{"id":"F2006B11408","name":"AD/NAV/3 - Front Seat Restraint Installations - Modification","slug":"ad-nav-3-front-seat-restraint-installations-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":57309,"registerId":"commonwealth-F2006B11408-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/NAV/3 - Front Seat Restraint Installations -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)  Navion Series Aeroplanes\n\n \n\nAD/NAV/3 Front Seat Restraint Installations - Modification NK\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":1335},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow technical scope regarding front seat restraint modifications for Navion aircraft safety."},"complexity_factors":["Single, specific aircraft applicability (Navion Series only)","Single straightforward compliance action (fit approved safety harness)","One cross-reference to external advisory document","No defined terms, nested conditions, or exceptions"],"plain_english_summary":"**What this requires:**\nOwners and operators of **Navion series aircraft** must modify the front seat restraints (seatbelts) by installing safety harnesses (shoulder straps) using an installation scheme approved by the Secretary (of the relevant aviation authority).\n\n**Who it affects:**\nAnyone who owns or operates any model of Navion series aeroplanes.\n\n**Why it matters:**\nThis safety directive ensures front seat occupants have upper body restraint during turbulence or accidents, significantly reducing the risk of head and torso injuries. The modification was required to be completed before **1 December 1973**.\n\n**Key details:**\n- Installation schemes must follow guidelines in **Airworthiness Advisory Circular No. 62** (dated March 1972)\n- Applies to all models in the Navion series\n- The directive sits under Part 39 of the Civil Aviation Regulations (airworthiness directives)"}},"importantCases":[],"_links":{"self":"/api/acts/ad-nav-3-front-seat-restraint-installations-modification","history":"/api/acts/ad-nav-3-front-seat-restraint-installations-modification/history","analysis":"/api/acts/ad-nav-3-front-seat-restraint-installations-modification/analysis","conflicts":"/api/acts/ad-nav-3-front-seat-restraint-installations-modification/conflicts","importantCases":"/api/acts/ad-nav-3-front-seat-restraint-installations-modification/important-cases","documents":"/api/acts/ad-nav-3-front-seat-restraint-installations-modification/documents"}}