{"id":"F2006B04136","name":"AD/BEECH 65/4 - Flap Drive Assembly - Replacement","slug":"ad-beech-65-4-flap-drive-assembly-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43850,"registerId":"commonwealth-F2006B04136-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 65/4 - Flap Drive Assembly - 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)  Beechcraft 65 and 70 (Queen Air) Series Aeroplanes\n\n \n\nAD/BEECH 65/4 Flap Drive Assembly - Replacement 11/67\n\nApplicability: All models.\n\n \n\nRequirement: 1. Remove flap drive assemblies P/N 50-521214-1 and -2 or P/N HE631-1 and -2.\n\n \n\n2. Replace with flap drive assemblies: (a) P/N 50-380113-1 and -2; or\n\n(b) P/N HE631-1 and -2 modified to Hawker de Havilland Engineering Order B.154.\n\n \n\nCompliance: Before 31 March 1967.\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":1696},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive maintains its original narrow, technical scope addressing a specific airworthiness defect in flap drive assemblies on defined aircraft models. There is no evidence of mission creep or expansion into unrelated operational areas."},"complexity_factors":["Extremely short document (approximately 150 words)","Only 4 distinct part numbers specified","No cross-references to other legislation or regulations","Single unconditional requirement with no exceptions or nested conditions","Binary compliance path (replace with new OR modify existing)"],"plain_english_summary":"This safety order requires owners/operators of Beechcraft 65 and 70 (Queen Air) aircraft to remove specified faulty flap drive assemblies (part nos. 50-521214-1/2 or HE631-1/2) and install replacement parts (50-380113-1/2) or upgraded HE631 units per Hawker de Havilland Engineering Order B.154. It matters because failed flap drives can prevent proper landing configuration, creating a serious safety hazard. Compliance was required before 31 March 1967."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-65-4-flap-drive-assembly-replacement","history":"/api/acts/ad-beech-65-4-flap-drive-assembly-replacement/history","analysis":"/api/acts/ad-beech-65-4-flap-drive-assembly-replacement/analysis","conflicts":"/api/acts/ad-beech-65-4-flap-drive-assembly-replacement/conflicts","importantCases":"/api/acts/ad-beech-65-4-flap-drive-assembly-replacement/important-cases","documents":"/api/acts/ad-beech-65-4-flap-drive-assembly-replacement/documents"}}