AD Amdt-39-21255
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bell | Various | Airworthiness Directives; Glasflugel |
| aircraft | Aviat | Various | Airworthiness Directives; Glasflugel |
Unsafe Condition
Jamming between the double two-ring end of the towing cable and the deflector angles of the C.G. release mechanism was reported. Subsequent investigation identified incorrect geometry of the deflector angles of the affected part as likely cause of the jamming. This condition, if not detected and corrected, could lead to failure to disconnect the towing cable, possibly resulting in reduced or loss of control of the sailplane.
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Required Actions
Inspect the distance between the deflector-angles of the C.G. release mechanism and modify the deflector-angles if necessary. The inspection should be done at intervals not to exceed 12 months. The inspection and modification should be done in accordance with Glasfaser-Flugzeug-Service GmbH Technical Note No. 5-2018, dated June 25, 2018.
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Compliance Time
Within 12 months of effective date
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Affected Aircraft
Glasflugel Models Club Libelle 205, H 301 ``Libelle,'' H 301B ``Libelle,'' Kestrel, Mosquito, Standard ``Libelle,'' and Standard Libelle-201B gliders, certificated in any category, with a center of gravity (C.G.) tow release installed.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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