{"id":"F2006B08045","name":"Airworthiness Directives 2004 - Revocation and Remaking - Turbomeca Turbine Engines - Makila Series","slug":"airworthiness-directives-2004-revocation-and-remaking-turbomeca-turbine-engines-makila-series","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115123,"registerId":"commonwealth-F2006B08045-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 - Turbomeca Turbine Engines - Makila Series","content":"Airworthiness Directives 2004\n\nI, DAVID ALAN VILLIERS, delegate of the Civil Aviation Safety\n\nAuthority, acting under subregulation 39.001 (1) of the Civil\n\nAviation Safety Regulations 1998:\n\n(a) revoke the Airworthiness Directives mentioned in\n\nSchedule 1; and\n\n(b) make, as separate instruments, each Airworthiness\n\nDirective mentioned in Schedule 1 and attached.\n\n![](image.001.png)\n\nDavid Villiers\n\nDelegate of the Civil Aviation Safety Authority\n\n20 December 2004\n\nNote: Each attached Airworthiness Directive is being re-made in exactly the\n\nsame form as appears in the latest published edition of the Directive.\n\n  \nSchedule 1 Revocation and Remaking of\n\nAirworthiness Directives\n\nTurbomeca Turbine Engines - Makila Series\n\nAD Name AD Number\n\nService Life Limits - CANCELLED AD/MAKILA/1\n\nGovernor Master and Auxiliary Cams AD/MAKILA/2\n\nElectronic Control Unit AD/MAKILA/3\n\nElectronic Control Unit AD/MAKILA/4\n\nExhaust Pipe Cracks AD/MAKILA/5\n\nExhaust Pipe Replacement AD/MAKILA/6","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This instrument performs a pure administrative remaking function. The scope remains identical to the original directives—no expansion of regulatory coverage, no new safety requirements, and no change to affected parties. The note explicitly confirms each directive is remade 'in exactly the same form' as previously published."},"complexity_factors":["Very short instrument (under 300 words)","Only 1 defined term implicitly used ('Airworthiness Directive' from the parent regulations)","No conditional logic or nested exceptions","Simple binary structure: revoke (a) and remake (b)","Cross-reference limited to a single subregulation (39.001(1)) and a schedule table","Substantive content contained in attached instruments not reproduced in the legislative text itself"],"plain_english_summary":"This is a technical aviation safety instrument that **revokes and immediately remakes six specific airworthiness directives** for a particular type of aircraft engine—the Turbomeca Makila series of turbine engines.\n\n**What it does:**\n- **Revokes** (cancels) six existing safety directives for these engines\n- **Immediately remakes** them as six separate, standalone legal instruments\n- The remade directives are **identical** to the versions already in force—no changes to the actual safety requirements\n\n**Who it affects:**\n- Aircraft operators and maintenance organisations using Turbomeca Makila engines (commonly used in helicopters like the Eurocopter AS332 Super Puma)\n- The Civil Aviation Safety Authority (CASA), which regulates Australian aviation safety\n\n**Why it matters:**\nAirworthiness Directives are **legally binding safety orders** that require specific inspections, repairs, or modifications to aircraft components. This instrument is essentially an **administrative housekeeping exercise**—restructuring how these six directives exist in the legal framework without changing their substance. This kind of remaking is often done to improve regulatory clarity, fix technical drafting issues, or align with changes in how CASA manages its legislative instruments.\n\nThe directives cover:\n- Service life limits (cancelled)\n- Governor cam systems\n- Electronic control units (two separate directives)\n- Exhaust pipe cracks and replacement"},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument explicitly revokes the listed Airworthiness Directives and re-makes each in exactly the same form as the latest published edition (see paras (a)–(b) and the Note). Because the Note fixes the text of the re-made ADs to be identical to the published versions, the substantive scope of regulatory obligations is unchanged by this instrument itself; the action is administrative."},"complexity_factors":["Single, narrowly focused administrative action (revocation and re-issuance) rather than substantive regulatory change (paras (a)–(b)).","Cross-reference to statutory power in subregulation 39.001(1) as legal basis (instrument opening).","Reliance on attached Airworthiness Directives for substantive detail — those ADs are not reproduced in this instrument (para (b) and Schedule 1).","List of multiple ADs for a named engine family (Schedule 1) requires checking each separate instrument for operational obligations.","Explicit statement that re-made ADs are identical to the latest published editions limits substantive discretion but raises an implementation dependency on accurate attachment/publication (Note)."],"plain_english_summary":"What this instrument does (mechanically)\n\n- The delegate of the Civil Aviation Safety Authority (David Alan Villiers) uses the power in subregulation 39.001(1) of the Civil Aviation Safety Regulations 1998 to revoke a set of Airworthiness Directives and to re-make each of them as separate instruments (see instrument paras (a)–(b) and the heading naming the delegate).\n- The specific Airworthiness Directives affected are listed in Schedule 1 under the heading “Turbomeca Turbine Engines - Makila Series”: Service Life Limits (AD/MAKILA/1), Governor Master and Auxiliary Cams (AD/MAKILA/2), Electronic Control Unit (AD/MAKILA/3 and AD/MAKILA/4), Exhaust Pipe Cracks (AD/MAKILA/5), and Exhaust Pipe Replacement (AD/MAKILA/6) (see Schedule 1).\n- The instrument states that each re-made Airworthiness Directive is being issued in exactly the same form as appears in the latest published edition of that Directive (see Note).\n\nWho decides and who is likely affected\n\n- Decision-maker: the instrument is signed by the CASA delegate, David Alan Villiers, exercising the statutory power in subregulation 39.001(1) (see instrument opening and signature).\n- Directly affected items named in the instrument: the listed Airworthiness Directives for Turbomeca Makila series turbine engines (see Schedule 1). The practical effect is directed at the legal instruments (the AD documents) themselves; the underlying operational obligations continue to be determined by those ADs as re-made and attached (see para (b) and the Note).\n\nOfficial rationale and testing that claim against costs and incentives\n\n- The instrument’s explicit statement (the Note) is that the ADs are being re-made in exactly the same form as their latest published editions. That is an administrative instruction: it does not, on its face, change the substantive content of the ADs (see Note).\n- Costs and compliance burden: because the re-made ADs are identical in form to the latest published versions, the immediate compliance obligations and costs for anyone already required to follow those ADs should remain the same (see Note). The instrument itself does create administrative work: revocation and re-issuance as separate instruments requires actions by the regulator to record and publish the separate instruments (see paras (a)–(b)).\n- Incentives and behaviour: the instrument mechanically separates each AD into its own instrument (para (b)), which may make each AD easier to cite, track, or amend later. The instrument does not, by its text, change the substantive rules that govern operators, maintenance providers or owners; any change in behaviour would therefore result from changes to the ADs themselves, not from this re-issuing step (see Note).\n\nDiscretion, implementation risk and opportunity costs\n\n- Discretion: the power exercised is administrative and specific: revoke the listed ADs and re-make them in identical form. The Note limits substantive discretion in this instrument because it fixes the re-made ADs to be identical to the latest published versions (see Note).\n- Implementation risk: the legal effect depends on the attached re-made ADs being correctly attached and published as separate instruments (para (b)). If attachments or publication records are incomplete or inconsistent, there is a risk of ambiguity about the operative text.\n- Opportunity cost: time and resources spent by the regulator to revoke and re-issue identical instruments are administrative overhead; operators’ ongoing compliance effort is unchanged by this instrument itself (see paras (a)–(b) and the Note).\n\nNet mechanical effect (concise)\n\n- This instrument revokes the listed Turbomeca Makila-series Airworthiness Directives and re-issues each as a separate instrument in exactly the same form as the latest published edition. It is an administrative restructuring of how those ADs are recorded and published; it does not, on its face, change the substantive content of those ADs (see paras (a)–(b) and the Note)."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-turbomeca-turbine-engines-makila-series","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-turbomeca-turbine-engines-makila-series/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-turbomeca-turbine-engines-makila-series/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-turbomeca-turbine-engines-makila-series/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-turbomeca-turbine-engines-makila-series/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-turbomeca-turbine-engines-makila-series/documents"}}