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Federal Register / Vol. 86, No. 34 / Tuesday, February 23, 2021 / Rules and Regulations
work-hours per product to comply with the requirements of this AD. The average labor rate is $85 per work-hour.
Required parts will cost about $75 per product.
Based on these figures, the FAA
estimates the cost of this AD on U.S.
operators at $63,900, or $1,775 per product.
The FAA has included all costs in this cost estimate. According to the manufacturer, however, some of the costs of this AD may be covered under warranty, thereby reducing the cost impact on affected operators.
Authority for This Rulemaking Title 49 of the United States Code specifies the FAAs 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 Agencys 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 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.

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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:

20210105 Pilatus Aircraft Ltd.:
Amendment 3921381; Docket No.
FAA20200818; Project Identifier MCAI202000987A.
a Effective Date This airworthiness directive AD is effective March 30, 2021.
b Affected ADs None.
c Applicability This AD applies to Pilatus Aircraft Ltd.
Model PC24 airplanes, serial numbers 101
through 160 inclusive, certificated in any category.
d Subject Joint Aircraft System Component JASC
Code 2497, ELECTRICAL POWER SYSTEM
WIRING; 3197, INSTRUMENT SYSTEM
WIRING.
e Unsafe Condition This AD was prompted by electrical harness installations on some PC24
airplanes in production that did not comply with the approved design. The FAA is issuing this AD to prevent wire chafing and potential arcing or failure of wires having the incorrect length. The unsafe condition, if not addressed, could result in loss of system redundancy, electrical arcing, or loss of power plant fire protection.
f Actions and Compliance Unless already accomplished, during the next annual inspection after the effective date of this AD or within 12 months after the effective date of this AD, whichever occurs later, modify the electrical harness installation in accordance with sections 3.A.
through 3.H. of the Accomplishment Instructions in Pilatus PC24 Service Bulletin No. 91001, dated April 7, 2020.
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. Send information to Doug Rudolph, Aerospace Engineer, FAA, General Aviation & Rotorcraft Section, International Validation Branch, 901
Locust, Room 301, Kansas City, Missouri
PO 00000

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64106; phone: 816 3294059; fax: 816
3294090; email: doug.rudolph@faa.gov.
2 Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector PI in the FAA Flight Standards District Office FSDO, or lacking a PI, your local FSDO.
h Related Information 1 Refer to European Union Aviation Safety Agency EASA AD No. 20200158, dated July 16, 2020, for more information.
You may examine the EASA AD at https
www.regulations.gov by searching for and locating Docket No. FAA20200818.
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. 91
001, dated April 7, 2020.
ii Reserved 3 For Pilatus Aircraft Ltd service information identified in this AD, contact Pilatus Aircraft Ltd., CH6371, Stans, Switzerland; phone: +41 848 24 7 365; email:
techsupport.ch@pilatus-aircraft.com;
website: http www.pilatus-aircraft.com/.
4 You may view this service information at FAA, Airworthiness Products Section, Operational Safety Branch, 901 Locust, Kansas City, Missouri 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 December 30, 2020.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202103511 Filed 22221; 8:45 am BILLING CODE 491013P

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20190705; Product Identifier 2019NM098AD; Amendment 3921396; AD 20210213
RIN 2120AA64

Airworthiness Directives; The Boeing Company Airplanes Federal Aviation Administration FAA, DOT.
ACTION: Final rule.
AGENCY:

E:FRFM23FER1.SGM

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