AD 2008-26-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Aircraft Industries a.s. (Type Certificate G60EU previously held by LETECKÉ ZÁVODY a.s. and LET Aeronautical Works) Model L 23 Super Blanik Sailplane |
Unsafe Condition
Cracks in zones where the front and aft control levers attach the connecting rod designated as 'control bridge' on the relevant Illustrated Parts Catalogues (IPC). If left uncorrected, cracks could propagate and lead to the breakage of the connecting rod with subsequent loss of control of the sailplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect the control bridge in areas of juncture with the two control sticks for cracks using a 10X magnifier and dye penetrant inspection. Replace the defective control bridge bedding (Dwg. No. A740 371N) in the control bridge assembly (Dwg. No. A740 370N) if cracks are found. Update the aircraft Maintenance Manual (MM) to incorporate repetitive inspections of the control bridge.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 3 months after January 28, 2009, and repetitively thereafter at intervals not to exceed 12 months.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Aircraft Industries a.s. Model L 23 Super Blanik sailplanes, all serial numbers, certificated in any category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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