{"id":"F2006B05927","name":"AD/PA-36/10 - Spray Pump Windmill - Modification","slug":"ad-pa-36-10-spray-pump-windmill-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":136012,"registerId":"commonwealth-F2006B05927-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-36/10 - Spray Pump Windmill - Modification","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-36 (Pawnee Brave) Series Aeroplanes\n\n \n\nAD/PA-36/10 Spray Pump Windmill - Modification 1/76\n\nApplicability: All model PA-36 with S/Nos. 36-7360001 to 36-7560028, 36-7560030 to 36-\n\n7560033, 36-7560036 to 36-7560041 with Agrinautics liquid dispersal equipment installed.\n\n \n\nDocument: Piper SB No. 467.\n\n \n\nCompliance: Before further flight after 12 December 1975.\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\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1806},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This airworthiness directive remains precisely targeted at its original technical purpose: correcting a specific mechanical defect in the spray pump windmill of affected agricultural aircraft. No expansion of scope or regulatory creep is evident."},"complexity_factors":["Single, unambiguous compliance action (one modification)","No defined terms or interpretation sections","Minimal conditional logic (simple serial number ranges)","Only one external reference (manufacturer's Service Bulletin)","Total text under 150 words with clear structure"],"plain_english_summary":"**What this is:** A mandatory safety fix for specific agricultural aircraft—the Piper PA-36 \"Pawnee Brave\" series.\n\n**Who it affects:** Owners and operators of PA-36 aircraft with serial numbers from 36-7360001 to 36-7560041 (with a few specific gaps), **but only if** the aircraft has Agrinautics spray equipment installed for crop-dusting or firefighting.\n\n**What you must do:** Modify the **spray pump windmill** (the small turbine that powers the chemical pump) according to Piper Service Bulletin No. 467. This must be done before the aircraft flies again after 12 December 1975.\n\n**Why it matters:** The windmill could fail or detach in flight, which risks damage to the aircraft or loss of control during low-level spraying operations. This directive ensures the mechanical fix is applied to prevent accidents."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-36-10-spray-pump-windmill-modification","history":"/api/acts/ad-pa-36-10-spray-pump-windmill-modification/history","analysis":"/api/acts/ad-pa-36-10-spray-pump-windmill-modification/analysis","conflicts":"/api/acts/ad-pa-36-10-spray-pump-windmill-modification/conflicts","importantCases":"/api/acts/ad-pa-36-10-spray-pump-windmill-modification/important-cases","documents":"/api/acts/ad-pa-36-10-spray-pump-windmill-modification/documents"}}