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Federal Register / Vol. 86, No. 129 / Friday, July 9, 2021 / Rules and Regulations
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:
a. Removing airworthiness directive AD 20200811, Amendment 39
19903 85 FR 27112, May 7, 2020, and b. Adding the following new AD:

20211214 Yabora Industria Aeronautica S.A. Type Certificate Previously Held by Embraer S.A.: Amendment 39
21601; Docket No. FAA20210456;
Project Identifier MCAI202100212T.
a Effective Date This airworthiness directive AD becomes effective July 26, 2021.
b Affected ADs This AD replaces AD 20200811, Amendment 3919903 85 FR 27112, May 7, 2020 AD 20200811.
c Applicability This AD applies to Yabora Industria Aeronautica S.A. type certificate previously held by Embraer S.A. Model ERJ 190300
and ERJ 190400 airplanes, certificated in any category, identified in Agencia Nacional de Aviac ao Civil ANAC AD 20210201, effective February 15, 2021; corrected February 23, 2021 ANAC AD 20210201.
d Subject Air Transport Association ATA of America Code 24, Electrical power.

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e Reason This AD was prompted by a failure propagation test, which revealed that when complete loss of the electrical digital current DC essential bus 2 was induced, the smoke detection system of the forward and aft electrical bays erroneously indicated the presence of smoke via the respective engine indication and crew alerting system EICAS
messages, and by the determination that a terminating modification is necessary to correct the root cause of the unsafe condition.
The FAA is issuing this AD to address the potential loss of all electrical DC essential buses, and consequent loss of electrical power for critical systems of the airplane.
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, ANAC AD 20210201.

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h Exceptions to ANAC AD 20210201
1 Where ANAC AD 20210201 refers to its effective date, this AD requires using the effective date of this AD.
2 Where ANAC AD 20210201 refers to December 9, 2019 the effective date of ANAC Emergency AD 20191201, this AD
requires using May 22, 2020 the effective date of AD 20200811.
3 The Alternative Methods of Compliance AMOC section of ANAC AD
20210201 does not apply to this AD.
4 Where Part II, paragraph b2, of ANAC AD 20210201 specifies that after modification of the electrical wiring of the mid electronic bay and backup smoke detectors the temporary airplane flight manual AFM revisions must be removed, this AD requires removing the temporary AFM revisions before further flight after completing the modification required by Part II, paragraph b1, of ANAC AD 202102
01.
i Other FAA AD Provisions The following provisions also apply to this AD:
1 Alternative Methods of Compliance AMOCs: The Manager, Large Aircraft Section, International Validation 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 Large Aircraft Section, International Validation Branch, send it to the attention of the person identified in paragraph j of this AD.
Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov. 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, Large Aircraft Section, International Validation Branch, FAA; or ANAC; or ANACs authorized Designee. If approved by the ANAC Designee, the approval must include the Designees authorized signature.
j Related Information For more information about this AD, contact Krista Greer, Aerospace Engineer, Large Aircraft Section, International Validation Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; telephone and fax 2062313223.
k 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 this AD specifies otherwise.
i Agencia Nacional de Aviac ao Civil ANAC AD 20210201, effective February 15, 2021; corrected February 23, 2021.

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ii Reserved 3 For ANAC AD 20210201, contact National Civil Aviation Agency, Aeronautical Products Certification Branch GGCP, Rua Laurent Martins, n 209, Jardim Esplanada, CEP 12242431Sao Jose dos CamposSP, Brazil; telephone 55 12 32036600; email pac@anac.gov.br; internet www.anac.gov.br/
en/. You may find this IBR material on the ANAC website at https
sistemas.anac.gov.br/certificacao/DA/
DAE.asp.
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. This material may be found in the AD docket on the internet at https
www.regulations.gov by searching for and locating Docket No. FAA20210456.
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 fedreg.legal@
nara.gov, or go to: https www.archives.gov/
federal-register/cfr/ibr-locations.html.
Issued on June 4, 2021.
Gaetano A. Sciortino, Deputy Director for Strategic Initiatives, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202114612 Filed 7821; 8:45 am BILLING CODE 491013P

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 71
Docket No. FAA20210207; Airspace Docket No. 21ANM6
RIN 2120AA66

Establishment of Class E Airspace;
Missoula, MT
Federal Aviation Administration FAA, DOT.
ACTION: Final rule.
AGENCY:

This action establishes Class E domestic en route airspace extending upward from 1,200 feet above the surface at Missoula, MT. This airspace facilitates vectoring of instrument flight rules IFR aircraft and properly contains IFR aircraft operating on direct routes under the control of Salt Lake City Air Route Traffic Control Center ARTCC and Seattle ARTCC.
DATES: Effective 0901 UTC, October 7, 2021. The Director of the Federal Register approves this incorporation by reference action under 1 CFR part 51, subject to the annual revision of FAA
Order 7400.11 and publication of conforming amendments.
SUMMARY:

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09JYR1