8406 Federal Register / Vol. 87, No. 31 / Tuesday, February 15, 2022 / Rules and Regulations 

7B27A/3 and CFM56–7B27AE model 

turbofan engines, at the next engine shop 

visit, or before December 31, 2024, whichever 

occurs first after the effective date of this AD, 

replace the affected AGB with a part eligible 

for installation. 

(i) Definition 

(1) For the purpose of this AD, an ‘‘engine 

shop visit’’ is the induction of an engine into 

the shop for maintenance involving the 

separation of pairs of major mating engine 

case flanges, except for the following 

situations, which do not constitute an engine 

shop visit: 

(i) Separation of engine flanges solely for 

the purposes of transportation of the engine 

without subsequent maintenance; or 

(ii) Separation of engine flanges solely for 

the purpose of replacing the fan or propulsor 

without subsequent maintenance. 

(2) For the purpose of this AD, for affected 

CFM56–3, CFM56–3B, and CFM56–3C model 

turbofan engines, a part eligible for 

installation is: 

(i) An AGB with a P/N other than 340– 

046–503–0, 340–046–504–0, or 340–046– 

505–0; or 

(ii) An AGB that, using an FAA-approved 

procedure, has been re-worked with a 

dynamic oil seal in the handcranking pad 

cover assembly and re-identified with a new 

P/N not listed in paragraph (i)(2)(i) of this 

AD. 

Note 1 to paragraph (i)(2)(ii): Procedures to 

install a dynamic oil seal in the 

handcranking pad cover assembly can be 

found in CFM International SB CFM56–3 S/ 

B 72–1129, Revision 7, dated May 6, 2020. 

(3) For the purpose of this AD, for affected 

CFM56–7B model turbofan engines, except 

for CFM56–7B27A, CFM56–7B27A/3 and 

CFM56–7B27AE model turbofan engines, a 

part eligible for installation is: 

(i) An AGB with a P/N other than 340– 

046–503–0, 340–046–504–0, or 340–046– 

505–0; or 

(ii) An affected AGB that, using an FAAapproved procedure, has been re-worked 

with a dynamic oil seal in the handcranking 

pad cover assembly and re-identified with a 

new P/N not listed in paragraph (i)(3)(i) of 

this AD. 

Note 2 to paragraph (i)(3)(ii): Procedures to 

install a dynamic oil seal in the 

handcranking pad cover assembly can be 

found in CFM International SB CFM56–7B S/ 

B 72–0879, Revision 7, dated February 10, 

2021, CFM56–7B S/B 72–0564, Revision 9, 

dated December 3, 2021, or CFM56–7B S/B 

72–1071, initial issue, dated December 3, 

2021. 

(j) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, ECO 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) of this AD. You 

may email your request to: ANE-AD-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 

For more information about this AD, 

contact Kevin Clark, Aviation Safety 

Engineer, ECO Branch, FAA, 1200 District 

Avenue, Burlington, MA 01803; phone: (781) 

238–7088; fax: (781) 238–7199; email: 

kevin.m.clark@faa.gov. 

(l) Material Incorporated by Reference 

None. 

Issued on January 6, 2022. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–03039 Filed 2–14–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–1018; Project 

Identifier MCAI–2021–00902–R; Amendment 

39–21934; AD 2022–03–17] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

Airbus Helicopters Model AS332L2 and 

EC225LP helicopters. This AD was 

prompted by a report of loss of 

tightening torque on the nut that 

attaches the tail gear box (TGB) bevel 

wheel. This AD requires repetitive 

inspections (measurements) of the 

angular clearances of the TGB, and, 

depending on the findings, replacement 

of the TGB with a serviceable TGB, as 

specified in a European Union Aviation 

Safety Agency (EASA) AD, which is 

incorporated by reference. This AD also 

provides terminating action for certain 

repetitive inspections. The FAA is 

issuing this AD to address the unsafe 

condition on these products. 

DATES: This AD is effective March 22, 

2022. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of March 22, 2022. 

ADDRESSES: For EASA material 

incorporated by reference (IBR) in this 

final rule, contact EASA, KonradAdenauer-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. It is also available in the AD 

docket at https://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2021–1018. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–1018; 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 

final rule, the EASA AD, any comments 

received, and other information. The 

address for Docket Operations is U.S. 

Department of Transportation, Docket 

Operations, M–30, West Building, 

Ground Floor, Room W12–140, 1200 

New Jersey Avenue SE, Washington, DC 

20590. 

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: 

Background 

EASA, which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA AD 2021– 

0184R1, dated October 8, 2021 (EASA 

AD 2021–0184R1), to correct an unsafe 

condition for Airbus Helicopters, 

formerly Eurocopter, Eurocopter France, 

Aerospatiale, Model AS 332 L2 and EC 

225 LP helicopters, all serial numbers. 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to all Airbus Helicopters Model 

AS332L2 and EC225LP helicopters. The 

NPRM published in the Federal 

Register on December 1, 2021 (86 FR 

68166). The NPRM was prompted by a 

report of loss of tightening torque on the 

nut that attaches the TGB bevel wheel. 

Additionally, the subsequent 

investigation highlighted that loss of the 

tightening torque might lead to 

degradation of the splines between the 

tail rotor shaft and the TGB bevel wheel. 

The investigation is still on-going to 


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Federal Register / Vol. 87, No. 31 / Tuesday, February 15, 2022 / Rules and Regulations 8407 

identify the root cause of the tightening 

torque loss. The NPRM proposed to 

require repetitive inspections 

(measurements) of the angular 

clearances of the TGB, and, depending 

on the findings, replacement of the TGB 

with a serviceable TGB, as specified in 

EASA AD 2021–0184R1. 

After the FAA issued the NPRM, 

EASA issued EASA AD 2021–0184R2, 

dated January 12, 2022 (EASA AD 

2021–0184R2), which revises EASA AD 

2021–0184R1 to correct the allowable 

angular clearance range. EASA specifies 

that the angular clearance range 

specified in EASA AD 2021–0184R1 

was defined stricter than the one 

defined in the service information. 

Therefore, EASA issued EASA AD 

2021–0184R2 to correct the allowable 

clearance range accordingly. 

The FAA is issuing this AD to address 

loss of tightening torque on the nut that 

attaches the TGB bevel wheel, which, if 

not corrected, could lead to structural 

failure of the TGB drive, resulting in 

reduced, or loss of, control of the 

helicopter. See EASA AD 2021–0184R2 

for additional background information. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received no comments on 

the NPRM or on the determination of 

the costs. 

Conclusion 

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 reviewed 

the relevant data and determined that 

air safety requires adopting this AD as 

proposed. Accordingly, the FAA is 

issuing this AD to address the unsafe 

condition on these helicopters. Except 

for minor editorial changes and 

updating EASA AD 2021–0184R2 as the 

material incorporated by reference, this 

AD is adopted as proposed in the 

NPRM. None of these changes will 

increase the economic burden on any 

operator. 

Related Service Information Under 1 

CFR Part 51 

EASA AD 2021–0184R2 requires 

repetitive inspections (measurements) of 

the angular clearances of the TGB, and, 

depending on the findings, additional 

repetitive inspections (measurements) of 

the angular clearances of the TGB at a 

reduced interval and replacement of the 

TGB with a serviceable TGB. EASA AD 

2021–0184R2 provides terminating 

action for the repetitive inspections at 

the reduced interval for a helicopter if, 

during two consecutive inspections, the 

value of the measured angular clearance 

remains unchanged for that helicopter. 

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. 

Interim Action 

The FAA considers this AD to be an 

interim action. If final action is later 

identified, the FAA might consider 

further rulemaking then. 

Differences Between This AD and the 

EASA AD 

EASA AD 2021–0184R2 requires 

compliance in terms of flight hours, this 

AD requires using hours time-in-service. 

Where EASA AD 2021–0184R2 refers to 

August 19, 2021 (the effective date of 

EASA AD 2021–0184, dated August 5, 

2021), this AD requires using the 

effective date of this AD. Where the 

service information referenced in EASA 

AD 2021–0184R2 specifies sending 

parts to the manufacturer or an 

approved repair station to be examined, 

this AD does not include that 

requirement. 

Costs of Compliance 

The FAA estimates that this AD 

affects 38 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 AD. 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Inspection of TGB Clearance.2 work-hours × $85 per hour = $170 per 

inspection cycle.

$0 $170 per inspection cycle $6,460 per inspection 

cycle. 

The FAA estimates the following 

costs to do any necessary on-condition 

actions that are required based on the 

results of any required actions. The FAA 

has no way of determining the number 

of helicopters that might need this oncondition action: 

ESTIMATED COSTS OF ON-CONDITION ACTIONS

Action Labor cost Parts cost Cost per product 

Replacement of TGB ....... 33 work-hours × $85 per hour = $2,805 .... Up to $410,000 ........................................... Up to $412,805. 

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 

This AD will not have federalism 

implications under Executive Order 

13132. This AD will 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 


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8408 Federal Register / Vol. 87, No. 31 / Tuesday, February 15, 2022 / Rules and Regulations 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that this AD: 

(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 Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 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: 

2022–03–17 Airbus Helicopters: 

Amendment 39–21934; Docket No. 

FAA–2021–1018; Project Identifier 

MCAI–2021–00902–R. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective March 22, 2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all Airbus Helicopters 

Model AS332L2 and EC225LP helicopters, 

certificated in any category. 

(d) Subject 

Joint Aircraft Service Component (JASC) 

Code: 6400, Tail Rotor System. 

(e) Unsafe Condition 

This AD was prompted by a report of loss 

of tightening torque on the nut that attaches 

the tail gear box (TGB) bevel wheel. The FAA 

is issuing this AD to address loss of 

tightening torque on the nut that attaches the 

TGB bevel wheel, which, if not corrected, 

could lead to structural failure of the TGB 

drive, resulting in reduced, or loss of, 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 2021–0184R2, 

dated January 12, 2022 (EASA AD 2021– 

0184R2). 

(h) Exceptions to EASA AD 2021–0184R2 

(1) Where EASA AD 2021–0184R2 requires 

compliance in terms of flight hours, this AD 

requires using hours time-in-service. 

(2) Where EASA AD 2021–0184R2 refers to 

August 19, 2021 (the effective date of EASA 

AD 2021–0184, dated August 5, 2021), this 

AD requires using the effective date of this 

AD. 

(3) Where the service information 

referenced in EASA AD 2021–0184R2 

specifies sending parts to the manufacturer or 

an approved repair station to be examined, 

this AD does not include that requirement. 

(4) This AD does not mandate compliance 

with the ‘‘Remarks’’ section of EASA AD 

2021–0184R2. 

(i) No Reporting Requirement 

Although the service information 

referenced in EASA AD 2021–0184R2 

specifies to submit certain information to the 

manufacturer, this AD does not include that 

requirement. 

(j) Special Flight Permit 

Special flight permits may be permitted 

provided that there are no passengers on 

board. 

(k) 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 (l) 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. 

(l) Related Information 

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. 

(m) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless this AD specifies otherwise. 

(i) European Union Aviation Safety Agency 

(EASA) AD 2021–0184R2, dated January 12, 

2022. 

(ii) [Reserved] 

(3) For EASA AD 2021–0184R2, 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. 

(4) 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. 

This material may be found in the AD docket 

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

for and locating Docket No. FAA–2021–1018. 

(5) You may view this material that is 

incorporated by reference at the National 

Archives and Records Administration 

(NARA). For information on the availability 

of this material at NARA, email 

fr.inspection@nara.gov, or go to: https://

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued on January 26, 2022. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–03137 Filed 2–14–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2021–0917; Airspace 

Docket No. 21–ANM–45] 

RIN 2120–AA66 

Modification of Class E Airspace; Kit 

Carson County Airport, Burlington, CO 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: This action modifies the Class 

E airspace extending upward from 700 

feet above the surface of the Earth, and 

removes the Class E airspace extending 

upward from 1,200 feet above the 

surface of the Earth at Kit Carson 

County Airport, Burlington, CO. This 

action ensures the safety and 

management of instrument flight rules 

(IFR) operations at the airport. 

DATES: Effective 0901 UTC, May 19, 

2022. The Director of the Federal 

Register approves this incorporation by 

reference action under 1 CFR part 51, 

subject to the annual revision of FAA 

Order 7400.11 and publication of 

conforming amendments. 


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