3238 Federal Register / Vol. 87, No. 14 / Friday, January 21, 2022 / Proposed Rules 

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, 

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: 

Viking Air Limited (Type Certificate 

Previously Held by Bombardier Inc. and 

de Havilland, Inc.): Docket No. FAA– 

2020–1003; Project Identifier MCAI– 

2020–00962–A. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by March 7, 

2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to 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, all 

serial numbers, certificated in any category. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 5700, Wing Structure. 

(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 cracks and 

corrosion damage to the aileron internal 

structure. The FAA is issuing this AD to 

detect and correct cracks and other damage 

to the aileron internal structure. The unsafe 

condition, if not addressed, could result in 

progressive looseness of the aileron at the 

hinge support rib push-pull rod attachment, 

flutter condition, and degraded or loss of 

aileron control, which could lead to loss of 

control of the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Inspection and Replacement of the 

Aileron 

At the compliance time specified in 

paragraph (g)(1) or (2) of this AD, inspect the 

left-hand (LH) and right-hand (RH) aileron 

internal structures for cracks, corrosion, and 

other damage and take any necessary 

corrective actions in accordance with the 

Accomplishment Instructions, steps II.A. 

through II.A.3. of Viking DHC–6 Twin Otter 

Service Bulletin V6/0066, Revision A, dated 

December 9, 2019 (Viking SB V6/0066, 

Revision A). 

(1) For each LH or RH aileron that has 

accumulated 16,000 or more hours time-inservice (TIS), 32,000 or more flight cycles 

(FC), or 10 or more years since first 

installation on an airplane, whichever occurs 

first: Within 6 months after the effective date 

of this AD. 

(2) For each LH or RH aileron that has 

accumulated less than 16,000 hours TIS, less 

than 32,000 FC, and less than 10 years since 

first installation on an airplane: Within 6 

months after accumulating 16,000 hours TIS, 

32,000 FC, or 10 years, whichever occurs 

first. 

(h) Reporting Requirement 

Within 30 days after the inspection 

required by paragraph (g)(1) or (2) of this AD 

or within 30 days after the effective date of 

this AD, whichever occurs later, report to 

Viking the information requested on the 

Inspection Reply Form, page 7, of Viking SB 

V6/0066, Revision A. 

(i) Credit for Previous Actions 

You may take credit for the actions 

required by paragraphs (g)(1) and (2) of this 

AD if you performed those actions before the 

effective date of this AD using Viking DHC– 

6 Twin Otter Service Bulletin V6/0066, 

Revision NC, dated August 29, 2019. 

(j) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, New York ACO Branch, 

FAA, has the authority to approve AMOCs 

for this AD, if requested using the procedures 

found in 14 CFR 39.19. In accordance with 

14 CFR 39.19, send your request to your 

principal inspector or local Flight Standards 

District Office, as appropriate. If sending 

information directly to the manager of the 

certification office, send it to the attention of 

the person identified in paragraph (k)(1) of 

this AD. 

(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 more information about this AD, 

contact Deep Gaurav, Aviation Safety 

Engineer, New York ACO Branch, FAA, 1515 

Stewart Avenue, Westbury, NY 11590; 

phone: (516) 228–7300; fax: (516) 794–5331; 

email: deep.gaurav@faa.gov. 

(2) Refer to Transport Canada AD CF– 

2020–05, dated March 13, 2020, for more 

information. You may examine the Transport 

Canada AD in the AD docket at https://

www.regulations.gov by searching for and 

locating Docket No. FAA–2020–1003. 

(3) For service information identified in 

this AD, 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 review this 

referenced service information at the FAA, 

Airworthiness Products Section, Operational 

Safety Branch, 901 Locust, Kansas City, MO 

64106. For information on the availability of 

this material at the FAA, call (817) 222–5110. 

Issued on January 13, 2022. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–00994 Filed 1–20–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0007; Project 

Identifier 2018–CE–048–AD] 

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–6–400 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 describes 

the unsafe condition as corrosion of the 


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Federal Register / Vol. 87, No. 14 / Friday, January 21, 2022 / Proposed Rules 3239 

fuel system components located in the 

fuel gallery due to inadequate corrosion 

protection. 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 March 7, 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 proposed AD, contact Viking Air 

Limited Technical Support, 1959 de 

Havilland Way, Sidney, British 

Columbia, Canada, V8L 5V5; phone: 

(North America) (800) 663–8444; fax: 

(250) 656–0673; email: 

technical.support@vikingair.com; 

website: https://www.vikingair.com/ 

support/service-bulletins. 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–2022–0007; or in person at the 

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: 

Joseph Catanzaro, Aviation Safety 

Engineer, FAA, New York ACO Branch, 

1600 Stewart Avenue, Suite 410, 

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

7366; fax: (516) 794–5531; email: 

joseph.catanzaro@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

The FAA invites you to send any 

written relevant data, views, or 

arguments about this proposed AD. 

Send your comments to an address 

listed under the ADDRESSES section. 

Include ‘‘Docket No. FAA–2022–0007; 

Project Identifier 2018–CE–048–AD’’ 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 Joseph Catanzaro, 

Aviation Safety Engineer, FAA, New 

York ACO Branch, 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 Canadian AD CF–2018–07, dated 

February 23, 2018 (referred to after this 

as ‘‘the MCAI’’), to correct an unsafe 

condition on certain serial-numbered 

Viking Air Limited Model DHC–6–400 

airplanes. The MCAI states: 

There have been reports of corrosion 

affecting components of the fuel system that 

are located in the fuel gallery because of 

inadequate corrosion protection. This 

condition affects only aeroplanes operating 

on floats. 

The effects of corrosion-related damage to 

fuel system components have included fuel 

leaks, electrical arcing, loss of fuel boost 

pump function and erroneous fuel quantity 

readings. Inaccurate fuel quantity indication 

and loss of fuel boost pump function can lead 

to fuel starvation followed by loss of engine 

power. Electrical arcing in the fuel gallery 

and loss of electrical bonding between fuel 

system components increases the risk of fire. 

The MCAI requires repetitively 

inspecting the fuel gallery for corrosion, 

rectifying any deficiencies, and 

accomplishing modifications to the fuel 

gallery system. You may examine the 

MCAI in the AD docket at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2022– 

0007. 

FAA’s Determination and Requirements 

of the Proposed AD 

This product has been approved by 

the aviation authority of another 

country, and is approved for operation 

in the United States. Pursuant to the 

FAA’s bilateral agreement with this 

State of Design Authority, it has notified 

the FAA of the unsafe condition 

described in the MCAI referenced 

above. The FAA is issuing this NPRM 

after determining the unsafe condition 

described previously is likely to exist or 

develop on other products of the same 

type design. 

Related Service Information Under 1 

CFR Part 51 

The FAA reviewed Viking DHC–6 

Twin Otter Service Bulletin V6/0044, 

Revision ‘B’, dated September 13, 2021. 

The service information specifies 

incorporating multiple design 

improvement modifications in the fuel 

gallery. 

The FAA also reviewed Temporary 

Revision No. 241, dated July 27, 2021, 

to the Viking DHC–6 Inspection 

Requirements Manual, PSM 1–6–7. 

Items 15.(1) and 15.(2) of this service 

information specifies rinsing and 

inspecting the entire fuel gallery for 

corrosion; removing corrosion; 

reapplying any protective finishes; and 

removing and replacing any damaged 

components. The temporary revision 

updates the fuel gallery inspection to 

include airplanes with a new fuel probe 

(Modification (MOD) 6/2395). 

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. 

Other Related Service Information 

The FAA reviewed the following 

technical bulletins related to this 

NPRM, which contain instructions for 


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the different modifications to 

components in the fuel gallery: 

• Viking DHC–6 Twin Otter 

Technical Bulletin TBV6/00034, 

Revision NC, dated October 16, 2013 

(MOD 6/2267); 

• Viking DHC–6 Twin Otter 

Technical Bulletin TBV6/00084, 

Revision A, dated May 26, 2017 (MOD 

6/2299); 

• Viking DHC–6 Twin Otter 

Technical Bulletin V6/00099, Revision 

NC, dated December 23, 2016 (MOD 6/ 

2389); 

• Viking DHC–6 Twin Otter 

Technical Bulletin. TBV6/00094, 

Revision NC, dated November 1, 2016 

(MOD 6/2390); 

• Viking DHC–6 Twin Otter 

Technical Bulletin. V6/00100, Revision 

NC, dated February 20, 2017 (MOD 6/ 

2393); and 

• Viking DHC–6 Twin Otter 

Technical Bulletin V6/00152, Revision 

NC, dated January 29, 2021 (MOD 6/ 

2464). 

Proposed AD Requirements in This 

NPRM 

This proposed AD would require 

accomplishing the actions described in 

the service information previously. 

Costs of Compliance 

The FAA estimates that this AD, if 

adopted as proposed, would affect 4 

airplanes of U.S. registry. The average 

labor rate is $85 per work-hour. 

The FAA estimates the following 

costs to comply with this AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per airplane Cost on U.S. operators 

Inspect fuel gallery ............... 3 work-hours × $85 per hour 

= $255.

Not applicable ..... $255 per inspection cycle ..... $1,020 per inspection cycle. 

MOD 6/2267—Fuel boost 

pump EMI filter relocation.

16 work-hours × $85 per 

hour = $1,360.

$4,762 ................. $6,122 ................................... $12,244 (for 2 affected airplanes). 

MOD 6/2299—Improved fuel 

boost pump.

17 work-hours × $85 per 

hour = $1,445.

$42,290 ............... $43,735 ................................. $131,205 (for 3 affected airplanes) 

MOD 6/2389—Electrical 

Bonding Fuel System 

Manifold Drain Valve.

18 work-hours × $85 per 

hour = $1,530.

$572 .................... $2,102 ................................... $8,408 (for 4 affected airplanes). 

MOD 6/2390—Fuel probe, 

improved mating electrical 

connection.

20 work-hours × $85 per 

hour = $1,700.

$2,129 ................. $3,829 ................................... $11,487 (for 3 affected airplanes). 

MOD 6/2393—Fuel system 

manifold—drain valve.

8 work-hours × $85 per hour 

= $680.

$225 .................... $905 ...................................... $3,620 (for 4 affected airplanes). 

MOD 6/2464—Fuel pressure 

switch replacement.

10 work-hours × $85 per 

hour = $850.

$3,953 ................. $4,803 ................................... $14,409 (for 3 affected airplanes). 

On-Condition Costs 

The extent of corrosion damage found 

during the inspections may vary 

significantly from airplane to airplane. 

The FAA has no way of determining 

how much corrosion damage may be 

found on each airplane, the cost for 

repairing corrosion damage on each 

airplane, or the number of airplanes that 

may require repair. 

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: 

Viking Air Limited (type certificate 

previously held by Bombardier Inc. and 

de Havilland, Inc.): Docket No. FAA– 

2022–0007; Project Identifier 2018–CE– 

048–AD. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by March 7, 

2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Viking Air Limited 

(type certificate previously held by 

Bombardier Inc. and de Havilland, Inc.) 

Model DHC–6–400 airplanes, serial numbers 

845 through 957, certificated in any category. 


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(d) Subject 

Joint Aircraft System Component (JASC) 

Code 2800, Aircraft Fuel System. 

(e) Reason 

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 

describes the unsafe condition as corrosion of 

fuel system components located in the fuel 

gallery due to inadequate corrosion 

protection. The FAA is issuing this AD to 

prevent corrosion-related damage to fuel 

system components, which could lead to fuel 

leaks, electrical arcing, loss of fuel boost 

pump function, and erroneous fuel quantity 

readings. This unsafe condition, if not 

corrected, could result in fuel starvation with 

loss of engine power and increased risk of an 

in-flight fire with consequent loss of airplane 

control. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions for Airplanes Operating 

on Floats on the Effective Date of This AD 

(1) Within 50 hours time-in-service (TIS) 

after the effective date of this AD or within 

3 months after the effective date of this AD, 

whichever occurs first, and thereafter at 

intervals not to exceed 125 hours TIS, do the 

following actions: 

(i) Remove all fuel gallery covers and rinse 

the fuel gallery with water. 

(ii) Inspect the fuel gallery for corrosion 

and, if there is any corrosion, take all 

necessary corrective actions before further 

flight by following Item D.15(2) of Special 

Inspection 3 in Temporary Revision No. 241, 

dated July 27, 2021, to the Viking DHC–6 

Inspection Requirements Manual, PSM 1–6– 

7. 

(2) Within 12 months after the effective 

date of this AD, install the modifications 

applicable to your airplane serial number by 

following the Accomplishment Instructions, 

sections A. through E. in Viking Air Limited, 

DHC–6 Twin Otter Service Bulletin V6/0044, 

Revision ‘B’, dated September 13, 2021 

(Viking SB V6/0044, Revision ‘B’). 

(h) Required Actions for Airplanes Modified 

To Operate on Floats After the Effective Date 

of This AD 

Within 12 months after the airplane is 

modified to operate on floats, regardless of 

whether the landing gear is later modified 

back to non-float landing gear, install the 

modifications applicable to your airplane 

serial number by following the 

Accomplishment Instructions, sections A. 

through E. in Viking SB V6/0044, Revision 

‘B.’ 

(i) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, New York ACO Branch, 

FAA, has the authority to approve AMOCs 

for this AD, if requested using the procedures 

found in 14 CFR 39.19. In accordance with 

14 CFR 39.19, send your request to your 

principal inspector or local Flight Standards 

District Office, as appropriate. If sending 

information directly to the manager of the 

certification office, send it to the attention of 

the person identified in paragraph (j)(1) of 

this AD. 

(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 Joseph Catanzaro, Aviation Safety 

Engineer, FAA, New York ACO Branch, 1600 

Stewart Avenue, Suite 410, Westbury, NY 

11590; phone: (516) 228–7366; fax: (516) 

794–5531; email: joseph.catanzaro@faa.gov. 

(2) For service information identified in 

this AD, contact Viking Air Limited 

Technical Support, 1959 de Havilland Way, 

Sidney, British Columbia, Canada, V8L 5V5; 

phone: (North America) (800) 663–8444; fax: 

(250) 656–0673; email: technical.support@

vikingair.com; website: https://

www.vikingair.com/support/service-bulletins. 

You may view this referenced service 

information at the FAA, Airworthiness 

Products Section, Operational Safety Branch, 

901 Locust, Kansas City, MO 64106. For 

information on the availability of this 

material at the FAA, call (817) 222–5110. 

Issued on January 13, 2022. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–00970 Filed 1–20–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0008; Project 

Identifier MCAI–2021–00882–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 all 

Leonardo S.p.a. Model AW109SP 

helicopters. This proposed AD was 

prompted by reports of corrosion inside 

the hoist support assembly (boom 

assembly) (affected part) that affects 

both the huck bolt heads (blind bolt 

fasteners) and the support surface. This 

proposed AD would require repetitive 

inspections of the external and internal 

surfaces of each affected part for 

cracking and corrosion and, depending 

on the findings, accomplishment of 

corrective actions, as specified in a 

European Union Aviation Safety Agency 

(EASA) AD, which is proposed for 

incorporation by reference (IBR). This 

proposed AD would also allow the 

installation of an affected part, provided 

certain instructions are followed. 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 March 7, 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 EASA 

material is also available at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2022– 

0008. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0008; 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. 


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