AD 2024-15-09

Literal model wording

The recorded model designators are 525, 525A, 525B. Wording before the model list:

Textron Aviation Inc. (type certificate 
previously held by Cessna Aircraft Company) 

Original model-list text:

525, 525A, and 
525B

Manufacturer identity has not been resolved. Serial, part and other qualifiers have not been evaluated; installed configuration remains unknown. These literal observations do not determine aircraft applicability or compliance.

Find publications recording 525 · Find publications recording 525A · Find publications recording 525B

Applicability text in this publication

(c) Applicability

    This AD applies to Textron Aviation Inc. (type certificate 
previously held by Cessna Aircraft Company) Model 525, 525A, and 
525B airplanes, all serial numbers (S/Ns), certificated in any 
category, with Tamarack active technology load alleviation system 
(ATLAS) winglets installed in accordance with Supplemental Type 
Certificate No. SA03842NY.

Effective-date text

This airworthiness directive (AD) is effective October 22, 2024.

Publication context

Historical effective date recorded in the publication: 2024-10-22. This date does not establish which directive controls today.

The publication records no affected prior directives in its Affected ADs paragraph. This says nothing about the number of directives applicable to an aircraft.

(b) Affected ADs

    None.

Official sources

Read the Federal Register HTML publication · Read the official PDF publication

Sources retrieved: HTML 2026-09-08; PDF 2026-09-08.

The displayed text comes from the HTML publication. Refer to the official documents for the original wording.

This selected source edition is not a complete list of current airworthiness directives. Referenced manufacturer service documents are not reproduced here.