{"id":"F2006B05329","name":"AD/P166/35 - Front Seat Restraint Installations - Modification","slug":"ad-p166-35-front-seat-restraint-installations-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45796,"registerId":"commonwealth-F2006B05329-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/P166/35 - Front Seat Restraint Installations - 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)  Piaggio P166 Series Aeroplanes\n\n \n\nAD/P166/35 Front Seat Restraint Installations - Modification 11/72\n\nApplicability: All models.\n\n \n\nRequirement: Modify each front seat restraint installation by fitting a safety harness in accordance with a scheme approved by the Secretary.\n\n \n\nNote: Guidelines for installation schemes are outlined in Airworthiness Advisory Circular No. 62 dated March 1972.\n\n \n\nCompliance: Before 1 December 1973.\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":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1912},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This is a targeted Airworthiness Directive (AD) addressing a specific airworthiness safety concern (inadequate front seat restraints) for a specific aircraft type. It has not expanded beyond its original technical safety purpose."},"complexity_factors":["Single operative provision with no subsections or subdivisions","No definitions or interpretation section","Only one condition (Secretary approval required)","No exceptions, exemptions, or conditional logic","Specific to single aircraft type (Piaggio P166)","Total length under 150 words"],"plain_english_summary":"**What this means:** If you own or operate a **Piaggio P166 aircraft**, you must upgrade the front seat belts to proper safety harnesses (shoulder straps) to better protect pilots and front-seat passengers during accidents or hard landings.\n\n**Who it affects:** All operators of Piaggio P166 series aeroplanes, regardless of model variant.\n\n**What you must do:**\n- Install safety harnesses in each front seat, modifying the existing restraint installation\n- Use an installation plan (scheme) that has been approved by the **Secretary** (the senior government official responsible for aviation safety at the time)\n- Complete the work before **1 December 1973**\n\n**Helpful guidance:** While not mandatory to follow, *Airworthiness Advisory Circular No. 62* (March 1972) provides technical guidelines for designing your installation scheme.\n\nThis is a one-off safety modification with a strict deadline—essentially a recall notice for aircraft seatbelts."}},"importantCases":[],"_links":{"self":"/api/acts/ad-p166-35-front-seat-restraint-installations-modification","history":"/api/acts/ad-p166-35-front-seat-restraint-installations-modification/history","analysis":"/api/acts/ad-p166-35-front-seat-restraint-installations-modification/analysis","conflicts":"/api/acts/ad-p166-35-front-seat-restraint-installations-modification/conflicts","importantCases":"/api/acts/ad-p166-35-front-seat-restraint-installations-modification/important-cases","documents":"/api/acts/ad-p166-35-front-seat-restraint-installations-modification/documents"}}