{"id":"F2006B08307","name":"AD/CESSNA 400/2 - Flap Switch Insulation - Modification","slug":"ad-cessna-400-2-flap-switch-insulation-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115707,"registerId":"commonwealth-F2006B08307-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 400/2 - Flap Switch Insulation - 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)  Cessna 400 Series Aeroplanes\n\n \n\nAD/CESSNA 400/2 Flap Switch Insulation - Modification 1/67\n\nApplicability: All model 411 with S/Nos. below 411-0226. Document:  1. Cessna SL 66-56; or\n\n2. DCA/CESSNA 411/2. Compliance: Before 1 September 1971.\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":1578},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This remains a narrow, technical maintenance mandate limited to specific Cessna 411 aircraft and has not expanded beyond its original safety purpose."},"complexity_factors":["Single operative requirement with no subsections or conditional clauses","No defined terms or interpretation section","Simple applicability criteria based solely on aircraft model and serial number range","Absolute compliance date with no exceptions or extensions described"],"plain_english_summary":"**What this is:** A mandatory safety direction (called an Airworthiness Directive) issued by the Civil Aviation Safety Authority.\n\n**What it requires:** Owners of certain Cessna aircraft must modify the insulation around the flap switches to prevent electrical hazards.\n\n**Who is affected:** Anyone who owns or operates a **Cessna 411** aeroplane with a serial number below **411-0226**.\n\n**Deadline:** The work had to be finished before **1 September 1971**.\n\n**How to comply:** Follow the instructions in either **Cessna Service Letter 66-56** or the older **DCA/CESSNA 411/2** document, which detail exactly how to install the new insulation.\n\n**Why it matters:** Faulty insulation on flap switches can cause electrical shorts or fires. This rule ensures specific high-risk aircraft were fixed before the deadline."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-400-2-flap-switch-insulation-modification","history":"/api/acts/ad-cessna-400-2-flap-switch-insulation-modification/history","analysis":"/api/acts/ad-cessna-400-2-flap-switch-insulation-modification/analysis","conflicts":"/api/acts/ad-cessna-400-2-flap-switch-insulation-modification/conflicts","importantCases":"/api/acts/ad-cessna-400-2-flap-switch-insulation-modification/important-cases","documents":"/api/acts/ad-cessna-400-2-flap-switch-insulation-modification/documents"}}