{"id":"F2006B07881","name":"Airworthiness Directives 2004 - Revocation and Remaking - General Electric Turbine Engines - CF34 Series","slug":"airworthiness-directives-2004-revocation-and-remaking-general-electric-turbine-engines-cf34-series","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50876,"registerId":"commonwealth-F2006B07881-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 - General Electric Turbine Engines - CF34 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\nGeneral Electric Turbine Engines - CF34 Series\n\nAD Name AD Number\n\nLife Limits - Engine Rotating Parts - CANCELLED AD/CF34/1 Amdt 6\n\nFuel Control Bypass Valve AD/CF34/2\n\nMain Fuel Control - CANCELLED AD/CF34/3\n\nMain Fuel Control AD/CF34/4 Amdt 1\n\nFan Disk AD/CF34/5\n\nLife Limited Rotating Engine Parts AD/CF34/6 Amdt 2\n\nNo.5 Bearing Rotating Air Seal AD/CF34/7\n\nB Sump Screen AD/CF34/8","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This instrument performs exactly the function described in its title — revoking and remaking Airworthiness Directives. There is no scope creep; it is purely administrative reorganization of existing safety requirements into separate instruments."},"complexity_factors":["Very short instrument (under 500 words)","Only 8 items in schedule, presented in simple table format","Single operative provision with two straightforward actions (revoke and remake)","No defined terms section","No cross-references to other legislation beyond the enabling regulation (subregulation 39.001(1))","Simple conditional logic (if listed in Schedule 1, then revoke and remake)","Note clarifies that technical content is unchanged — no substantive interpretation required"],"plain_english_summary":"This is an official aviation safety instrument that **revokes and remakes** eight technical safety rules (called **Airworthiness Directives**) for a specific type of aircraft engine.\n\n**What it does:**\n- **Revokes** (cancels) the old versions of eight safety directives for General Electric CF34 turbine engines — these are jet engines commonly used in regional aircraft like the Bombardier CRJ series and Embraer E-Jets.\n- **Remakes** them as **separate, standalone legal instruments** — essentially reissuing them in a new format while keeping the technical content exactly the same.\n\n**Who it affects:**\n- Airlines and operators flying aircraft with CF34 engines\n- Aircraft maintenance engineers and organisations\n- Owners of affected aircraft\n\n**Why it matters:**\nAirworthiness Directives are **legally binding safety orders**. They require specific inspections, repairs, or part replacements to prevent engine failures. This instrument doesn't change any safety requirements — it's an **administrative housekeeping exercise** to reorganise how these rules are structured legally. Two of the directives are marked \"CANCELLED\" (AD/CF34/1 Amdt 6 and AD/CF34/3), meaning those specific safety requirements are being discontinued entirely, while the others continue in force as separate instruments.\n\n**Key takeaway:** If you operate or maintain CF34 engines, your compliance obligations stay the same (except for the two cancelled directives), but the legal documents you reference now have a different administrative status."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument does not change substantive requirements. It revokes listed ADs and re‑issues them in the same form as their latest published editions (note in instrument), with some prior ADs recorded as cancelled; the practical regulatory obligations on operators remain the same."},"complexity_factors":["Administrative nature: revocation and re‑making of existing ADs without substantive change reduces legal complexity.","Multiple instruments listed in Schedule 1 (several AD numbers, some marked \"CANCELLED\" or with amendments), requiring accurate cross‑referencing to current ADs.","Authority relies on a single enabling provision (subregulation 39.001(1)), so discretion and legal basis are narrowly defined.","Implementation requires attachment and publication of each re‑made AD to ensure continued enforceability and clarity for operators.","Potential for compliance‑tracking confusion for operators and maintainers due to cancellation and amendment notations in the Schedule."],"plain_english_summary":"This instrument formally revokes a list of Airworthiness Directives (ADs) for General Electric CF34 turbine engines and re‑issues each as a separate, identical instrument in the form of the latest published edition. It affects aircraft operators, maintenance organisations and the Civil Aviation Safety Authority by preserving existing mandatory engine maintenance and safety requirements; operators remain responsible for complying with the re‑issued ADs, made under subregulation 39.001(1)."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-general-electric-turbine-engines-cf34-series","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-general-electric-turbine-engines-cf34-series/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-general-electric-turbine-engines-cf34-series/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-general-electric-turbine-engines-cf34-series/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-general-electric-turbine-engines-cf34-series/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-general-electric-turbine-engines-cf34-series/documents"}}