{"id":"F2006B02187","name":"AD/AC-112/3 - Aileron Control System - Modification","slug":"ad-ac-112-3-aileron-control-system-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41417,"registerId":"commonwealth-F2006B02187-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/AC-112/3 - Aileron Control System - 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 10/1976,Aircraft below 5700 kg,Gulfstream (Rockwell) 112 Series Aeroplanes,Aileron Control System - Modification,3\ntitle: Airworthiness Directive - AD/AC-112/3 - Aileron Control System - 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 (Rockwell) 112 Series Aeroplanes\n\n \n\nAD/AC-112/3 Aileron Control System - Modification 10/76\n\nApplicability: All model 112 with S/Nos. 6 to 474. Document:  Rockwell International SB No. SB-112-41.\n\nCompliance: Within 100 hours’ time in service after 29 October 1976.\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":2234},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive retains its original narrow technical scope. It addresses a specific mechanical modification for a defined subset of Rockwell 112 aircraft without expanding to broader operational or certification requirements."},"complexity_factors":["Single, unambiguous compliance requirement","Narrow applicability limited to specific aircraft serial numbers (S/Nos. 6–474)","No conditional exceptions, nested logic, or contingent provisions","Minimal cross-referencing (only one external technical document)"],"plain_english_summary":"**What this is:** A safety directive (Airworthiness Directive) issued by CASA — Australia's aviation safety regulator — under the Civil Aviation Regulations.\n\n**What it requires:** Owners and operators of specific Gulfstream (Rockwell) 112 aircraft must modify the **aileron control system** (the wing controls that make the aircraft bank and turn). The work must be done exactly as specified in the manufacturer's **Rockwell Service Bulletin SB-112-41**.\n\n**Who is affected:** Anyone operating a Model 112 aircraft with serial numbers 6 through 474.\n\n**Deadline:** You must complete the modification within **100 hours of flight time** after 29 October 1976.\n\n**Why it matters:** This fixes a safety defect in the roll control system. Flying without this modification breaches aviation law and means the aircraft is not airworthy."}},"importantCases":[],"_links":{"self":"/api/acts/ad-ac-112-3-aileron-control-system-modification","history":"/api/acts/ad-ac-112-3-aileron-control-system-modification/history","analysis":"/api/acts/ad-ac-112-3-aileron-control-system-modification/analysis","conflicts":"/api/acts/ad-ac-112-3-aileron-control-system-modification/conflicts","importantCases":"/api/acts/ad-ac-112-3-aileron-control-system-modification/important-cases","documents":"/api/acts/ad-ac-112-3-aileron-control-system-modification/documents"}}