{"id":"F2006B06628","name":"AD/ROBIN/3 - Engine Mount - Inspection and Replacement","slug":"ad-robin-3-engine-mount-inspection-and-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48508,"registerId":"commonwealth-F2006B06628-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/ROBIN/3 - Engine Mount - Inspection and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)  Robin Aviation Series Aeroplanes\n\n \n\nAD/ROBIN/3 Engine Mount - Inspection and Replacement 1/82\n\nApplicability: All model/s DR400 with S/Nos. referenced in Avions Pierre Robin SB No. 89 or with S/Nos. referenced in subsequent issues or revisions of that SB.\n\n \n\nDocument: Avions Pierre Robin SB No. 89.\n\n \n\nCompliance: Inspect initially before further flight and thereafter at intervals not exceeding 100 hours time in service until replaced. Replace not later than next major inspection, or 1 July, 1982.\n\n \n\nBackground: The manufacturer has received reports of some cases of cracking in the engine mount.\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":1796},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope addressing a specific safety-critical defect (engine mount cracking) in defined Robin DR400 aircraft. It has not expanded to cover other airframes, components, or operational requirements beyond the original mechanical issue identified in 1982."},"complexity_factors":["Single-issue directive with narrow applicability (one aircraft model)","Only one external cross-reference to a technical standard (Service Bulletin No. 89)","Simple temporal logic: 'next major inspection OR 1 July 1982'","Clear three-phase compliance structure (initial/recurring/replacement)","No defined terms section or interpretation clauses"],"plain_english_summary":"This is a **safety order** (called an Airworthiness Directive) for owners of specific Robin DR400 aeroplanes. It addresses a manufacturing defect where **engine mounts can crack**, potentially causing the engine to separate from the aircraft.\n\n**Who it affects:**\nOnly Robin DR400 model aircraft with specific serial numbers listed in Avions Pierre Robin Service Bulletin No. 89.\n\n**What you must do:**\n- **Right now:** Inspect the engine mount for cracks before flying again\n- **Keep checking:** Repeat this inspection every 100 flight hours until you replace the part\n- **Final deadline:** Replace the engine mount completely by whichever comes first — your next major aircraft inspection or 1 July 1982\n\nThe directive points to the manufacturer's Service Bulletin No. 89 for the technical \"how-to\" instructions."}},"importantCases":[],"_links":{"self":"/api/acts/ad-robin-3-engine-mount-inspection-and-replacement","history":"/api/acts/ad-robin-3-engine-mount-inspection-and-replacement/history","analysis":"/api/acts/ad-robin-3-engine-mount-inspection-and-replacement/analysis","conflicts":"/api/acts/ad-robin-3-engine-mount-inspection-and-replacement/conflicts","importantCases":"/api/acts/ad-robin-3-engine-mount-inspection-and-replacement/important-cases","documents":"/api/acts/ad-robin-3-engine-mount-inspection-and-replacement/documents"}}