AD Amdt-39-11142
Unsafe Condition
Oil leakage from the red silicone tube of the rotor interior air cooling system can lead to oil contamination of the heat damping layer of the lower exhaust damper fairing, potentially resulting in an exhaust fire and/or explosion.
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Required Actions
Inspect the red silicone tube of the rotor interior air cooling system for oil leaks and the heat damping layer of the lower exhaust damper fairing for oil contamination. Replace applicable parts where oil leakage or contamination is found.
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Compliance Time
Before further flight
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Affected Aircraft
All Alexander Schleicher 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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