{"id":"F2006B07715","name":"Airworthiness Directives 2004 - Revocation and Remaking - Airtractor AT-300 400 and 500 Series Aeroplanes","slug":"airworthiness-directives-2004-revocation-and-remaking-airtractor-at-300-400-and-500-series-aeroplane","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50447,"registerId":"commonwealth-F2006B07715-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 - Airtractor AT-300 400 and 500 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\nAirtractor AT-300, 400 and 500 Series Aeroplanes\n\nAD Name AD Number\n\nWing Main Spar - Aluminium Spar Caps and Centre Section Splice Blocks - AD/AT/1 Amdt 1\n\nPilot Safety Harness - CANCELLED AD/AT/2\n\nLanding Gear AD/AT/3 Amdt 5\n\nRudder Hinges - Inspection AD/AT/4\n\nEngine Mount Ring on Vibro-Damp Mount Assembly - Inspection AD/AT/5\n\nFuselage Fittings - Vertical Fin Front Spar Attachments - Inspection and AD/AT/6 Amdt 1\n\nHorizontal Stabiliser Eyebolts AD/AT/7\n\nAileron Control - Push-Pull Rods AD/AT/8 Amdt 1\n\nControl Column Yoke Bolt AD/AT/9 Amdt 2\n\nAircraft Wiring AD/AT/10\n\nWing Main Spar - Steel Spar Caps and Centre Section Splice Blocks - AD/AT/11\n\nHopper Dump Handle - CANCELLED AD/AT/12\n\nWing Spar Cap Corrosion AD/AT/13\n\nNever Exceed Airspeed Limit AD/AT/14\n\nWing Attachment Tube Bushings AD/AT/15 Amdt 1\n\nWing Attachment Angles - CANCELLED AD/AT/16\n\nVertical Fin Front and Rear Spars AD/AT/17 Amdt 3\n\nParking Brake Valve AD/AT/18\n\nFlap System Overrun Prevention AD/AT/19 Amdt 1\n\nWing Lower Spar Cap Safe Life AD/AT/20 Amdt 3\n\nWing Lower Spar Cap Safe Life - 2 AD/AT/21 Amdt 1\n\nWing Centreline Splice Joint AD/AT/22 Amdt 1\n\nAft Fuselage Structure Upper Longeron and Upper Diagonal Tube AD/AT/23 Amdt 1\n\nOverturn Skid Plate AD/AT/24\n\nVertical Fin Front Spar Fitting AD/AT/25","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":4,"scope_assessment":{"changed":false,"description":"The instrument does not change substantive scope or technical requirements: it revokes the listed ADs and remakes them in exactly the same form as the latest published editions (see note and Schedule 1). The change is procedural—reissuing the same directives as separate instruments—so obligations on owners/operators remain the same, though they must track the new legal instruments."},"complexity_factors":["Multiple ADs listed (25 entries in Schedule 1) including a mix of amended, cancelled, and original ADs","Legal action combines revocation and immediate remaking of instruments, requiring administrative precision","Reference to enabling power (subregulation 39.001(1)) concentrates decision authority in the CASA delegate","Attached remade ADs are separate instruments and must be located/tracked by operators (administrative burden)","Note states remade ADs are identical to latest published editions — potential for confusion between publication and instrument status","Presence of amendment identifiers (e.g. Amdt 1, Amdt 5) increases bookkeeping and compliance tracking demands"],"plain_english_summary":"This instrument revokes a list of Airworthiness Directives (ADs) for Airtractor AT-300, 400 and 500 series aeroplanes and remakes each listed AD as a separate, identical instrument. It is made by a Civil Aviation Safety Authority delegate under subregulation 39.001(1). Aircraft owners, operators and maintenance organisations must comply with the remade ADs listed in Schedule 1 (two previously listed ADs are cancelled). The note states the remade ADs are the same as the latest published editions."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a pure administrative remaking exercise. The note explicitly states each directive is being re-made 'in exactly the same form as appears in the latest published edition.' No expansion of scope; purely procedural refresh to maintain legal validity."},"complexity_factors":["Very short document (approximately 1 page of substantive content)","Simple binary structure: revocation + remaking","No defined terms section","No conditional logic or nested exceptions","Cross-references limited to Schedule 1 table and subregulation 39.001(1)","Straightforward administrative mechanism with no substantive policy changes"],"plain_english_summary":"This CASA order refreshes the legal force of safety rules for Airtractor AT-300/400/500 agricultural aeroplanes by revoking 25 existing Airworthiness Directives and re‑making them in the same form so they remain current and enforceable. It’s a housekeeping step that affects owners, operators and maintenance engineers who must comply with the directives.\n\nThree directives (AD/AT/2, AD/AT/12 and AD/AT/16) are cancelled outright."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-airtractor-at-300-400-and-500-series-aeroplane","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-airtractor-at-300-400-and-500-series-aeroplane/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-airtractor-at-300-400-and-500-series-aeroplane/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-airtractor-at-300-400-and-500-series-aeroplane/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-airtractor-at-300-400-and-500-series-aeroplane/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-airtractor-at-300-400-and-500-series-aeroplane/documents"}}