AD 75-17-23 R2

final rule
Data completeness: 70%

Airworthiness Directives; Siai-Marchetti Models S205-18F, S205-18R, S205-20F, S205-20R, S205-22R, S208, and S208A Airplanes

AD Number
75-17-23 R2
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft Aermacchi S.p.A. S.205 - 18/F Airworthiness Directives; Siai-Marchetti Models S205-18F, S205-18R, S205-20F, S205-20R, S205-22R, S208, and S208A Airplanes
aircraft Aermacchi S.p.A. S.205 - 18/R Airworthiness Directives; Siai-Marchetti Models S205-18F, S205-18R, S205-20F, S205-20R, S205-22R, S208, and S208A Airplanes
aircraft Aermacchi S.p.A. S.205 - 20/F Airworthiness Directives; Siai-Marchetti Models S205-18F, S205-18R, S205-20F, S205-20R, S205-22R, S208, and S208A Airplanes
aircraft Aermacchi S.p.A. S.205 - 20/R Airworthiness Directives; Siai-Marchetti Models S205-18F, S205-18R, S205-20F, S205-20R, S205-22R, S208, and S208A Airplanes
aircraft Aermacchi S.p.A. S.205 - 22/R Airworthiness Directives; Siai-Marchetti Models S205-18F, S205-18R, S205-20F, S205-20R, S205-22R, S208, and S208A Airplanes
aircraft Aermacchi S.p.A. S.208 Airworthiness Directives; Siai-Marchetti Models S205-18F, S205-18R, S205-20F, S205-20R, S205-22R, S208, and S208A Airplanes
aircraft Aermacchi S.p.A. S.208A Airworthiness Directives; Siai-Marchetti Models S205-18F, S205-18R, S205-20F, S205-20R, S205-22R, S208, and S208A Airplanes

Unsafe Condition

Cracks in the internal wing rib brackets (P/N 205-3-033-18 and 205-3-034-18) could result in failure of the landing gear operating mechanism.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Inspect the internal wing rib brackets for cracks in accordance with Service Bulletin 205B37D. If cracks exceed 10 mm (0.394 inch), replace the brackets with new ones of the same part number and replace associated washers (P/N AN960-516L) with new countersunk washers (P/N 205-3-053-16). Continue inspections until brackets are replaced with P/N 205-3-313-11 and 205-3-313-12.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Within the next 25 hours time in service after the effective date of this AD, unless already accomplished within the last 75 hours time in service, and thereafter at intervals not to exceed 100 hours time in service from the last inspection.

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Aermacchi S.p.A. Models S205-18F, S205-18R, S205-20F, S205-20R, S205-22R, S208, and S208A airplanes 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 8, 2026

Rights: U.S. Government Public Domain

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