AD Amdt-39-10489
Unsafe Condition
Failure of the internal cooling system air fan caused by the impeller slipping, which could result in loss of compression and power and possible engine failure.
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Required Actions
Replace the internal cooling air fan with a modified fan that incorporates the specified modification.
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Compliance Time
Before further flight
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Affected Aircraft
Alexander Schleicher GmbH Segelflugzeugbau Model ASH-26E sailplanes
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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