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Federal Register / Vol. 86, No. 221 / Friday, November 19, 2021 / Rules and Regulations
b Affected ADs None.
c Applicability This AD applies to The Boeing Company Model 747400F series airplanes, certificated in any category, equipped with a dual nonactivated global navigation satellite system GNSS unit and antenna installed in accordance with supplemental type certificate STC ST04393NY, dated September 3, 2019.
d Subject Air Transport Association ATA of America Code 05, Time Limits/Maintenance Checks.
e Unsafe Condition This AD was prompted by the determination that more restrictive tasks and limitations are necessary. The FAA is issuing this AD to address cracks around the antenna/unit installation, which, if unchecked, could lead to rapid decompression of the aircraft.
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, EASA AD 20210138, dated June 9, 2021.

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h Exceptions to EASA AD 20210138
1 Where EASA AD 20210138 refers to its effective date, this AD requires using the effective date of this AD.
2 The requirements specified in paragraphs 1 and 2 of EASA AD 2021
0138 do not apply to this AD.
3 Paragraph 3 of EASA AD 20210138
specifies revising the approved AMP
within 12 months after its effective date, but this AD requires revising the existing maintenance or inspection program, as applicable, within 90 days after the effective date of this AD.
4 The initial compliance time for doing the tasks specified in paragraph 3 of EASA
AD 20210138 is at the applicable thresholds as incorporated by the requirements of paragraph 3 of EASA AD
20210138, or within 90 days after the effective date of this AD, whichever occurs later.
5 The provisions specified in paragraph 4 of EASA AD 20210138 do not apply to this AD.
6 The Remarks section of EASA AD
20210138 does not apply to this AD.
i Provisions for Alternative Actions and Intervals After the existing maintenance or inspection program has been revised as required by paragraph g of this AD, no alternative actions e.g., inspections and intervals are allowed unless they are approved as specified in the provisions of the Ref. Publications section of EASA AD
20210138.

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21:40 Nov 18, 2021

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j Additional AD Provisions The following provisions also apply to this AD:
1 Alternative Methods of Compliance AMOCs: The Manager, New York 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 responsible Flight Standards 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 k of this AD.
Information may be emailed to: ATTN:
Program Manager, Continuing Operational Safety, FAA, New York ACO Branch, 1600
Stewart Avenue, Suite 410, Westbury, NY
11590; telephone 5162287300; fax 516
7945531. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office.
2 Contacting the Manufacturer: For any requirement in this AD to obtain instructions from a manufacturer, the instructions must be accomplished using a method approved by the Manager, New York ACO Branch, FAA; or EASA; or Fokker Services EASA
Design Organization Approval DOA. If approved by the DOA, the approval must include the DOA-authorized signature.
k Related Information For more information about this AD, contact Antariksh Shetty, Aerospace Engineer, Airframe and Propulsion Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
telephone 5162287300; fax 5167945531;
email 9-avs-nyaco-cos@faa.gov.
l 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 this AD specifies otherwise.
i European Union Aviation Safety Agency EASA AD 20210138, dated June 9, 2021.
ii Reserved 3 For EASA AD 20210138, contact EASA, Konrad-Adenauer-Ufer 3, 50668
Cologne, Germany; telephone +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 material at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 2062313195.
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 fr.inspection@nara.gov, or go to: https
www.archives.gov/federal-register/cfr/ibrlocations.html.

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Issued on October 13, 2021.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202125200 Filed 111821; 8:45 am BILLING CODE 491013P

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20210781; Project Identifier AD202100775E; Amendment 3921831; AD 20212410
RIN 2120AA64

Airworthiness Directives; Austro Engine GmbH Engines Federal Aviation Administration FAA, DOT.
ACTION: Final rule.
AGENCY:

SUMMARY: The FAA is superseding Airworthiness Directive AD 202109
04 for all Austro Engine GmbH E4 and E4P model diesel piston engines. AD
20210904 required replacing a certain oil pump as well as the oil filter and engine oil. This AD was prompted by reports of an oil pump blockage on E4
model diesel piston engines. This AD
requires replacing a certain oil pump as well as the oil filter and engine oil. The FAA is issuing this AD to address the unsafe condition on these products.
DATES: This AD is effective December 27, 2021.
The Director of the Federal Register approved the incorporation by reference of a certain other publication listed in this AD as of May 10, 2021 86 FR
21637, April 23, 2021.
ADDRESSES: For service information identified in this final rule, contact Austro Engine GmbH, Rudolf-DieselStrasse 11, 2700 Weiner Neustadt, Austria; phone: +43 2622 23000;
website: www.austroengine.at. You may view this service information at the Airworthiness Products Section, Operational Safety Branch, FAA, 1200
District Avenue, Burlington, MA 01803.
For information on the availability of this material at the FAA, call 817 222
5110. It is also available at https
www.regulations.gov by searching for and locating Docket No. FAA2021
0781.

Examining the AD Docket You may examine the AD docket at https www.regulations.gov by searching for and locating Docket No.
FAA20210781; or in person at Docket Operations between 9 a.m. and 5 p.m.,
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