{"id":"F2006B08313","name":"AD/CESSNA 400/27 - Front Seat Restraint Installations - Modification","slug":"ad-cessna-400-27-front-seat-restraint-installations-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115720,"registerId":"commonwealth-F2006B08313-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 400/27 - Front Seat Restraint Installations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)  Cessna 400 Series Aeroplanes\n\n \n\nAD/CESSNA 400/27  Front Seat Restraint Installations - Modification\n\n\n9/71\n\n \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\nCompliance: Before 1 September 1972.\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\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1600},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow technical scope regarding front seat restraint modifications for Cessna 400 aircraft."},"complexity_factors":["Single sentence operational requirement with no exceptions","No defined terms section or interpretive provisions","Only external reference is to Secretary approval","Absolute compliance deadline with no conditional triggers"],"plain_english_summary":"**What this requires**\n\nThis directive applies to all models of Cessna 400 series aircraft. It mandates that front seat restraints (seatbelts) be modified to include safety harnesses.\n\n**Key details**\n\n* **Who must comply**: Owners or operators of Cessna 400 series aeroplanes\n* **What must be done**: Fit safety harnesses to each front seat according to a scheme approved by the Secretary (the relevant government authority)\n* **Deadline**: Before 1 September 1972\n\n**Why it matters**\n\nThis ensures front seat occupants have proper upper body restraint during turbulence or accidents, improving survival and injury outcomes compared to lap-only belts."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-400-27-front-seat-restraint-installations-modification","history":"/api/acts/ad-cessna-400-27-front-seat-restraint-installations-modification/history","analysis":"/api/acts/ad-cessna-400-27-front-seat-restraint-installations-modification/analysis","conflicts":"/api/acts/ad-cessna-400-27-front-seat-restraint-installations-modification/conflicts","importantCases":"/api/acts/ad-cessna-400-27-front-seat-restraint-installations-modification/important-cases","documents":"/api/acts/ad-cessna-400-27-front-seat-restraint-installations-modification/documents"}}