AD 2013-24-16
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Schempp-Hirth Flugzeugbau GmbH Gliders |
Unsafe Condition
The instructions provided to inspect the propeller hub and blades are insufficient for detecting cracks and/or other damage, and other operating instructions provided by the flight and maintenance manual are incorrect and insufficient.
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Required Actions
Incorporate amended pages into the applicable FAA-approved sailplane flight manual (SFM) within 30 days after the effective date. Within 60 days after the effective date, incorporate amended pages into the FAA-approved SFM and sailplane maintenance manual (SMM), as applicable, and install the amended cockpit placards.
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Compliance Time
Within 30 days and 60 days after January 28, 2014
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Affected Aircraft
Schempp-Hirth Flugzeugbau GmbH Model Duo Discus T gliders, serial numbers (S/N) 1 through 240, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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