# Proposed AD FAA-2020-0493: Textron Aviation, Inc. Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2020-24-06
- Products: Textron
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 2, 2020, 85 FR 33583
- Comments due: July 17, 2020
- Became: [AD 2020-24-06](https://openairdocs.org/ad/2020-24-06)
- Docket: FAA-2020-0493 (https://www.regulations.gov/docket/FAA-2020-0493, where comments are filed)
- FR document: 2020-11351
- Official PDF: https://openairdocs.org/files/sha256/e2/00/e200a06b4e8845c75bbf5051ff0aeea8e6740bc1caff2623557d52cd3c0deb57 (from https://www.govinfo.gov/content/pkg/FR-2020-06-02/pdf/2020-11351.pdf)
- Federal Register: https://www.federalregister.gov/documents/2020/06/02/2020-11351/airworthiness-directives-textron-aviation-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8B85FA0D40F186088625857B003E98AC.0001
- Page: https://openairdocs.org/proposed/FAA-2020-0493

## Summary

The FAA proposes to supersede Airworthiness Directive (AD) 2019-08-13 for Textron Aviation, Inc. (type certificate previously held by Cessna Aircraft Company) Models 525, 525A, and 525B airplanes with Tamarack active load alleviation system (ATLAS) winglets installed in accordance with Supplemental Type Certificate (STC) SA03842NY. AD 2019- 08-13 resulted from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as malfunction of the ATLAS. This AD results from the identification of corrective actions that, if implemented, allow operators to reactivate the ATLAS and restore operations to normal procedures. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Jun 2, 2020: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-11351, comments due Jul 17, 2020 (https://www.federalregister.gov/documents/2020/06/02/2020-11351/airworthiness-directives-textron-aviation-inc-airplanes)

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