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Proposed rule

Airworthiness Directives; Embraer S.A. Airplanes

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Aug. 28, 2026. Document 2026-17609. Updated Nov. 6, 2026.

What it does

The FAA proposes to adopt a new airworthiness directive (AD) for certain Embraer S.A. Model EMB-545 and EMB-550 airplanes. This proposed AD was prompted by the possibility of the Ram Air Turbine (RAT) compartment door seal peeling off and becoming entangled with the RAT rotor. This proposed AD would require replacement of the RAT compartment door seal. The FAA is proposing this AD to address the unsafe condition on these products.

The Federal Aviation Administration's summary, as published in the Federal Register.

What it would change

1 part of Title 14 of the Code of Federal Regulations:

14 CFR 39

Before this

968 earlier Federal Register documents under regulation identifier 2120-AA64 since Jan. 1, 2025.

Since then:

What happens next and when

The FAA must receive comments on this proposed AD by October 13, 2026.

The agency's dates, word for word.

Document number2026-17609
ActionNotice of proposed rulemaking (NPRM).
AgenciesTransportation Department; Federal Aviation Administration
PublishedAug. 28, 2026
Comments closeOct. 13, 2026
Regulation identifier (RIN)2120-AA64
DocketFAA-2026-8791

Source: the Federal Register (public domain). The document in the Federal Register