposed rulemaking (SNPRM). 

SUMMARY: The FAA is revising a notice 

of proposed rulemaking (NPRM) that 

applied to certain Bell Textron Canada 

Limited Model 429 helicopters. This 

action revises the NPRM by revising the 

Required Actions paragraphs to include 

calendar compliance times. The FAA is 

proposing this airworthiness directive 

(AD) to address the unsafe condition on 

these products. Since these actions 

would impose an additional burden 

over those in the NPRM, the agency is 

requesting comments on this SNPRM. 

DATES: The FAA must receive comments 

on this SNPRM by June 6, 2022. 

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

Monday through Friday, except Federal 

holidays. 

For service information identified in 

this SNPRM, contact Bell Textron 

Canada Limited, 12,800 Rue de l’Avenir, 

Mirabel, Quebec J7J 1R4, Canada; 

telephone 1–450–437–2862 or 1–800– 

363–8023; fax 1–450–433–0272; email 

productsupport@bellflight.com; or at 

https://www.bellflight.com/support/ 

contact-support. 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. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–1074; or in person at Docket 

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

Monday through Friday, except Federal 

holidays. The AD docket contains the 

NPRM, this SNPRM, the Transport 

Canada AD, any comments received, 

and other information. The street 

address for Docket Operations is listed 

above. 

FOR FURTHER INFORMATION CONTACT: 

Andrea Jimenez, Aerospace Engineer, 

COS Program Management Section, 

Operational Safety Branch, Compliance 

& Airworthiness Division, FAA, 1600 

Stewart Ave., Suite 410, Westbury, NY 

11590; telephone (516) 228–7330; email 

andrea.jimenez@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–2021–1074; Project Identifier 

MCAI–2021–00447–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 again revise 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 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 SNPRM 

contain commercial or financial 

information that is customarily treated 

as private, that you actually treat as 


lotter on DSK11XQN23PROD with PROPOSALS1