{"id":"F2006B06905","name":"AD/SD3-60/59 - Electrical Wiring and Hydraulic Pipelines","slug":"ad-sd3-60-59-electrical-wiring-and-hydraulic-pipelines","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":114785,"registerId":"commonwealth-F2006B06905-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)\n\n![](image.001.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\nShort SD3-60 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/SD3-60/59 Electrical Wiring and Hydra","sectionType":"part","heading":"AD/SD3-60/59 Electrical Wiring and Hydraulic Pipelines 7/2001","content":"# AD/SD3-60/59 Electrical Wiring and Hydraulic Pipelines 7/2001\n\nApplicability: All SD3-60 aeroplanes.\n\nRequirement: 1. Inspect electrical wiring harnesses and the hydraulic pipelines servicing the 7P panel for fouling and, if necessary, re-route the wiring harnesses, install additionally supporting clips and sleeving in accordance with Bombardier Aerospace, Short Brothers PLC Service Bulletin (SB) SD360-24-25 dated 30 April 2001.\n\n2. If adequate clearance between the harnesses and the main pressure hydraulic pipeline cannot be achieved during the Requirement 1 re-routing of the electrical wiring harnesses, replace the pipeline with new rerouted pipeline in accordance with SB SD360-24-25.\n\nNote: This Service Bulletin has been classified as mandatory by the CAA(UK).\n\nCompliance: For Requirement 1 – At the next ‘B’ Check, but no later than 90 days after the effective date of this Directive.\n\nFor Requirement 2 – Before further flight, after completion of Requirement 1 This Airworthiness Directive becomes effective on 12 July 2001.\n\nBackground: This Directive is intended to ensure that adequate clearance exists between electrical wiring and pipelines containing combustible fluids. These measures are designed to reduce the likelihood of fouling and/or chaffing, with the resultant risk of an in-flight fire.\n\n![Signature of Eugene Paul Holzapfel Delegate of the Civil Aviation Safety Authority](image.002.png)  \n\nEugene Paul Holzapfel\n\nDelegate of the Civil Aviation Safety Authority 28 May 2001\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 13 June 2001.","sortOrder":1}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope: addressing a specific unsafe condition (electrical/hydraulic interference) in a specific aircraft type (SD3-60). It has not expanded beyond this technical safety fix."},"complexity_factors":["Very short document (under 400 words)","Only 2 substantive requirements with clear conditional logic (Requirement 2 only applies if Requirement 1 fails)","Single defined term: 'B' Check (standard aviation maintenance term, explained by context)","No cross-references to other legislation beyond the enabling regulation (CAR 1998 subreg 39.1(1))","Clear, linear structure: Applicability → Requirement → Compliance → Background","Single external reference to a technical standard (Service Bulletin SD360-24-25) with full citation"],"plain_english_summary":"This Airworthiness Directive mandates Short SD3-60 operators inspect and remedy wiring near the 7P panel that may chafe against a hydraulic pipe, creating a spark-and-fluid fire risk. Operators must inspect, re-route and secure the wiring with clips/sleeves per the Bombardier/Short Brothers service bulletin, and only replace the pipe if re-routing can’t keep wiring clear. Actions are due at the next “B” check or within 90 days; the UK required this fix and Australia followed to match safety standards."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The Directive's measures align with its stated safety purpose—ensuring clearance between electrical wiring and combustible-fluid pipelines—and are confined to SD3-60 aeroplanes and the 7P panel. It implements corrective action prescribed in Bombardier SB SD360-24-25 without expanding subject aircraft, affected systems, or imposing novel regulatory powers beyond requiring compliance and timing (Applicability, Requirement, Compliance)."},"complexity_factors":["Limited technical scope: specific to SD3-60 aeroplanes and the 7P panel (Applicability, Requirement).","Dependence on an external technical document: actions must follow Bombardier SB SD360-24-25 (Requirement 1–2).","Binary compliance timing: inspection at next ‘B’ Check or within 90 days; replacement before further flight (Compliance).","Operational disruption risk: pipeline replacement or re-routing may ground the aircraft until completed (Requirement 2; Compliance).","Judgement required on ‘adequate clearance’: may require engineering assessment and discretionary routing decisions (Requirement 1–2).","Mandatory classification referenced from another regulator increases enforcement expectations (Note: classified as mandatory by CAA(UK))."],"plain_english_summary":"This Airworthiness Directive requires operators of Short SD3-60 aeroplanes to inspect wiring harnesses and the hydraulic pipelines around the 7P panel, re‑route wiring and add supports/sleeving per Bombardier Service Bulletin SD360‑24‑25, and—if adequate clearance cannot be achieved—replace and reroute the main pressure hydraulic pipeline. Inspections must occur at the next ‘B’ Check or within 90 days; any pipeline replacement must be completed before further flight. Operators bear the cost of parts, labour and scheduling; CASA issued the directive."}},"importantCases":[],"_links":{"self":"/api/acts/ad-sd3-60-59-electrical-wiring-and-hydraulic-pipelines","history":"/api/acts/ad-sd3-60-59-electrical-wiring-and-hydraulic-pipelines/history","analysis":"/api/acts/ad-sd3-60-59-electrical-wiring-and-hydraulic-pipelines/analysis","conflicts":"/api/acts/ad-sd3-60-59-electrical-wiring-and-hydraulic-pipelines/conflicts","importantCases":"/api/acts/ad-sd3-60-59-electrical-wiring-and-hydraulic-pipelines/important-cases","documents":"/api/acts/ad-sd3-60-59-electrical-wiring-and-hydraulic-pipelines/documents"}}