{"id":"F2006B09180","name":"AD/DHC-8/25 - Power Cable Connectors","slug":"ad-dhc-8-25-power-cable-connectors","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":52945,"registerId":"commonwealth-F2006B09180-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/DHC-8/25 - Power Cable Connectors","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)  Bombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes\n\n \n\nAD/DHC-8/25 Power Cable Connectors  1/93 TX\n\n \n\nApplicability: All DHC-8 100 & 300 Series without modification 8/1970 incorporated.\n\n \n\nRequirement: Action in accordance with de Havilland Inc Service Bulletin No A8-24-44 dated 23 October 1992, or later approved versions.\n\n \n\nNote: Canadian Emergency AD CF-92-20 refers.\n\n \n\nCompliance: Prior to 9 January 1993.\n\n \n\nBackground: This action is required because electrical DC feeder cables are loosening and corroding. The cause is attributed to the use of aluminium washers.\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":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive addressing a specific mechanical defect. It has not expanded beyond its original purpose of mandating a particular electrical system repair."},"complexity_factors":["Single, specific technical requirement referencing an external service bulletin","Narrow applicability (two specific aircraft series, excluding already-modified aircraft)","No defined terms section","No conditional logic or nested exceptions","Straightforward compliance deadline with no alternative methods stated","Total length is approximately 150 words of substantive content"],"plain_english_summary":"This is an **Airworthiness Directive** (AD) — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) for specific aircraft.\n\n**What it does:**\nOrders owners and operators of certain **Bombardier DHC-8 \"Dash 8\" aircraft** (specifically the 100 and 300 series models) to inspect and fix a dangerous electrical problem. The issue involves **DC power cables** that are coming loose and corroding because of faulty aluminium washers used in the connectors.\n\n**Who must comply:**\nAnyone operating DHC-8 100 or 300 series aircraft that **haven't already been modified** with a specific factory fix (modification 8/1970).\n\n**What they must do:**\nFollow the repair instructions in **de Havilland Service Bulletin A8-24-44** (dated 23 October 1992) or any later approved version of those instructions.\n\n**Why it matters:**\nLoose, corroding electrical cables in an aircraft's power system can cause electrical failures — potentially leading to loss of critical systems or even fire. This directive forces operators to fix the problem before a specific deadline to keep their aircraft airworthy and safe to fly.\n\n**Deadline:**\nThe work had to be completed **before 9 January 1993**."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The document states its applicability and required action explicitly: it applies only to DHC-8 100 & 300 series aeroplanes without modification 8/1970 incorporated and requires compliance with Service Bulletin A8-24-44 (or later approved versions) by 9 January 1993. The instrument itself does not indicate any alteration or broadening of that scope from an earlier statement; no text in this source evidences a change from the original scope or intent."},"complexity_factors":["Narrow applicability: limited to DHC-8 Series 100 & 300 aircraft without modification 8/1970 incorporated (Applicability).","Cross-reference to an external technical document (de Havilland Service Bulletin A8-24-44) for the substantive work required (Requirement).","Fixed compliance deadline that creates scheduling pressure on operators (Compliance).","Allowance for “later approved versions” of the service bulletin introduces limited regulatory discretion about acceptable technical revisions (Requirement).","Technical nature of the corrective action requires certified maintenance organisations and parts, adding practical complexity despite simple legal language (Requirement; Background).","Reference to a foreign (Canadian) emergency AD implies coordination across jurisdictions which can complicate parts/approval paths (Note)."],"plain_english_summary":"This airworthiness directive requires operators of Bombardier (de Havilland/DHC‑8) Series 100 and 300 aeroplanes that haven’t incorporated modification 8/1970 to carry out the maintenance specified in de Havilland Service Bulletin A8‑24‑44 (or a later approved version) by 9 January 1993. \n\nIt responds to reported loosening and corrosion of DC feeder cable connections attributed to aluminium washers, affecting aircraft owners/operators and maintenance organisations and imposing parts, labour and aircraft‑downtime costs to correct the defect."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dhc-8-25-power-cable-connectors","history":"/api/acts/ad-dhc-8-25-power-cable-connectors/history","analysis":"/api/acts/ad-dhc-8-25-power-cable-connectors/analysis","conflicts":"/api/acts/ad-dhc-8-25-power-cable-connectors/conflicts","importantCases":"/api/acts/ad-dhc-8-25-power-cable-connectors/important-cases","documents":"/api/acts/ad-dhc-8-25-power-cable-connectors/documents"}}