AD 2017-02-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Alexander Schleicher GmbH & Co. Gliders |
Unsafe Condition
Cable slack in gliders equipped with a rudder hand control system leading to a short-term blockage of the rudder control system and reduced control.
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Required Actions
Replace the flight manual (FM) and maintenance manual (MM) pages with updated pages from ASK 21 Technical Note No. 38, dated May 31, 2016, depending on the specific rudder hand control system configuration.
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Compliance Time
Within 60 days after March 17, 2017
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Affected Aircraft
Alexander Schleicher GmbH & Co. Model ASK 21 gliders, all serial numbers, certificated in any category, modified with a rudder hand control system using either ASK 21 Technical Note No. 25 (dated February 16, 1993) or ASK 21 Technical Note No. 30 (dated January 22, 2007).
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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