{"id":"F2006B02072","name":"AD/AC/13 - Hydraulic and Engine Oil S/O Valve Circuit Breaker - Insulation","slug":"ad-ac-13-hydraulic-and-engine-oil-s-o-valve-circuit-breaker-insulation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41302,"registerId":"commonwealth-F2006B02072-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/AC/13 - Hydraulic and Engine Oil S/O Valve Circuit Breaker - Insulation","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-description: CASA Airworthiness Directive\nmeta-generator: Aspose.Words for .NET 22.10.0\nmeta-keywords: Issue NK,Aircraft below 5700 kg,Twin Commander (Gulfstream/Rockwell/ Aerocommander 500, 600 and 700) Series Aeroplanes,Hydraulic and Engine Oil S/O Valve Circuit Breaker - Insulation,13\ntitle: Airworthiness Directive - AD/AC/13 - Hydraulic and Engine Oil S/O Valve Circuit Breaker - Insulation\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)  Twin Commander (Gulfstream/Rockwell/ Aerocommander 500, 600 and 700) Series Aeroplanes\n\n \n\nAD/AC/13 Hydraulic and Engine Oil S/O Valve NK\n\nCircuit Breaker - Insulation\n\nApplicability: All models: S/Nos. 245 to 770. Document: Aero Commander SB No. 58. 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","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1984},"content_quality":"rejected","complexity_score":2,"rejection_reason":"The provided text is an incomplete fragment containing only header metadata (title, applicability, compliance date) but missing the actual 'Requirement' section that specifies the mandatory actions operators must take. The document ends with extensive whitespace/formatting artifacts, suggesting the substantive legislative content has been truncated or omitted.","scope_assessment":{"changed":false,"description":"Unable to assess scope changes as the document appears to be an incomplete fragment lacking substantive directive text."},"complexity_factors":["Incomplete fragment - missing the 'Requirement' section that specifies mandatory actions","Heavy reliance on external technical document (Service Bulletin No. 58) without excerpting its contents","Minimal visible conditional logic or exceptions due to truncated content"],"plain_english_summary":"This appears to be a fragment of a Civil Aviation Safety Authority (CASA) Airworthiness Directive (**AD/AC/13**) concerning electrical insulation for hydraulic and engine oil shut-off valve circuit breakers on **Twin Commander aircraft** (Gulfstream/Rockwell/Aero Commander 500, 600, and 700 series, serial numbers 245–770). The directive references an external **Aero Commander Service Bulletin No. 58** and mandates compliance **'forthwith'** (meaning immediately). However, the actual requirements—what specifically must be inspected, modified, or replaced—appear to be missing from the provided text."}},"importantCases":[],"_links":{"self":"/api/acts/ad-ac-13-hydraulic-and-engine-oil-s-o-valve-circuit-breaker-insulation","history":"/api/acts/ad-ac-13-hydraulic-and-engine-oil-s-o-valve-circuit-breaker-insulation/history","analysis":"/api/acts/ad-ac-13-hydraulic-and-engine-oil-s-o-valve-circuit-breaker-insulation/analysis","conflicts":"/api/acts/ad-ac-13-hydraulic-and-engine-oil-s-o-valve-circuit-breaker-insulation/conflicts","importantCases":"/api/acts/ad-ac-13-hydraulic-and-engine-oil-s-o-valve-circuit-breaker-insulation/important-cases","documents":"/api/acts/ad-ac-13-hydraulic-and-engine-oil-s-o-valve-circuit-breaker-insulation/documents"}}