{"id":"F2006B08007","name":"Airworthiness Directives 2004 - Revocation and Remaking - Rolls Royce Germany Turbine Engines - BR700 Series","slug":"airworthiness-directives-2004-revocation-and-remaking-rolls-royce-germany-turbine-engines-br700-seri","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115067,"registerId":"commonwealth-F2006B08007-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 - Rolls Royce Germany Turbine Engines - BR700 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\nRolls Royce Germany Turbine Engines - BR700 Series\n\nAD Name AD Number\n\nHigh Pressure Turbine Discs AD/BR700/1\n\nOil Filter Differential Switch AD/BR700/2\n\nLP Compressor Fan Disc Cracks AD/BR700/3\n\nEngine Electronic Controller AD/BR700/4","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This instrument maintains exactly the same scope as the original Airworthiness Directives. The explicit note confirms the directives are being re-made 'in exactly the same form' — this is purely a procedural restructuring to change the legal instrument type, not an expansion of regulatory scope."},"complexity_factors":["Very short instrument (under 300 words)","Only 4 specific items in Schedule 1","No defined terms section","No cross-references to other legislation beyond the enabling regulation (subregulation 39.001(1))","Simple binary structure: revoke (a) and remake (b)","No conditional logic or exceptions","Straightforward administrative action with no substantive policy changes"],"plain_english_summary":"**What this legislation does:**\n\nThis is an official aviation safety instrument that **revokes and immediately remakes four existing Airworthiness Directives** for a specific type of aircraft engine — the Rolls-Royce Germany BR700 series turbine engines.\n\n**Who it affects:**\n\n- **Aircraft operators** who use planes with BR700 engines (commonly found on business jets like the Gulfstream V and Bombardier Global Express)\n- **Maintenance organisations** that service these engines\n- **Pilots and crew** of affected aircraft\n\n**Why it matters:**\n\nAirworthiness Directives (ADs) are **legally binding safety orders** issued when a design flaw, manufacturing defect, or wear pattern is discovered that could make an aircraft unsafe. They typically require:\n- Specific inspections\n- Repairs or replacements\n- Operational limitations\n\nThis instrument is doing **administrative housekeeping**: the four ADs listed (covering high-pressure turbine discs, oil filter switches, fan disc cracks, and engine controllers) are being formally revoked and then immediately reissued as separate, standalone legal instruments. This appears to be a **restructuring exercise** — likely to improve how these directives are organised and enforced under the Civil Aviation Safety Regulations 1998.\n\n**The key point:** The actual safety requirements in these ADs are **not changing** — the note explicitly states each directive is being \"re-made in exactly the same form\" as before. Only the legal structure is being updated."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument does not change the substantive scope of the listed Airworthiness Directives as presented here. It revokes the listed ADs and re‑issues them as separate instruments, and the Note states they are re‑made in exactly the same form as their latest published editions. Therefore, on the face of the provided text, the scope of regulatory obligations remains the same; the change is to legal form and instrument structure rather than to substantive content (see opening paragraph; Schedule 1; Note)."},"complexity_factors":["Administrative nature: the instrument performs a revocation and re‑making without substantive amendment (Note).","Single statutory hook: action is taken under one cited subregulation (subregulation 39.001(1)).","Limited number of listed items: four ADs are specified in Schedule 1.","Reliance on attached ADs and the latest published editions for substantive detail (Note) — the instrument itself contains no technical or operational requirements.","Potential procedural dependencies: effects depend on the content and enforcement of the attached ADs and the referenced subregulation, which are not reproduced here."],"plain_english_summary":"- What this instrument does, mechanically\n  - The delegate of the Civil Aviation Safety Authority (David Alan Villiers) uses authority from subregulation 39.001(1) to revoke a set of Airworthiness Directives (ADs) listed in Schedule 1 and to re‑issue each of those ADs as separate instruments. (see opening paragraph: \"acting under subregulation 39.001 (1)\"; Schedule 1)\n\n  - Which ADs are affected\n  - The four ADs listed apply to Rolls Royce Germany turbine engines, BR700 series: High Pressure Turbine Discs (AD/BR700/1); Oil Filter Differential Switch (AD/BR700/2); LP Compressor Fan Disc Cracks (AD/BR700/3); Engine Electronic Controller (AD/BR700/4). (see Schedule 1)\n\n  - What the instrument says about substance\n  - The instrument includes a Note stating that each attached AD is being re‑made in exactly the same form as in the latest published edition of the Directive. That means the text of each AD, as re‑issued, is intended to match the latest published version. (see Note)\n\n  - Who decides and who is directly identified by the instrument\n  - Decision maker: the CAFâ delegate named in the instrument (David Alan Villiers) acting under statutory authority. (see opening paragraph)\n  - Directly identified subjects: the listed ADs that relate to BR700 series Rolls Royce Germany turbine engines. The instrument therefore operates in relation to those ADs and the people or organisations to whom those ADs apply. (see Schedule 1)\n\n  - Why this matters and the practical effect\n  - Mechanically, this is an administrative re‑issuance: the listed ADs are revoked and then re‑made as separate instruments, with the declared aim that their content remain the same as the latest published editions. (see opening paragraph; Note)\n\n  - How that affects incentives, costs and compliance (source‑grounded observations)\n  - Because the Note states the re‑made ADs match the latest published editions, the instrument does not, on its face, change the substantive requirements or obligations set out in those latest published ADs. Therefore it does not, by itself, create new substantive compliance obligations or new regulatory requirements beyond what is already in the published AD versions. (see Note)\n  - The instrument reallocates legal form (revocation and separate re‑making) rather than altering substantive text; the principal administrative cost is the act of re‑issuing the ADs and any procedural effects that flow from having each AD as a separate instrument. The text provided does not specify who bears administrative costs, nor does it specify compliance measures or sanctions. (see opening paragraph; Note)\n\n  - Implementation and discretion points to note\n  - The delegate is exercising a statutory power to revoke and re‑make ADs (authority cited). The instrument does not, within the supplied text, set out operational details of enforcement, timing, or transitional arrangements; any such details would be in the attached ADs themselves or in the underlying regulation referenced as the delegate's authority. (see opening paragraph; Note)\n\n  - Net summary\n  - This is an administrative measure that revokes and then re‑issues four ADs for Rolls Royce BR700 series engines in the same form as their latest published editions. It changes the legal form of those ADs (separate instruments) without changing their stated substantive content in this text. (see opening paragraph; Schedule 1; Note)"}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-rolls-royce-germany-turbine-engines-br700-seri","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-rolls-royce-germany-turbine-engines-br700-seri/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-rolls-royce-germany-turbine-engines-br700-seri/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-rolls-royce-germany-turbine-engines-br700-seri/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-rolls-royce-germany-turbine-engines-br700-seri/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-rolls-royce-germany-turbine-engines-br700-seri/documents"}}