{"id":"F2006B08284","name":"AD/CESSNA 340/7 Amdt 6 - Engine Exhaust System","slug":"ad-cessna-340-7-amdt-6-engine-exhaust-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115605,"registerId":"commonwealth-F2006B08284-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 340/7 Amdt 6 - Engine Exhaust System","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 340 Series Aeroplanes\n\n \n\n# AD/CESSNA 340/7\n\nAmdt 6\n\nApplicability: All Turbocharged models.\n\n# Engine Exhaust System 3/87\n\n \n\nRequirement:  1. Inspect engine exhaust system in accordance with Cessna SIL No. ME75-17, including “Expanded inspection and maintenance instructions” as detailed in Cessna SIL No. ME79-32.\n\n \n\n2.    Inspect those items listed in Table 2 of Cessna SIL No. ME79-32.\n\n \n\n3.    Replace multi-segment “V” band exhaust clamps listed in Table 3 of Cessna SIL No. ME79-32.\n\n \n\nNote: FAA AD 75-23-08 Amdt 39-5451 refers.\n\n \n\nCompliance: 1. At intervals not exceeding 50 hours time in service.\n\n \n\n2.    At intervals not exceeding 100 hours time in service.\n\n \n\n3.    At intervals not exceeding 750 hours time in service.\n\n \n\nBackground: This Directive has been amended to include reference to the latest FAA AD amendment.\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":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope — safety maintenance for Cessna 340 turbocharged exhaust systems. Amendment 6 simply updates the reference to the latest FAA AD amendment without expanding the aircraft types covered, systems affected, or maintenance requirements."},"complexity_factors":["Very short document (approximately 250 words)","Only 3 substantive requirements with clear, numbered compliance intervals","References external documents (Cessna SILs) but provides specific table references for traceability","No defined terms section or interpretation provisions","Single amendment note explaining the update rationale","No conditional logic, exceptions, or nested provisions"],"plain_english_summary":"This CASA Airworthiness Directive mandates regular exhaust-system maintenance for all turbocharged Cessna 340s: inspect the exhaust per Cessna SILs, check specified components, and replace multi‑segment “V” band clamps at set flight‑hour intervals (50/100/750 hrs). It addresses known exhaust failures that can cause carbon‑monoxide ingress, engine damage, or fire, and aligns Australian requirements with the FAA’s corresponding AD."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The Directive was amended solely to reference the latest FAA AD amendment (per Background). The operational scope—inspections and clamp replacements for turbocharged Cessna 340s—remains the same; the amendment updates cross‑references without expanding who or what is covered."},"complexity_factors":["Clear, limited scope: applies to all turbocharged Cessna 340 models only","Relies on external documents (Cessna SILs ME75‑17 and ME79‑32) for detailed procedures","Multiple, fixed compliance intervals (50, 100, 750 hours) require maintenance scheduling and recordkeeping","Specific part replacement list (Table 3 of SIL ME79‑32) creates parts procurement obligations","Reference to FAA AD for cross‑compliance increases regulatory linkage but not procedural complexity"],"plain_english_summary":"This airworthiness directive requires operators of turbocharged Cessna 340 aeroplanes to carry out recurring inspections of the engine exhaust system and to replace specified multi‑segment “V” band exhaust clamps, following Cessna Service Information Letters. Inspections occur at 50‑ and 100‑hour intervals and clamp replacement at 750‑hour intervals. Aircraft owners/operators pay for inspections, maintenance and parts; compliance must follow the specified Cessna SILs and FAA AD cross‑reference."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-340-7-amdt-6-engine-exhaust-system","history":"/api/acts/ad-cessna-340-7-amdt-6-engine-exhaust-system/history","analysis":"/api/acts/ad-cessna-340-7-amdt-6-engine-exhaust-system/analysis","conflicts":"/api/acts/ad-cessna-340-7-amdt-6-engine-exhaust-system/conflicts","importantCases":"/api/acts/ad-cessna-340-7-amdt-6-engine-exhaust-system/important-cases","documents":"/api/acts/ad-cessna-340-7-amdt-6-engine-exhaust-system/documents"}}