{"id":"F2006B10105","name":"AD/G164/2 Amdt 1 - Hopper Load Jettison Requirement","slug":"ad-g164-2-amdt-1-hopper-load-jettison-requirement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55613,"registerId":"commonwealth-F2006B10105-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/G164/2 Amdt 1 - Hopper Load Jettison Requirement","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Schweizer (Grumman) G-164 (Ag-Cat) Series Aeroplanes\n\n \n\n# AD/G164/2\n\nAmdt 1\n\nApplicability: All models.\n\n# Hopper Load Jettison Requirement 5/89\n\n \n\nRequirement: Modify the hopper installation to comply with the “Jettisoning of Agricultural Load” requirement of Civil Aviation Order, Section 101.17 Issue 2.\n\n \n\nCompliance: Forthwith.\n\n \n\nBackground: Amendment 1 references the current Requirement document.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1241},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"Amendment 1 is purely administrative — it updates the reference to the current version of Civil Aviation Order 101.17 Issue 2. It does not expand the applicability beyond all G-164 models or alter the substantive safety requirement regarding hopper jettison capability."},"complexity_factors":["Single, unambiguous operational requirement","No defined terms or interpretation sections","Only one external reference (Civil Aviation Order 101.17)","Immediate compliance with no conditional triggers or exceptions"],"plain_english_summary":"This safety directive orders owners/operators of Schweizer (Grumman) G‑164 “Ag‑Cat” agricultural biplanes to fit the hopper with a jettison capability so the pilot can rapidly dump the load in flight. The modification must comply with Civil Aviation Order 101.17 Issue 2, and compliance is required forthwith — the aircraft must not fly until modified."}},"importantCases":[],"_links":{"self":"/api/acts/ad-g164-2-amdt-1-hopper-load-jettison-requirement","history":"/api/acts/ad-g164-2-amdt-1-hopper-load-jettison-requirement/history","analysis":"/api/acts/ad-g164-2-amdt-1-hopper-load-jettison-requirement/analysis","conflicts":"/api/acts/ad-g164-2-amdt-1-hopper-load-jettison-requirement/conflicts","importantCases":"/api/acts/ad-g164-2-amdt-1-hopper-load-jettison-requirement/important-cases","documents":"/api/acts/ad-g164-2-amdt-1-hopper-load-jettison-requirement/documents"}}