# Airworthiness Directives; Saab AB, Support and Services (Formerly Known as Saab AB, Saab Aeronautics) Airplanes
> **Rule** · Final rule. · Published 2023-09-14 · Effective 2023-10-19 · 88 FR 63009
## Document
- **Document number:** 2023-19899
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 88 FR 63009
- **Publication date:** 2023-09-14
- **Effective date:** 2023-10-19
- **FAA docket:** Docket No. FAA-2023-1215
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Saab AB, Support and Services Model 340A (SAAB/SF340A) and SAAB 340B airplanes. This AD was prompted by reports of a high number of events related to stall warnings upon landing, following introduction of the ice speed function within the stall warning system. This AD requires modification of the stall warning/identification system, as specified in a European Union Aviation Safety Agency (EASA) 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/2023/09/14/2023-19899/airworthiness-directives-saab-ab-support-and-services-formerly-known-as-saab-ab-saab-aeronautics)
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