{"id":"F2006B09287","name":"AD/DIAMOND/3 - Nose Wheel Leg","slug":"ad-diamond-3-nose-wheel-leg","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":53351,"registerId":"commonwealth-F2006B09287-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/DIAMOND/3 - Nose Wheel Leg","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)  Diamond (HOAC) Series Aeroplanes\n\n \n\nAD/DIAMOND/3 Nose Wheel Leg 7/98 DM\n\nApplicability: Model DV20 with serial numbers 20.005 through 20.160.\n\n \n\nRequirement: Check the nose wheel leg weld for cracks using the fluorescent penetrant method, in accordance with Diamond Aircraft Industries Service Bulletin 20-32.\n\n \n\nNote: Austrian AD No. 86 refers.\n\n \n\nCompliance: Unless the initial inspection is already accomplished, within 20 hours time in service after 6 May 1998; thereafter at intervals not to exceed 100 hours time in service, until a version ‘B’ nose wheel leg is installed.\n\n \n\nThis airworthiness directive becomes effective on 6 May 1998.\n\n \n\nBackground: The manufacturer has identified the possibility of cracks occurring in the weld of the nose wheel tappet.\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":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive retains a narrow, unchanged scope: it targets DV20 serials 20.005–20.160 and prescribes periodic inspections until a version 'B' nose wheel leg is fitted. The instrument does not expand applicability or alter the underlying requirement as stated in the text."},"complexity_factors":["Narrow applicability limited to DV20 serial numbers 20.005–20.160 (fleet-specific scope).","Specific inspection method required (fluorescent penetrant) that needs trained personnel and equipment.","Time-bound initial compliance (20 hours after 6 May 1998) plus recurring 100‑hour intervals impose ongoing scheduling and record-keeping.","Requirement persists only until a hardware modification (version 'B' nose wheel leg) is installed — dependency on parts availability and installation.","Procedure delegated to an external document (Diamond Service Bulletin 20‑32) for technical steps.","Cross-reference to a foreign AD (Austrian AD No. 86) adds an external provenance note to the safety concern."],"plain_english_summary":"Requires owners/operators of Diamond DV20 aircraft (serials 20.005–20.160) to inspect the nose-wheel leg weld for cracks using fluorescent penetrant per Diamond Service Bulletin 20‑32. The first inspection is due within 20 hours time-in-service after 6 May 1998 (unless already done) and then every 100 hours until a version 'B' nose wheel leg is fitted.\n\nOperators pay for inspections and any repairs, must schedule recurring maintenance, and follow the manufacturer’s inspection procedure."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific mechanical defect in a specific aircraft model. It has not expanded beyond its original purpose of ensuring nose wheel leg integrity."},"complexity_factors":["Single, specific applicability (one aircraft model, defined serial number range)","One clear technical requirement referencing an external standard (Service Bulletin 20-32)","Simple compliance timeline with two conditions (initial + recurring)","Single termination condition (installation of version 'B' part)","No defined terms section, no cross-references to other legislation beyond a note about an Austrian AD","Total length: approximately 150 words of substantive content"],"plain_english_summary":"This CASA Airworthiness Directive legally requires owners/operators of Diamond DV20 aeroplanes (S/N 20.005–20.160) to inspect the nose wheel leg for cracks using a fluorescent penetrant test per Manufacturer Service Bulletin 20‑32. \n\nInspections must be done within 20 flight hours after 6 May 1998 (if not already done) and repeated every 100 flight hours until a modified \"version B\" nose wheel leg is fitted. It prevents nose‑gear failure from weld cracking."}},"importantCases":[],"_links":{"self":"/api/acts/ad-diamond-3-nose-wheel-leg","history":"/api/acts/ad-diamond-3-nose-wheel-leg/history","analysis":"/api/acts/ad-diamond-3-nose-wheel-leg/analysis","conflicts":"/api/acts/ad-diamond-3-nose-wheel-leg/conflicts","importantCases":"/api/acts/ad-diamond-3-nose-wheel-leg/important-cases","documents":"/api/acts/ad-diamond-3-nose-wheel-leg/documents"}}