{"id":"F2006B07967","name":"Airworthiness Directives 2004 - Revocation and Remaking - Pneumatic Equipment","slug":"airworthiness-directives-2004-revocation-and-remaking-pneumatic-equipment","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115014,"registerId":"commonwealth-F2006B07967-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"Airworthiness Directives 2004 - Revocation and Remaking - Pneumatic Equipment","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 Pneumatic Equipment\n\n AD Name AD Number\n\n CANCELLED AD/PNEU/1\n\n Oil and Water Traps - Retirement AD/PNEU/2\n\n Garrett AiResearch Starters AD/PNEU/3\n\n \n","sortOrder":0}],"analysis":{"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 explicit note states each AD is being remade 'in exactly the same form as appears in the latest published edition.' This is purely a procedural remaking under a new regulatory framework, not an expansion of 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","Single cross-reference to Civil Aviation Safety Regulations 1998 (subregulation 39.001(1)) — the enabling power","No interpretation section or defined terms","Straightforward administrative action with no substantive policy changes"],"plain_english_summary":"This is a formal legal instrument made by a delegate of the Civil Aviation Safety Authority (CASA) in December 2004. It does two things:\n\n**What it does:**\n- **Revokes** (cancels) three old Airworthiness Directives (ADs) relating to pneumatic equipment on aircraft — specifically AD/PNEU/1, AD/PNEU/2, and AD/PNEU/3\n- **Remakes** those same three directives as new, separate legal instruments\n\n**Who it affects:**\n- Aircraft owners and operators who have aircraft with pneumatic equipment (systems using compressed air or gas)\n- Maintenance organisations and engineers who work on this equipment\n- Specifically, those dealing with:\n  - Cancelled equipment (AD/PNEU/1)\n  - Oil and water traps that need retirement/replacement (AD/PNEU/2)\n  - Garrett AiResearch starters (AD/PNEU/3)\n\n**Why it matters:**\nAirworthiness Directives are mandatory safety instructions. They tell aircraft operators what they must do to keep their planes safe. This instrument is essentially a \"housekeeping\" exercise — updating the legal form of these safety rules without changing their actual content. The note at the bottom confirms each directive is being remade in exactly the same form as before, so the safety requirements themselves haven't changed.\n\nThis kind of remaking is common when regulations are being restructured or when old instruments need to be brought under new legal frameworks."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"This instrument does not change the substantive scope or requirements of the listed Airworthiness Directives. It revokes the prior instruments listed in Schedule 1 and re-issues each as a separate instrument in exactly the same form as the latest published edition of the Directive (see operative paragraph and Note)."},"complexity_factors":["Short, single-purpose administrative instrument (revocation and re-making)","References to delegated statutory authority (subregulation 39.001(1)) requiring legal citation knowledge","Dependence on attached/externally published Airworthiness Directives for substantive content (attachments and published editions carry the operational obligations)","Schedule listing multiple ADs requiring cross-referencing to those specific directives for operational detail","Technical subject matter (airworthiness/pneumatic equipment) means subject-matter expertise is needed to implement the ADs, even though the instrument itself is simple"],"plain_english_summary":"What this instrument does\n\n- A delegate of the Civil Aviation Safety Authority (David Alan Villiers) uses a delegation under subregulation 39.001(1) of the Civil Aviation Safety Regulations 1998 to revoke certain airworthiness directives and to re-issue each of them as separate instruments (see subregulation citation and operative paragraph).\n- The directives affected are listed in Schedule 1 (Pneumatic Equipment: AD/PNEU/1 [cancelled], AD/PNEU/2 Oil and Water Traps - Retirement, AD/PNEU/3 Garrett AiResearch Starters) and are attached to the instrument (see Schedule 1).\n- The instrument expressly states that each attached Airworthiness Directive is being re-made in exactly the same form as appears in the latest published edition of that Directive (see Note).\n\nWho decides and who is affected\n\n- Decision-maker: the CASA delegate acting under subregulation 39.001(1) of the Civil Aviation Safety Regulations 1998 (operative paragraph).\n- Parties affected: holders of aircraft, operators, maintenance organisations and other persons who are subject to the listed airworthiness directives for pneumatic equipment (effect follows from revocation and re-making of those ADs). These parties are the ones who must meet any continuing requirements set out in the re-made directives.\n\nWhy the instrument matters (stated purpose and mechanical effect)\n\n- Stated purpose: to revoke the named airworthiness directives and to re-make each of them as separate instruments (operative paragraph). The Note adds that the re-made instruments are identical in form to the latest published editions of the directives.\n- Mechanical effect: the listed ADs are revoked as prior instruments and replaced by newly made, separate instruments that replicate the latest published text. Because the re-made ADs are identical in form to the published editions, the substantive obligations in those published ADs remain in force in the new instruments (see Note and Schedule 1).\n\nCompliance, costs and administrative effects (how behaviour and burdens are allocated)\n\n- Who pays / bears compliance burden: persons and organisations required to comply with those ADs (owners/operators/maintenance organisations) must continue to satisfy the requirements contained in the re-made ADs. The instrument itself does not change the text of the directives, so compliance obligations remain as in the published editions (Note; Schedule 1).\n- Administrative cost and discretion: the instrument is an exercise of delegated statutory power (subregulation 39.001(1)). It performs an administrative replacement of instruments rather than altering substantive requirements; that choice concentrates decision authority in the CASA delegate and keeps the content of obligations identical to the published ADs (operative paragraph; Note).\n\nTrade-offs, risks and implementation notes\n\n- Trade-offs and opportunity costs: the instrument replaces existing instruments with separate, re-made instruments in identical form. That preserves regulatory content while creating new instrument records; it imposes administrative work on the regulator and preserves whatever compliance costs already existed for affected parties (operative paragraph; Note).\n- Implementation risk and unintended change: because the instrument re-makes ADs in the same form as the published editions, the risk of substantive change to obligations is minimal. Any change would arise only if the published edition differed from the prior instrument (Note).\n\nKey citations from the instrument\n\n- Power used: subregulation 39.001(1) of the Civil Aviation Safety Regulations 1998 (statement of authority).\n- Action taken: revoke the Airworthiness Directives mentioned in Schedule 1 and make, as separate instruments, each Airworthiness Directive mentioned in Schedule 1 and attached (operative paragraph).\n- Confirmation of substance: \"Each attached Airworthiness Directive is being re-made in exactly the same form as appears in the latest published edition of the Directive.\" (Note).\n- Affected items: Schedule 1 listing of the pneumatic-equipment ADs (Schedule 1)."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-pneumatic-equipment","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-pneumatic-equipment/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-pneumatic-equipment/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-pneumatic-equipment/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-pneumatic-equipment/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-pneumatic-equipment/documents"}}