AD 69-19-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Slingsby Aviation Ltd. | Type T.53.B. | Airworthiness Directives; Slingsby Model T.53B Gliders |
Unsafe Condition
Incorrect tailplane incidence during aero-towing could prevent proper glider trimming.
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Required Actions
Check tailplane incidence to ensure it is 1 degree 50' ±20'. Adjust incidence to specified measurement if incorrect, following Slingsby Technical Instruction No. 40 or FAA-approved equivalent.
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Compliance Time
within the next 10 hours' time in service after the effective date of this AD
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Affected Aircraft
Slingsby Aviation Ltd. Model T.53B Gliders
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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