{"id":"F2006B08006","name":"Airworthiness Directives 2004 - Revocation and Remaking - Rolls Royce (Blackburn) Engines - Cirrus Series","slug":"airworthiness-directives-2004-revocation-and-remaking-rolls-royce-blackburn-engines-cirrus-series","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115065,"registerId":"commonwealth-F2006B08006-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 (Blackburn) Engines - Cirrus Series","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 Rolls Royce (Blackburn) Engines - Cirrus Series\n\n AD Name AD Number\n\n Connecting Rod - Modification AD/RRP-C/1\n\n Connecting Rod - Modification AD/RRP-C/2\n\n Crankshaft - Inspection AD/RRP-C/3\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This instrument performs a straightforward administrative remaking of existing airworthiness directives. The scope remains identical to the original directives — the note explicitly states each directive is being re-made in exactly the same form as the latest published edition. No expansion of scope has occurred."},"complexity_factors":["Very short instrument (under 300 words)","Only 3 defined items in Schedule 1 (the three AD numbers)","Simple binary structure: revoke old instruments, make new ones","No nested conditional logic or exceptions","Single operative provision with straightforward (a) and (b) subparagraphs","Note clarifies no substantive change to technical content"],"plain_english_summary":"This is a technical aviation safety instrument issued by the Civil Aviation Safety Authority (CASA) in December 2004. It deals with **airworthiness directives** — official orders that require aircraft owners or operators to fix specific safety problems.\n\n**What it does:**\n- **Revokes** (cancels) three old airworthiness directives relating to Rolls Royce (Blackburn) Cirrus series aircraft engines\n- **Remakes** those same three directives as brand new, separate legal instruments\n\n**The three directives cover:**\n- **AD/RRP-C/1** — Modifications to connecting rods (engine parts that link pistons to the crankshaft)\n- **AD/RRP-C/2** — Another modification to connecting rods\n- **AD/RRP-C/3** — Inspection of crankshafts (the rotating shaft that converts piston motion into rotational power)\n\n**Who it affects:**\n- Owners and operators of aircraft using Rolls Royce (Blackburn) Cirrus series engines\n- Maintenance organisations working on these engines\n\n**Why it matters:**\nAirworthiness directives are legally enforceable safety requirements. This instrument ensures these engine safety rules remain current and valid under the Civil Aviation Safety Regulations 1998. The \"remaking\" process keeps the technical requirements exactly the same — it's essentially a legal housekeeping exercise to ensure the directives continue to have proper legal force under current regulations, rather than changing any technical requirements."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"This instrument does not change the substantive scope or content of the listed Airworthiness Directives. It revokes the listed ADs and re‑issues each as a separate instrument in exactly the same form as the latest published editions (operative clause; Schedule 1; Note). The change is administrative (form and instrument structure), not substantive."},"complexity_factors":["Instrument is short and procedural (revocation and re‑making) rather than introducing novel substantive rules","Clear statutory authority cited (subregulation 39.001(1)) reduces legal ambiguity","Effect on substantive obligations is explicitly nil because the re‑made ADs are identical to the latest published editions (Note)","Requires administrative interaction with multiple existing AD documents (Schedule 1 lists three separate ADs)","Possible minor administrative complexity in re-issuing and re-registering multiple separate instruments"],"plain_english_summary":"This instrument revokes three Airworthiness Directives for Rolls Royce (Blackburn) Cirrus engines and re-issues each as a separate instrument under delegated CASA authority. \n\nIt is an administrative re-making only — each AD is reproduced in the same form as the latest published edition — so it changes the legal form and record-keeping but not the substantive compliance obligations or costs."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-rolls-royce-blackburn-engines-cirrus-series","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-rolls-royce-blackburn-engines-cirrus-series/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-rolls-royce-blackburn-engines-cirrus-series/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-rolls-royce-blackburn-engines-cirrus-series/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-rolls-royce-blackburn-engines-cirrus-series/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-rolls-royce-blackburn-engines-cirrus-series/documents"}}