{"id":"F2006B07901","name":"Airworthiness Directives 2004 - Revocation and Remaking - Honeywell International Turbine Engines - T5508D Series","slug":"airworthiness-directives-2004-revocation-and-remaking-honeywell-international-turbine-engines-t5508d","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50919,"registerId":"commonwealth-F2006B07901-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"Airworthiness Directives 2004 - Revocation and Remaking - Honeywell International Turbine Engines - T5508D Series","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 20.2\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\n Airworthiness Directives 2004\n\n I, DAVID ALAN VILLIERS, delegate of the Civil Aviation Safety\n\n Authority, acting under subregulation 39.001 (1) of the Civil\n\n Aviation Safety Regulations 1998:\n\n (a) revoke the Airworthiness Directives mentioned in\n\n Schedule 1; and\n\n (b) make, as separate instruments, each Airworthiness\n\n Directive mentioned in Schedule 1 and attached.\n\n \n\n ![](image.001.png)\n\n David Villiers\n\n Delegate of the Civil Aviation Safety Authority\n\n \n\n  20 December 2004\n\n Note:   Each attached Airworthiness Directive is being re-made in exactly the\n\n same form as appears in the latest published edition of the Directive.\n\n \n\n\n Schedule 1 Revocation and Remaking of\n\n Airworthiness Directives\n\n Honeywell International Turbine Engines - T5508D Series\n\n AD Name AD Number\n\n Inner Bevel Gear AD/T5508D/1\n\n Compressor Bleed Bands AD/T5508D/2\n\n 1st Stage Turbine Disk AD/T5508D/3\n\n \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument does not change the substantive content of the Airworthiness Directives it revokes and re-makes. The Note states each AD is re-made \"in exactly the same form\" as the latest published edition, so the scope of regulatory obligations in those ADs is unchanged by this instrument; the change is administrative (revocation and re-issuing as separate instruments) rather than substantive."},"complexity_factors":["Short, procedural instrument with limited operative content (revocation and re-making only).","Reference to an external regulation for authority (subregulation 39.001(1)) requires locating that provision for full context.","Schedule lists multiple separate ADs, meaning the instrument affects several distinct subordinate instruments.","Administrative nuance (revocation and re-issuance) rather than substantive amendment — low textual complexity but requires care to interpret legal effect.","Implicit administrative follow-up (attachments/re-made ADs) means the full practical impact requires consulting the attached ADs."],"plain_english_summary":"This instrument records a CASA delegate’s use of regulatory power to revoke and re‑issue three Airworthiness Directives for Honeywell T5508D‑series engines as separate instruments. It is an administrative re‑issuance only: the ADs are re‑made in the same published form, so substantive compliance obligations and costs remain unchanged while the legal status and record‑keeping of those ADs are updated."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This instrument maintains the exact same scope as the original directives. The note explicitly states each attached Airworthiness Directive is being remade in exactly the same form as the latest published edition. This is purely a procedural remaking to ensure proper legislative form, not an expansion of regulatory scope."},"complexity_factors":["Very short document (under 300 words)","Only 3 defined items in Schedule 1 (the three ADs being revoked and remade)","Simple binary structure: (a) revoke, (b) make","No nested exceptions or conditional logic","No cross-references to other legislation beyond the enabling regulation (subregulation 39.001(1))","Straightforward administrative action with explanatory note confirming no substantive change"],"plain_english_summary":"This is a technical aviation safety instrument issued by the Civil Aviation Safety Authority (CASA) in December 2004. It does two things:\n\n**What it does:**\n- **Revokes** (cancels) three existing Airworthiness Directives (ADs) for Honeywell T5508D series turbine engines\n- **Remakes** those same three directives as separate, standalone legal instruments\n\n**The three directives being updated are:**\n- **AD/T5508D/1** — concerns the Inner Bevel Gear\n- **AD/T5508D/2** — concerns Compressor Bleed Bands  \n- **AD/T5508D/3** — concerns the 1st Stage Turbine Disk\n\n**Who it affects:**\n- Owners and operators of aircraft using Honeywell T5508D series turbine engines\n- Maintenance organisations servicing these engines\n- CASA itself (as the regulator)\n\n**Why it matters:**\nAirworthiness Directives are legally binding safety orders. When CASA identifies a safety issue with an aircraft or engine part, they issue an AD requiring inspection, repair, or replacement. This instrument is doing \"housekeeping\" — updating the legal form of existing safety orders without changing their actual content. The note confirms each directive is being remade in exactly the same form as before, so the safety requirements themselves haven't changed.\n\nThis is essentially a procedural update to ensure the directives exist as properly authorised standalone instruments under the Civil Aviation Safety Regulations 1998."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-honeywell-international-turbine-engines-t5508d","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-honeywell-international-turbine-engines-t5508d/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-honeywell-international-turbine-engines-t5508d/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-honeywell-international-turbine-engines-t5508d/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-honeywell-international-turbine-engines-t5508d/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-honeywell-international-turbine-engines-t5508d/documents"}}