# Proposed AD FAA-2020-1035: Yabora Industria Aeronautica S.A. (Type Certificate Previously Held by Embraer S.A.) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-04-09
- Products: Yaborã Indústria Aeronáutica
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 27, 2020, 85 FR 75964
- Comments due: January 11, 2021
- Became: [AD 2021-04-09](https://openairdocs.org/ad/2021-04-09)
- Docket: FAA-2020-1035 (https://www.regulations.gov/docket/FAA-2020-1035, where comments are filed)
- Project: MCAI-2020-01017-T
- FR document: 2020-26045
- Official PDF: https://openairdocs.org/files/sha256/d4/9f/d49fc8d42adf1c048430dd359431816505f728fc0869d239e4763f3d8d0d0957 (from https://www.govinfo.gov/content/pkg/FR-2020-11-27/pdf/2020-26045.pdf)
- Federal Register: https://www.federalregister.gov/documents/2020/11/27/2020-26045/airworthiness-directives-yabor-indstria-aeronutica-sa-type-certificate-previously-held-by-embraer-sa
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5B60A174EADBAFB18625862D0056EF37.0001
- Page: https://openairdocs.org/proposed/FAA-2020-1035

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Yabora Industria Aeronautica S.A. Model EMB-135, EMB-145, -145ER, -145MR, -145LR, -145XR, -145MP, and - 145EP airplanes. This proposed AD was prompted by reports that calculations provided by the automatic takeoff thrust control system (ATTCS) are incorrect under certain conditions. This proposed AD would require updating the software of the installed full authority digital engine control (FADEC) systems, as specified in an Agencia Nacional de Aviacao Civil (ANAC) AD, which will be incorporated by reference. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Nov 27, 2020: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-26045, comments due Jan 11, 2021 (https://www.federalregister.gov/documents/2020/11/27/2020-26045/airworthiness-directives-yabor-indstria-aeronutica-sa-type-certificate-previously-held-by-embraer-sa)

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