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Federal Register / Vol. 86, No. 46 / Thursday, March 11, 2021 / Rules and Regulations 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.
Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:
PART 39AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:

Authority: 49 U.S.C. 106g, 40113, 44701.
39.13

Amended
2. The FAA amends 39.13 by adding the following new airworthiness directive:

20210211 Airbus Helicopters Deutschland GmbH: Amendment 3921394; Docket No. FAA20200967; Product Identifier 2018SW013AD.

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a Applicability This airworthiness directive AD applies to Airbus Helicopters Deutschland GmbH
Model MBBBK117 A1, MBBBK117 A3, MBBBK117 A4, MBBBK117 B1, MBB
BK117 B2, MBBBK117 C1, and MBB
BK117 C2 helicopters, certificated in any category.
b Unsafe Condition This AD defines the unsafe condition as a crack in a tail gearbox TGB bellcrank attachment arm. This condition could result in disconnection of the bellcrank attachment arm from the TGB and subsequent loss of control of the helicopter.
c Effective Date This AD becomes effective April 15, 2021.
d Compliance You are responsible for performing each action required by this AD within the
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specified compliance time unless it has already been accomplished prior to that time.
e Required Actions Within 100 hours time-in-service:
1 Remove the surface coating from the TGB bellcrank attachment arm and using a 5X or higher power magnifying glass, dyepenetrant inspect the TGB arm for a crack and for any dent, nick, and scratch in the area shown in Figure 1 of Airbus Helicopters Alert Service Bulletin ASB MBBBK117 C
265A008 or ASB MBBBK11730A120, each Revision 0 and dated January 31, 2018, as applicable to your model helicopter.
2 If there is a crack, before further flight, replace the TGB.
3 If there is a dent, a nick, or a scratch, before further flight, remove the surface material up to 0.2 mm using 80-grit abrasive paper and repeat the dye penetrant inspection. If there is a crack or if the damage cannot be removed, before further flight, replace the TGB.
4 If there is no crack and no dent, nick, or scratch, before further flight, finish the surface with 600-grit or finer abrasive paper.

13811

3 For service information identified in this AD, contact Airbus Helicopters, 2701 N
Forum Drive, Grand Prairie, TX 75052;
telephone 9726410000 or 8002320323;
fax 9726413775; or at https
www.airbus.com/helicopters/services/
technical-support.html.
4 You may view this service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N321, Fort Worth, TX 76177. For information on the availability of this material at the FAA, call 8172225110.
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/ibrlocations.html.
Issued on January 14, 2021.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202105090 Filed 31021; 8:45 am
f Special Flight Permits Special flight permits are prohibited.

BILLING CODE 491013P

g Alternative Methods of Compliance AMOCs 1 The Manager, International Validation Branch, FAA, may approve AMOCs for this AD. Send your proposal to: Kristi Bradley, Aviation Safety Engineer, General Aviation &
Rotorcraft Section, International Validation Branch, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone 817 2225110;
email 9-AVS-AIR-730-AMOC@faa.gov.
2 For operations conducted under a 14
CFR part 119 operating certificate or under 14 CFR part 91, subpart K, the FAA suggests that you notify your principal inspector, or lacking a principal inspector, the manager of the local flight standards district office or certificate holding district office, before operating any aircraft complying with this AD through an AMOC.

DEPARTMENT OF TRANSPORTATION

h Additional Information The subject of this AD is addressed in European Aviation Safety Agency now European Union Aviation Safety Agency EASA AD No. 20180046, dated February 19, 2018. You may view the EASA AD on the internet at https www.regulations.gov in Docket No. FAA20200967.
i Subject Joint Aircraft Service Component JASC
Code: 6520, Tail Rotor Gearbox.
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. 552a 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 Airbus Helicopters Alert Service Bulletin ASB MBBBK117 C265A008, Revision 0, dated January 31, 2018.
ii Airbus Helicopters ASB MBBBK117
30A120, Revision 0, dated January 31, 2018.

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Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20201018; Project Identifier MCAI202001383R; Amendment 3921391; AD 20210208
RIN 2120AA64

Airworthiness Directives; Airbus Helicopters Federal Aviation Administration FAA, DOT.
ACTION: Final rule.
AGENCY:

The FAA is superseding Airworthiness Directive AD 201819
01, which applied to all Airbus Helicopters Model AS365N2, AS 365
N3, EC 155B, EC155B1, SA365N1, and SA366G1 helicopters. AD 20181901
required repetitive inspections of the aft fuselage outer skin. This AD continues to require repetitive inspections and adds Model SA365N helicopters, as specified in a European Union Aviation Safety Agency EASA AD, which is incorporated by reference. This AD was prompted by aft fuselage baggage compartment area outer skin disbonding and a determination that Model SA365N helicopters are also affected by the unsafe condition identified in AD 20181901. The FAA
is issuing this AD to address the unsafe condition on these products.
DATES: This AD is effective April 15, 2021.
The Director of the Federal Register approved the incorporation by reference SUMMARY:

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