{"id":"F2006B02052","name":"AD/AA-5/2 - Front Seat - Modification","slug":"ad-aa-5-2-front-seat-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41274,"registerId":"commonwealth-F2006B02052-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/AA-5/2 - Front Seat - Modification","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-description: CASA Airworthiness Directive\nmeta-generator: Aspose.Words for .NET 22.10.0\nmeta-keywords: Issue NK,Aircraft below 5700 kg,Gulfstream (Grumman American/ American Aviation) AA-5 Series Aeroplanes,Front Seat - Modification,2\ntitle: Airworthiness Directive - AD/AA-5/2 - Front Seat - Modification\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)  Gulfstream (Grumman American/ American Aviation) AA-5 Series Aeroplanes\n\n \n\nAD/AA-5/2 Front Seat - Modification NK\n\nApplicability: All models with S/Nos. 0001 to 0089. Document:  American Aviation SB No. 129.\n\nCompliance: Before issue of a Certificate of Airworthiness.\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":1689},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This directive maintains a narrow, technical scope focused solely on front seat modifications for specific early-production AA-5 aircraft. No evidence of scope creep beyond the original airworthiness safety purpose."},"complexity_factors":["Extremely brief text containing only essential information","Single, unambiguous compliance requirement with no conditions or exceptions","No defined terms or interpretation sections","Only one external reference (to a service bulletin)","No nested logic, cross-references to other legislation, or temporal limitations"],"plain_english_summary":"**What this is:** An Airworthiness Directive (mandatory safety instruction issued by the aviation regulator) requiring specific modifications to aircraft seats.\n\n**Who it affects:** Owners and operators of early-model Gulfstream (Grumman American/American Aviation) AA-5 series aeroplanes with serial numbers 0001 to 0089.\n\n**What you must do:** You must modify the front seats of your aircraft according to the technical specifications in **American Aviation Service Bulletin No. 129**. This must be completed **before** the aircraft can be issued a Certificate of Airworthiness (official approval that the plane is safe to fly).\n\n**Why it matters:** This directive addresses a specific safety defect or weakness in the original front seat design of these early production aircraft. Compliance ensures the seats meet current safety standards and won't fail during flight operations."}},"importantCases":[],"_links":{"self":"/api/acts/ad-aa-5-2-front-seat-modification","history":"/api/acts/ad-aa-5-2-front-seat-modification/history","analysis":"/api/acts/ad-aa-5-2-front-seat-modification/analysis","conflicts":"/api/acts/ad-aa-5-2-front-seat-modification/conflicts","importantCases":"/api/acts/ad-aa-5-2-front-seat-modification/important-cases","documents":"/api/acts/ad-aa-5-2-front-seat-modification/documents"}}