# Airworthiness Directives; Yaborã Indústria Aeronáutica S.A. (Type Certificate Previously Held by Embraer S.A.) Airplanes
> **Rule** · Final rule; request for comments. · Published 2021-04-05 · Effective 2021-04-20 · 86 FR 17521
## Document
- **Document number:** 2021-07010
- **Category:** airworthiness
- **Manufacturer:** Yaborã Indústria Aeronáutica S.A. (Type Certificate Previously Held by Embraer S.A.)
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 86 FR 17521
- **Publication date:** 2021-04-05
- **Effective date:** 2021-04-20
- **FAA docket:** Docket No. FAA-2021-0253
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all Yabor[atilde] Ind[uacute]stria Aeron[aacute]utica S.A. Model EMB-135 and EMB-145 airplanes. This AD was prompted by a report involving disconnection of a side arm strut from the right main landing gear (MLG); a subsequent investigation found that the side arm strut lower bearing was installed inverted on the airplane. This AD requires doing a general visual inspection of the right and left MLG to verify certain conditions and doing all applicable on-condition actions, as specified in an Ag[ecirc]ncia Nacional de Avia[ccedil][atilde]o Civil (ANAC) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2021/04/05/2021-07010/airworthiness-directives-yabor-indstria-aeronutica-sa-type-certificate-previously-held-by-embraer-sa)
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