FAA airworthiness directive publication
AD 2020-24-06
2020-11-23 · Final rule publication · Federal Register document 2020-25689
This page records a selected historical publication. Its current legal status, applicability to an individual aircraft and compliance have not been determined. Consult the current FAA directive and aircraft configuration and maintenance records.
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) Models 525, 525A, and
525B airplanes, certificated in any category, with Tamarack active
load alleviation system (ATLAS) winglets installed in accordance
with Supplemental Type Certificate SA03842NY.
Effective-date text
This airworthiness directive (AD) is effective December 28, 2020.
Publication context
Historical effective date recorded in the publication: 2020-12-28. This date does not establish which directive controls today.
This publication records a replacement statement naming 2019-08-13. Later publications and current legal status have not been evaluated.
(b) Affected ADs
This AD replaces AD 2019-08-13, Amendment 39-19634 (84 FR 24007,
May 24, 2019) (AD 2019-08-13).
Publications named in this historical statement
These links follow header labels in explicit historical source statements. Each publication remains a separate dated source edition. They do not establish current legal status, manufacturer identity, installed configuration, aircraft applicability or compliance.
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.