AD 2010-18-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Aircraft Industries a.s. (Type Certificate G24EU Previously Held by LETECKÉ ZÁVODY a.s. and LET Aeronautical Works) Model L-13 Blanik Gliders |
Unsafe Condition
The main spar of the right wing failed near the root due to positive load, leading to wing detachment and loss of control. Preliminary investigation suggests the fracture may have been due to fatigue.
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Required Actions
Inspect the main spar at the root of the wing to detect fatigue cracking. Accomplish relevant corrective actions as necessary. Verify compliance with flight limitations specified in Aircraft Industries a.s. Mandatory Bulletin No. L13/109a.
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Compliance Time
Before further flight
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Affected Aircraft
Aircraft Industries a.s. Model L-13 Blanik Gliders, including L-13 A Blanik sailplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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