AD 2020-24-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | Models 525 | Airworthiness Directives; Textron Aviation, Inc., (Type Certificate Previously Held by Cessna Aircraft Company) Airplanes |
| aircraft | Cessna | Various | Airworthiness Directives; Textron Aviation, Inc., (Type Certificate Previously Held by Cessna Aircraft Company) Airplanes |
| aircraft | Textron | Aviation | Airworthiness Directives; Textron Aviation, Inc., (Type Certificate Previously Held by Cessna Aircraft Company) Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Textron Aviation, Inc., (Type Certificate Previously Held by Cessna Aircraft Company) Airplanes |
Unsafe Condition
Malfunction of the Tamarack Active Load Alleviation System (ATLAS) winglets, which could lead to loss of control of the airplane.
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Required Actions
Installing the modified Tamarack Active Camber Surface (TACS) control unit (TCU) and centering strips, and revising the Tamarack maintenance manual supplement to include instructions for continued airworthiness relating to the centering strips.
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Compliance Time
Before further flight
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Affected Aircraft
Textron Aviation, Inc., Models 525, 525A, and 525B airplanes with Tamarack ATLAS winglets installed in accordance with Supplemental Type Certificate (STC) SA03842NY.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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