{"id":"F2006B05731","name":"AD/PA-31/26 Amdt 1 - Uncoordinated Manoeuvres - Warning Placard","slug":"ad-pa-31-26-amdt-1-uncoordinated-manoeuvres-warning-placard","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135535,"registerId":"commonwealth-F2006B05731-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-31/26 Amdt 1 - Uncoordinated Manoeuvres - Warning Placard","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-31 Series Aeroplanes\n\n \n\nAD/PA-31/26\n\nAmdt 1\n\n\nUncoordinated Manoeuvres - Warning Placard 11/75\n\n \n\nApplicability: Model PA-31 with S/Nos. 31-2 to 31-7300923, 31-7300925, 31-7300927, 31- 7300929 and 31-7300931. Model PA-31P with S/Nos. 31P-1 to 31P-730015.\n\n \n\nDocument: Piper SB No. 456A.\n\n \n\nCompliance: Within 100 hours time in service after 31 July 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","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1907},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment maintains the original narrow scope focused solely on requiring warning placards for uncoordinated manoeuvres in the specified Piper aircraft models. The applicability and safety objective remain unchanged from the original directive."},"complexity_factors":["Extremely short text (under 150 words)","Single, clear compliance action (install placard per external standard)","Applicability limited to specific manufacturer serial number ranges","No conditional provisions, exceptions, or nested definitions"],"plain_english_summary":"This directive mandates that owners of specific Piper PA-31 aircraft install a cockpit warning placard about **uncoordinated manoeuvres** (turning without proper rudder input, which can cause dangerous stalls or spins).\n\n**Who it affects:**\n- Owners of Piper PA-31 aeroplanes with serial numbers 31-2 through 31-7300923, plus serials 31-7300925, 31-7300927, 31-7300929, and 31-7300931\n- Owners of Piper PA-31P aeroplanes with serial numbers 31P-1 through 31P-730015\n\n**What must be done:**\nInstall a warning placard in the cockpit following Piper Service Bulletin No. 456A. This must be completed within 100 hours of flying time after 31 July 1975.\n\n**Why it matters:**\nThe placard warns pilots against making uncoordinated turns, which can lead to unexpected stalls at low altitude. This prevents accidents by ensuring pilots are reminded of proper flying technique."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-31-26-amdt-1-uncoordinated-manoeuvres-warning-placard","history":"/api/acts/ad-pa-31-26-amdt-1-uncoordinated-manoeuvres-warning-placard/history","analysis":"/api/acts/ad-pa-31-26-amdt-1-uncoordinated-manoeuvres-warning-placard/analysis","conflicts":"/api/acts/ad-pa-31-26-amdt-1-uncoordinated-manoeuvres-warning-placard/conflicts","importantCases":"/api/acts/ad-pa-31-26-amdt-1-uncoordinated-manoeuvres-warning-placard/important-cases","documents":"/api/acts/ad-pa-31-26-amdt-1-uncoordinated-manoeuvres-warning-placard/documents"}}