{"id":"F2006B07932","name":"Airworthiness Directives 2004 - Revocation and Remaking - Navion Series Aeroplanes","slug":"airworthiness-directives-2004-revocation-and-remaking-navion-series-aeroplanes","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50987,"registerId":"commonwealth-F2006B07932-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 - Navion 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 Navion Series Aeroplanes\n\n AD Name AD Number\n\n Wing Panel - Inspection and Modification AD/NAV/1\n\n Rudder Horn - Inspection AD/NAV/2\n\n Front Seat Restraint Installations - Modification AD/NAV/3\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This instrument maintains identical scope to the original directives. The explicit note states each directive is 'being re-made in exactly the same form as appears in the latest published edition.' This is purely a procedural reissuance, not an expansion of regulatory scope."},"complexity_factors":["Very short instrument (approximately 250 words)","Only 3 defined items in Schedule 1 (the three AD numbers)","Simple binary structure: revoke (a) and remake (b)","No nested conditional logic or cross-references to other legislation beyond the enabling regulation (subregulation 39.001(1))","Single operative provision with straightforward administrative purpose","No exceptions, exemptions, or transitional provisions"],"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 for Navion series aeroplanes\n- **Remakes** those same three directives as separate, standalone legal instruments\n\n**Who it affects:**\n- Owners and operators of Navion series aircraft (a type of light aircraft originally manufactured by North American Aviation)\n- Aircraft maintenance engineers and organisations who work on these planes\n\n**Why it matters:**\nAirworthiness Directives are legally binding safety instructions that require specific inspections, modifications, or repairs to aircraft. They exist to prevent accidents and ensure aircraft remain safe to fly. This instrument is essentially a housekeeping exercise—reissuing existing safety requirements in a new format without changing their substance.\n\n**The three directives being remade cover:**\n- **AD/NAV/1:** Inspection and modification of wing panels\n- **AD/NAV/2:** Inspection of the rudder horn (a control surface component)\n- **AD/NAV/3:** Modification of front seat restraint installations (seatbelts/harnesses)\n\nThe note at the bottom confirms these are being remade in exactly the same form as previously published—so no new requirements are being introduced."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The instrument does not change the substantive requirements of the Airworthiness Directives named in Schedule 1. It revokes and then re-makes each AD in the same wording as the latest published edition (see Note), so the legal obligations described in those ADs are preserved. The primary change is procedural: each AD is reissued as a separate instrument (see opening paragraph and Schedule 1)."},"complexity_factors":["Short, narrowly procedural instrument (revocation and re-making of listed ADs) reduces substantive complexity","Reliance on delegated power under subregulation 39.001(1) requires understanding of delegation mechanics","Multiple separate instruments are created (three ADs listed) which increases administrative tracking requirements","The Note that re-made ADs are identical to latest published editions shifts complexity to locating and reading those published AD texts (which are not included here)","Potential downstream compliance complexity exists in the content of the ADs themselves (inspection/modification requirements), but that substantive detail lies outside this instrument"],"plain_english_summary":"What this instrument does (mechanics)\n\n- A delegate of the Civil Aviation Safety Authority (CASA) uses power under subregulation 39.001(1) to revoke three previously published Airworthiness Directives (ADs) and immediately re-make each of them as separate instruments (see subregulation 39.001(1) and Schedule 1).\n- The three ADs affected are those listed in Schedule 1 for Navion series aeroplanes: “Wing Panel - Inspection and Modification” (AD/NAV/1), “Rudder Horn - Inspection” (AD/NAV/2) and “Front Seat Restraint Installations - Modification” (AD/NAV/3) (see Schedule 1).\n- The instrument records that each re-made AD is identical in wording to the latest published edition of that Directive (see Note). In other words, the text and stated requirements of each AD are carried forward unchanged into the newly made separate instruments (see Note).\n\nWho is affected\n\n- The ADs named in Schedule 1 apply to Navion series aeroplanes; the owners, operators, maintenance organisations or other parties subject to those ADs will be the ones practically affected because the ADs concern inspections and modifications listed by name in Schedule 1.\n- The delegate (David Alan Villiers) and CASA are the decision-makers executing the administrative change (see opening paragraph and signature block).\n\nWhy it matters (stated purpose, then practical test)\n\n- Stated purpose: the document effects administrative revocation and re-making of listed ADs so that each appears as a separate instrument and matches the latest published text (see opening paragraph and Note).\n- Practical implications and trade-offs:\n  - Substantive requirements: because the ADs are re-made \"in exactly the same form\" as the latest published edition, the substantive inspection and modification obligations named in Schedule 1 are preserved rather than changed (see Note and Schedule 1). This suggests no new technical requirements are introduced by this instrument.\n  - Legal/administrative effect: the principal change is procedural — converting the listed ADs into separate instruments. That can affect how the ADs are tracked, cited, or enforced administratively (see opening paragraph).\n  - Who pays / bears costs: any costs of complying with the inspection or modification requirements in the re-made ADs will be borne by the parties required to comply with those ADs (the Schedule 1 subjects), because the ADs themselves specify actions (inspections/modifications) by name (see Schedule 1). The instrument does not alter those obligations; it simply reissues them in a distinct instrument form (see Note).\n  - Compliance burden and administrative cost: re-making as separate instruments is likely to impose minimal one-off administrative work for CASA (to re-issue instruments) and for affected parties (to note the re-issue). If the ADs already required inspections or modifications, ongoing compliance costs continue unchanged because the AD texts remain identical (see Note).\n  - Discretion and implementation risk: the action is taken by a CASA delegate under the cited regulation; the instrument itself does not create new discretionary powers or new technical obligations beyond those present in the re-made ADs (see subregulation 39.001(1) and Note). Implementation risk is therefore mainly administrative (ensuring the separate instruments correctly mirror the published texts).\n  - Market effects and private choice: because the instrument preserves the existing AD texts, it does not by itself change how businesses compete, price services, or choose technical solutions. Any effects on competition or costs would arise from the substantive inspection/modification requirements contained in the ADs themselves, not from this procedural reissuing (see Note and Schedule 1).\n\nNet description\n\n- Mechanically, this instrument revokes and reissues three Navion-series airworthiness directives in identical form so each exists as a separate, attached instrument. The delegate and CASA are the decision-makers; the named owners/operators/maintenance parties remain those who must meet the inspection/modification requirements stated in the ADs. The document is an administrative re-forming of existing requirements rather than a substantive policy change (see subregulation 39.001(1), Schedule 1 and Note)."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-navion-series-aeroplanes","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-navion-series-aeroplanes/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-navion-series-aeroplanes/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-navion-series-aeroplanes/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-navion-series-aeroplanes/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-navion-series-aeroplanes/documents"}}