{"id":"F2006B07162","name":"AD/SWSA226/15 - Main Landing Gear Door Hinge Angles - Inspection and Replacement","slug":"ad-swsa226-15-main-landing-gear-door-hinge-angles-inspection-and-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":49041,"registerId":"commonwealth-F2006B07162-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/SWSA226/15 - Main Landing Gear Door Hinge Angles - Inspection and Replacement","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\n# AD/SWSA226/15 Main Landing Gear Door Hinge\n\nAngles - Inspection and Replacement\n\nApplicability: All model SA226TC with S/Nos. TC-201 to TC-207.\n\nAll model SA226T with S/Nos. T201 to T248.\n\nAll model SA226AT with S/Nos. AT-001 to AT-022.\n\n \n\nDocument: Swearingen SB 52-80-3041.\n\n# 12/73\n\n \n\nCompliance: 1. Inspect Main Landing Gear door hinge angles at each daily or overnight inspection until replaced.\n\n \n\n2. Replace within 300 hours time in service after 31 December 1973, or 1 April 1974 whichever occurs first.\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":1960},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive maintains its original narrow technical scope focused solely on main landing gear door hinge angles for specific Fairchild Swearingen aircraft models. It has not expanded beyond its initial airworthiness safety purpose."},"complexity_factors":["Narrow applicability limited to three specific aircraft models with defined serial number ranges","Simple two-step compliance (repeated inspections until replacement deadline)","No defined terms or interpretation sections","Single external reference to service bulletin for technical specifications"],"plain_english_summary":"This airworthiness directive mandates safety actions for specific Fairchild Swearingen SA226 aircraft models (TC, T, and AT variants with particular serial numbers).\n\n**What you must do:**\n- **Inspect**: Check the main landing gear door hinge angles during every daily or overnight aircraft inspection until the parts are replaced\n- **Replace**: Install new hinge angles within 300 hours of flight time after whichever date comes first: 31 December 1973 or 1 April 1974\n\nThis applies only to aircraft with specific serial numbers and references technical details in Swearingen Service Bulletin 52-80-3041."}},"importantCases":[],"_links":{"self":"/api/acts/ad-swsa226-15-main-landing-gear-door-hinge-angles-inspection-and-replacement","history":"/api/acts/ad-swsa226-15-main-landing-gear-door-hinge-angles-inspection-and-replacement/history","analysis":"/api/acts/ad-swsa226-15-main-landing-gear-door-hinge-angles-inspection-and-replacement/analysis","conflicts":"/api/acts/ad-swsa226-15-main-landing-gear-door-hinge-angles-inspection-and-replacement/conflicts","importantCases":"/api/acts/ad-swsa226-15-main-landing-gear-door-hinge-angles-inspection-and-replacement/important-cases","documents":"/api/acts/ad-swsa226-15-main-landing-gear-door-hinge-angles-inspection-and-replacement/documents"}}