{"id":"F2006B08020","name":"Airworthiness Directives 2004 - Revocation and Remaking - Schweizer (Grumman) G-164 (Ag-Cat) Series Aeroplanes","slug":"airworthiness-directives-2004-revocation-and-remaking-schweizer-grumman-g-164-ag-cat-series-aeroplan","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115085,"registerId":"commonwealth-F2006B08020-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 - Schweizer (Grumman) G-164 (Ag-Cat) 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\nSchweizer (Grumman) G-164 (Ag-Cat) Series Aeroplanes\n\nAD Name AD Number\n\nSuperseded by AD/G164/7A - CANCELLED AD/G164/1\n\nHopper Load Jettison Requirement AD/G164/2 Amdt 1\n\nSpray Pump Fan Armour Plates - Modification AD/G164/3\n\nPropeller Security - Inspection AD/G164/4 Amdt 1\n\nElevator Torque Tubes - Inspection AD/G164/5 Amdt 1\n\nCarburettor Air Duct - Modification AD/G164/6\n\nPower Plant Fire Protection - Modification AD/G164/7 Amdt 2\n\nMain Landing Gear Leg - Inspection AD/G164/8 Amdt 1\n\nParking Brake Control - Modification AD/G164/9\n\nElevator Pushrod Assembly - Inspection AD/G164/10\n\nSpray Fan Brake Control - Modification AD/G164/11\n\nFuel Quantity Indicator Presentation - Inspection AD/G164/12\n\nOutboard TE Boom Support Brackets - Replace AD/G164/13\n\nElevator Control Horn Attach Bolts - Inspection and Replacement AD/G164/14\n\nRudder Main Spar AD/G164/15 Amdt 1\n\nRear Fuselage Extension - Inspection and Modification AD/G164/16 Amdt 1\n\nLower Wing Attachment Fittings - Inspection AD/G164/17\n\nAileron Bellcrank - Inspection and Modification AD/G164/18 Amdt 1\n\nFuel Shut Off Control Installation - Modification AD/G164/19\n\nFuselage Cabane Strut Wire Attach Fitting AD/G164/20\n\nElevator Pushrods AD/G164/21","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This instrument maintains exactly the same scope as the original directives. The note explicitly states each directive is being 're-made in exactly the same form as appears in the latest published edition.' This is a pure administrative consolidation with no expansion of regulatory reach."},"complexity_factors":["Single, clear purpose: revocation and remaking of existing instruments","Only one defined term used ('delegate' is implicit in the signature block)","No nested conditional logic or cross-referencing to other legislation beyond the basic enabling power (subregulation 39.001(1))","Structure is straightforward: preamble, two operative paragraphs, signature, explanatory note, and schedule table","Schedule 1 is a simple table with 21 rows and 2 columns — no complex hierarchies","No exceptions, exemptions, or transitional provisions","Length is very short (approximately 1 page of substantive content)"],"plain_english_summary":"This instrument revokes and reissues 21 existing airworthiness directives for Schweizer (Grumman) G‑164 “Ag‑Cat” agricultural aeroplanes, recreating them in the same form. It’s a legal housekeeping action that refreshes the paperwork without changing the safety requirements. Owners, operators, maintenance organisations and CASA remain bound by the same inspection, modification and repair obligations."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"No substantive change to technical scope or operator obligations. The instrument revokes and re‑issues listed ADs in the same form as their latest published editions (text states each is 'exactly the same'), so requirements are intended to remain unchanged; the action is administrative republication and separation into individual instruments."},"complexity_factors":["Administrative/legal action under subregulation 39.001(1) (authority and procedural formality).","Large number of individual ADs listed (multiple inspections, modifications and amendments to monitor).","Some ADs shown as amended or superseded, requiring checks of amendment history to confirm current operative text.","Instrument states each re‑made AD is 'exactly the same' as the latest published edition, so users must consult those attached/republished texts for substantive requirements.","Compliance burden concentrated on a defined group (G‑164 owners/operators/maintenance organisations) rather than the general public.","Limited discretion in the instrument itself (delegate takes a ministerial/administrative step rather than changing technical obligations), but operational discretion remains in how operators schedule/finance work."],"plain_english_summary":"This instrument, signed by a CASA delegate, formally revokes a list of Schweizer (Grumman) G‑164 (Ag‑Cat) airworthiness directives and re‑makes each one as a separate, identical instrument. It affects owners, operators and maintenance providers of G‑164 aeroplanes by preserving existing inspection, modification and reporting obligations. The change is administrative: the technical requirements remain as published. Who decides: CASA (delegate). Who pays: aircraft owners/operators who must carry out or fund the required work and record compliance."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-schweizer-grumman-g-164-ag-cat-series-aeroplan","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-schweizer-grumman-g-164-ag-cat-series-aeroplan/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-schweizer-grumman-g-164-ag-cat-series-aeroplan/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-schweizer-grumman-g-164-ag-cat-series-aeroplan/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-schweizer-grumman-g-164-ag-cat-series-aeroplan/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-schweizer-grumman-g-164-ag-cat-series-aeroplan/documents"}}