{"id":"F2006B07060","name":"AD/SM-205/38 - Landing Gear Rod Springs","slug":"ad-sm-205-38-landing-gear-rod-springs","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48799,"registerId":"commonwealth-F2006B07060-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/SM-205/38 - Landing Gear Rod Springs","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  SIAI Marchetti S205 and S208 Series Aeroplanes\n\n \n\nAD/SM-205/38 Landing Gear Rod Springs 9/97\n\nApplicability: All models S.208 and S.208A.\n\n \n\nRequirement: Action in accordance with SIAI Marchetti SB 205B59.\n\n \n\nNote: RAI AD 97-143 refers\n\n \n\nCompliance: Within 50 hours time in service after 14 August 1997 or at the next inspection for Maintenance Release issue after 14 August 1997, whichever occurs first.\n\n \n\nThis airworthiness directive becomes effective on 14 August 1997.\n\n \n\nBackground: The manufacturer has discovered that certain springs Part Number S205-6-205-13 had been manufactured from undersize wire.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive as published applies to all S.208 and S.208A aircraft and requires action per the manufacturer’s service bulletin; it identifies the defective part number and sets a compliance window. Nothing in the text indicates a change to scope from an earlier statement or intent. The AD delegates technical remediation to SB 205B59 and sets timing and applicability only, so scope remains the same as expressed in the document (Applicability; Requirement; Compliance; Background)."},"complexity_factors":["Narrow applicability limited to S.208 and S.208A models (Applicability)","Mandatory reference to an external document (SIAI Marchetti SB 205B59) for technical detail (Requirement)","Conditional compliance timing (within 50 hours TIS or at next Maintenance Release inspection, whichever is earlier) (Compliance)","Specific defective part number identified (S205-6-205-13) but remedial steps not detailed in the AD (Background; Requirement)","Administrative requirement to record compliance at Maintenance Release adds procedural steps for operators (Compliance)"],"plain_english_summary":"This AD affects all SIAI Marchetti S.208 and S.208A aeroplanes and requires owners/operators to carry out the actions in manufacturer’s Service Bulletin SB 205B59 after the manufacturer found certain landing-gear rod springs (P/N S205-6-205-13) were made from undersize wire.  \n\nCompliance is mandatory under CASA by 14 August 1997: complete SB 205B59 actions within 50 hours TIS or at the next Maintenance Release inspection, with owners/operators bearing costs and recording compliance."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific manufacturing defect in a specific aircraft part. It has not expanded beyond its original purpose of ensuring landing gear spring integrity for the affected SIAI Marchetti models."},"complexity_factors":["Single, specific applicability (two aircraft models only)","One clear compliance action (follow manufacturer bulletin)","Simple time-based compliance trigger (50 hours or next inspection)","No defined terms section","No cross-references to other legislation (only internal reference to related AD)","Background explanation provided in plain language","Total length: approximately 150 words"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). It requires owners and operators of specific Italian-made aircraft (SIAI Marchetti S.208 and S.208A models) to inspect or replace faulty landing gear springs.\n\n**What happened:** The manufacturer discovered that some landing gear rod springs were made from wire that was too thin (\"undersize\"), which could compromise the landing gear's strength and safety.\n\n**Who must act:** Anyone who owns or operates these specific aircraft models.\n\n**What they must do:** Follow the manufacturer's Service Bulletin (SB 205B59) — a technical instruction document — to address the defective springs.\n\n**When:** Within 50 hours of flying time after 14 August 1997, or at the next scheduled inspection for the aircraft's Maintenance Release (a certificate showing the plane is airworthy), whichever comes first.\n\n**Why it matters:** Faulty landing gear springs could fail during landing, potentially causing accidents. This directive ensures unsafe parts are identified and replaced before they cause harm."}},"importantCases":[],"_links":{"self":"/api/acts/ad-sm-205-38-landing-gear-rod-springs","history":"/api/acts/ad-sm-205-38-landing-gear-rod-springs/history","analysis":"/api/acts/ad-sm-205-38-landing-gear-rod-springs/analysis","conflicts":"/api/acts/ad-sm-205-38-landing-gear-rod-springs/conflicts","importantCases":"/api/acts/ad-sm-205-38-landing-gear-rod-springs/important-cases","documents":"/api/acts/ad-sm-205-38-landing-gear-rod-springs/documents"}}