{"id":"F2006B04919","name":"AD/CESSNA 150/20 - Front Seat Restraint Installations","slug":"ad-cessna-150-20-front-seat-restraint-installations","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44763,"registerId":"commonwealth-F2006B04919-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 150/20 - Front Seat Restraint Installations","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 150, F150, 152 & F152 Series Aeroplanes\n\n \n\nAD/CESSNA 150/20 Front Seat Restraint Installations 10/71\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","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1202},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This airworthiness directive maintains its original narrow scope concerning front seat safety harness installation for specific Cessna aircraft models. It has not expanded beyond this singular technical safety requirement."},"complexity_factors":["Single, unambiguous requirement with no exceptions or conditions","No defined terms or interpretation section","No cross-references to other legislative instruments","Straightforward applicability applying to all models uniformly"],"plain_english_summary":"**What this does:** This airworthiness directive requires all Cessna 150 and 152 series aircraft (including French-built F150 and F152 models) to be modified by installing safety harnesses in the front seats.\n\n**Who it affects:** Owners and operators of these specific light aircraft models.\n\n**What must be done:** Each front seat restraint system must be upgraded to include a safety harness (seatbelt system), installed according to a design scheme approved by the Secretary (the government aviation safety authority).\n\n**Why it matters:** This safety requirement ensures pilots and front-seat passengers are properly secured during flight, reducing the risk of injury during turbulence or accidents. The deadline for compliance was 1 September 1972."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-150-20-front-seat-restraint-installations","history":"/api/acts/ad-cessna-150-20-front-seat-restraint-installations/history","analysis":"/api/acts/ad-cessna-150-20-front-seat-restraint-installations/analysis","conflicts":"/api/acts/ad-cessna-150-20-front-seat-restraint-installations/conflicts","importantCases":"/api/acts/ad-cessna-150-20-front-seat-restraint-installations/important-cases","documents":"/api/acts/ad-cessna-150-20-front-seat-restraint-installations/documents"}}