{"id":"F2006B06843","name":"AD/SD3-30/42 - Electrical Wiring and Hydraulic Pipelines","slug":"ad-sd3-30-42-electrical-wiring-and-hydraulic-pipelines","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":114709,"registerId":"commonwealth-F2006B06843-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 SD3-30 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/SD3-30/42 Electrical Wiring and Hydra","sectionType":"part","heading":"AD/SD3-30/42 Electrical Wiring and Hydraulic Pipelines 7/2001","content":"# AD/SD3-30/42 Electrical Wiring and Hydraulic Pipelines 7/2001\n\nApplicability: All SD3-30 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) SD330-24-29 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 SD330-24-29.\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":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original narrow scope — addressing a specific unsafe condition on a single aircraft type. ADs are inherently limited-purpose instruments by design, and this one follows the standard format: identify unsafe condition, prescribe corrective action, set compliance time. There is no evidence of scope creep or expansion beyond the original fire-prevention safety objective."},"complexity_factors":["Single aircraft type applicability with no exceptions or conditional categories","Only 2 requirements with clear sequential logic (Requirement 2 only triggers if Requirement 1 is insufficient)","No defined terms section — all technical terms reference external manufacturer documentation (Service Bulletin SD330-24-29)","Simple compliance structure with two clear deadlines and no nested conditions","Background section provides straightforward safety rationale without regulatory cross-references","Total length is approximately 250 words of operative text"],"plain_english_summary":"This mandatory CASA Airworthiness Directive requires owners/operators of Short SD3‑30 turboprops to inspect and correct a hazardous wiring-to-hydraulic routing near the 7P panel. It addresses chafing that can breach insulation and ignite pressurised hydraulic fluid, risking in‑flight fire. Inspections, rerouting/retention and protective sleeving (and pipeline replacement if needed) must be done promptly at the next B Check or within 90 days."},"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"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD implements the corrective actions set out in Bombardier SB SD330-24-29 for all SD3-30 aeroplanes to ensure adequate clearance between wiring and hydraulic pipelines. It does not expand applicability beyond SD3-30 aeroplanes nor add requirements outside inspection, re-routing, support installation, and pipeline replacement where clearance cannot be achieved (Applicability; Requirement; Compliance)."},"complexity_factors":["Applicability to all SD3-30 aeroplanes creates a fleet-wide, uniform compliance obligation (Applicability).","Technical work requires hands-on maintenance actions (inspection, re-routing, clip/sleeve installation, possible pipeline replacement) and access to the aircraft 7P panel (Requirement 1–2).","Compliance timing imposes scheduling constraints: Requirement 1 at the next 'B' Check or within 90 days, Requirement 2 before further flight if necessary (Compliance).","Safety-critical nature: failure to achieve clearance mandates pipeline replacement before flight, potentially grounding aircraft until completed (Requirement 2; Compliance).","Procedural reliance on an external manufacturer Service Bulletin for methods and standards (SB SD330-24-29); the AD does not restate technical tolerances, so implementers must obtain and follow the SB (Requirement; Note).","Regulatory provenance: issued under CAR 1998 subregulation 39.1(1) by a CASA delegate, so enforcement and interpretation follow the AD/Car framework (header).","CAA(UK) classified the Service Bulletin as mandatory, which may influence expectations for conformity and acceptable methods (Note).","Potential logistic and cost impacts from parts procurement and maintenance labour, and disruption to maintenance schedules (Requirement; Compliance)."],"plain_english_summary":"This Airworthiness Directive requires all Short SD3-30 aeroplanes to have the electrical wiring harnesses and the hydraulic pipelines serving the 7P panel inspected and, if needed, re-routed or fitted with additional clips/sleeving, following Bombardier Service Bulletin SD330-24-29. If adequate clearance cannot be achieved, the hydraulic pipeline must be replaced before further flight. CASA states the measure aims to reduce fouling/chafing and the risk of in-flight fire; operators must schedule and pay for the mandated maintenance."}},"importantCases":[],"_links":{"self":"/api/acts/ad-sd3-30-42-electrical-wiring-and-hydraulic-pipelines","history":"/api/acts/ad-sd3-30-42-electrical-wiring-and-hydraulic-pipelines/history","analysis":"/api/acts/ad-sd3-30-42-electrical-wiring-and-hydraulic-pipelines/analysis","conflicts":"/api/acts/ad-sd3-30-42-electrical-wiring-and-hydraulic-pipelines/conflicts","importantCases":"/api/acts/ad-sd3-30-42-electrical-wiring-and-hydraulic-pipelines/important-cases","documents":"/api/acts/ad-sd3-30-42-electrical-wiring-and-hydraulic-pipelines/documents"}}