AD 66-29-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aermacchi S.p.A. | S.205 - 18/F | Airworthiness Directives; Siai-Marchetti Model S.205 Airplanes |
| aircraft | Aermacchi S.p.A. | S.205 - 18/R | Airworthiness Directives; Siai-Marchetti Model S.205 Airplanes |
| aircraft | Aermacchi S.p.A. | S.205 - 20/F | Airworthiness Directives; Siai-Marchetti Model S.205 Airplanes |
| aircraft | Aermacchi S.p.A. | S.205 - 20/R | Airworthiness Directives; Siai-Marchetti Model S.205 Airplanes |
| aircraft | Aermacchi S.p.A. | S.205 - 22/R | Airworthiness Directives; Siai-Marchetti Model S.205 Airplanes |
Unsafe Condition
Cracks on the rear spar web adjacent to the aileron outboard hinge bracket bolts.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect the rear spar web for cracks in accordance with Siai Service Bulletin No. 205B4 within 10 hours' time in service after the effective date (November 23, 1966), unless already done within the last 90 hours' time in service. Repeat inspections at intervals not exceeding 100 hours' time in service. If cracks are found, modify the rear spar with a reinforcement as per Service Bulletin 205B4 or an FAA-approved equivalent before further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 10 hours' time in service after the effective date of this AD, unless already accomplished within the last 90 hours' time in service, and thereafter at intervals not to exceed 100 hours' time in service from the last inspection
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Affected Aircraft
Siai-Marchetti Model S.205 Airplanes, Serial Numbers 101 through 222, 224, 228, 229, 231 through 233.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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