{"id":"F2006B09196","name":"AD/DHC-8/40 - Black Thermal Insulation Retrofit Kits","slug":"ad-dhc-8-40-black-thermal-insulation-retrofit-kits","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":53007,"registerId":"commonwealth-F2006B09196-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/DHC-8/40 - Black Thermal Insulation Retrofit Kits","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nBombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes\n\nAD/DHC-8/40 Black Thermal Insulation Retrofit Kits 7/95\n\nApplicability: DHC-8 aircraft, Models 102, 103, 106, 301, 311, and 314, with serial numbers 003 through 381; and, all DHC-8 retrofit kits listed in de Havilland Service Bulletin 8-21- 68.\n\nRequirement: Action in accordance with the technical requirements of Transport Canada AD CF- 94-25.\n\nCompliance: Unless already accomplished, as specified in the Requirement Document with a revised effective date of 22 June 1995.\n\nBackground: Black thermal insulation blankets installed during production must be removed in accordance with AD/DHC-8/34 and AD/DHC-8/38. However, the requirements of these Directives do not refer to black insulation blankets introduced through the installation of retrofit kits.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1630},"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow, technical scope. It specifically plugs a gap between factory-installed and retrofit-installed insulation without expanding to other aircraft types or unrelated systems."},"complexity_factors":["Incorporates external technical document by reference (Transport Canada AD CF-94-25) without reproducing the actual steps","Limited to specific aircraft models, serial number ranges (003-381), and specific retrofit kits","Depends on understanding two previous Airworthiness Directives (AD/DHC-8/34 and AD/DHC-8/38) for full context","Uses technical aviation terminology (Service Bulletins, retrofit kits, airworthiness directives)"],"plain_english_summary":"This rule requires owners of certain Bombardier Dash 8 (DHC‑8) aeroplanes to remove hazardous black thermal insulation identified in Transport Canada Airworthiness Directive CF‑94‑25 by the deadline in that AD (22 June 1995), unless already done. It targets aircraft and retrofit kits missed by earlier directives, closing a loophole to eliminate potentially fire‑ or contamination‑hazardous insulation added after manufacture."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dhc-8-40-black-thermal-insulation-retrofit-kits","history":"/api/acts/ad-dhc-8-40-black-thermal-insulation-retrofit-kits/history","analysis":"/api/acts/ad-dhc-8-40-black-thermal-insulation-retrofit-kits/analysis","conflicts":"/api/acts/ad-dhc-8-40-black-thermal-insulation-retrofit-kits/conflicts","importantCases":"/api/acts/ad-dhc-8-40-black-thermal-insulation-retrofit-kits/important-cases","documents":"/api/acts/ad-dhc-8-40-black-thermal-insulation-retrofit-kits/documents"}}