AD 75-22-18
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aermacchi S.p.A. | S.205 - 18/F | Airworthiness Directives; Siai-Marchetti Models S.205-18F and S.205-20F Airplanes |
| aircraft | Aermacchi S.p.A. | S.205 - 20/F | Airworthiness Directives; Siai-Marchetti Models S.205-18F and S.205-20F Airplanes |
Unsafe Condition
Failure of the nose landing gear due to cracks in the drag brace P/N 205-9-135 and its attachments P/Ns 205-1-059-01.
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Required Actions
Inspect the nose landing gear drag brace and attachments using visual and dye-penetrant methods per SB 205B33. Replace cracked components with reinforced parts (P/N 205-9-135-03 and P/Ns 205-1-180-01/-02) before further flight if cracks are found. If no cracks, replace parts within 50 hours' time in service or before 600 total hours, whichever is later.
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Compliance Time
Within the next 10 hours' time in service after the effective date (November 5, 1975), and thereafter every 50 hours' time in service. For hard-landings, inspections must be done before next takeoff unless flown under FAR 21.197/199 to a base for compliance.
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Affected Aircraft
Siai-Marchetti Models S.205-18F and S.205-20F airplanes with serial numbers 001-003; 102-399 (except 109); 4-101-4-282 (except 4-245); 4-285; 5-303.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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