AD 66-08-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Air & Space America, Inc. | 18A | Airworthiness Directives; Air and Space Model 18A Gyroplanes |
Unsafe Condition
The lateral control system may have insufficient strength due to inadequate design of the control tube and bellcrank assembly, leading to failure during flight.
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Required Actions
Modify the gyroplanes by following Air & Space Manufacturing Inc. Service Bulletin No. 4, dated November 16, 1965, or an equivalent approved by the FAA. The modification must include strengthening the control tube and bellcrank assembly.
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Compliance Time
before further flight
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Affected Aircraft
Air & Space America, Inc. Model 18A Gyroplanes, Serial Numbers 18-6 through 18-49.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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