{"id":"F2006B07815","name":"Airworthiness Directives 2004 - Revocation and Remaking - CFM International Turbine Engines - CFM56 Series","slug":"airworthiness-directives-2004-revocation-and-remaking-cfm-international-turbine-engines-cfm56-series","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50691,"registerId":"commonwealth-F2006B07815-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 - CFM International Turbine Engines - CFM56 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\nCFM International Turbine Engines - CFM56 Series\n\nAD Name AD Number\n\nTransfer Gearbox Oil Distributor and Spirolock AD/CFM56/1 Amdt 1\n\nRotating Component Life Limits - CANCELLED AD/CFM56/2\n\nNumber Three Bearing AD/CFM56/3 Amdt 1\n\nGarrett Air Turbine Starter - Improved Clutch AD/CFM56/4\n\nHigh Pressure Compressor 1-2 Spool AD/CFM56/5\n\nFan Blade AD/CFM56/6\n\nFan Disk Inspection AD/CFM56/7 Amdt 3\n\nAccessory and Transfer Gearbox Replacement - CANCELLED AD/CFM56/8 Amdt 2\n\nHPTR Fan Disk Inspection AD/CFM56/9\n\nStage 1-2 Spool HPC and No.3 Bearing Aft Stationary Air/Oil Seal AD/CFM56/10 Amdt 1\n\nAccessory and Transfer Gearbox Replacement AD/CFM56/11\n\nAccessory and Transfer Gearbox Replacement AD/CFM56/12\n\nAccessory Gear Box - Starter Gear Replacement AD/CFM56/13\n\nFuel Filter Cover Attachment Inspection AD/CFM56/14 Amdt 1\n\nFuel Filter Cover Attachment Inspection AD/CFM56/15 Amdt 1\n\nHigh Pressure Turbine Rotor - Inspection AD/CFM56/16 Amdt 1\n\nInspection of Critical Life-limited Rotating Engine Components - CANCELLED AD/CFM56/17 Amdt 1\n\nEngine Starter AD/CFM56/18\n\nTorque Fittings of PS3 Pressure Line AD/CFM56/19\n\nRotating Engine Components - Additional Inspection AD/CFM56/20\n\nStage 2 and 3 LPT Nozzle Segments - Replacement AD/CFM56/21\n\nEGT Harnesses and EGT Couplings AD/CFM56/22\n\nEngine Main Fuel Pumps AD/CFM56/23","sortOrder":0}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument explicitly states it is re-making the directives 'in exactly the same form as appears in the latest published edition.' This is a pure administrative renewal with no expansion of scope. The three cancelled directives actually narrow the scope slightly by removing obsolete requirements."},"complexity_factors":["Very short instrument (under 500 words)","No defined terms section — relies on external understanding of 'Airworthiness Directive' and engine part names","Simple binary structure: revoke (a) and make (b)","Schedule 1 is a straightforward table with 23 rows and 3 columns","No conditional logic, exceptions, or cross-references to other legislation beyond the enabling regulation (Civil Aviation Safety Regulations 1998, subregulation 39.001(1))","Content is procedural/administrative rather than substantive — the actual technical requirements are contained in attached documents not reproduced in the instrument itself"],"plain_english_summary":"This instrument revokes and re‑issues 23 existing airworthiness directives for CFM56 series engines, reproducing them unchanged so they remain legally current and enforceable. It’s a housekeeping move by CASA to keep safety orders valid without altering requirements.\n\nIt affects airlines, operators and maintenance organisations using CFM56‑powered aircraft (e.g., 737/A320 families). Three of the 23 directives are cancelled and not re‑made, removing those particular requirements."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"No substantive scope change. The instrument expressly revokes listed ADs and remakes them “in exactly the same form as appears in the latest published edition of the Directive,” so requirements remain materially unchanged; the measure is administrative re-issuance rather than a change in regulatory obligations."},"complexity_factors":["Procedural administrative action (revocation and re-making) rather than substantive rule change","Multiple ADs affected (over twenty listed), some marked as amended or cancelled, increasing transactional steps","Reference to regulatory power: action taken under subregulation 39.001(1) of the Civil Aviation Safety Regulations 1998","Substantive requirements are not included in this instrument; one must consult each attached AD for operational detail","Potential administrative burden on operators and maintenance organisations to replace records and ensure continuing compliance"],"plain_english_summary":"This instrument revokes a listed set of Airworthiness Directives (ADs) for CFM56-series turbine engines and re-issues each one as a separate AD in the same form as their latest published editions. The CASA delegate (acting under subregulation 39.001(1)) authorises the administrative replacement. Aircraft operators, engine owners and maintenance organisations must continue to follow the re-issued ADs and bear any compliance or administrative costs. Mechanically, it replaces existing instruments without changing their substantive requirements."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cfm-international-turbine-engines-cfm56-series","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cfm-international-turbine-engines-cfm56-series/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cfm-international-turbine-engines-cfm56-series/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cfm-international-turbine-engines-cfm56-series/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cfm-international-turbine-engines-cfm56-series/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cfm-international-turbine-engines-cfm56-series/documents"}}