{"id":"F2006B06693","name":"AD/RYAN/2 - Seat Restraint Installations - Modifications","slug":"ad-ryan-2-seat-restraint-installations-modifications","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":114498,"registerId":"commonwealth-F2006B06693-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/RYAN/2 - Seat Restraint Installations - Modifications","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)  Ryan ST Series Aeroplanes\n\n \n\nAD/RYAN/2 Seat Restraint Installations - Modifications NK\n\nApplicability: All models.\n\n \n\nRequirement: Modify each 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 January 1974 unless already accomplished.\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n \n\n![](image.001.png)  \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1241},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive remains focused on its original purpose: mandating safety harness installation in Ryan ST Series aircraft. No evidence of scope expansion beyond the specific technical modification described."},"complexity_factors":["Single, straightforward requirement without subsections or conditional clauses","Minimal cross-referencing (only one external document: Advisory Circular No. 62)","No definitions section or interpretation provisions","Simple binary applicability statement ('All models')"],"plain_english_summary":"**What this does:** This directive mandates a safety upgrade for all Ryan ST Series aircraft. Owners must modify the seat restraint systems to install proper safety harnesses (shoulder straps, not just lap belts) to better protect occupants during accidents or sudden stops.\n\n**Who it affects:** Anyone who owns or operates a Ryan ST Series aeroplane.\n\n**What must be done:** The aircraft owner must fit safety harnesses to the seats following an installation plan (called a \"scheme\") that has been formally approved by the Secretary (the senior government official responsible for aviation safety). Guidelines for creating this installation plan are available in Airworthiness Advisory Circular No. 62 from March 1972.\n\n**Why it matters:** This prevents passengers and pilots from being thrown forward or ejected during turbulence, crashes, or hard landings. The deadline for completing this work was 1 January 1974."}},"importantCases":[],"_links":{"self":"/api/acts/ad-ryan-2-seat-restraint-installations-modifications","history":"/api/acts/ad-ryan-2-seat-restraint-installations-modifications/history","analysis":"/api/acts/ad-ryan-2-seat-restraint-installations-modifications/analysis","conflicts":"/api/acts/ad-ryan-2-seat-restraint-installations-modifications/conflicts","importantCases":"/api/acts/ad-ryan-2-seat-restraint-installations-modifications/important-cases","documents":"/api/acts/ad-ryan-2-seat-restraint-installations-modifications/documents"}}