# Airworthiness Directives; Embraer S.A. Airplanes
> **Rule** · Final rule. · Published 2021-12-21 · Effective 2022-01-25 · 86 FR 72183
## Document
- **Document number:** 2021-27511
- **Category:** airworthiness
- **Manufacturer:** Embraer S.A.
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 86 FR 72183
- **Publication date:** 2021-12-21
- **Effective date:** 2022-01-25
- **FAA docket:** Docket No. FAA-2020-1077
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Embraer S.A. Model EMB-500 and EMB-505 airplanes. This 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 [deg]C. This AD requires revising the airplane flight manual (AFM) to incorporate new and revised airspeed limitations and procedures. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2021/12/21/2021-27511/airworthiness-directives-embraer-sa-airplanes)
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