{"id":"F2006B07161","name":"AD/SWSA226/14 - Aileron Control System - Modification","slug":"ad-swsa226-14-aileron-control-system-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":49038,"registerId":"commonwealth-F2006B07161-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/SWSA226/14 - Aileron Control System - 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)  Fairchild (Swearingen) SA226 and SA227 Series Aeroplanes\n\n \n\nAD/SWSA226/14 Aileron Control System - Modification 12/73\n\nApplicability: All model SA226TC with S/Nos. TC-205 to TC-207.\n\nAll model SA226T with S/Nos. T-228 to T-238.\n\nAll model SA226AT with S/Nos. AT-009 to AT-012.\n\n \n\nDocument: Swearingen SB 27-10-3044.\n\n \n\nCompliance: Within 100 hours time in service after 31 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\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1447},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow technical scope—mandating a specific safety modification to the aileron control systems of particular aircraft. There is no evidence of expansion beyond this original equipment safety purpose."},"complexity_factors":["Single operative requirement with no sub-conditions or exceptions","Limited applicability restricted to nine specific aircraft serial numbers across three models","No defined terms or interpretation section","Single external reference to technical standard (Service Bulletin)","Simple compliance calculation: fixed date plus flight hours"],"plain_english_summary":"**What it does:** This directive requires owners or operators of specific Fairchild Swearingen aircraft to modify the **aileron control system**—the mechanical components that allow the pilot to control the aircraft's roll (banking left or right).\n\n**Who it affects:** This applies only to three specific aircraft models with limited serial number ranges:\n- **SA226TC** (serial numbers TC-205 through TC-207)\n- **SA226T** (serial numbers T-228 through T-238)\n- **SA226AT** (serial numbers AT-009 through AT-012)\n\n**What must be done:** The aircraft must be modified exactly as described in **Swearingen Service Bulletin 27-10-3044** (a technical instruction manual from the manufacturer).\n\n**Deadline:** The work must be completed within **100 flight hours** after 31 December 1973.\n\n**Why it matters:** This prevents potential mechanical failures in the control system that could cause the pilot to lose control of the aircraft during flight."}},"importantCases":[],"_links":{"self":"/api/acts/ad-swsa226-14-aileron-control-system-modification","history":"/api/acts/ad-swsa226-14-aileron-control-system-modification/history","analysis":"/api/acts/ad-swsa226-14-aileron-control-system-modification/analysis","conflicts":"/api/acts/ad-swsa226-14-aileron-control-system-modification/conflicts","importantCases":"/api/acts/ad-swsa226-14-aileron-control-system-modification/important-cases","documents":"/api/acts/ad-swsa226-14-aileron-control-system-modification/documents"}}