{"id":"F2006B09031","name":"AD/DHC-2/14 - Main Undercarriage Lower Forward Attachment - Modification","slug":"ad-dhc-2-14-main-undercarriage-lower-forward-attachment-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":52722,"registerId":"commonwealth-F2006B09031-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/DHC-2/14 - Main Undercarriage Lower Forward Attachment - 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)  DHC-2 (Beaver) Series Aeroplanes\n\n \n\nAD/DHC-2/14 Main Undercarriage Lower Forward\n\nAttachment - Modification\n\n\n5/67\n\n \n\nApplicability: All models.\n\n \n\nDocument: Hawker De Havilland TNS DHC-2 Aust. No. 5. Compliance:  Forthwith.\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":1418},"content_quality":"ok","complexity_score":1,"rejection_reason":"","scope_assessment":{"changed":false,"description":"The directive maintains its original narrow technical scope—mandating a specific safety modification to one component of one aircraft type. There is no evidence of scope creep or expansion beyond the original undercarriage attachment issue."},"complexity_factors":["Single operative requirement with no conditions or exceptions","No defined terms or interpretation section","Ultra-short format (less than 100 words of operative text)","No cross-references to other legislation beyond the enabling Part 39"],"plain_english_summary":"**What this does:** This is a mandatory safety order (called an **Airworthiness Directive**) that applies to all models of the DHC-2 Beaver aircraft—a type of small bush plane commonly used in Australia.\n\n**What it requires:** Owners and operators must immediately modify the **main undercarriage** (the main landing gear) at its **lower forward attachment point** (where the wheel strut connects to the airframe). The specific technical instructions for how to do this are contained in a separate document: *Hawker De Havilland TNS DHC-2 Aust. No. 5*.\n\n**When:** **Forthwith** means immediately—before the aircraft flies again.\n\n**Why it matters:** This prevents the landing gear from failing or detaching during takeoff or landing, which could cause a crash."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dhc-2-14-main-undercarriage-lower-forward-attachment-modification","history":"/api/acts/ad-dhc-2-14-main-undercarriage-lower-forward-attachment-modification/history","analysis":"/api/acts/ad-dhc-2-14-main-undercarriage-lower-forward-attachment-modification/analysis","conflicts":"/api/acts/ad-dhc-2-14-main-undercarriage-lower-forward-attachment-modification/conflicts","importantCases":"/api/acts/ad-dhc-2-14-main-undercarriage-lower-forward-attachment-modification/important-cases","documents":"/api/acts/ad-dhc-2-14-main-undercarriage-lower-forward-attachment-modification/documents"}}