{"id":"F2006B10781","name":"AD/IAI-A/7 - Pressurisation System Emergency Operation Procedures","slug":"ad-iai-a-7-pressurisation-system-emergency-operation-procedures","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56242,"registerId":"commonwealth-F2006B10781-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 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.","sortOrder":0},{"sectionNumber":"AD/IAI-A/7 Pressurisation System Emergen","sectionType":"part","heading":"AD/IAI-A/7 Pressurisation System Emergency Operation Procedures","content":"# AD/IAI-A/7 Pressurisation System Emergency Operation Procedures\n\nApplicability: All Model Astra SPX aeroplanes.","sortOrder":1},{"sectionNumber":"6/2001","sectionType":"part","heading":"6/2001","content":"#   \n6/2001\n\nDM","sortOrder":2}],"analysis":{"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"Based on the text provided, there is no indication the AD’s scope has changed from its original intent. The instrument explicitly applies to all Model Astra SPX aeroplanes and requires actions set out in its requirement and compliance sections; the excerpt does not show any amendment, narrowing, or widening of applicability relative to that stated intent."},"complexity_factors":["Missing substantive content: the AD excerpt references a requirement section and a compliance section but does not include the specific required actions or deadlines, increasing practical complexity for implementers.","Legal delegation: issuance under subregulation 39.1(1) of CAR 1998 vests the CASA delegate with authority to prescribe corrective measures, which concentrates decision power and introduces administrative discretion.","Applicability breadth: the AD applies to all Model Astra SPX aeroplanes, so compliance affects the entire fleet of that model rather than a limited subset.","Operational implications: likely need to change procedures, training, and possibly perform maintenance or modifications—tasks that involve coordination between operators and maintenance organisations.","Enforcement and approval pathways not described: the excerpt does not set out alternative compliance routes, approval processes, or enforcement mechanics, adding uncertainty for operators seeking clarification or exemptions.","Interdependency with other documents: the AD signals that the full corrective method may be specified in the requirement section or referenced material (service instructions), creating document-tracing complexity."],"plain_english_summary":"This Airworthiness Directive, issued under subregulation 39.1(1) of the CAR 1998, mandates corrective action for an identified unsafe condition on all Model Astra SPX aeroplanes. It binds aircraft owners/operators and maintenance/training organisations to implement the AD’s requirements and compliance timings (not reproduced here). Compliance costs (training, maintenance, parts, downtime) fall to operators, who must follow the AD or seek approved alternatives."},"kimi_summary":{"content_quality":"rejected","complexity_score":3,"rejection_reason":"This is a fragment/cover page only. It contains the header, applicability statement, and authority citation, but lacks the actual substantive content: the 'requirement section' with the mandatory actions, the 'compliance section' with deadlines, and the 'background section' explaining the safety issue. Without these sections, the document is incomplete for meaningful analysis.","scope_assessment":{"changed":false,"description":"This appears to be a standard Airworthiness Directive with focused scope (specific aircraft model, specific system). No evidence of scope creep from original intent."},"complexity_factors":["Very short document (appears to be a cover/summary page only)","No defined terms section visible in this excerpt","Simple structure: applicability, authority citation, and reference to other sections","Heavy reliance on cross-referenced sections (requirement section, compliance section) not included in this fragment","Standard CASA AD template language — formulaic but not inherently complex"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by the Civil Aviation Safety Authority (CASA) for aircraft.\n\n**What it does:**\nThis directive requires owners and operators of **Astra SPX aeroplanes** to follow specific emergency procedures for their pressurisation systems. Pressurisation systems keep cabin air breathable at high altitudes; if they fail, passengers and crew can suffer from hypoxia (lack of oxygen), which is dangerous.\n\n**Who it affects:**\n- Anyone who owns or operates a **Model Astra SPX aeroplane** (a type of business jet)\n- Maintenance engineers who work on these aircraft\n- CASA inspectors who enforce compliance\n\n**Why it matters:**\nThe directive addresses an **unsafe condition** — likely a known fault or risk with how the pressurisation system handles emergencies. Without these mandatory procedures, there could be a risk of crew incapacitation or passenger harm due to sudden loss of cabin pressure.\n\n**What must happen:**\nThe aircraft operators must take specific actions (detailed in the \"requirement section\" and \"compliance section\" — not fully shown in this excerpt) to correct or mitigate the unsafe condition. These actions are **legally mandatory**, not optional."}},"importantCases":[],"_links":{"self":"/api/acts/ad-iai-a-7-pressurisation-system-emergency-operation-procedures","history":"/api/acts/ad-iai-a-7-pressurisation-system-emergency-operation-procedures/history","analysis":"/api/acts/ad-iai-a-7-pressurisation-system-emergency-operation-procedures/analysis","conflicts":"/api/acts/ad-iai-a-7-pressurisation-system-emergency-operation-procedures/conflicts","importantCases":"/api/acts/ad-iai-a-7-pressurisation-system-emergency-operation-procedures/important-cases","documents":"/api/acts/ad-iai-a-7-pressurisation-system-emergency-operation-procedures/documents"}}