{"id":"F2006B04933","name":"AD/CESSNA 150/35 - Flying Control System Turnbuckles","slug":"ad-cessna-150-35-flying-control-system-turnbuckles","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44778,"registerId":"commonwealth-F2006B04933-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 150/35 - Flying Control System Turnbuckles","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 150, F150, 152 & F152 Series Aeroplanes\n\n \n\nAD/CESSNA 150/35 Flying Control System Turnbuckles 4/80\n\nApplicability: All models 150, A150, 152, A152, F152 and FRA152 with S/Nos. 15079164 to 15279405, A1500685 to A1500734, A1520735 to A1520878, 15279406 to 15283862, F152001375 to F152001641, F152001664 to F152001674, FRA15200318 to FRA15200358.\n\n \n\nRequirement: Action in accordance with Cessna SIL No. SE80-16. Compliance:  Within 100 hours time in service after 30 April 1980.\n\nBackground: Some of the AN 155 brass turnbuckles used in the control system may have longitudinal cracks radiating from the turnbuckle end.\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":2285},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This airworthiness directive maintains its original narrow technical scope addressing a specific manufacturing defect in particular Cessna aircraft models."},"complexity_factors":["External reference to Cessna Service Information Letter SE80-16 for technical implementation details","Six distinct serial number ranges defining limited applicability","Single time-based compliance condition with no nested exceptions"],"plain_english_summary":"**What this requires:**\nOwners of specific Cessna 150 and 152 aircraft must inspect or replace brass turnbuckles (adjustable connectors) in the flying control systems in accordance with Cessna's technical instructions.\n\n**Why it matters:**\nSome turnbuckles were found to develop longitudinal cracks radiating from the ends, which could cause control system failure and create a serious flight safety risk.\n\n**Who is affected:**\nOperators of Cessna 150, A150, 152, A152, F152 and FRA152 aircraft with serial numbers in the specific ranges listed (including 15079164 through 15283862 and other specified batches).\n\n**Compliance deadline:**\nThe required actions must be completed within 100 hours of flight time after 30 April 1980."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-150-35-flying-control-system-turnbuckles","history":"/api/acts/ad-cessna-150-35-flying-control-system-turnbuckles/history","analysis":"/api/acts/ad-cessna-150-35-flying-control-system-turnbuckles/analysis","conflicts":"/api/acts/ad-cessna-150-35-flying-control-system-turnbuckles/conflicts","importantCases":"/api/acts/ad-cessna-150-35-flying-control-system-turnbuckles/important-cases","documents":"/api/acts/ad-cessna-150-35-flying-control-system-turnbuckles/documents"}}