AD 2019-08-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | Models 525 | Airworthiness Directives; Textron Aviation, Inc. Airplanes |
| aircraft | Cessna | Various | Airworthiness Directives; Textron Aviation, Inc. Airplanes |
| aircraft | Textron | Aviation | Airworthiness Directives; Textron Aviation, Inc. Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Textron Aviation, Inc. Airplanes |
Unsafe Condition
Malfunction of the Tamarack active load alleviation system (ATLAS) may reduce the pilot's ability to control the airplane, leading to loss of control of the airplane with consequent loss of life.
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Required Actions
Deactivate the Tamarack ATLAS, fix the Tamarack active control surfaces (TACS) in place, revise the operating limitations in the AFM, and fabricate and install a placard to prohibit further flight.
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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 active load alleviation system (ATLAS) winglets installed in accordance with Supplemental Type Certificate (STC) SA03842NY.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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