{"id":"F2006B08507","name":"AD/CF700/3 - Compressor Rotor Assembly","slug":"ad-cf700-3-compressor-rotor-assembly","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":51227,"registerId":"commonwealth-F2006B08507-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CF700/3 - Compressor Rotor Assembly","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 - 106 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  General Electric Turbine Engines - CF700 Series\n\n \n\nAD/CF700/3 Compressor Rotor Assembly 9/85\n\nApplicability: All CF700-2C.\n\n \n\nDocument: General Electric SB (CF700) 72-49; or\n\n \n\nAD/GE-T/7.\n\n \n\nCompliance: Before 17 November 1967.\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\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The document explicitly states its applicability as \"All CF700-2C\" and references the service bulletin or alternate AD for required action (Applicability; Document). The text contains no indication that the scope has been widened or narrowed from an earlier version; therefore there is no evidence in this instrument that the stated scope has changed."},"complexity_factors":["Reference to external technical documents for the required action (General Electric SB (CF700) 72-49; or AD/GE-T/7) — increases procedural dependence on outside material (Document).","Short, absolute compliance requirement with a single deadline (\"Before 17 November 1967\") — raises scheduling and operational pressure (Compliance).","Narrow applicability to a specific engine variant (All CF700-2C) but minimal detail in the AD itself — requires cross-checking of fleet records to determine affected airframes (Applicability).","Authority and enforcement are centralised in the Civil Aviation Safety Authority but the AD text gives no operational exemptions or alternative compliance procedures — creates binary compliance outcome (Civil Aviation Safety Authority; SCHEDULE OF AIRWORTHINESS DIRECTIVES).","Lack of technical detail in the AD increases reliance on maintenance organisations and original equipment manufacturer instructions, creating implementation risk if those documents or parts are not readily available (Document)."],"plain_english_summary":"## What this instrument does (mechanical effect)\n\nThis Airworthiness Directive (AD/CF700/3) requires operators of a specific engine model to carry out the work described in an external service instruction before a named date. The AD cites a General Electric service bulletin or an alternative AD as the required document for the work: \"General Electric SB (CF700) 72-49; or AD/GE-T/7\" (Document). It directs compliance by a deadline: \"Before 17 November 1967\" (Compliance). The AD is issued under the Commonwealth Schedule of Airworthiness Directives by the Civil Aviation Safety Authority (Civil Aviation Safety Authority; SCHEDULE OF AIRWORTHINESS DIRECTIVES).\n\n## Who this affects\n\n- Owners and operators of aircraft fitted with CF700-2C engines (Applicability: All CF700-2C).\n- Maintenance organisations and engineers who perform work under the referenced General Electric service bulletin or the alternate AD (Document).\n\n## Why the instrument exists (stated purpose and how that matters mechanically)\n\n- The title and the referenced documents identify the subject as the compressor rotor assembly (AD/CF700/3 — Compressor Rotor Assembly). The AD therefore instructs the relevant operators to perform the actions laid out in the referenced service bulletin or AD in order to address that component (Document).\n\n## Costs, incentives and trade-offs (mechanics, not a judgement)\n\n- Who pays: operators/owners bear the direct cost of the inspections, repairs or parts required by the referenced service bulletin or AD (Applicability; Document).\n- Compliance burden and timing: the AD imposes an absolute compliance deadline (\"Before 17 November 1967\"), which creates a firm scheduling and operational constraint for affected aircraft until the work is completed (Compliance).\n- Reliance on external documents: the AD does not reproduce technical steps; it mandates following the General Electric service bulletin or the alternate AD (Document). That creates a dependency on those documents for technical detail and on whoever is authorised to perform the work.\n- Enforcement and decision-making: the AD is part of the Civil Aviation Safety Authority's Schedule of Airworthiness Directives, so CASA is the issuing authority and enforcer of the directive (Civil Aviation Safety Authority; SCHEDULE OF AIRWORTHINESS DIRECTIVES).\n\n## Implementation risks and practical notes\n\n- The AD references external materials for the required action (General Electric SB (CF700) 72-49; or AD/GE-T/7) but does not set out the specific technical procedure in this text (Document). This creates an implementation dependency on those documents being available and on maintenance providers being able to perform the work per those instructions.\n- The AD gives a single compliance date (Compliance: Before 17 November 1967). The document itself does not set out any staged compliance options, financial assistance, or exemptions in its text.\n\n## Behavioural effects (who decides, who acts)\n\n- The Civil Aviation Safety Authority issues this AD and specifies the compliance requirement (Civil Aviation Safety Authority; SCHEDULE OF AIRWORTHINESS DIRECTIVES).\n- Affected operators must follow the General Electric service bulletin or the alternate AD to complete the required actions on CF700-2C engines before the stated date (Applicability; Document; Compliance)."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive from 1985 (referencing a 1967 compliance deadline). It has not expanded beyond its original narrow purpose of addressing a specific mechanical defect in a specific engine model."},"complexity_factors":["Extremely short document (approximately 150 words)","Only 1 defined applicability (CF700-2C engines)","Single compliance requirement with clear deadline","No nested exceptions or conditional logic","Simple cross-reference to manufacturer service bulletin and one alternative AD","No interpretation section or defined terms"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). It applies to **all CF700-2C aircraft engines** (a type of jet engine made by General Electric).\n\n**What it requires:**\n- Aircraft operators must inspect or replace the **compressor rotor assembly** (a critical rotating component that compresses air for the engine) before **17 November 1967**.\n\n**Why it matters:**\n- Compressor rotor failures can cause catastrophic engine damage and potentially lead to crashes. This directive was issued to prevent mechanical failures in this specific engine model.\n\n**How to comply:**\n- Follow the instructions in **General Electric Service Bulletin 72-49** (technical instructions from the manufacturer), or alternatively comply with **AD/GE-T/7** (another related airworthiness directive).\n\n**Who it affects:**\n- Airlines, charter operators, or private owners flying aircraft with CF700-2C engines."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cf700-3-compressor-rotor-assembly","history":"/api/acts/ad-cf700-3-compressor-rotor-assembly/history","analysis":"/api/acts/ad-cf700-3-compressor-rotor-assembly/analysis","conflicts":"/api/acts/ad-cf700-3-compressor-rotor-assembly/conflicts","importantCases":"/api/acts/ad-cf700-3-compressor-rotor-assembly/important-cases","documents":"/api/acts/ad-cf700-3-compressor-rotor-assembly/documents"}}