2362 Federal Register / Vol. 87, No. 10 / Friday, January 14, 2022 / Proposed Rules 

This RIS emphasizes that operational 

leakage must be addressed in the same 

manner as leakage detected during an 

ASME BPVC, Section XI, pressure test. 

That is, when operational leakage is 

found in a system that is within the 

scope of ASME BPVC, Section XI, and 

is required to be operable by plant TS, 

the component must be evaluated by the 

licensee for operability. Structural 

integrity determinations must be 

conducted in accordance with the 

applicable provisions of the original 

construction code, the ASME BPVC, 

Section XI, or otherwise addressed 

through authorized methods. This 

entails evaluation in accordance with an 

NRC-approved Code Case; the use of 

Nonmandatory Appendix U of ASME 

BPVC, Section XI; or a repair/ 

replacement activity. 

The NRC issues RISs to communicate 

with stakeholders on a broad range of 

matters. This may include 

communication and clarification of NRC 

technical or policy positions on 

regulatory matters that have not been 

communicated to or are not broadly 

understood by the nuclear industry. 

As noted in ‘‘Relocation of Regulatory 

Issue Summary Notices in the Federal 

Register’’ (May 8, 2018, 83 FR 20858), 

this document is being published in the 

Proposed Rules section of the Federal 

Register to comply with publication 

requirements under 1 CFR chapter I. 

II. Proposed Action 

The NRC is requesting public 

comments on the draft RIS. The NRC 

plans to hold a public meeting to 

discuss this RIS and the issues 

associated with it. Additional details 

regarding the meeting will be posted at 

least 10 days prior to the public meeting 

on the NRC’s Public Meeting Schedule 

website at https://www.nrc.gov/publicinvolve/public-meetings/index.cfm. All 

comments that are to receive 

consideration in the final RIS must still 

be submitted electronically or in writing 

as indicated in the ADDRESSES section of 

this document. 

The NRC staff will make a final 

determination regarding issuance of the 

RIS after it considers any public 

comments received in response to this 

request. 

Dated: January 11, 2022. 

For the Nuclear Regulatory Commission. 

Lisa M. Regner, 

Chief, Generic Communications and 

Operating Experience Branch, Division of 

Reactor Oversight, Office of Nuclear 

Regulatory Research. 

[FR Doc. 2022–00686 Filed 1–13–22; 8:45 am] 

BILLING CODE 7590–01–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–1178; Project 

Identifier MCAI–2021–00986–R] 

RIN 2120–AA64 

Airworthiness Directives; Bell Textron 

Canada Limited (Type Certificate 

Previously Held by Bell Helicopter 

Textron Canada Limited) Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to 

supersede Airworthiness Directive (AD) 

2020–20–06, which applies to certain 

Bell Helicopter Textron Canada Limited 

(now Bell Textron Canada Limited) 

Model 429 helicopters. AD 2020–20–06 

requires repetitive inspections of certain 

cyclic and collective assembly bearings. 

Since the FAA issued AD 2020–20–06, 

the collective and cyclic bellcrank 

assemblies have been upgraded with 

corrosion resistant steel bearings. This 

proposed AD would retain some of the 

requirements of AD 2020–20–06 and 

depending on the inspection results, 

would require removing certain parts 

from service and installing the upgraded 

cyclic and collective bellcrank 

assemblies. This proposed AD would 

also require installing the upgraded 

collective and cyclic bellcrank 

assemblies on certain helicopters if not 

already installed, and would prohibit 

installing certain bellcrank assemblies. 

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 February 28, 

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 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–2021–1178; 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, 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–2021–1178; Project Identifier 

MCAI–2021–00986–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 NPRM. 

Confidential Business Information 

CBI is commercial or financial 

information that is both customarily and 

actually treated as private by its owner. 


lotter on DSK11XQN23PROD with PROPOSALS1
Federal Register / Vol. 87, No. 10 / Friday, January 14, 2022 / Proposed Rules 2363 

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 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. 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 FAA issued AD 2020–20–06, 

Amendment 39–21262 (85 FR 60356, 

September 25, 2020) (AD 2020–20–06), 

for Bell Helicopter Textron Canada 

Limited Model 429 helicopters with a 

bellcrank assembly part number (P/N) 

429–001–523–101, 429–001–523–103, 

429–001–532–101, or 429–001–532–103 

installed. AD 2020–20–06 requires 

within 12 months after the helicopter 

was manufactured or 30 days after the 

effective date of AD 2020–20–06, 

whichever occurs later, and thereafter at 

intervals not to exceed 6 months, 

disconnecting the forward ends of the 

collective control tube, longitudinal 

stability and control augmentation 

system (SCAS) actuator, and lateral 

SCAS actuator and stowing the 

collective control tube and each SCAS 

actuator to prevent binding. AD 2020– 

20–06 requires slowly moving the cyclic 

fore/aft and laterally, and the collective 

up/down from stop to stop to determine 

if there is any roughness. If there is any 

roughness in the flight control system, 

AD 2020–20–06 requires, before further 

flight, replacing the six pivot bearings in 

the collective lateral bellcrank assembly 

and the longitudinal bellcrank 

assembly. Finally, AD 2020–20–06 

requires inspecting each arm end 

bearing at the end of the collective, 

lateral, and longitudinal arm assemblies 

by rotating each bearing and ensuring 

each bearing rotates freely. If there is 

any binding in any arm end bearing or 

on the longitudinal bellcrank assembly, 

AD 2020–20–06 requires replacing each 

arm end bearing before further flight. 

AD 2020–20–06 was prompted by 

Transport Canada AD CF–2016–11R2, 

dated October 18, 2017 (Transport 

Canada AD CF–2016–11R2), issued by 

Transport Canada, which is the aviation 

authority for Canada, to correct an 

unsafe condition for Bell Helicopter 

Textron Canada Model 429 helicopters 

equipped with a bellcrank assembly P/ 

N 429–001–523–101, 429–001–523–103, 

429–001–532–101, or 429–001–532– 

103. Transport Canada advised that inservice reports show that bearings in the 

roof-mounted flight control bellcranks 

are adversely affected by precipitation. 

Pooling can occur at the forward portion 

of the roof, providing a source of 

contamination for bearings in the roofmounted flight controls. Precipitation 

may reduce the effectiveness of the 

grease in the bearings, allowing 

corrosion to occur. This can result in 

intermittent restrictions, such as 

binding and roughness in the flight 

controls. Transport Canada also advised 

that an undetected corroded bearing 

could lead to restrictions in the 

collective, directional, or pitch control 

systems, resulting in difficulty 

controlling the helicopter. 

Transport Canada AD CF–2016–11R2 

required within 12 months after the 

helicopter was manufactured and 

thereafter at intervals not to exceed 6 

months, inspecting the flight controls 

and replacing any discrepant bearings. If 

the helicopter’s age exceeded 12 

months, Transport Canada AD CF– 

2016–11R2 required the 12-month 

inspection within 30 days. Transport 

Canada AD CF–2016–11R2 also 

required, within 30 days, performing a 

functional check and replacement, if 

applicable, of the bearings if the most 

recent functional check of the helicopter 

was performed with the alternate 

procedure of using a hydraulic test 

stand or if the inspection method was 

unknown. 

Actions Since AD 2020–20–06 Was 

Issued 

Since the FAA issued AD 2020–20– 

06, Transport Canada issued AD CF– 

2016–11R3, dated August 30, 2021 

(Transport Canada AD CF–2016–11R3), 

which supersedes Transport Canada AD 

CF–2016–11R2. Transport Canada 

advises of new collective and cyclic 

bellcrank assemblies which have been 

upgraded with corrosion resistant steel 

bearings. 

Accordingly, Transport Canada AD 

CF–2016–11R3 requires, for certain 

serial-numbered helicopters, within 12 

months from the helicopter manufacture 

date, or for helicopters that have 

exceeded the age threshold of 12 

months from the helicopter 

manufacturer date, within 30 days, and 

thereafter at intervals not to exceed 6 

months, performing a functional check 

of the flight controls to detect roughness 

in the pivot bearings and binding of the 

collective, lateral, or longitudinal arm 

end bearings of the bellcrank 

assemblies. If any roughness or binding 

is detected, Transport Canada AD CF– 

2016–11R3 requires replacement of each 

affected bellcrank assembly before 

further flight. Transport Canada AD CF– 

2016–11R3 also requires, within 24 

months, installing the upgraded 

collective and cyclic bellcrank 

assemblies and considers this action a 

terminating action to the recurring 

inspections. Finally, Transport Canada 

AD CF–2016–11R3 prohibits an affected 

bellcrank assembly from being installed 

on any helicopter. 

FAA’s Determination 

These helicopters have been approved 

by the aviation authority of Canada and 

are approved for operation in the United 

States. Pursuant to the FAA’s bilateral 

agreement with Canada, Transport 

Canada, its technical representative, has 

notified the FAA of 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 

The FAA reviewed Bell Technical 

Bulletin 429–18–58, Revision B, dated 

August 23, 2021 (TB 429–18–58 Rev B), 

which specifies procedures to upgrade 

certain part-numbered bellcrank 

assemblies to the bellcrank assemblies 

that utilize the corrosion resistant steel 

bearings. 

The FAA also reviewed Bell 

Helicopter Alert Service Bulletin 429– 

15–21, Revision C, dated August 23, 

2021 (ASB 429–15–21 Rev C), which 

specifies moving the cyclic stick fore, 

aft, and laterally, and the collective stick 

up and down from stop to stop to detect 

deteriorated pivot bearings. ASB 429– 

15–21 Rev C also specifies inspecting to 

determine whether the bearings in the 

collective, lateral, and longitudinal arm 

assemblies rotate freely. If discrepant 

arm bearings are found, ASB 429–15–21 

Rev C specifies contacting Bell Product 

Support Engineering to report the 

findings and replacing the discrepant 

parts with serviceable parts. 


lotter on DSK11XQN23PROD with PROPOSALS1
2364 Federal Register / Vol. 87, No. 10 / Friday, January 14, 2022 / Proposed Rules 

Proposed AD Requirements in This 

NPRM 

This proposed AD would retain some 

of the requirements of AD 2020–20–06. 

This proposed AD would require, for 

certain serial-numbered helicopters, 

within 12 months after the helicopter 

was manufactured or 30 days after the 

effective date of this AD, whichever 

occurs later, and thereafter at intervals 

not to exceed 6 months, disconnecting 

certain parts, stowing certain parts to 

prevent binding, and moving the cyclic 

stick and the collective stick to inspect 

for roughness in the flight control 

system and binding in the collective, 

lateral, and longitudinal arm assemblies. 

If any of these conditions exist, this 

proposed AD would require, before 

further flight, removing certain parts 

from service and installing upgraded 

bellcrank assemblies. 

This proposed AD would also require, 

for certain serial-numbered helicopters 

that do not have the upgraded bellcrank 

assemblies installed, within 24 months 

after the effective date of this AD, 

installing the upgraded bellcrank 

assemblies, which would provide a 

terminating action for the recurring 

inspections. Finally, this proposed AD 

would prohibit installing any affected 

bellcrank assembly on any helicopter. 

Differences Between This Proposed AD 

and Transport Canada AD CF–2016– 

11R3 

Transport Canada AD CF–2016–11R3 

provides requirements if the most recent 

functional check was performed using a 

hydraulic test stand as an alternate 

procedure. This proposed AD provides 

no such alternate procedure. Transport 

Canada AD CF–2016–11R3 provides 

requirements for helicopters that have 

exceeded the age threshold of 12 

months from the helicopter 

manufacturer date to complete the 

initial functional check within 30 days 

from the effective date of its AD. This 

proposed AD would require the initial 

inspection within 12 months after the 

helicopter was manufactured or 30 days 

after the effective date of this proposed 

AD, whichever occurs later. Transport 

Canada AD CF–2016–11R3 allows credit 

for the corrective actions of Part I if the 

initial functional check was 

accomplished prior to the effective date 

of Transport Canada AD CF–2016–11R3, 

whereas this proposed AD does not. 

Costs of Compliance 

The FAA estimates that this AD, if 

adopted as proposed, would affect 64 

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 proposed AD. 

Inspecting the cyclic and the 

collective bellcrank assemblies for 

roughness in the pivot bearings and 

binding in the collective, lateral, and 

longitudinal arm end bearings would 

take about 3 work-hours for an 

estimated cost of $255 per inspection 

cycle. 

Installing the upgraded collective and 

cyclic bellcrank assemblies would take 

about 18 work-hours and parts would 

cost about $1,750 for an estimated cost 

of $3,280 per upgrade installation. 

The FAA has included all known 

costs in its cost estimate. According to 

the manufacturer, however, some of the 

costs of this proposed AD may be 

covered under warranty, thereby 

reducing the cost impact on affected 

operators. 

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, 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: 

■ a. Removing Airworthiness Directive 

2020–20–06, Amendment 39–21262 (85 

FR 60356, September 25, 2020); and 

■ b. Adding the following new 

airworthiness directive: 

Bell Textron Canada Limited (Type 

Certificate Previously Held by Bell 

Helicopter Textron Canada Limited): 

Docket No. FAA–2021–1178; Project 

Identifier MCAI–2021–00986–R. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) action by 

February 28, 2022. 

(b) Affected ADs 

This AD replaces AD 2020–20–06, 

Amendment 39–21262 (85 FR 60356, 

September 25, 2020) (AD 2020–20–06). 

(c) Applicability 

This AD applies to Bell Textron Canada 

Limited (type certificate previously held by 

Bell Helicopter Textron Canada Limited) 

Model 429 helicopters, certificated in any 

category, with a bellcrank assembly part 

number (P/N) 429–001–523–101, 429–001– 

523–103, 429–001–532–101, or 429–001– 

532–103 installed. 

(d) Subject 

Joint Aircraft Service Component (JASC) 

Code: 2700, Flight Control System. 

(e) Unsafe Condition 

This AD was prompted by new bellcrank 

assemblies, which have been upgraded with 

corrosion resistant steel bearings. The FAA is 

issuing this AD to prevent corrosion of the 

bearings due to pooling at the bellcrank 

assembly from precipitation in the forward 

portion of the roof structure. The unsafe 

condition, if not addressed, could result in 

restrictions in the collective, directional, or 

pitch control systems, and subsequent loss of 

helicopter control. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 


lotter on DSK11XQN23PROD with PROPOSALS1
Federal Register / Vol. 87, No. 10 / Friday, January 14, 2022 / Proposed Rules 2365 

(g) Required Actions 

(1) For Model 429 helicopters serial 

number (S/N) 57001 through 57296 

inclusive, within 12 months after the 

helicopter was manufactured or 30 days after 

the effective date of this AD, whichever 

occurs later, and thereafter at intervals not to 

exceed 6 months: 

(i) Disconnect the forward ends of the 

collective control tube, longitudinal stability 

and control augmentation system (SCAS) 

actuator, and lateral SCAS actuator. Stow the 

collective control tube and each SCAS 

actuator to prevent binding. 

(ii) Move the cyclic stick fore, aft, and 

laterally, and the collective stick up and 

down from stop to stop to determine if there 

is any roughness. If there is any roughness in 

the flight control system, before further flight, 

remove each pivot bearing P/N MS27646–41, 

each arm assembly bearing P/N MS27643–4, 

and each sleeve P/N 120–13–4A from service 

and install bellcrank assemblies P/N 429– 

001–523–101FM and 429–001–532–101FM; 

or 429–001–523–107FM and 429–001–532– 

107FM; or 429–001–523–107 and 429–001– 

532–107. 

(iii) Inspect the collective arm assembly 

P/N 429–001–525–101, the lateral arm 

assembly P/N 429–001–527–101, and the 

longitudinal arm assembly P/N 429–001– 

530–101, by rotating each bearing and 

determining whether each bearing rotates 

freely. If there is any binding in any arm end 

bearing or on the longitudinal bellcrank 

assembly, before further flight, remove each 

pivot bearing P/N MS27646–41, each arm 

assembly bearing P/N MS27643–4, and each 

sleeve P/N 120–13–4A from service and 

install bellcrank assemblies P/N 429–001– 

523–101FM and 429–001–532–101FM; or 

429–001–523–107FM and 429–001–532– 

107FM; or 429–001–523–107 and 429–001– 

532–107. 

(2) For Model 429 helicopters S/N 57001 

through 57296 inclusive, unless already 

accomplished by following paragraphs 

(g)(1)(ii) or (iii) of this AD, within 24 months 

after the effective date of this AD, install 

bellcrank assemblies P/N 429–001–523– 

101FM and 429–001–532–101FM; or 429– 

001–523–107FM and 429–001–532–107FM; 

or 429–001–523–107 and 429–001–532–107. 

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

installing bellcrank assemblies P/N 429–001– 

523–101FM and 429–001–532–101FM; or 

429–001–523–107FM and 429–001–532– 

107FM; or 429–001–523–107 and 429–001– 

532–107, constitutes a terminating action for 

the recurring inspections required by 

paragraph (g)(1) of this AD. 

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

not install any bellcrank assembly P/N 429– 

001–523–101, 429–001–523–103, 429–001– 

532–101 or 429–001–532–103 on any 

helicopter. 

(h) Special Flight Permits 

Special flight permits are prohibited. 

(i) 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 International Validation 

Branch, send it to the attention of the person 

identified in paragraph (j)(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. 

(j) Related Information 

(1) For more information about this AD, 

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. 

(2) For service information identified in 

this AD, 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 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 on the availability 

of this material at the FAA, call (817) 222– 

5110. 

(3) The subject of this AD is addressed in 

Transport Canada AD CF–2016–11R3, dated 

August 30, 2021. You may view the 

Transport Canada AD on the internet at 

https://www.regulations.gov in Docket No. 

FAA–2021–1178. 

Issued on January 4, 2022. 

Ross Landes, 

Deputy Director for Regulatory Operations, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2022–00164 Filed 1–13–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–1071; Project 

Identifier AD–2021–01055–E] 

RIN 2120–AA64 

Airworthiness Directives; Rolls-Royce 

Corporation Turboshaft Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to 

supersede Airworthiness Directive (AD) 

2017–18–14, which applies to certain 

Rolls-Royce Corporation (RRC) 250 

model turboshaft engines. AD 2017–18– 

14 requires repetitive visual inspections 

and fluorescent penetrant inspections 

(FPIs) of the 3rd-stage turbine wheel and 

removal from service of the 4th-stage 

turbine wheel. Since the FAA issued AD 

2017–18–14, the manufacturer 

redesigned the 3rd-stage turbine wheel. 

This proposed AD would require 

replacement of the 3rd-stage and 4thstage turbine wheels. This proposed AD 

would also revise the applicability to 

add an additional turboshaft engine 

model. 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 February 28, 

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 Rolls-Royce 

Corporation, 450 South Meridian Street, 

Mail Code NB–01–06, Indianapolis, IN 

46225; phone: (317) 230–2720; email: 

HelicoptCustSupp@Rolls-Royce.com; 

website: www.rolls-royce.com. You may 

view this service information at the 

Airworthiness Products Section, 

Operational Safety Branch, FAA, 1200 

District Avenue, Burlington, MA 01803. 

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–2021–1071; 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: John 

Tallarovic, Aviation Safety Engineer, 

Chicago ACO, FAA, 2300 E Devon 

Avenue, Des Plaines, IL 60018; phone: 


lotter on DSK11XQN23PROD with PROPOSALS1