{"id":"F2006B05549","name":"AD/PA-25/11 Amdt 2 - Hopper Modification - Dump Requirement","slug":"ad-pa-25-11-amdt-2-hopper-modification-dump-requirement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":46503,"registerId":"commonwealth-F2006B05549-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-25/11 Amdt 2 - Hopper Modification - Dump 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)  Piper PA-25 (Pawnee) Series Aeroplanes\n\n \n\nAD/PA-25/11\n\nAmdt 2\n\n\nHopper Modification - Dump Requirement 5/89\n\n \n\nApplicability: Models PA-25-235 and variants of that model and PA-25-260 equipped for dusting operations.\n\n \n\nRequirement: Modify hopper installation to comply with the requirements of Civil Aviation Order Section 101.17 Issue 2 para 5.15 and 5.17.\n\n \n\nCompliance: Before 1 September 1971.\n\n \n\nNote: Compliance with the preceding issue of this directive satisfies compliance with this issue.\n\n \n\nBackground: Amendment 2 references latest issue of document and requirement removes superseded alternate requirement document.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n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","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1409},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"Amendment 2 is purely administrative. It updates the reference to the latest issue of the Civil Aviation Order and removes mention of superseded alternate requirement documents. The substantive scope—mandating hopper dump capability modifications for agricultural PA-25 aircraft—remains identical to the original directive."},"complexity_factors":["Single, unambiguous requirement with no conditional logic","No defined terms or interpretation section","Extremely short length (approximately 150 words)","Clear applicability limited to two specific aircraft models","No exceptions, nested clauses, or cross-references to other legislation beyond one Civil Aviation Order citation"],"plain_english_summary":"This directive requires owners/operators of Piper PA-25 Pawnee series agricultural aircraft (including PA-25-235 and PA-25-260 dusting variants) to modify the hopper so the pilot can rapidly jettison the chemical load in an emergency. It ensures a functioning emergency dump system to reduce weight and improve survivability after failures like engine loss. Required compliance was before 1 September 1971; previously compliant operators need take no further action."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-25-11-amdt-2-hopper-modification-dump-requirement","history":"/api/acts/ad-pa-25-11-amdt-2-hopper-modification-dump-requirement/history","analysis":"/api/acts/ad-pa-25-11-amdt-2-hopper-modification-dump-requirement/analysis","conflicts":"/api/acts/ad-pa-25-11-amdt-2-hopper-modification-dump-requirement/conflicts","importantCases":"/api/acts/ad-pa-25-11-amdt-2-hopper-modification-dump-requirement/important-cases","documents":"/api/acts/ad-pa-25-11-amdt-2-hopper-modification-dump-requirement/documents"}}