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Federal Register / Vol. 86, No. 110 / Thursday, June 10, 2021 / Rules and Regulations 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 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 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
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 engine attachment hardware not conforming to the approved design. The FAA is issuing this AD
to detect and address incorrectly installed attachment hardware in the engine and nacelle area. The unsafe condition, if not addressed, could result in damage to the engine attachment hardware, which may affect the structural integrity of the airplane.
f Actions and Compliance Unless already done, do the actions in paragraphs f1 and 2 of this AD at the next annual inspection after the effective date of this AD or within 11 months after the effective date of this AD, whichever occurs later.
1 Inspect the left hand LH and right hand RH middle inner nacelles for loose nuts and correctly install any loose nut before further flight by following section 3.B1 of the Accomplishment Instructions in Pilatus PC24 Service Bulletin No. 71001, dated June 30, 2020 Pilatus SB 71001.
2 Inspect the LH and RH front and rear engine beams for missing washers by following section 3.B2a through b of the Accomplishment Instructions in Pilatus SB
71001. If there are any missing washers, before further flight, do an eddy current inspection of the bolt holes for damage by following section 3.C of the Accomplishment Instructions in Pilatus SB 71001. Where Pilatus SB 71001 specifies obtaining repair instructions from Pilatus, the instructions must be accomplished using a method approved by the Manager, International Validation Branch, FAA; or the European Union Aviation Safety Agency EASA; or Pilatuss EASA Design Organization Approval DOA. If approved by the DOA, the approval must include the DOAauthorized signature.

b Affected ADs None.

g 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. If sending information directly to the manager of the International Validation Branch, send it to the attention of the person identified in Related Information.
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.

c Applicability This AD applies to Pilatus Aircraft Ltd.
Model PC24 airplanes, serial numbers S/
Ns 101 through 162, S/N 164, S/N 165, S/
N 167, and S/N 168, certificated in any category.

h Related Information 1 For more information about this AD, contact Doug Rudolph, Aviation Safety Engineer, FAA, General Aviation & Rotorcraft Section, International Validation Branch, 901
Locust, Room 301, Kansas City, MO 64106;

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

20211112 Pilatus Aircraft Ltd.:
Amendment 3921574; Docket No.
FAA20201074; Project Identifier MCAI202001257A.
a Effective Date This airworthiness directive AD is effective July 15, 2021.
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d Subject Joint Aircraft System Component JASC
Code 7120, Engine Mount Section.

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phone: 816 3294059; fax: 816 3294090;
email: doug.rudolph@faa.gov.
2 Refer to EASA AD 20200194, dated September 8, 2020, for more information.
You may examine the EASA AD at https
www.regulations.gov by searching for and locating Docket No. FAA20201074.
i 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 Pilatus PC24 Service Bulletin No. 71
001, dated June 30, 2020.
ii Reserved 3 For Pilatus Aircraft Ltd. service information identified in this AD, contact CH6371, Stans, Switzerland; phone: +41
848 24 7 365; email: techsupport.ch@pilatusaircraft.com; website: https www.pilatusaircraft.com/.
4 You may view this service information at 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 3294148.
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 May 17, 2021.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202112044 Filed 6921; 8:45 am BILLING CODE 491013P

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20200812; Project Identifier MCAI202001317A; Amendment 3921561; AD 20211028
RIN 2120AA64

Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes Federal Aviation Administration FAA, DOT.
ACTION: Final rule.
AGENCY:

The FAA is adopting a new airworthiness directive AD for all Pilatus Aircraft Ltd. Pilatus Model PC
24 airplanes. This AD results from mandatory continuing airworthiness information MCAI originated by an aviation authority of another country to identify and correct an unsafe condition
SUMMARY:

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