{"id":"F2006B03614","name":"AD/BEECH 18/16 - Front Seat Restraint Installations - Modification","slug":"ad-beech-18-16-front-seat-restraint-installations-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43205,"registerId":"commonwealth-F2006B03614-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 18/16 - Front Seat Restraint Installations -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)  Beechcraft 18 Series Aeroplanes\n\n \n\nAD/BEECH 18/16 Front Seat Restraint Installations - Modification 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\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1625},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original narrow scope. It addresses only the specific safety issue of front seat restraints in Beechcraft 18 series aircraft and has not expanded to cover other aircraft types, seat positions, or unrelated safety matters since its issuance in 1971."},"complexity_factors":["Extremely short text containing only three operative provisions","No defined terms, interpretation clauses, or technical legal jargon","Single unconditional obligation with no exceptions, exemptions, or conditional logic","No cross-references to other legislative provisions beyond the enabling Civil Aviation Regulations 1998"],"plain_english_summary":"**What this is:** This is an Airworthiness Directive (AD) — a mandatory safety order issued under the Civil Aviation Regulations by the Civil Aviation Safety Authority (CASA) requiring specific modifications to aircraft.\n\n**What it requires:** All models of the Beechcraft 18 series aeroplanes must have their front seat restraint systems modified to fit a safety harness (a secure seat belt system). The modification must be done according to a design scheme approved by the Secretary (the senior government official responsible for aviation at the time).\n\n**Who it affects:** Owners and operators of Beechcraft 18 series aircraft.\n\n**Why it matters:** This directive ensures front seat occupants are properly restrained during flight, significantly reducing the risk of serious injury during turbulence or accidents. While this directive originally required compliance by 1 September 1972, it remains relevant for the ongoing airworthiness and maintenance of these historic aircraft."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-18-16-front-seat-restraint-installations-modification","history":"/api/acts/ad-beech-18-16-front-seat-restraint-installations-modification/history","analysis":"/api/acts/ad-beech-18-16-front-seat-restraint-installations-modification/analysis","conflicts":"/api/acts/ad-beech-18-16-front-seat-restraint-installations-modification/conflicts","importantCases":"/api/acts/ad-beech-18-16-front-seat-restraint-installations-modification/important-cases","documents":"/api/acts/ad-beech-18-16-front-seat-restraint-installations-modification/documents"}}