{"id":"F2006B08010","name":"Airworthiness Directives 2004 - Revocation and Remaking - Rolls Royce Turbine Engines - Spey Series","slug":"airworthiness-directives-2004-revocation-and-remaking-rolls-royce-turbine-engines-spey-series","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115073,"registerId":"commonwealth-F2006B08010-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 Turbine Engines - Spey 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 Turbine Engines - Spey Series\n\nAD Name AD Number\n\nGroup 'A' Component Lives - CANCELLED AD/RRT-S/1 Amdt 8\n\nGroup 'A' Component Lives - CANCELLED AD/RRT-S/2 Amdt 4\n\nStage 2 and 3 H.P. Compressor Discs - Increased Thickness Neck and AD/RRT-S/3\n\nH.P. Fuel Shut Off Valve Primary Strainer - Inspection AD/RRT-S/4 Amdt 1\n\nIn-Field Rectification of Low Power Indication - Performance Monitoring AD/RRT-S/5\n\nMalfunction of Bleed Valve Mechanism Featuring Mod. 5866 - Operational and AD/RRT-S/6\n\nAirflow Control Bleed Valve - Removal of Mod. 5866 AD/RRT-S/7\n\nCombustion Section - Primary Airscoop AD/RRT-S/8\n\nTransply Combustion Liners AD/RRT-S/9\n\nHP2 Turbine Disc Locating Sleeve AD/RRT-S/10\n\nSteel Turbine Discs AD/RRT-S/11\n\nStage 2 Low Pressure Turbine Blades - CANCELLED AD/RRT-S/12 Amdt 2\n\nLow Pressure Turbine Stage 2 NGV Seal Support AD/RRT-S/13 Amdt 1\n\nLPT Stage 2 NGV Seal Support AD/RRT-S/14\n\nStage 2 Low Pressure Turbine Blades AD/RRT-S/15","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"The instrument explicitly states it is remaking the directives 'in exactly the same form as appears in the latest published edition.' This is a pure consolidation/revocation exercise with no expansion of scope."},"complexity_factors":["Very short instrument (under 500 words)","Only 2 operative provisions (revocation and remaking)","Simple tabular schedule listing 15 directives by name and number","No defined terms section","No conditional logic or nested exceptions","Cross-references limited to a single regulation (Civil Aviation Safety Regulations 1998, subregulation 39.001(1)) and the attached schedules","Technical complexity exists in the attached directives (not reproduced in this instrument), but the instrument itself is purely procedural"],"plain_english_summary":"This instrument revokes and reissues 15 airworthiness directives for Rolls‑Royce Spey turbine engines (used in aircraft like the Fokker F28 and some military jets), carrying over exactly the same technical requirements with no substantive changes. It’s administrative housekeeping to keep legally binding safety obligations—inspections, repairs and replacements tied to compressor, fuel, bleed, combustion and turbine parts—current and enforceable, and it directly affects operators, owners and maintenance engineers."},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The instrument does not change the substantive scope or requirements of the listed ADs. It expressly revokes the listed ADs and reissues them “in exactly the same form as appears in the latest published edition” (instrument note and Schedule 1), so obligations remain unchanged while the legal instruments are re‑made for administrative/legal formality."},"complexity_factors":["Legal formality: revocation and re‑making under subregulation 39.001(1) creates a two-step administrative action rather than substantive regulatory change (source: instrument preamble).","Number of instruments: multiple ADs listed in Schedule 1 increases administrative tracking and record‑keeping burden for operators and regulators.","Technical content delegated to attached ADs: substantive compliance obligations remain in the reissued ADs (not reproduced here), so technical complexity is offloaded to those documents.","Continuity requirement: ensuring legal continuity and that the reissued ADs exactly match the latest published editions introduces procedural verification work (source: note stating identical form).","Stakeholder impact: obligations fall on private parties (engine owners, operators, maintenance organisations) who bear compliance and administrative costs of updating records."],"plain_english_summary":"This instrument, made by a CASA delegate under subregulation 39.001(1), revokes a list of Airworthiness Directives (ADs) for Rolls‑Royce Spey turbine engines and reissues each AD as a separate instrument in the same form as the latest published editions. It affects engine owners, aircraft operators and maintenance organisations who must continue to comply with the reissued ADs; the action is administrative, but requires operators to update records and rely on the reissued instruments for ongoing compliance."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-rolls-royce-turbine-engines-spey-series","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-rolls-royce-turbine-engines-spey-series/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-rolls-royce-turbine-engines-spey-series/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-rolls-royce-turbine-engines-spey-series/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-rolls-royce-turbine-engines-spey-series/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-rolls-royce-turbine-engines-spey-series/documents"}}