16120 Federal Register / Vol. 87, No. 55 / Tuesday, March 22, 2022 / Proposed Rules 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

British Aerospace (Operations) Limited and 

British Aerospace Regional Aircraft: 

Docket No. FAA–2022–0285; Project 

Identifier MCAI–2021–01448–A. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by May 6, 2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to British Aerospace 

(Operations) Limited Model Jetstream Model 

3101 and British Aerospace Regional Aircraft 

Model Jetstream Model 3201 airplanes, all 

serial numbers, certificated in any category. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 2720, Rudder Control System, and 

2730, Elevator Control System. 

(e) Unsafe Condition 

This AD was prompted by mandatory 

continuing airworthiness information (MCAI) 

originated by an aviation authority of another 

country to identify and correct an unsafe 

condition on an aviation product. The MCAI 

identifies the unsafe condition as stress 

corrosion cracking of the primary flight 

control cable terminal. The FAA is issuing 

this AD to detect and correct corrosion, 

pitting, or cracking in the primary flight 

control cable terminals. The unsafe 

condition, if not addressed, could result in 

failure of the primary flight control cable 

terminal and loss of airplane control. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

(1) Before any primary rudder or primary 

elevator flight control circuit cable 

accumulates 16 years since first installation 

on an airplane or within 12 months after the 

effective date of this AD, whichever occurs 

later, and thereafter at intervals not to exceed 

24 months, inspect all threaded turnbuckle 

type control cable terminals for signs of 

corrosion, pitting, and cracking by following 

paragraph (2) in Section 2.B. Part 1 and 

Section 2.B. Part 2 of the Accomplishment 

Instructions in British Aerospace Jetstream 

Series 3100 & 3200 Service Bulletin 27– 

JA181040, Original Issue, dated January 17, 

2019 (SB 27–JA181040). If the age of any 

primary rudder or primary elevator flight 

control circuit cable is unknown, do the 

inspection within 12 months after the 

effective date of this AD and thereafter at 

intervals not to exceed 24 months. 

(2) If, during any inspection required by 

paragraph (g)(1) of this AD, there is pitting 

or cracking or corrosion that exceeds 

minimum damage limits, before further 

flight, replace the affected cable assembly 

with a new (zero hours time-in-service) cable 

assembly. 

(3) Replacing a cable assembly does not 

terminate the inspections required by this 

AD. After replacing a cable assembly, do the 

inspection in paragraph (g)(1) of this AD 

before the cable assembly accumulates 15 

years since first installation on an airplane 

and thereafter at intervals not to exceed 24 

months. 

(h) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, International Validation 

Branch, FAA, has the authority to approve 

AMOCs for this AD, if requested using the 

procedures found in 14 CFR 39.19. In 

accordance with 14 CFR 39.19, send your 

request to your principal inspector or local 

Flight Standards District Office, as 

appropriate. If sending information directly 

to the manager of the certification office, 

send it to the attention of the person 

identified in paragraph (i)(1) of this AD and 

email to: 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. 

(i) Related Information 

(1) For more information about this AD, 

contact Doug Rudolph, Aviation Safety 

Engineer, General Aviation & Rotorcraft 

Section, International Validation Branch, 

FAA, 901 Locust, Room 301, Kansas City, 

MO 64106; phone: (816) 329–4059; email: 

doug.rudolph@faa.gov. 

(2) Refer to Civil Aviation Authority (CAA) 

AD G–2021–0017, dated December 21, 2021, 

for more information. You may examine the 

CAA AD in the AD docket at https://

www.regulations.gov by searching for and 

locating Docket No. FAA–2022–0285. 

(3) For service information identified in 

this AD, contact BAE Systems (Operations) 

Ltd., Customer Information Department, 

Prestwick International Airport, Ayrshire, 

KA9 2RW, Scotland, United Kingdom; 

phone: +44 3300 488727; fax: +44 1292 

675704; email: RApublications@

baesystems.com; website: https://

www.baesystems.com/businesses/ 

regionalaircraft/. You may view this 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 (817) 222–5110. 

Issued on March 11, 2022. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–05673 Filed 3–21–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0281; Project 

Identifier MCAI–2021–01315–R] 

RIN 2120–AA64 

Airworthiness Directives; Leonardo 

S.p.a. Helicopters 

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 Leonardo S.p.a. Model A109S 

and AW109SP helicopters. This 

proposed AD was prompted by a report 

of a protective sheath, installed around 

a fixed flight control rod, which should 

have been removed during assembly. 

This proposed AD would require 

borescope inspecting certain parts, and 

removing any foreign object if detected, 

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 May 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 EASA material that is proposed 

for IBR in this AD, contact EASA, 

Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 

8999 000; email ADs@easa.europa.eu; 

internet www.easa.europa.eu. You may 

find the EASA material on the EASA 

website at https://ad.easa.europa.eu. 

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. This material is 


lotter on DSK11XQN23PROD with PROPOSALS1
Federal Register / Vol. 87, No. 55 / Tuesday, March 22, 2022 / Proposed Rules 16121 

also available at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2022– 

0281. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0281; 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 EASA 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–2022–0281; Project Identifier 

MCAI–2021–01315–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. 

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 that 

is not specifically designated as CBI will 

be placed in the public docket for this 

rulemaking. 

Background 

EASA, which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA AD 2021–0255, 

dated November 15, 2021, and corrected 

November 24, 2021 (EASA AD 2021– 

0255), to correct an unsafe condition for 

Leonardo S.p.A. Helicopters Model 

A109S helicopters, serial number (S/N) 

22735, 22736, and 22737, and equipped 

with Trekker Kit; and Model AW109SP 

helicopters, S/N 22407, 22408, 22409, 

22412, 22414 to 22427 inclusive, and 

22429. 

This proposed AD was prompted by 

a report of a protective sheath, installed 

around a fixed flight control rod, which 

should have been removed during 

assembly. The FAA is proposing this 

AD to detect any foreign object 

contamination, which if not addressed, 

could affect the free movement of the 

flight controls and result in subsequent 

reduced control of the helicopter. See 

EASA AD 2021–0255 for additional 

background information. 

Related Service Information Under 1 

CFR Part 51 

EASA AD 2021–0255 specifies 

procedures for borescope inspecting 

certain part-numbered parts installed on 

the control rods and levers of the rotors 

flight controls, and removing any 

foreign object if detected. 

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. 

Other Related Service Information 

The FAA reviewed Leonardo 

Helicopters Alert Service Bulletin No. 

109SP–148, dated October 26, 2021 

(ASB 109SP–148). This service 

information specifies instructions for 

borescope inspecting certain partnumbered parts installed on the control 

rods and levers of the rotors flight 

controls of the left-hand and right-hand 

forward struts and removing foreign 

objects. 

The FAA also reviewed Leonardo 

Helicopters Alert Service Bulletin 

No.109S–104, dated October 26, 2021, 

which specifies the same instructions as 

ASB 109SP–148 but only applies to 

Model A109S helicopters with certain 

Trekker Kits installed. 

FAA’s Determination 

These helicopters have been approved 

by EASA and are approved for operation 

in the United States. Pursuant to the 

FAA’s bilateral agreement with the 

European Union, EASA has notified the 

FAA about the unsafe condition 

described in its AD. The FAA is 

proposing this AD after evaluating all 

known relevant information and 

determining that the unsafe condition 

described previously is likely to exist or 

develop on other helicopters of these 

same type designs. 

Proposed AD Requirements in This 

NPRM 

This proposed AD would require 

accomplishing the actions specified in 

EASA AD 2021–0255, described 

previously, as incorporated by 

reference, except for any differences 

identified as exceptions in the 

regulatory text of this proposed 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 some 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, the FAA proposes to 

incorporate EASA AD 2021–0255 by 

reference in the FAA final rule. This 

proposed AD would, therefore, require 

compliance with EASA AD 2021–0255 

in its entirety through that 

incorporation, except for any differences 

identified as exceptions in the 

regulatory text of this proposed AD. 

Using common terms that are the same 

as the heading of a particular section in 

EASA AD 2021–0255 does not mean 

that operators need comply only with 

that section. For example, where the AD 

requirement refers to ‘‘all required 

actions and compliance times,’’ 

compliance with this AD requirement is 

not limited to the section titled 

‘‘Required Action(s) and Compliance 

Time(s)’’ in EASA AD 2021–0255. 

Service information referenced in EASA 


lotter on DSK11XQN23PROD with PROPOSALS1
16122 Federal Register / Vol. 87, No. 55 / Tuesday, March 22, 2022 / Proposed Rules 

AD 2021–0255 for compliance will be 

available at https://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2022–0281 after the FAA final 

rule is published. 

Costs of Compliance 

The FAA estimates that this AD, if 

adopted as proposed, would affect 1 

helicopter 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. 

Borescope inspecting the control rods 

and levers of the rotor flight controls for 

any foreign object would take about 4 

work-hours for an estimated cost of 

$340 per inspection and $340 for the 

U.S. fleet. 

The FAA estimates the following 

costs to do any necessary on-condition 

corrective actions that would be 

required based on the results of the 

inspection: 

If required, removing any foreign 

object would take a minimal amount of 

time with a minimal parts cost. 

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: 

Leonardo S.p.a.: Docket No. FAA–2022– 

0281; Project Identifier MCAI–2021– 

01315–R. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by May 6, 2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Leonardo S.p.a. Model 

A109S helicopters, serial number (S/N) 

22735, 22736, and 22737, and equipped with 

Trekker Kit; and Model AW109SP 

helicopters S/N 22407, 22408, 22409, 22412, 

22414 through 22427 inclusive, and 22429, 

certificated in any category. 

(d) Subject 

Joint Aircraft Service Component (JASC) 

Code: 6700, rotorcraft Flight Control. 

(e) Unsafe Condition 

This AD was prompted by a report of a 

protective sheath, installed around a fixed 

flight control rod, which should have been 

removed during assembly. The FAA is 

issuing this AD to detect any foreign object 

contamination, which if not addressed, could 

affect the free movement of the flight controls 

and result in subsequent reduced control of 

the helicopter. 

(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, European Union Aviation 

Safety Agency (EASA) AD 2021–0255, dated 

November 15, 2021, and corrected November 

24, 2021 (EASA AD 2021–0255). 

(h) Exceptions to EASA AD 2021–0255 

(1) Where EASA AD 2021–0255 requires 

compliance in terms of flight hours, this AD 

requires using hours time-in-service. 

(2) Where EASA AD 2021–0255 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

(3) Where paragraph (1) of EASA AD 2021– 

0255 specifies ‘‘inspect each affected part in 

accordance with the instructions of the 

applicable ASB,’’ for this AD replace ‘‘in 

accordance with the instructions of the 

applicable ASB’’ with ‘‘in accordance with 

the Accomplishment Instructions, Section 3, 

paragraph 5. of the applicable ASB.’’ 

(4) Where paragraph (2) of EASA AD 2021– 

0255 specifies ‘‘if, during the inspection as 

required by paragraph (1) this AD, any 

foreign object is found on an affected part, 

before next flight, remove that foreign object 

in accordance with the applicable ASB,’’ this 

AD requires if any foreign object is found, 

before further flight, remove the foreign 

object. The instructions in the ‘‘applicable 

ASB’’ are for reference only and are not 

required for the actions in paragraph (2) of 

EASA AD 2021–0255. 

(5) This AD does not mandate compliance 

with the ‘‘Remarks’’ section of EASA AD 

2021–0255. 

(i) Special Flight Permit 

Special flight permits may be issued in 

accordance with 14 CFR 21.197 and 21.199, 

provided no passengers are onboard. 

(j) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, International Validation 

Branch, FAA, has the authority to approve 

AMOCs for this AD, if requested using the 

procedures found in 14 CFR 39.19. In 

accordance with 14 CFR 39.19, send your 

request to your principal inspector or local 

Flight Standards District Office, as 

appropriate. If sending information directly 

to the manager of the International Validation 

Branch, send it to the attention of the person 

identified in paragraph (k)(2) of this AD. 

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

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the local flight standards district office/ 

certificate holding district office. 

(k) Related Information 

(1) For EASA AD 2021–0255, contact 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 8999 

000; email ADs@easa.europa.eu; internet 

www.easa.europa.eu. You may 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. 

This material may be found in the AD docket 

at https://www.regulations.gov by searching 

for and locating Docket No. FAA–2022–0281. 


lotter on DSK11XQN23PROD with PROPOSALS1
Federal Register / Vol. 87, No. 55 / Tuesday, March 22, 2022 / Proposed Rules 16123 

(2) 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. 

Issued on March 10, 2022. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–05606 Filed 3–21–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0284; Project 

Identifier MCAI–2021–01369–A] 

RIN 2120–AA64 

Airworthiness Directives; Viking Air 

Limited (Type Certificate Previously 

Held by Bombardier Inc. and de 

Havilland, 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 Viking Air Limited (type 

certificate previously held by 

Bombardier Inc. and de Havilland, Inc.) 

Model DHC–6–1, DHC–6–100, DHC–6– 

200, DHC–6–300, and DHC–6–400 

airplanes. This proposed AD results 

from mandatory continuing 

airworthiness information (MCAI) 

originated by an aviation authority of 

another country to identify and correct 

an unsafe condition on an aviation 

product. The MCAI identifies the unsafe 

condition as binding of the rod end 

bearing connecting the lower fuel 

control unit (FCU) push rod assembly to 

the FCU power lever. This proposed AD 

would require performing tests, 

inspections, and lubrication of the FCU 

push rod assemblies, and replacing 

them with improved parts as necessary. 

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 May 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 Viking Air Ltd., 

1959 de Havilland Way, Sidney British 

Columbia, Canada V8L 5V5; phone: 

(800) 663–8444; email: 

continuing.airworthiness@

vikingair.com; website: https://

www.vikingair.com. You may view this 

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 (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–2022–0284; 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 MCAI, any comments 

received, and other information. The 

street address for Docket Operations is 

listed above. 

FOR FURTHER INFORMATION CONTACT: 

Elizabeth Dowling, Aviation Safety 

Engineer, FAA, New York ACO Branch, 

1600 Stewart Avenue, Suite 410, 

Westbury, NY 11590; phone: (516) 228– 

7300; email: elizabeth.m.dowling@

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 the ADDRESSES section. Include 

‘‘Docket No. FAA–2022–0284; Project 

Identifier MCAI–2021–01369–A’’ 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. 

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, 

Aviation Safety Engineer, New York 

ACO Branch, FAA, 1600 Stewart 

Avenue, Suite 410, Westbury, NY 

11590. 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, which is the 

aviation authority for Canada, has 

issued Transport Canada AD CF–2021– 

42, dated November 26, 2021 (referred 

to after this as ‘‘the MCAI’’), to address 

an unsafe condition on certain serialnumbered Viking Air Limited Model 

DHC–6 series 1, DHC–6 series 100, 

DHC–6 series 110, DHC–6 series 200, 

DHC–6 series 210, DHC–6 series 300, 

DHC–6 series 310, DHC–6 series 320, 

and DHC–6 series 400 airplanes with 

certain part-numbered FCU push rod 

assemblies installed. The MCAI states: 

There have been in-service reports of 

binding of [part number] P/N VSC30–3A rod 

end bearings used in the linkage for the lower 

FCU push rod assembly P/N C6CE1398–7. 

The lower FCU push rod assembly is 

connected to the FCU power lever and 

contains a rod end bearing at each end. P/N 

VSC30–3A rod end bearings, fabricated with 

a metal inner race and a dry film lubricant, 

have been incorporated on FCU push rod 

assemblies introduced through Viking Air 

Ltd (Viking) MOD 6/2347. P/N VSC30–3A 

rod end bearings may have also been 

installed in-service as a replacement part in 

lower FCU push rod assembly P/N 

C6CE1398–3. In one instance, binding of the 

lower FCU push rod bearing resulted in one 

engine failing to return to a lower power 

setting from a higher power setting when 


lotter on DSK11XQN23PROD with PROPOSALS1