{"id":"F2017L01382","name":"AD/DHC-8/40 Amdt 1 - Black Thermal Insulation Retrofit Kits","slug":"ad-dhc-8-40-amdt-1-black-thermal-insulation-retrofit-kits","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":144199,"registerId":"commonwealth-F2017L01382-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Bombardier DHC-8 Series Aeroplanes","sectionType":"part","heading":"Bombardier DHC-8 Series Aeroplanes","content":"# Bombardier DHC-8 Series Aeroplanes\n\n| AD/DHC-8/40 Amdt 1 | Black Thermal Insulation Retrofit Kits | 22/2017 |\n| ------------------ | -------------------------------------- | ------- |\n\n| Applicability: | Bombardier DHC-8 aircraft, Models 102, 103, 106, 301, 311, 314 and 315, with serial numbers 003 to 381; and, all Bombardier DHC-8 aircraft with DHC-8 retrofit kits listed in Bombardier Service Bulletin 8‑21‑ 68 as in force from time to time.Note 1: The words “as in force from time to time” refers to the most recent version of the SB.                                                                                                                                |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n| Requirement:   | Action in accordance with the technical requirements of Transport Canada AD CF‑94‑25R1, as in force from time to time.                                                                                                                                                                                                                                                                                                                                                         |\n| Compliance:    | Within 30 days after the commencement date of this AD, unless previously accomplished.Note 2: Previous compliance with the requirement in AD/DHC-8/40 constitutes compliance with the requirement in this AD.                                                                                                                                                                                                                                                                  |\n|                | This AD commences on 3 November 2017.                                                                                                                                                                                                                                                                                                                                                                                                                                          |\n| Background:    | Black thermal insulation blankets installed during production must be removed in accordance with AD/DHC-8/34 Amdt 2 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.Amendment 1 of this AD is issued to reference the latest revision of the Canadian AD and to add DHC-8 model 315 aircraft to the applicability section to align with the revised Canadian AD. |\n\n![](image.001.png)\n\nBen Wilson  \nDelegate of the Civil Aviation Safety Authority\n\n19 October 2017","sortOrder":0},{"sectionNumber":"AD/DHC-8/40 Amdt 1","sectionType":"part","heading":"AD/DHC-8/40 Amdt 1","content":"## AD/DHC-8/40 Amdt 1","sortOrder":1},{"sectionNumber":"Black Thermal Insulation Retrofit Kits","sectionType":"part","heading":"Black Thermal Insulation Retrofit Kits","content":"## Black Thermal Insulation Retrofit Kits","sortOrder":2},{"sectionNumber":"22/2017","sectionType":"part","heading":"22/2017","content":"## 22/2017","sortOrder":3}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":true,"description":"Amendment 1 expands scope by adding Model 315 to the applicability and explicitly covering black thermal insulation introduced via retrofit kits listed in Bombardier SB 8‑21‑68, and by updating the reference to the latest Transport Canada AD (CF‑94‑25R1). This aligns the AD’s coverage with the revised Canadian AD and extends the set of affected aircraft."},"complexity_factors":["Cross-reference to an external foreign airworthiness directive (Transport Canada AD CF‑94‑25R1) — Requirement","Dependence on a manufacturer service bulletin list that is effective “as in force from time to time” (Bombardier SB 8‑21‑68) — Applicability","Multiple affected aircraft models and a serial‑number range (Models 102,103,106,301,311,314,315; SN 003–381) — Applicability","Short compliance window (30 days from commencement) creating scheduling/compliance pressure — Compliance","Note recognising prior compliance with AD/DHC‑8/40 reduces duplicate obligations — Compliance note","Amendment updates (references latest Canadian AD and adds Model 315) requiring alignment with evolving external documents — Background"],"plain_english_summary":"This AD requires operators of certain Bombardier DHC‑8 aircraft to address black thermal insulation introduced by retrofit kits by following the technical steps in Transport Canada AD CF‑94‑25R1 (as updated). It applies to Models 102, 103, 106, 301, 311, 314 and 315 (serials 003–381) and aircraft fitted with retrofit kits listed in Bombardier Service Bulletin 8‑21‑68; compliance is required within 30 days of the AD’s commencement (3 November 2017). Owners/operators pay for and carry out the work; the regulator enforces the deadline and conformity to the Canadian AD."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":true,"description":"The original AD/DHC-8/40 addressed black thermal insulation in retrofit kits. This amendment expands the scope by adding DHC-8 model 315 aircraft to the applicability section, broadening the range of affected aircraft beyond the original coverage."},"complexity_factors":["Short, single-purpose directive (approximately 250 words)","Only 3 operative requirements: applicability, technical compliance reference, and deadline","Minimal defined terms (only standard aviation abbreviations like 'AD' and 'SB')","Simple conditional logic: compliance required unless already accomplished","Single cross-reference to Canadian aviation regulation (Transport Canada AD CF-94-25R1)","No nested exceptions or complex procedural pathways"],"plain_english_summary":"This mandatory CASA Airworthiness Directive requires owners/operators of certain Bombardier DHC‑8 (Dash 8) aircraft to remove black thermal insulation blankets installed via retrofit kits because they pose a safety hazard. It adopts Transport Canada’s corrective instructions and must be complied with within 30 days of 3 November 2017. This amendment updates the Canadian reference and adds the Model 315 to the affected fleet."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dhc-8-40-amdt-1-black-thermal-insulation-retrofit-kits","history":"/api/acts/ad-dhc-8-40-amdt-1-black-thermal-insulation-retrofit-kits/history","analysis":"/api/acts/ad-dhc-8-40-amdt-1-black-thermal-insulation-retrofit-kits/analysis","conflicts":"/api/acts/ad-dhc-8-40-amdt-1-black-thermal-insulation-retrofit-kits/conflicts","importantCases":"/api/acts/ad-dhc-8-40-amdt-1-black-thermal-insulation-retrofit-kits/important-cases","documents":"/api/acts/ad-dhc-8-40-amdt-1-black-thermal-insulation-retrofit-kits/documents"}}