AD 98-09-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Alexander Schleicher GmbH & Co. | ASK 21 | Airworthiness Directives; Alexander Schleicher Segelflugzeugbau Model ASK 21 Sailplanes |
Unsafe Condition
Displacement of the plastic S-shaped rudder pedal tube could result in rudder control jamming, which could result in loss of directional control of the sailplane.
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Required Actions
Inspect the plastic S-shaped rudder pedal tube for displacement in accordance with Alexander Schleicher Technical Note No. 20, dated October 16, 1987. If displaced, correct the placement prior to further flight in accordance with the same technical note.
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Compliance Time
within the next 6 calendar months after the effective date of this AD, unless already accomplished
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Affected Aircraft
Alexander Schleicher GmbH & Co. Model ASK 21 sailplanes, serial numbers 21001 through 21345
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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