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Proposed Rules
Federal Register Vol. 86, No. 145
Monday, August 2, 2021

This section of the FEDERAL REGISTER
contains notices to the public of the proposed issuance of rules and regulations. The purpose of these notices is to give interested persons an opportunity to participate in the rule making prior to the adoption of the final rules.

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39

Examining the AD Docket
Docket No. FAA20201077; Project Identifier MCAI202000819A
RIN 2120AA64

Airworthiness Directives; Embraer S.A.
Airplanes Federal Aviation Administration FAA, DOT.
ACTION: Notice of proposed rulemaking NPRM.
AGENCY:

The FAA proposes to adopt a new airworthiness directive AD for certain Embraer S.A. Models EMB500
and EMB505 airplanes. This proposed AD was prompted by a report that the operational envelope does not contain airspeed limitations and procedures for operating the airplane at static air temperatures below 54 C. This proposed AD would require revising the airplane flight manual AFM to incorporate new and revised airspeed limitations and procedures. The FAA is proposing this AD to address the unsafe condition on these products.
DATES: The FAA must receive comments on this NPRM by September 16, 2021.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
Federal eRulemaking Portal: Go to https www.regulations.gov. Follow the instructions for submitting comments.
Fax: 202 4932251.
Mail: U.S. Department of Transportation, Docket Operations, M30, West Building Ground Floor, Room W12140, 1200 New Jersey Avenue SE, Washington, DC 20590.
Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays.
For service information identified in this NPRM, contact Phenom Maintenance Support, Avenida
khammond on DSKJM1Z7X2PROD with PROPOSALS

SUMMARY:

VerDate Sep<11>2014

16:46 Jul 30, 2021

Brigadeiro Faria Lima, 2170, P.O. Box 36/2, Sao Jose dos Campos, 12227901, Brazil; phone: +55 12 3927 1000; email:
phenom.reliability@embraer.com.br;
website: https www.embraer.com.br/
en-US/Pages/home.aspx. You may view this service information at the 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.

Jkt 253001

You may examine the AD docket at https www.regulations.gov by searching for and locating Docket No.
FAA20201077; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this NPRM, the mandatory continuing airworthiness information MCAI, any comments received, and other information. The street address for Docket Operations is listed above.
Jim Rutherford, Aviation Safety Engineer, FAA, General Aviation & Rotorcraft Section, International Validation Branch, 901 Locust, Room 301, Kansas City, MO 64106; phone: 816 3294165;
fax: 816 3294090; email:
jim.rutherford@faa.gov.

FOR FURTHER INFORMATION CONTACT:

SUPPLEMENTARY INFORMATION:

Comments Invited The FAA invites you to send any written relevant data, views, or arguments about this proposal. Send your comments to an address listed under ADDRESSES. Include Docket No.
FAA20201077; Project Identifier MCAI202000819A at the beginning of your comments. The most helpful comments reference a specific portion of the proposal, explain the reason for any recommended change, and include supporting data. The FAA will consider all comments received by the closing date and may amend the proposal because of those comments.
Except for Confidential Business Information CBI as described in the following paragraph, and other information as described in 14 CFR
11.35, the FAA will post all comments received, without change, to https
www.regulations.gov, including any personal information you provide. The agency will also post a report
PO 00000

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summarizing each substantive verbal contact received about this NPRM.
Confidential Business Information CBI is commercial or financial information that is both customarily and actually treated as private by its owner.
Under the Freedom of Information Act FOIA 5 U.S.C. 552, CBI is exempt from public disclosure. If your comments responsive to this NPRM
contain commercial or financial information that is customarily treated as private, that you actually treat as private, and that is relevant or responsive to this NPRM, it is important that you clearly designate the submitted comments as CBI. Please mark each page of your submission containing CBI
as PROPIN. The FAA will treat such marked submissions as confidential under the FOIA, and they will not be placed in the public docket of this NPRM. Submissions containing CBI
should be sent to Jim Rutherford, Aviation Safety Engineer, FAA, General Aviation & Rotorcraft Section, International Validation Branch, 901
Locust, Room 301, Kansas City, MO
64106. Any commentary that the FAA
receives which is not specifically designated as CBI will be placed in the public docket for this rulemaking.
Background The Agencia Nacional de Aviacao Civil ANAC, which is the aviation authority for Brazil, has issued ANAC
AD 20200503, effective June 1, 2020
ANAC AD 20200503 also referred to after this as the MCAI, to correct an unsafe condition on Embraer S.A.
Models EMB500 and EMB505
airplanes with certain engines installed.
Although the affected airplanes were designed for operation at temperatures below 54 C, the operational envelope in the AFM does not contain the necessary limitations and procedures to operate safely in these colder temperatures. The MCAI states that operation of the affected airplanes at static air temperatures below 54 C
without these limitations could cause several systems and components to operate inadequately, resulting in multiple systems failures.
Accordingly, the MCAI requires updating the AFM to incorporate a modified operational envelope that establishes restrictions and minimum airspeed required for each static temperature range. The FAA is
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