{"id":"F2006B05030","name":"AD/CESSNA 177/8 - Control Systems","slug":"ad-cessna-177-8-control-systems","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44940,"registerId":"commonwealth-F2006B05030-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 177/8 - Control Systems","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 177 Series Aeroplanes\n\n \n\nAD/CESSNA 177/8 Control Systems 4/70\n\nApplicability: All models with S/Nos. 17701354 to 17701426. Requirement:  Action in accordance with Cessna SL SE69-28. Compliance:               Within 100 hours time in service after 29 April 1970.\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":1226},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a narrow, technical directive issued in 1970 targeting a specific control system defect in a limited production run of aircraft. It remains precisely scoped to its original safety purpose."},"complexity_factors":["Single external reference to manufacturer service letter (Cessna SL SE69-28)","Narrow applicability limited to specific serial number range","Simple conditional logic: one deadline based on flight hours","Minimal defined terms (only standard aviation abbreviations)","No nested exceptions or cross-references to other legislation"],"plain_english_summary":"This Airworthiness Directive (AD) mandates a safety fix for specific Cessna 177 aircraft to address control system issues.\n\n**Who it affects**\nOwners and operators of Cessna 177 series aeroplanes with serial numbers between 17701354 and 17701426.\n\n**What it requires**\nYou must perform maintenance actions on the control systems exactly as described in Cessna Service Letter SE69-28 (a manufacturer-issued technical bulletin).\n\n**When**\nThe work must be completed within 100 hours of flight time after 29 April 1970.\n\n**Why it matters**\nThis directive (issued in 1970) addresses specific safety defects in the control systems of these particular aircraft. Compliance is mandatory to maintain airworthiness certification."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-177-8-control-systems","history":"/api/acts/ad-cessna-177-8-control-systems/history","analysis":"/api/acts/ad-cessna-177-8-control-systems/analysis","conflicts":"/api/acts/ad-cessna-177-8-control-systems/conflicts","importantCases":"/api/acts/ad-cessna-177-8-control-systems/important-cases","documents":"/api/acts/ad-cessna-177-8-control-systems/documents"}}