{"id":"F2006B09098","name":"AD/DHC-6/11 - Flap Elevator Trim Cables - Modification","slug":"ad-dhc-6-11-flap-elevator-trim-cables-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115651,"registerId":"commonwealth-F2006B09098-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/DHC-6/11 - Flap Elevator Trim Cables - 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-6 (Twin Otter) Series Aeroplanes\n\n \n\nAD/DHC-6/11 Flap Elevator Trim Cables - Modification 2/68\n\nApplicability: All models with S/Nos. 1 to 95.\n\n \n\nDocument: De Havilland of Canada Mod. Bulletin No. 6/1127. Compliance: Within 300 hours time in service after 21 March 1968.\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2102},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This appears to be the original 1968 directive (indicated by '2/68' in the identifier). The scope remains precisely limited to the specified aircraft serial numbers and the specific cable modification originally mandated, with no evidence of expansion beyond this original technical safety requirement."},"complexity_factors":["Single compliance requirement (one specific modification)","Narrow applicability limited to specific serial number range (S/Nos. 1-95)","Simple time-based compliance trigger (300 hours after fixed date)","No exceptions, exemptions, or conditional logic","References only one external technical document"],"plain_english_summary":"Owners/operators of DHC‑6 Twin Otter aircraft (serial numbers 1–95) must, as a legal requirement, modify the flap elevator trim cables per De Havilland of Canada Modification Bulletin No. 6/1127. The work must be completed within 300 flight hours in service measured from 21 March 1968. Compliance is mandatory for continued airworthiness and legal operation in Australia."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dhc-6-11-flap-elevator-trim-cables-modification","history":"/api/acts/ad-dhc-6-11-flap-elevator-trim-cables-modification/history","analysis":"/api/acts/ad-dhc-6-11-flap-elevator-trim-cables-modification/analysis","conflicts":"/api/acts/ad-dhc-6-11-flap-elevator-trim-cables-modification/conflicts","importantCases":"/api/acts/ad-dhc-6-11-flap-elevator-trim-cables-modification/important-cases","documents":"/api/acts/ad-dhc-6-11-flap-elevator-trim-cables-modification/documents"}}