10112 Federal Register / Vol. 87, No. 36 / Wednesday, February 23, 2022 / Proposed Rules 

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: 

The Boeing Company: Docket No. FAA– 

2021–1168; Project Identifier AD–2021– 

00825–T. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by April 11, 

2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to The Boeing Company 

Model 737–8 airplanes, certificated in any 

category, as identified in Boeing Special 

Attention Requirements Bulletin 737–57– 

1352 RB, dated February 1, 2021. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 57, Wings. 

(e) Unsafe Condition 

This AD was prompted by a report that, 

during production, a small number of 

fasteners in certain locations of the center 

fuel tank were cap sealed on top of a black 

stripe of ink with a clear overcoat. This clear 

overcoat is not an approved surface for 

sealing and can potentially compromise 

sealant adhesion. Compromised sealant 

adhesion can, over time, affect the lightningprotection properties of the airplane. The 

FAA is issuing this AD to address 

compromised sealant adhesion within the 

center fuel tank, which, if not addressed, 

could result in ignition of fuel vapors and 

subsequent explosion of the fuel tank in the 

event of a lightning strike. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

Within 10 years after the date of issuance 

of the original airworthiness certificate or the 

original export certificate of airworthiness, 

do all applicable actions identified in, and in 

accordance with, the Accomplishment 

Instructions of Boeing Special Attention 

Requirements Bulletin 737–57–1352 RB, 

dated February 1, 2021. 

Note 1 to paragraph (g): Guidance for 

accomplishing the actions required by this 

AD can be found in Boeing Special Attention 

Service Bulletin 737–57–1352, dated 

February 1, 2021, which is referred to in 

Boeing Special Attention Requirements 

Bulletin 737–57–1352 RB, dated February 1, 

2021. 

(h) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Seattle 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 the attention of 

the person identified in Related Information. 

Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov. 

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the responsible Flight Standards Office. 

(3) An AMOC that provides an acceptable 

level of safety may be used for any repair, 

modification, or alteration required by this 

AD if it is approved by The Boeing Company 

Organization Designation Authorization 

(ODA) that has been authorized by the 

Manager, Seattle ACO Branch, FAA, to make 

those findings. To be approved, the repair 

method, modification deviation, or alteration 

deviation must meet the certification basis of 

the airplane, and the approval must 

specifically refer to this AD. 

(i) Related Information 

(1) For more information about this AD, 

contact Chris Baker, Aerospace Engineer, 

Propulsion Section, FAA, Seattle ACO 

Branch, 2200 South 216th St., Des Moines, 

WA 98198; phone and fax: 206–231–3552; 

email: christopher.r.baker@faa.gov. 

(2) For service information identified in 

this AD, contact Boeing Commercial 

Airplanes, Attention: Contractual & Data 

Services (C&DS), 2600 Westminster Blvd., 

MC 110–SK57, Seal Beach, CA 90740–5600; 

telephone 562–797–1717; internet https://

www.myboeingfleet.com. You may view this 

referenced 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 December 21, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–03804 Filed 2–22–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0143; Project 

Identifier MCAI–2021–01401–T] 

RIN 2120–AA64 

Airworthiness Directives; De Havilland 

Aircraft of Canada Limited (Type 

Certificate Previously Held by 

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 De Havilland Aircraft of Canada 

Limited (type certificate previously held 

by Bombardier, Inc.) Model DHC–8–401 

and –402 airplanes. This proposed AD 

was prompted by reports of a certain 

bolt at the pivot pin link being found 

missing or having stress corrosion 

cracking. This proposed AD would 

require a modification to the nose 

landing gear (NLG) shock strut 

assembly. 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 April 11, 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 De Havilland 

Aircraft of Canada Limited, Q-Series 


khammond on DSKJM1Z7X2PROD with PROPOSALS
Federal Register / Vol. 87, No. 36 / Wednesday, February 23, 2022 / Proposed Rules 10113 

Technical Help Desk, 123 Garratt 

Boulevard, Toronto, Ontario M3K 1Y5, 

Canada; telephone 416–375–4000; fax 

416–375–4539; email thd@

dehavilland.com; internet https://

dehavilland.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–2022–0143; 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: 

Antariksh Shetty, Aerospace Engineer, 

Airframe and Propulsion Section, FAA, 

New York ACO Branch, 1600 Stewart 

Avenue, Suite 410, Westbury, NY 

11590; telephone 516–228–7300; 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–2022–0143; Project Identifier 

MCAI–2021–01401–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 Antariksh Shetty, 

Aerospace Engineer, Airframe and 

Propulsion Section, FAA, New York 

ACO Branch, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; 

telephone 516–228–7300; email 9-avsnyaco-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 

Transport Canada Civil Aviation 

(TCCA), which is the aviation authority 

for Canada, has issued TCCA AD CF– 

2009–29R4, dated October 1, 2021 

(TCCA AD CF–2009–29R4) (also 

referred to after this as the Mandatory 

Continuing Airworthiness Information, 

or the MCAI), to correct an unsafe 

condition for certain De Havilland 

Aircraft of Canada Limited Model DHC– 

8–401 and –402 airplanes. You may 

examine the MCAI in the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0143. 

The FAA issued AD 2021–25–12, 

Amendment 39–21856 (86 FR 72174, 

December 21, 2021) (AD 2021–25–12), 

for certain De Havilland Aircraft of 

Canada Limited Model DHC–8–401 and 

–402 airplanes. AD 2021–25–12 requires 

repetitive lubrications of the trailing 

arm of the NLG, which include a general 

visual inspection of the NLG pivot pin 

mechanism for discrepancies and 

replacement of missing or damaged 

bolts. AD 2021–25–12 also requires 

revising the existing maintenance or 

inspection program to include new and 

revised airworthiness limitations (life 

limits for certain bolts). AD 2021–25–12 

corresponds to TCCA AD CF–2009– 

29R4, except AD 2021–25–12 does not 

include the modification to the NLG 

shock strut assembly specified in Part I 

of TCCA AD CF–2009–29R4. AD 2021– 

25–12 explained that the FAA was 

considering further rulemaking to 

require the modification. The FAA has 

now determined that further rulemaking 

is necessary, and this proposed AD 

follows from that determination. 

The FAA is proposing this AD to 

address failure of the pivot pin retention 

bolt, which could result in a loss of 

directional control or loss of an NLG tire 

during takeoff or landing, which could 

lead to runway excursions. See the 

MCAI for additional background 

information. 

Relationship Between Proposed AD and 

AD 2021–25–12 

This NPRM does not propose to 

supersede AD 2021–25–12. Rather, the 

FAA has determined that a stand-alone 

AD would be more appropriate. This 

proposed AD would require the 

modification specified in Part I of TCCA 

AD CF–2009–29R4 that was not 

included in AD 2021–25–12. 

Related Service Information Under 1 

CFR Part 51 

De Havilland Aircraft of Canada 

Limited has issued Service Bulletin 84– 

32–161, Revision B, dated March 31, 

2021, including UTC Aerospace 

Systems Service Bulletin 47100–32–145, 

Revision 3, dated March 26, 2021. This 

service information describes 

procedures for modifying the NLG 

shock strut assembly by replacing 

special bolt, part number (P/N) 47205– 

1 or 47205–3, with a new retention bolt, 

P/N NAS6204–14D (the modification 

includes a reverse orientation of the 

retention bolt and a rework of the 

weight on wheel (WOW) proximity 

sensor cover to provide clearance for the 

re-oriented retention bolt). 

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. 


khammond on DSKJM1Z7X2PROD with PROPOSALS
10114 Federal Register / Vol. 87, No. 36 / Wednesday, February 23, 2022 / Proposed Rules 

Differences Between This Proposed AD 

and the MCAI or Service Information 

This proposed AD would only require 

the modification specified in Part I of 

TCCA AD CF–2009–29R4. The other 

actions specified in TCCA AD CF–2009– 

29R4 are required by FAA AD 2021–25– 

12. 

Costs of Compliance 

The FAA estimates that this AD, if 

adopted as proposed, would affect 54 

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 

4 work-hours × $85 per hour = $340 .......................................................................................... $8 $348 $18,792 

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: 

De Havilland Aircraft of Canada Limited 

(Type Certificate Previously Held by 

Bombardier, Inc.): Docket No. FAA– 

2022–0143; Project Identifier MCAI– 

2021–01401–T. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by April 11, 

2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to De Havilland Aircraft 

of Canada Limited (type certificate 

previously held by Bombardier, Inc.) Model 

DHC–8–401 and –402 airplanes, certificated 

in any category, serial numbers 4001 and 

4003 and subsequent. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 32, Landing gear. 

(e) Unsafe Condition 

This AD was prompted by reports of a 

certain bolt at the pivot pin link being found 

missing or having stress corrosion cracking. 

The FAA is issuing this AD to address failure 

of the pivot pin retention bolt, which could 

result in a loss of directional control or loss 

of a nose landing gear (NLG) tire during 

takeoff or landing, which could lead to 

runway excursions. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Modification 

For any airplane having an NLG shock 

strut assembly, part number (P/N) 47100–XX 

(where XX represents any number), that has 

special bolt P/N 47205–1 or 47205–3: Within 

1,600 flight cycles or 9 months after the 

effective date of this AD, whichever occurs 

first, modify the NLG shock strut assembly, 

in accordance with paragraph 3.B., 

‘‘Procedure,’’ of the Accomplishment 

Instructions of De Havilland Aircraft of 

Canada Limited Service Bulletin 84–32–161, 

Revision B, dated March 31, 2021, including 

UTC Aerospace Systems Service Bulletin 

47100–32–145, Revision 3, dated March 26, 

2021. 

(h) 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 De Havilland Aircraft 

of Canada Limited Service Bulletin 84–32– 

161, dated April 7, 2020, including UTC 

Aerospace Systems Service Bulletin 47100– 

32–145, dated April 3, 2020; or De Havilland 

Aircraft of Canada Limited Service Bulletin 

84–32–161, Revision A, dated January 27, 

2021, including UTC Aerospace Systems 

Service Bulletin 47100–32–145, Revision 2, 

dated January 4, 2021. 

(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 

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, New York ACO Branch, 

FAA; or Transport Canada Civil Aviation 


khammond on DSKJM1Z7X2PROD with PROPOSALS
Federal Register / Vol. 87, No. 36 / Wednesday, February 23, 2022 / Proposed Rules 10115 

(TCCA); or De Havilland Aircraft of Canada 

Limited’s TCCA Design Approval 

Organization (DAO). If approved by the DAO, 

the approval must include the DAOauthorized signature. 

(j) Related Information 

(1) Refer to Mandatory Continuing 

Airworthiness Information (MCAI) TCCA AD 

CF–2009–29R4, dated October 1, 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–2022–0143. 

(2) For more information about this AD, 

contact Antariksh Shetty, Aerospace 

Engineer, Airframe and Propulsion 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. 

(3) For service information identified in 

this AD, contact De Havilland Aircraft of 

Canada Limited, Q-Series Technical Help 

Desk, 123 Garratt Boulevard, Toronto, 

Ontario M3K 1Y5, Canada; telephone 416– 

375–4000; fax 416–375–4539; email thd@

dehavilland.com; internet https://

dehavilland.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 February 15, 2022. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–03718 Filed 2–22–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0146; Project 

Identifier AD–2021–00449–R] 

RIN 2120–AA64 

Airworthiness Directives; Sikorsky 

Aircraft Corporation Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to 

supersede Airworthiness Directive (AD) 

2020–26–13, which applies to certain 

Sikorsky Aircraft Corporation (Sikorsky) 

Model S–92A helicopters. AD 2020–26– 

13 requires establishing the life limit for 

certain part-numbered horizontal 

stabilizer root fittings FWD (forward 

root fittings) and certain part-numbered 

stabilizer strut fittings. AD 2020–26–13 

also requires repetitively inspecting 

certain parts, and depending on the 

inspection results, removing parts from 

service. Finally AD 2020–26–13 

prohibits installing certain stabilizer 

assemblies on any helicopter. Since the 

FAA issued AD 2020–26–13, the 

manufacturer notified the FAA that due 

to an error in the service information, 

certain part numbers in AD 2020–26–13 

are incorrect. Also, the FAA determined 

that additional inspections are required 

to address the unsafe condition. This 

proposed AD would retain certain 

requirements and the prohibition for 

installing certain stabilizer assemblies 

on any helicopter from AD 2020–26–13 

and would correct certain part numbers 

and require additional repetitive 

inspections. 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 April 11, 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 Sikorsky’s 

Engineering Group at Sikorsky Aircraft 

Corporation, 124 Quarry Road, 

Trumbell, CT 06611, United States; 

phone: (800) 946–4337; email: wcs_

cust_service_eng.gr-sik@lmco.com; 

website: www.sikorsky360.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. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0146; 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: 

Dorie Resnik, Aerospace Engineer, 

Aviation Safety Section, Boston ACO 

Branch, Compliance & Airworthiness 

Division, 1200 District Avenue, 

Burlington, MA 01803; telephone (781) 

238–7693; email 9-AVS-AIR-BACOCOS@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–2022–0146; Project Identifier AD– 

2021–00449–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 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 Dorie Resnik, 

Aerospace Engineer, Aviation Safety 

Section, Boston ACO Branch, 

Compliance & Airworthiness Division, 

1200 District Avenue, Burlington, MA 

01803; telephone (781) 238–7693; email 

9-AVS-AIR-BACO-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. 


khammond on DSKJM1Z7X2PROD with PROPOSALS