{"id":"F2006B07938","name":"Airworthiness Directives 2004 - Revocation and Remaking - Pacific Aerospace Corporation CT/4 Series Aeroplanes","slug":"airworthiness-directives-2004-revocation-and-remaking-pacific-aerospace-corporation-ct-4-series-aero","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":51001,"registerId":"commonwealth-F2006B07938-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 - Pacific Aerospace Corporation CT/4 Series Aeroplanes","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 Pacific Aerospace Corporation CT/4 Series Aeroplanes\n\n AD Name AD Number\n\n Fuel Contents Indication AD/CT4/1\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a pure consolidation/remaking exercise. The instrument explicitly states that the attached Airworthiness Directive is being remade 'in exactly the same form as appears in the latest published edition of the Directive.' There is no expansion of scope, no new safety requirements, and no change to affected parties. The sole purpose is to maintain legal continuity under the CASR 1998 framework."},"complexity_factors":["Very short instrument — approximately 200 words","Only one substantive action (revoking and remaking a single Airworthiness Directive)","No defined terms section — relies on external references to the Civil Aviation Safety Regulations 1998","Simple binary structure: (a) revoke, (b) remake","Single schedule with one entry (AD/CT4/1)","No conditional logic, exceptions, or nested provisions","Cross-reference limited to one regulation (subregulation 39.001(1)) and one external document (the attached AD)"],"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) an existing Airworthiness Directive — specifically **AD/CT4/1** concerning \"Fuel Contents Indication\" for Pacific Aerospace Corporation CT/4 series aeroplanes\n- **Remakes** that same directive as a fresh, standalone legal instrument\n\n**Who it affects:**\n- Owners and operators of **CT/4 series aircraft** (a type of military trainer and aerobatic plane originally built in New Zealand, used by the RAAF and others)\n- Maintenance organisations servicing these aircraft\n- CASA itself, as the regulator\n\n**Why it matters:**\nAirworthiness Directives are **legally binding safety orders** issued when a design flaw, maintenance issue, or operational problem poses a risk to aircraft safety. They typically require specific inspections, repairs, or modifications. This instrument ensures the fuel indication safety requirement stays in force under current regulations.\n\nThe \"revoke and remake\" process is a **housekeeping exercise** — it doesn't change the actual safety requirement. Instead, it reissues the directive under updated legal authority (the Civil Aviation Safety Regulations 1998) to ensure it remains legally valid and enforceable."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument re-makes the listed Airworthiness Directive in exactly the same form as the latest published edition (as stated in the instrument). Consequently the substantive scope and requirements of AD/CT4/1 are not changed by this revocation-and-remaking; the action alters the legal form/packaging of the Directive rather than its substance."},"complexity_factors":["Very short, single-purpose text limited to revocation and re-issuance","Direct reliance on an external power (subregulation 39.001(1)) without further procedural detail","No technical or substantive regulatory changes are made — instrument is administrative rather than technical","A single listed Airworthiness Directive (AD/CT4/1) limits cross-references and affected parties","Reference to attached/supplementary material (the re-made AD) means full effect depends on that attachment"],"plain_english_summary":"This instrument administratively revokes AD/CT4/1 (Pacific Aerospace CT/4 — Fuel Contents Indication) and re-makes it as a separate Airworthiness Directive in exactly the same published form. It is signed by a CASA delegate under subregulation 39.001(1).\n\nAffected operators, owners, maintainers and CASA face only an administrative change in legal form; substantive obligations and compliance requirements remain unchanged."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-pacific-aerospace-corporation-ct-4-series-aero","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-pacific-aerospace-corporation-ct-4-series-aero/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-pacific-aerospace-corporation-ct-4-series-aero/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-pacific-aerospace-corporation-ct-4-series-aero/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-pacific-aerospace-corporation-ct-4-series-aero/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-pacific-aerospace-corporation-ct-4-series-aero/documents"}}