Federal Register / Vol. 86, No. 130 / Monday, July 12, 2021 / Rules and Regulations 36485 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

2021–14–02 Aircraft Industries a.s.: 

Amendment 39–21629; Docket No. 

FAA–2021–0510; Project Identifier 

2019–CE–058–AD. 

(a) Effective Date 

This airworthiness directive (AD) becomes 

effective August 2, 2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Aircraft Industries a.s. 

Models L–420, L 410 UVP–E20, and L 410 

UVP–E20 CARGO airplanes, all serial 

numbers, certificated in any category. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 3250, Landing Gear Steering 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 cracking of 

the retaining bolt on the nose landing gear 

(NLG) control. The FAA is issuing this AD 

to prevent loss of the NLG vertical pin, 

which, if not addressed, could result in 

reduced airplane control during taxing, 

takeoff, and landing. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Inspection and Replacement 

(1) Within 30 days after the effective date 

of this AD, inspect the NLG to determine if 

vertical pin part number 

(P/N) L3 223 016 with retaining bolt is 

installed on the NLG steering lever assembly. 

If vertical pin P/N L3 223 016 is installed, 

before further flight, replace the vertical pin 

with vertical pin P/N L3 223 316 by 

following sections B. and C. of the 

Instruction for Implementation in LET 

Aircraft Industries Mandatory Bulletin SB 

No. L–420/021a, Revision 1, dated October 

29, 2019; or LET Aircraft Industries 

Mandatory Bulletin SB No. L410UVP–E/ 

144a, Revision 1, dated October 29, 2019, as 

applicable to your airplane model. 

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

not install a vertical pin P/N L3 223 016 in 

the NLG steering lever assembly on any 

airplane. 

(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 International Validation 

Branch, send it to the attention of the person 

identified in Related Information, paragraph 

(i)(1) of this AD or email: 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; fax: (816) 

329–4090; email: doug.rudolph@faa.gov. 

(2) Refer to European Union Aviation 

Safety Agency (EASA) AD 2020–0308, dated 

December 18, 2019, for more information. 

You may examine the EASA AD in the AD 

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

searching for and locating it in Docket No. 

FAA–2021–0510. 

(j) 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 the AD specifies otherwise. 

(i) LET Aircraft Industries Mandatory 

Bulletin SB No. L–420/021a, Revision 1, 

dated October 29, 2019. 

(ii) LET Aircraft Industries Mandatory 

Bulletin SB No. L410UVP–E/144a, Revision 

1, dated October 29, 2019. 

(3) For service information identified in 

this AD, contact Aircraft Industries, a.s., 686 

04 Kunovice, Czech Republic; phone: +420 

572 817 664; fax: +420 572 816 112; email: 

pps@let.cz; website: http://www.let.cz/en/ 

bulletin. 

(4) 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 (816) 329–4148. It 

is also available at https://

www.regulations.gov by searching for 

locating Docket No. FAA–2021–0510. 

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, 

email: fedreg.legal@nara.gov, or go to: 

https://www.archives.gov/federal-register/cfr/ 

ibr-locations.html. 

Issued on June 21, 2021. 

Lance T. Gant, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2021–13637 Filed 7–9–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0297; Project 

Identifier 2019–SW–062–AD; Amendment 

39–21614; AD 2021–13–09] 

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 Airbus 

Helicopters Model SA330J helicopters, 

all serial numbers. This AD was 

prompted by reports of the failure of the 

lower bearing cage of the main rotor hub 

(MRH) flapping hinges and of the 

presence of metallic particles at the 

bottom of a drag hinge. This AD requires 

repetitive inspections of the MRH chip 

detectors, or for helicopters not 

equipped with chip detectors, repetitive 

inspections of the oil for contamination 

by metallic particles, and corrective 

actions if necessary, as specified in a 

European Union Aviation Safety Agency 

(EASA) AD, which is incorporated by 

reference. The FAA is issuing this AD 

to address the unsafe condition on these 

products. 

DATES: This AD is effective August 16, 

2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of August 16, 2021. 

ADDRESSES: For material incorporated 

by reference (IBR) in this AD, contact 

the EASA, Konrad-Adenauer-Ufer 3, 

50668 Cologne, Germany; phone: +49 

221 8999 000; email: ADs@

easa.europa.eu; internet: 

www.easa.europa.eu. You may find this 

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 on the 

internet at https://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2021–0297. 

Examining the AD Docket 

You may examine the AD docket on 

the internet at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2021– 


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36486 Federal Register / Vol. 86, No. 130 / Monday, July 12, 2021 / Rules and Regulations 

0297; 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, 

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: 

Mahmood G. Shah, Aviation Safety 

Engineer, Fort Worth ACO Branch, 

FAA, 10101 Hillwood Pkwy., Fort 

Worth, TX 76177; phone: 817–222– 

5538; email: mahmood.g.shah@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The EASA, which is the Technical 

Agent for the Member States of the 

European Union, has issued EASA AD 

2019–0157, dated July 3, 2019 (EASA 

AD 2019–0157) (also referred to as the 

Mandatory Continuing Airworthiness 

Information, or the MCAI), to correct an 

unsafe condition for Airbus Helicopters 

Model SA330J 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 Airbus Helicopters Model 

SA330J helicopters, all serial numbers. 

The NPRM published in the Federal 

Register on April 13, 2021 (86 FR 

19157). The NPRM was prompted by 

reports of the failure of the lower 

bearing cage of the MRH flapping hinges 

and of the presence of metallic particles 

at the bottom of a drag hinge. The 

NPRM proposed to require repetitive 

inspections of the MRH chip detectors, 

or for helicopters not equipped with 

chip detectors, repetitive inspections of 

the oil for contamination by metallic 

particles, and corrective actions if 

necessary, as specified in an EASA AD. 

The FAA is issuing this AD to address 

failure of the lower bearing cage of the 

MRH flapping hinges and presence of 

metallic particles at the bottom of a drag 

hinge, which could lead to loss of 

flapping hinge function, resulting in 

MRH unbalance and loss of control of 

the helicopter. See the MCAI for 

additional background information. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA gave the public the 

opportunity to participate in developing 

this final rule. The FAA received no 

comments on the NPRM or on the 

determination of the cost to the public. 

Conclusion 

The FAA reviewed the relevant data 

and determined that air safety and the 

public interest require adopting this 

final rule as proposed, except for minor 

editorial changes. The FAA has 

determined that these minor changes: 

• Are consistent with the intent that 

was proposed in the NPRM for 

addressing the unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM. 

Related Service Information Under 1 

CFR Part 51 

EASA AD 2019–0157 specifies 

procedures for repetitive inspections of 

the MRH chip detectors, or for 

helicopters not equipped with chip 

detectors, repetitive inspections of the 

oil for contamination by metallic 

particles, and corrective actions if 

necessary. Corrective actions include 

replacement of the incidence hinge 

bearings, replacement of the flapping 

bearing race and bearing or if there is no 

degradation reinstallation of the bearing 

race and bearing 180° from the marked 

position during removal, and 

replacement of the drag lower bearing 

race and bearing. 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 interim 

action. The investigation to detect the 

root cause of the reported failures of the 

lower bearing cage of the MRH flapping 

hinges and presence of metallic 

particles at the bottom of the drag hinge 

is on-going. 

Costs of Compliance 

The FAA estimates that this AD 

affects 4 helicopters of U.S. registry. The 

FAA estimates the following costs to 

comply with this AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

4 work-hours × $85 per hour = $340 .......................................................................................... $0 $340 $1,360 

The FAA estimates the following 

costs to do any necessary on-condition 

replacements that would be required 

based on the results of any required 

actions. The FAA has no way of 

determining the number of helicopters 

that might need these on-condition 

replacements: 

ESTIMATED COSTS OF ON-CONDITION ACTIONS

Labor cost Parts cost Cost per 

product 

24 work-hours × $85 per hour = $2,040 ................................................................................................................. $53,025.29 $55,065.29 

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 


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Federal Register / Vol. 86, No. 130 / Monday, July 12, 2021 / Rules and Regulations 36487 

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 

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: 

2021–13–09 Airbus Helicopters: 

Amendment 39–21614; Docket No. 

FAA–2021–0297; Project Identifier 

2019–SW–062–AD. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective August 16, 2021. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Airbus Helicopters 

Model SA330J helicopters, certificated in any 

category, all serial numbers. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 6200, Main Rotor System. 

(e) Reason 

This AD was prompted by reports of the 

failure of the lower bearing cage of the main 

rotor hub (MRH) flapping hinges and of the 

presence of metallic particles at the bottom 

of a drag hinge. The FAA is issuing this AD 

to address failure of the lower bearing cage 

of the MRH flapping hinges and presence of 

metallic particles at the bottom of a drag 

hinge, which could lead to loss of flapping 

hinge function, resulting in MRH unbalance 

and 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 2019–0157, dated 

July 3, 2019 (EASA AD 2019–0157). 

(h) Exceptions to EASA AD 2019–0157 

(1) Where EASA AD 2019–0157 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

(2) The ‘‘Remarks’’ section of EASA AD 

2019–0157 does not apply to this AD. 

(3) Where EASA AD 2019–0157 refers to 

flight hours (FH), this AD requires using 

hours time-in-service. 

(4) Although the service information 

referenced in EASA AD 2019–0157 specifies 

to discard certain parts, this AD requires 

removing those parts from service. 

(i) Special Flight Permit 

Special flight permits may be issued in 

accordance with 14 CFR 21.197 and 21.199 

to operate the helicopter to a location where 

the helicopter can be modified (if the 

operator elects to do so), provided the 

helicopter is operated during the day under 

visual flight rules with 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) 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 

For more information about this AD, 

contact Mahmood G. Shah, Aviation Safety 

Engineer, Fort Worth ACO Branch, FAA, 

10101 Hillwood Pkwy., Fort Worth, TX 

76177; phone: 817–222–5538; email: 

mahmood.g.shah@faa.gov. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) 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 2019–0157, dated July 3, 2019. 

(ii) [Reserved] 

(3) For EASA AD 2019–0157, contact the 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; phone: +49 221 8999 000; 

email: ADs@easa.europa.eu; Internet: 

www.easa.europa.eu. You may find this 

EASA AD 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 on 

the internet at https://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2021–0297. 

(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 fedreg.legal@

nara.gov, or go to https://www.archives.gov/ 

federal-register/cfr/ibr-locations.html. 

Issued on July 2, 2021. 

Gaetano A. Sciortino, 

Deputy Director for Strategic Initiatives, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2021–14688 Filed 7–9–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0022; Project 

Identifier MCAI–2020–00395–E; Amendment 

39–21648; AD 2021–15–01] 

RIN 2120–AA64 

Airworthiness Directives; Rolls-Royce 

Deutschland Ltd & Co KG (Type 

Certificate Previously Held by RollsRoyce plc) Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

Rolls-Royce Deutschland Ltd & Co KG 

(RRD) Trent XWB–75, Trent XWB–79, 

Trent XWB–79B, Trent XWB–84, and 

Trent XWB–97 model turbofan engines. 

This AD was prompted by the 

manufacturer revising the time limits 


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