{"id":"F2006B08049","name":"Airworthiness Directives 2004 - Revocation and Remaking - Van Grunsven RV Series Aeroplanes","slug":"airworthiness-directives-2004-revocation-and-remaking-van-grunsven-rv-series-aeroplanes","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115129,"registerId":"commonwealth-F2006B08049-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 - Van Grunsven RV 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 Van Grunsven RV Series Aeroplanes\n\n AD Name AD Number\n\n Elevator Trim Tab AD/VG-RV/1\n\n \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument does not change the substantive scope or obligations of the listed Airworthiness Directive. It revokes the prior instrument(s) and reissues each as a separate instrument in the same form as the latest published edition (see (a)–(b) and Note). Therefore, the regulatory scope and requirements applicable to Van Grunsven RV Series aeroplane operators for AD/VG‑RV/1 remain as before."},"complexity_factors":["Single procedural action: revocation and reissuance of listed AD(s) (see (a)–(b)).","Short, self‑contained text with a single affected AD listed in Schedule 1 (Elevator Trim Tab AD/VG‑RV/1).","No substantive rule changes — the Note states the re‑made directives are identical to the latest published edition.","Legal authority explicitly stated (subregulation 39.001(1)), limiting interpretive ambiguity about power to act.","Minimal operational detail: no transitional provisions, no new compliance procedure, and no fees specified, so stakeholders must rely on the attached AD for technical requirements."],"plain_english_summary":"What this instrument does (mechanics)\n\n- A delegate of the Civil Aviation Safety Authority (CASA) uses a power in subregulation 39.001(1) of the Civil Aviation Safety Regulations 1998 to take two linked procedural steps: (a) revoke the airworthiness directives listed in Schedule 1; and (b) re‑make each of those directives as separate instruments (see opening paragraph and (a)–(b)).\n- The instrument is dated 20 December 2004 and signed by David Alan Villiers as the CASA delegate (see signature line).\n- Schedule 1 identifies the affected directive: the Elevator Trim Tab directive for Van Grunsven RV Series aeroplanes, AD/VG‑RV/1 (see Schedule 1).\n- The note states that each re‑made Airworthiness Directive is being reissued in exactly the same form as appears in the latest published edition of the Directive (see Note).\n\nWho is affected\n\n- Owners, operators, maintainers and anyone required to comply with the specific Airworthiness Directive AD/VG‑RV/1 for Van Grunsven RV Series aeroplanes are the direct parties affected (see Schedule 1).\n- CASA (through its delegate) is the decision maker carrying out the administrative revocation and reissuance (see the opening paragraph and signature).\n\nWhy it matters (stated purpose and practical effect)\n\n- The instrument's stated operation is procedural: it replaces the listed Airworthiness Directive(s) by revoking them and issuing the same text as separate instruments (see (a)–(b) and Note).\n- In practice this means the substance of the requirement (the content of AD/VG‑RV/1) is not changed by this instrument; the legal form of the directive is refreshed or reissued in the official register (see Note).\n\nCosts, incentives and compliance burden (source‑grounded)\n\n- Compliance obligations for affected aircraft operators are unchanged because the re‑made directive is stated to be identical to the latest published edition (see Note). Any costs of complying with the substantive AD therefore remain as before.\n- Administrative costs fall on CASA to perform the revocation and reissuance process (see opening paragraph). These are implementation costs internal to the regulator; the instrument does not identify fees or charges on operators.\n- There is a minor operational risk that stakeholders must ensure they are consulting the current, re‑made instrument rather than a superseded copy. The instrument does not describe transitional arrangements beyond the re‑issuance step (see (a)–(b) and Note).\n\nDelegation and discretion\n\n- The action is taken by a CASA delegate under subregulation 39.001(1) of the Civil Aviation Safety Regulations 1998, showing the statutory power used to revoke and re‑make directives (see opening paragraph). The text does not expand the scope of that discretion or add new criteria for using it.\n\nTrade‑offs and opportunity costs\n\n- The instrument trades regulator time and administrative steps for the legal clarity of having the directive issued as separate instruments. The source text expressly keeps the directive text unchanged, so there is no stated regulatory tightening or easing (see Note).\n\nNet practical effect (plain statement)\n\n- Legally, the listed Airworthiness Directive for the Van Grunsven RV Series (AD/VG‑RV/1, Elevator Trim Tab) is revoked in its prior form and simultaneously reissued in identical form as a separate instrument. Affected operators must continue to follow the directive as re‑issued; the substance of their obligations is unchanged according to this instrument (see (a)–(b) and Note)."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This instrument performs a purely administrative function: revoking and remaking an existing Airworthiness Directive without altering its substantive content. The scope remains identical to the original 2004 (and earlier) directive — it continues to regulate only the elevator trim tab on Van Grunsven RV series aircraft. No expansion of regulated parties, aircraft types, or safety requirements has occurred."},"complexity_factors":["Extremely short instrument — approximately 200 words","Only one substantive operational provision (revocation and remaking of a single directive)","No defined terms section — relies entirely on external references (the attached AD and the Civil Aviation Safety Regulations 1998)","Simple binary structure: (a) revoke, (b) remake","Single cross-reference to Schedule 1, which contains only one entry","No conditional logic, exceptions, or nested provisions","Note clarifies that content is unchanged — no interpretive ambiguity"],"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 — a mandatory safety notice that tells aircraft owners they must fix a specific problem\n- **Remakes** that same directive as a fresh, standalone legal instrument\n\n**Who it affects:**\n- Owners and operators of **Van Grunsven RV series aeroplanes** — these are popular home-built (kit) aircraft designed by Richard Van Grunsven in the United States\n- Specifically, anyone with an RV model aircraft who must comply with the **Elevator Trim Tab** directive (numbered AD/VG-RV/1)\n\n**Why it matters:**\nAirworthiness Directives are legally binding safety orders. If you own one of these aircraft, you **must** follow the directive's instructions — typically inspecting or modifying the elevator trim tab (the small adjustable surface on the tail that helps control the plane's pitch). The 2004 remake doesn't change the actual safety requirement; CASA is simply updating the legal paperwork to keep the directive current and properly authorised under the Civil Aviation Safety Regulations 1998.\n\n**The bottom line:** If you fly or maintain an RV series aircraft, check whether AD/VG-RV/1 applies to your plane. The safety rule itself hasn't changed, but the legal instrument enforcing it has been refreshed."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-van-grunsven-rv-series-aeroplanes","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-van-grunsven-rv-series-aeroplanes/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-van-grunsven-rv-series-aeroplanes/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-van-grunsven-rv-series-aeroplanes/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-van-grunsven-rv-series-aeroplanes/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-van-grunsven-rv-series-aeroplanes/documents"}}