{"id":"F2006B11226","name":"AD/M20/2 Amdt 1 - Nose Gear Legs - Crack Inspection","slug":"ad-m20-2-amdt-1-nose-gear-legs-crack-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56944,"registerId":"commonwealth-F2006B11226-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/M20/2 Amdt 1 - Nose Gear Legs - Crack Inspection","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)  Mooney M20 Series Aeroplanes\n\n \n\nAD/M20/2\n\nAmdt 1\n\n\nNose Gear Legs - Crack Inspection 10/85\n\n \n\nApplicability: All models M20-B and M20-C with S/Nos. 1701 to 1884. Document:  Mooney SB 20-87.\n\nCompliance: At intervals not exceeding 100 hours time in service.\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":1748},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is Amendment 1 to an existing Airworthiness Directive. The content maintains the original narrow safety scope of requiring periodic crack inspections on specific aircraft nose gear legs. No expansion of scope or additional aircraft models appear to have been added."},"complexity_factors":["Extremely narrow applicability limited to two specific aircraft models and a defined serial number range (1701-1884)","Single compliance obligation with no exceptions or conditional provisions","No defined terms or interpretation section within the instrument","Relies entirely on external technical document (Service Bulletin 20-87) for inspection methodology"],"plain_english_summary":"This directive is a mandatory safety notice issued by the Civil Aviation Safety Authority (CASA) for specific light aircraft.\n\n**Who it affects**\nOwners and operators of Mooney M20-B and M20-C model aeroplanes with serial numbers between 1701 and 1884.\n\n**What you must do**\nInspect the nose gear legs (the front wheel strut assembly) for cracks at intervals no greater than every 100 hours of \"time in service\" (flight time).\n\n**Why it matters**\nUnchecked cracks in landing gear can lead to catastrophic failure during landing or taxiing, potentially causing the nose wheel to collapse. This rule ensures potential structural damage is caught before it becomes dangerous.\n\n**Technical details**\nThe specific inspection procedure is found in Mooney Service Bulletin 20-87, which you must consult to perform the check correctly."}},"importantCases":[],"_links":{"self":"/api/acts/ad-m20-2-amdt-1-nose-gear-legs-crack-inspection","history":"/api/acts/ad-m20-2-amdt-1-nose-gear-legs-crack-inspection/history","analysis":"/api/acts/ad-m20-2-amdt-1-nose-gear-legs-crack-inspection/analysis","conflicts":"/api/acts/ad-m20-2-amdt-1-nose-gear-legs-crack-inspection/conflicts","importantCases":"/api/acts/ad-m20-2-amdt-1-nose-gear-legs-crack-inspection/important-cases","documents":"/api/acts/ad-m20-2-amdt-1-nose-gear-legs-crack-inspection/documents"}}