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Federal Register / Vol. 86, No. 231 / Monday, December 6, 2021 / Rules and Regulations test NDT inspection of propeller hub HO
V 72 using paragraph 2.3 of the SB.
4 During each overhaul of propeller hub HOV 72 after the effective date of this AD, perform an NDT inspection using paragraph 2.3 of the SB.
5 If, during any inspection required by paragraph g2, 3, or 4 of this AD, any crack is detected, replace propeller hub HO
V 72 with a part eligible for installation.

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:
a. Removing Airworthiness Directive 20202505, Amendment 3921347 85
FR 78702, December 7, 2020; and b. Adding the following new airworthiness directive:

20212317 Hoffmann GmbH & Co. KG:
Amendment 3921815; Docket No.
FAA20210546; Project Identifier MCAI202100387P.
a Effective Date This airworthiness directive AD is effective January 10, 2022.
b Affected ADs This AD replaces AD 20202505, Amendment 3921347 85 FR 78702, December 7, 2020.
c Applicability This AD applies to all Hoffmann GmbH &
Co. KG model HOV 72 propellers.
d Subject Joint Aircraft System Component JASC
Code 6114, Propeller Hub Section.
e Unsafe Condition This AD was prompted by reports of cracks at different positions on two affected propeller hubs. The FAA is issuing this AD
to prevent failure of the propeller hub. The unsafe condition, if not addressed, could result in release of the propeller, damage to the airplane, and injury to persons on the ground.

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f Compliance Comply with this AD within the compliance times specified, unless already done.
g Required Actions 1 Before the next flight after December 22, 2020 the effective date of AD 20202505, amend the existing aircraft flight manual by inserting the procedure: Abnormal propeller vibrations: As applicable, reduce engine RPM.
2 Before the next flight after the effective date of this AD, and thereafter, before the next flight after any flight where abnormal propeller vibrations have been experienced, visually inspect propeller hub HOV 72
for cracks using paragraph 2.1 of Hoffmann Propeller GmbH & Co. KG Service Bulletin SB E53, Rev. D, dated February 18, 2021 the SB.
3 Within 20 flight hours after the effective date of this AD, perform a non-destructive
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h Definition For the purpose of this AD, a part eligible for installation is a propeller hub HOV 72
with zero hours time since new or a propeller hub HOV 72
that has passed an NDT inspection using paragraph 2.3 of the SB.
i Non-Required Actions 1 Sending the propeller to Hoffmann for investigation, as contained in paragraph 2.1
of the SB, is not required by this AD.
2 Reporting propeller hubs with cracks to Hoffmann, as contained in paragraph 2.3 of the SB, is not required by this AD.
j Credit for Previous Actions You may take credit for the initial visual inspection and NDT inspection of the propeller hub required by paragraphs g2, 3, and 4 of this AD if you performed any of these actions before the effective date of this AD using Hoffmann Propeller GmbH &
Co. KG SB E53, Rev. A, dated October 9, 2020; Rev. B, dated October 14, 2020; or Rev.
C, dated December 9, 2020.
k Special Flight Permit A special flight permit may be issued in accordance with 14 CFR 21.197 and 21.199
to operate the airplane to a service facility to perform the NDT inspection. Special flight permits are prohibited to perform the visual inspection of the propeller hub.
l Alternative Methods of Compliance AMOCs 1 The Manager, Boston ACO 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 m1 of this AD.
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.
m Related Information 1 For more information about this AD, contact Michael Schwetz, Aviation Safety Engineer, Boston ACO Branch, FAA, 1200
District Avenue, Burlington, MA 01803;
phone: 781 2387761; fax: 781 2387199;
email: michael.schwetz@faa.gov.
2 Refer to European Union Aviation Safety Agency EASA AD 20200226R1, dated March 31, 2021, for more information.

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You may examine the EASA AD in the AD
docket at https www.regulations.gov by searching for and locating Docket No. FAA
20210546.
n 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. 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 Hoffmann Propeller GmbH & Co. KG
Hoffmann Service Bulletin SB E53, Rev. D, dated February 18, 2021.
ii Reserved 3 For Hoffmann service information identified in this AD, contact Hoffmann GmbH & Co. KG, Kupferlingstrasse 9, 83022, Rosenheim, Germany; phone: +49 0 8031
1878 0; email: info@hoffmann-prop.com;
website: https hoffmann-prop.com.
4 You may view this service information at FAA, Airworthiness Products Section, Operational Safety Branch, 1200 District Avenue, Burlington, MA 01803. For information on the availability of this material at the FAA, call 781 2387759.
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: fr.inspection@nara.gov, or go to:
https www.archives.gov/federal-register/cfr/
ibr-locations.html.
Issued on November 4, 2021.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202126365 Filed 12321; 8:45 am BILLING CODE 491013P

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20210720; Project Identifier 2019SW079AD; Amendment 3921808; AD 20212310
RIN 2120AA64

Airworthiness Directives; Leonardo S.p.a Helicopters Federal Aviation Administration FAA, DOT.
ACTION: Final rule.
AGENCY:

The FAA is adopting a new airworthiness directive AD for certain Leonardo S.p.a. Model AW109SP
helicopters. This AD was prompted by reports of an ineligible hydraulic pump being installed on Model AW109SP
helicopters. This AD requires inspecting each hydraulic pump for damage and, depending on the inspections results,
SUMMARY:

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06DER1