{"id":"F2006B07039","name":"AD/SM-205/17A - Aileron and Flap Control Cables - Inspection and Modification","slug":"ad-sm-205-17a-aileron-and-flap-control-cables-inspection-and-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48753,"registerId":"commonwealth-F2006B07039-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/SM-205/17A - Aileron and Flap Control Cables - Inspection and Modification","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-205/17A Aileron and Flap Control Cables - Inspection\n\nand Modification\n\n\n3/74\n\n \n\nApplicability: All models.\n\n \n\nDocument: 1. SIAI Marchetti SB 205B31B; or\n\n \n\n2. RAI AD No. 73-176/S205-27, S205-6 Revision 2.\n\n \n\nCompliance: Within 50 hours time in service after 29 March 1974 and thereafter at intervals not exceeding 50 hours time in service until modified.\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\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard Airworthiness Directive with a narrow, specific scope (control cables on two aircraft series). It has not expanded beyond its original safety purpose."},"complexity_factors":["Very short document (approximately 200 words)","Only 4 defined elements: applicability, document references, compliance deadline, and recurring interval","No cross-references to other legislation beyond citing the Civil Aviation Regulations 1998, Part 39","Simple conditional logic: inspect until modified, then stop","Single purpose: inspection and modification mandate with clear time intervals","No nested exceptions or complex definitions"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** issued by Australia's Civil Aviation Safety Authority (CASA). It applies to **SIAI Marchetti S205 and S208 series aeroplanes** (light aircraft).\n\n**What it does:**\n- Requires owners/operators to **inspect the aileron and flap control cables** (the wires that connect the pilot's controls to the wing surfaces that steer and slow the aircraft)\n- Mandates that these inspections happen **every 50 hours of flight time**\n- Requires **modification** of the cables to fix a safety issue, after which the 50-hourly inspections can stop\n\n**Who it affects:**\n- Owners and operators of these specific Italian-made aircraft\n- Maintenance engineers who work on them\n\n**Why it matters:**\nControl cables are critical safety components. If they fail, the pilot cannot control the aircraft's roll (ailerons) or lift/speed (flaps). This AD was issued to prevent accidents caused by cable deterioration or failure.\n\n**Key requirement:** First inspection within 50 flight hours after 29 March 1974, then every 50 hours until the modification is done."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The AD as provided applies to all models of the SIAI Marchetti S205 and S208 and sets a repeating inspection requirement until modification. The document does not indicate any change to that scope from an earlier or original intent within the text supplied; the applicability and compliance obligations are stated directly (Applicability; Compliance)."},"complexity_factors":["Narrow technical subject limited to aileron and flap control cables (Title)","Clear applicability stated as \"All models\" of S205 and S208 (Applicability)","Short, precise recurring inspection interval defined (50 hours TIS) and a concrete start date (29 March 1974) (Compliance)","Dependency on external procedural documents for the detailed inspection and modification steps (Document)","Temporal termination condition for recurring inspections is completion of the modification, creating a binary state (unmodified vs modified) that operators must track (Compliance)"],"plain_english_summary":"This AD mandates repeated inspections of aileron and flap control cables on SIAI Marchetti S205/S208 aeroplanes—first within 50 flight hours after 29 March 1974 and every 50 hours thereafter—until the aircraft is modified per the cited SIAI Marchetti SB or RAI AD procedures. It is mandatory for operators/owners, imposing recurring maintenance burden and creating an incentive to complete the modification to stop the inspections."}},"importantCases":[],"_links":{"self":"/api/acts/ad-sm-205-17a-aileron-and-flap-control-cables-inspection-and-modification","history":"/api/acts/ad-sm-205-17a-aileron-and-flap-control-cables-inspection-and-modification/history","analysis":"/api/acts/ad-sm-205-17a-aileron-and-flap-control-cables-inspection-and-modification/analysis","conflicts":"/api/acts/ad-sm-205-17a-aileron-and-flap-control-cables-inspection-and-modification/conflicts","importantCases":"/api/acts/ad-sm-205-17a-aileron-and-flap-control-cables-inspection-and-modification/important-cases","documents":"/api/acts/ad-sm-205-17a-aileron-and-flap-control-cables-inspection-and-modification/documents"}}