{"id":"F2006B08390","name":"AD/CESSNA 500/16 Amdt 1 - Cabin Door Frame - Inspection, Modification and Replacement","slug":"ad-cessna-500-16-amdt-1-cabin-door-frame-inspection-modification-and-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115828,"registerId":"commonwealth-F2006B08390-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 500/16 Amdt 1 - Cabin Door Frame - Inspection, Modification and 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 500/16\n\nAmdt 1\n\n\nCabin Door Frame - Inspection, Modification and Replacement\n\n\n7/82\n\n \n\nApplicability: All models 500 and 501, with unit numbers 0001 to 0532. Document:  Cessna Citation SB No. 53-12, Revision 3.\n\nCompliance: As per requirement document.\n\n \n\nBackground: The possibility of marginal edge distances of rivets common to the fuselage frame and “Z” angle of the aft door post exists. This issue introduces the need for additional modification in the form of component replacement where offset greater than 0.25 inch exists.\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":1691},"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"As Amendment 1, this directive maintains the original narrow scope focused solely on cabin door frame inspections and repairs for specific Cessna 500/501 aircraft. The amendment likely updates document references or compliance details without expanding beyond the original safety concern regarding door post rivet integrity."},"complexity_factors":["Technical aviation engineering terminology (e.g., 'Z' angle, fuselage frame, edge distances) requires specialist knowledge to interpret fully","Cross-reference to external technical document (Cessna Service Bulletin No. 53-12, Revision 3) without reproducing its contents","Precise measurement threshold requiring technical assessment (0.25 inch offset)","Limited applicability criteria based on specific unit number ranges (0001-0532)"],"plain_english_summary":"This is a mandatory safety directive for owners of specific Cessna business jets (Models 500 and 501, serial numbers 0001 through 0532).\n\n**What it requires:**\nAircraft operators must inspect the cabin door frame for a specific structural defect involving rivet placement.\n\n**The safety issue:**\nThe rivets connecting the fuselage frame to the \"Z\" angle (a shaped metal bracket) of the rear door post may be positioned too close to the edge of the metal—a problem called \"marginal edge distance.\" This weakens the structure holding the door in place.\n\n**What must be done:**\nIf inspectors find the rivet offset is greater than 0.25 inches (about 6mm), the affected parts must be modified or replaced following the manufacturer's instructions in Cessna Service Bulletin No. 53-12.\n\n**Who it affects:**\nAny Australian-registered Cessna 500 or 501 aircraft within the specified serial number range. Non-compliance means the aircraft cannot legally fly in Australia."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-500-16-amdt-1-cabin-door-frame-inspection-modification-and-replacement","history":"/api/acts/ad-cessna-500-16-amdt-1-cabin-door-frame-inspection-modification-and-replacement/history","analysis":"/api/acts/ad-cessna-500-16-amdt-1-cabin-door-frame-inspection-modification-and-replacement/analysis","conflicts":"/api/acts/ad-cessna-500-16-amdt-1-cabin-door-frame-inspection-modification-and-replacement/conflicts","importantCases":"/api/acts/ad-cessna-500-16-amdt-1-cabin-door-frame-inspection-modification-and-replacement/important-cases","documents":"/api/acts/ad-cessna-500-16-amdt-1-cabin-door-frame-inspection-modification-and-replacement/documents"}}