{"id":"F2006B05042","name":"AD/CESSNA 180/28 Amdt 1 - Aileron Mass Balance Weight Attachment Rivets","slug":"ad-cessna-180-28-amdt-1-aileron-mass-balance-weight-attachment-rivets","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44952,"registerId":"commonwealth-F2006B05042-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 180/28 Amdt 1 - Aileron Mass Balance Weight Attachment Rivets","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)  Cessna 180, 182 and Wren 460 Series Aeroplanes\n\n \n\nAD/CESSNA 180/28\n\nAmdt 1\n\nApplicability: All models.\n\n\nAileron Mass Balance Weight Attachment Rivets\n\n\n9/72\n\n \n\nRequirement: Inspect the rivets attaching the lower aileron skin to the balance weight for corrosion.\n\nWhere corrosion is suspected under the rivet heads attempts should be made to remove the rivet heads by a light sharp sideways blow with a screwdriver. All damaged or corroded rivets must be replaced.\n\n \n\nCompliance: Within 100 hours time in service after 29 September 1972 and thereafter 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","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1332},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This amendment maintains the original 1972 scope regarding rivet inspection requirements for the specified aircraft models. No expansion of applicability or substantive additional requirements is evident."},"complexity_factors":["Single, specific mechanical inspection requirement","No defined terms or interpretation section","No cross-references to other legislation","Simple binary condition (corroded vs not corroded)","Clear, fixed compliance interval (100 hours time in service)"],"plain_english_summary":"This directive mandates safety inspections for specific light aircraft models (Cessna 180, 182, and Wren 460 series). **What it requires:** Aircraft owners must regularly inspect the rivets attaching the balance weights to the ailerons (the hinged control surfaces on the wings). Mechanics must check for corrosion under the rivet heads—if corrosion is suspected, they must remove the rivet heads with a sharp sideways blow from a screwdriver and replace any damaged or corroded rivets. **Who it affects:** Owners and operators of these specific aircraft types. **Why it matters:** Corroded rivets could cause the aileron mass balance weights to detach during flight, potentially causing dangerous vibrations or loss of control. **Compliance:** The first inspection must occur within 100 flight hours after 29 September 1972, then repeated every 100 flight hours of operation."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-180-28-amdt-1-aileron-mass-balance-weight-attachment-rivets","history":"/api/acts/ad-cessna-180-28-amdt-1-aileron-mass-balance-weight-attachment-rivets/history","analysis":"/api/acts/ad-cessna-180-28-amdt-1-aileron-mass-balance-weight-attachment-rivets/analysis","conflicts":"/api/acts/ad-cessna-180-28-amdt-1-aileron-mass-balance-weight-attachment-rivets/conflicts","importantCases":"/api/acts/ad-cessna-180-28-amdt-1-aileron-mass-balance-weight-attachment-rivets/important-cases","documents":"/api/acts/ad-cessna-180-28-amdt-1-aileron-mass-balance-weight-attachment-rivets/documents"}}