{"id":"F2006B10330","name":"AD/GULL/3 - Front Seat Restraint Installations - Modification","slug":"ad-gull-3-front-seat-restraint-installations-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56086,"registerId":"commonwealth-F2006B10330-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/GULL/3 - Front Seat Restraint Installations -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)  Percival Vega Gull Series Aeroplanes\n\n \n\nAD/GULL/3 Front Seat Restraint Installations - Modification 11/72\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":1724},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This is the original 1972 directive. The scope remains focused solely on the specific safety modification for front seat restraints in Percival Vega Gull aircraft, with no expansion beyond this original technical safety purpose."},"complexity_factors":["Extremely short text (under 150 words)","Single operative requirement with no conditions or exceptions","No defined terms requiring interpretation","Clear applicability limited to one specific aircraft type (all models)","Simple compliance deadline with no staged or conditional timing"],"plain_english_summary":"**What this does:** This is an aviation safety rule requiring owners of Percival Vega Gull aircraft to upgrade the front seat seatbelts to proper safety harnesses.\n\n**Who it affects:** Anyone who owns or operates a Percival Vega Gull series aeroplane (a British-designed light aircraft from the 1930s-40s).\n\n**What must be done:** Install safety harnesses in the front seats following a design scheme approved by the Secretary (the government official responsible for aviation safety at the time). Guidelines for the installation design are available in Airworthiness Advisory Circular No. 62 from March 1972.\n\n**By when:** The work had to be completed before 1 December 1973.\n\n**Why it matters:** This improves pilot and passenger safety by ensuring proper upper body restraint during turbulence or accidents, rather than just a lap belt."}},"importantCases":[],"_links":{"self":"/api/acts/ad-gull-3-front-seat-restraint-installations-modification","history":"/api/acts/ad-gull-3-front-seat-restraint-installations-modification/history","analysis":"/api/acts/ad-gull-3-front-seat-restraint-installations-modification/analysis","conflicts":"/api/acts/ad-gull-3-front-seat-restraint-installations-modification/conflicts","importantCases":"/api/acts/ad-gull-3-front-seat-restraint-installations-modification/important-cases","documents":"/api/acts/ad-gull-3-front-seat-restraint-installations-modification/documents"}}