{"id":"F2006B07821","name":"Airworthiness Directives 2004 - Revocation and Remaking - Consolidated Aeronautics Colonial and LA-4 Series Aeroplanes","slug":"airworthiness-directives-2004-revocation-and-remaking-consolidated-aeronautics-colonial-and-la-4-ser","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50711,"registerId":"commonwealth-F2006B07821-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 - Consolidated Aeronautics Colonial and LA-4 Series Aeroplanes","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\nConsolidated Aeronautics, Colonial and LA-4 Series Aeroplanes\n\nAD Name AD Number\n\nNose Landing Gear Drag Strut - Inspection AD/LA-4/1\n\nFuel Line - Replacement AD/LA-4/2\n\nFlap Pushrod Bearings - Inspection and Replacement AD/LA-4/3 Amdt 1\n\nFuel Filter - Installation AD/LA-4/4\n\nBattery Relay - Installation AD/LA-4/5\n\nFront Seat Restraint Installation - Modification AD/LA-4/6\n\nHull Frame Station 97 - Inspection and Modification AD/LA-4/7\n\nFuel Cell Capacity and Security Inspection AD/LA-4/8\n\nRudder Bellcrank - Inspection AD/LA-4/9\n\nAircraft Structure - Inspection for Corrosion AD/LA-4/10 Amdt 2\n\nEngine Mount Upper Side Straps - Inspection AD/LA-4/11\n\nFuel Pressure Restrictor Fitting - Inspection AD/LA-4/12\n\nWing Rear Spar Fittings - Inspection AD/LA-4/13\n\nTrim Actuating Cylinder Bracket - Inspection - CANCELLED AD/LA-4/14\n\nAuxiliary Fuel System - Placard AD/LA-4/15\n\nFuel Filter - Inspection AD/LA-4/16\n\nFuel Cell - Inspection AD/LA-4/17\n\nTrim Actuating Cylinder Bracket - Inspection AD/LA-4/18\n\nAnchor Light and Bilge Pump Wiring - Modification AD/LA-4/19\n\nMain Landing Gear - Rocker Castings P/N 2-4113-1 - Inspection and AD/LA-4/20\n\nAuxiliary Fuel Tank Lines - Inspection and Replacement, Modification AD/LA-4/21\n\nEngine Mount Tie Rod Ends AD/LA-4/22\n\nWing Fitting Carry Through Structure AD/LA-4/23\n\nAutomatic Flight Control System AD/LA-4/24\n\nHorizontal and Vertical Stabiliser Attachment Fitting AD/LA-4/25\n\nWing Upper and Lower Spar Doublers AD/LA-4/26 Amdt 1\n\nWing Spar Doublers and Spar Cap Angles AD/LA-4/27","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"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"No substantive change to scope or obligations. The instrument expressly revokes prior ADs and re-issues them in the same form as the latest published editions, so existing compliance requirements, affected aircraft and technical measures remain unchanged; the action is an administrative re-issuance (see Note and Schedule 1)."},"complexity_factors":["Administrative legal action only: revocation and re-making of existing ADs without substantive change (see Note: “re-made in exactly the same form as appears in the latest published edition”).","Number of instruments involved: 27 ADs listed in Schedule 1 increases coordination and tracking effort for regulator and industry.","Technical variety: ADs cover many distinct aircraft systems (landing gear, fuel systems, structural fittings, controls, electrical, etc.), so compliance actions are operationally diverse and specialised (see Schedule 1 titles).","Delegated authority reference: instrument is made under subregulation 39.001(1), so legal validity depends on correct delegation and procedural compliance.","Compliance burden concentration: costs, labour and downtime fall on aircraft owners/operators and maintenance providers who must follow each AD’s technical requirements.","Document-control complexity: multiple amendments referenced (e.g. Amdt 1, Amdt 2) require careful version management by operators and CASA."],"plain_english_summary":"This instrument revokes a list of Airworthiness Directives (ADs) for Consolidated Aeronautics Colonial and LA-4 series aeroplanes and re-issues each AD as a separate instrument in the same form as the latest published edition, under the CASA delegate’s power in subregulation 39.001(1). It affects owners, operators and maintenance organisations for those aeroplanes because the ADs set mandatory inspections, modifications and other compliance obligations that they must carry out and pay for, while CASA controls the formal issuance and recordkeeping."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is purely an administrative reorganization. The document explicitly states that each Airworthiness Directive is being re-made 'in exactly the same form as appears in the latest published edition of the Directive.' The scope remains identical to the original ADs — no expansion of regulatory reach, no new aircraft types added, no additional safety requirements imposed."},"complexity_factors":["Single, clear purpose: revocation and remaking of existing instruments","No defined terms section — relies on external understanding of 'Airworthiness Directive' and aircraft terminology","Minimal conditional logic — straightforward 'revoke and remake' structure","Cross-references limited to Schedule 1 and attached documents (which are not fully reproduced)","Short length (approximately 1 page of substantive content plus schedule table)","Administrative mechanism is simple: subregulation 39.001(1) of CASR 1998 provides clear authority","Schedule format presents information in tabular form rather than dense legislative prose"],"plain_english_summary":"This CASA order revokes and reissues 27 Airworthiness Directives for Consolidated Aeronautics Colonial and LA-4 series seaplanes/amphibious aeroplanes, re-making each AD as a separate legal instrument. The ADs themselves — covering structural, fuel, flight-control, electrical and restraint safety items — remain unchanged.\n\nIt affects owners, operators and maintenance engineers: compliance is legally required to keep affected aircraft airworthy. This is an administrative reissue, not a change to safety requirements."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-consolidated-aeronautics-colonial-and-la-4-ser","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-consolidated-aeronautics-colonial-and-la-4-ser/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-consolidated-aeronautics-colonial-and-la-4-ser/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-consolidated-aeronautics-colonial-and-la-4-ser/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-consolidated-aeronautics-colonial-and-la-4-ser/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-consolidated-aeronautics-colonial-and-la-4-ser/documents"}}