{"id":"F2006B08388","name":"AD/CESSNA 500/14 - Exhaust Nozzle Cone - Replacement","slug":"ad-cessna-500-14-exhaust-nozzle-cone-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115824,"registerId":"commonwealth-F2006B08388-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 500/14 - Exhaust Nozzle Cone - Replacement","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 500 (Citation) Series Aeroplanes\n\n \n\nAD/CESSNA 500/14 Exhaust Nozzle Cone - Replacement 7/76\n\nApplicability: Model 500 with S/Nos. 500-0001 to 500-0314 which have engine S/Nos. as listed in Pratt & Whitney of Canada SB No. 7095.\n\n \n\nDocument: Cessna Citation SB 78-6, Part I. Compliance: As detailed in the requirement document.\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":1565},"content_quality":"ok","complexity_score":2,"rejection_reason":"","scope_assessment":{"changed":false,"description":"This directive maintains its original narrow scope targeting a specific airworthiness issue with exhaust components on early production Cessna 500 aircraft manufactured in the 1970s. There is no indication of scope creep or expansion beyond the initial safety concern."},"complexity_factors":["Highly specific applicability limited to aircraft serial number range 500-0001 through 500-0314","Cross-references to two external technical documents (Cessna SB 78-6 and Pratt & Whitney SB 7095)","Technical aviation terminology requiring specialist engineering knowledge to implement","Extremely brief text (under 100 words) with compliance determined entirely by external manufacturer documentation"],"plain_english_summary":"This mandatory Airworthiness Directive from CASA requires owners/operators of early-model Cessna 500 jets (SN 500‑0001 to 500‑0314) equipped with the Pratt & Whitney engines identified in SB 7095 to replace the exhaust nozzle cones per Cessna Service Bulletin 78‑6, Part I. It addresses a nozzle condition that could affect engine performance and flight safety and must be carried out by licensed maintenance personnel."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-500-14-exhaust-nozzle-cone-replacement","history":"/api/acts/ad-cessna-500-14-exhaust-nozzle-cone-replacement/history","analysis":"/api/acts/ad-cessna-500-14-exhaust-nozzle-cone-replacement/analysis","conflicts":"/api/acts/ad-cessna-500-14-exhaust-nozzle-cone-replacement/conflicts","importantCases":"/api/acts/ad-cessna-500-14-exhaust-nozzle-cone-replacement/important-cases","documents":"/api/acts/ad-cessna-500-14-exhaust-nozzle-cone-replacement/documents"}}