{"id":"F2006B10272","name":"AD/GENERAL/39 Amdt 3 - Generator System Warning Placard - Installation","slug":"ad-general-39-amdt-3-generator-system-warning-placard-installation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55951,"registerId":"commonwealth-F2006B10272-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.002.png)\n\n![](image.002.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/GENERAL/39 Amdt 2 and issues the following 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.","sortOrder":0},{"sectionNumber":"AD/GENERAL/39","sectionType":"part","heading":"AD/GENERAL/39","content":"# AD/GENERAL/39\n\nAmdt 3\n\n  \n\nGenerator System Warning Placard - Installation\n\n  \n9/2000","sortOrder":1},{"sectionNumber":"DM","sectionType":"part","heading":"DM","content":"# AD/GENERAL/39\n\nAmdt 3\n\n  \n\nGenerator System Warning Placard - Installation\n\n  \n9/2000\n\n# DM","sortOrder":2}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This appears to be a routine amendment (Amendment 3) to an existing Airworthiness Directive. The scope remains consistent with the original AD/GENERAL/39 — addressing generator system safety through placard installation. No evidence of scope creep beyond the original safety purpose."},"complexity_factors":["Short, single-purpose directive focused on one physical action (installing a placard)","Minimal cross-referencing — only references the enabling regulation (CAR 1998 subregulation 39.1(1))","Standard AD structure (applicability, requirement, compliance, background) but truncated in this extract","No nested definitions or conditional exceptions visible in this excerpt","Technical aviation terminology assumes some industry knowledge (e.g., 'generator system', 'airworthiness', 'CASA delegate')"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order for aircraft. Think of it like a recall notice for your car, but for planes.\n\n**What it does:**\nThis directive requires aircraft owners and operators to install a **warning placard** (a visible safety sign) on or near the aircraft's generator system. The placard warns about specific hazards or operating procedures related to the generator.\n\n**Who it affects:**\n- Aircraft owners and operators\n- Maintenance engineers who work on aircraft electrical systems\n- Anyone responsible for keeping aircraft airworthy (legally safe to fly)\n\n**Why it matters:**\nGenerator systems can pose serious safety risks if mishandled — electrical shocks, fires, or system failures that could affect flight safety. The placard ensures anyone working on or near the system sees critical safety information before something goes wrong.\n\n**Key details:**\n- This is **Amendment 3** — it replaces the previous version (Amendment 2)\n- Issued under the **Civil Aviation Regulations 1998** (specifically subregulation 39.1(1))\n- The directive number is **AD/GENERAL/39**\n- Originally dated **September 2000** (the \"9/2000\" reference)\n\n**The bottom line:** If you own or maintain an aircraft covered by this AD, you must install this warning placard by the compliance deadline specified in the full directive. Ignoring it means your aircraft isn't legally airworthy."},"flash_summary":{"complexity_score":6,"scope_assessment":{"changed":true,"description":"The instrument revokes AD/GENERAL/39 Amdt 2 and issues AD/GENERAL/39 Amdt 3 (Generator System Warning Placard - Installation), indicating a change in the active airworthiness direction. The supplied excerpt does not include the full text of the new requirement, applicability or compliance sections, so the precise substantive scope change (what aircraft are affected, what exact placard wording/placement is required, and the compliance deadline) cannot be determined from the material provided."},"complexity_factors":["Cross-reference to external regulation: issued under subregulation 39.1(1) of CAR 1998, requiring users to consult that provision for legal authority.","Revocation and replacement: this AD expressly revokes a prior amendment (AD/GENERAL/39 Amdt 2) and issues Amdt 3, so readers must compare multiple historical instruments to see what changed.","Missing substantive sections in the excerpt: the requirement, applicability, background and compliance sections — which define scope, steps and deadlines — are referred to but not included, creating interpretive uncertainty.","Delegated administrative discretion: action is taken by a CASA delegate, concentrating decision-making in delegated administrative authority rather than in the statutory text itself.","Operational implementation burden: actual compliance requires physical installation work and record updates, but technical specs and timing are absent from the excerpt.","Potentially dispersed affected parties: the AD applies to the aircraft/aeronautical products identified in the applicability section, requiring identification of affected operators and possibly multiple maintenance organisations.","Need for cross-checking prior ADs and maintenance records: operators must verify whether existing placards or modifications satisfy the new AD or whether rework is required.","Unspecified compliance timeline: compliance timing is referenced but not provided in the excerpt, complicating planning and costing."],"plain_english_summary":"The instrument revokes AD/GENERAL/39 Amdt 2 and replaces it with AD/GENERAL/39 Amdt 3, issued by a CASA delegate under subreg 39.1(1) of the Civil Aviation Regulations 1998, requiring installation of a generator‑system warning placard as set out in the AD’s requirement/compliance sections.\n\nIt directly affects aircraft owners/operators and their maintenance organisations, who must carry out and pay for the installation and any paperwork; the excerpt omits the detailed applicability, timing and instructions, creating planning uncertainty."}},"importantCases":[],"_links":{"self":"/api/acts/ad-general-39-amdt-3-generator-system-warning-placard-installation","history":"/api/acts/ad-general-39-amdt-3-generator-system-warning-placard-installation/history","analysis":"/api/acts/ad-general-39-amdt-3-generator-system-warning-placard-installation/analysis","conflicts":"/api/acts/ad-general-39-amdt-3-generator-system-warning-placard-installation/conflicts","importantCases":"/api/acts/ad-general-39-amdt-3-generator-system-warning-placard-installation/important-cases","documents":"/api/acts/ad-general-39-amdt-3-generator-system-warning-placard-installation/documents"}}