{"id":"F2006B07160","name":"AD/SWSA226/13 - Aileron Tab - Inspection and Modification","slug":"ad-swsa226-13-aileron-tab-inspection-and-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":49034,"registerId":"commonwealth-F2006B07160-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/SWSA226/13 - Aileron Tab - Inspection and 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/SWSA226/13 Aileron Tab - Inspection and Modification 12/73\n\nApplicability: All model SA226TC with S/Nos. TC-201 to TC-207. All model SA226T with S/Nos.\n\nT-201 to T-238 and All Model SA226AT with S/Nos. AT-001 to AT-009.\n\n \n\nDocument: Swearingen SB 27-10-3046.\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\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2430},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow technical scope addressing a specific airworthiness concern (aileron tab integrity) on specific Metroliner aircraft models. It has not expanded beyond its initial safety purpose."},"complexity_factors":["Single, unambiguous compliance obligation","Extremely narrow applicability (only 55 specific aircraft identified by serial number)","No defined terms or interpretation section","No conditional exceptions, exemptions, or nested logic","Brief directive with straightforward command structure"],"plain_english_summary":"**What it does**\nThis Airworthiness Directive requires owners of specific Fairchild Swearingen aircraft to inspect and modify the **aileron tab** — a small hinged surface on the back of the wing that helps control the plane's turning. The work must be carried out according to the manufacturer's Service Bulletin 27-10-3046.\n\n**Who it affects**\nThis applies only to specific aircraft identified by serial number:\n- **SA226TC** models with serial numbers TC-201 to TC-207\n- **SA226T** models with serial numbers T-201 to T-238  \n- **SA226AT** models with serial numbers AT-001 to AT-009\n\n**Compliance requirement**\nThe inspection and modification must be completed within 100 hours of flight time after 31 December 1973.\n\n**Why it matters**\nThe directive addresses potential safety defects in the aileron control system to prevent possible structural failure or loss of aircraft control during flight."}},"importantCases":[],"_links":{"self":"/api/acts/ad-swsa226-13-aileron-tab-inspection-and-modification","history":"/api/acts/ad-swsa226-13-aileron-tab-inspection-and-modification/history","analysis":"/api/acts/ad-swsa226-13-aileron-tab-inspection-and-modification/analysis","conflicts":"/api/acts/ad-swsa226-13-aileron-tab-inspection-and-modification/conflicts","importantCases":"/api/acts/ad-swsa226-13-aileron-tab-inspection-and-modification/important-cases","documents":"/api/acts/ad-swsa226-13-aileron-tab-inspection-and-modification/documents"}}