{"id":"F2006B08385","name":"AD/CESSNA 500/11 - Aft Facing Seat - Inspection","slug":"ad-cessna-500-11-aft-facing-seat-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115818,"registerId":"commonwealth-F2006B08385-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 500/11 - Aft Facing Seat - Inspection","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 500/11 Aft Facing Seat - Inspection 4/75\n\nApplicability: All model 500 with S/Nos. 500-0001 to 500-0222 fitted with aft facing passenger seats which have not been modified in accordance with SB 25-16 dated 26 Feb. 1975.\n\n \n\nDocument: Cessna Citation Alert SB SBA 25-16.\n\n \n\nCompliance: Within 25 hours time in service after 25 February 1975.\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":1543},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This airworthiness directive remains strictly focused on its original technical purpose: rectifying a specific safety defect in aft-facing seat structures on early-production Cessna 500 aircraft. There is no evidence of regulatory scope expansion beyond the initial airworthiness concern."},"complexity_factors":["Single-page directive with no sections or subsections","No defined terms or interpretation clauses","Simple applicability criteria based solely on serial number range and modification status","Single compliance requirement with specific flight-hour deadline","No conditional logic or exceptions"],"plain_english_summary":"**What this does:** This is a safety directive requiring inspection (and potential modification) of rear-facing passenger seats on specific Cessna 500 Citation aircraft.\n\n**Who it affects:** Owners and operators of early-model Cessna 500 jets with serial numbers 500-0001 through 500-0222 that still have original rear-facing passenger seats. Specifically, it applies to aircraft that have **not** already been modified according to Cessna Service Bulletin 25-16 issued on 26 February 1975.\n\n**What must be done:** Operators must complete the inspection procedure outlined in Cessna Alert Service Bulletin SBA 25-16 within 25 flight hours after 25 February 1975.\n\n**Why it matters:** This addresses a specific structural safety defect in the seat mounting of early Cessna Citation jets. The directive ensures the seats won't fail during flight, protecting passengers sitting in the rear-facing configuration."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-500-11-aft-facing-seat-inspection","history":"/api/acts/ad-cessna-500-11-aft-facing-seat-inspection/history","analysis":"/api/acts/ad-cessna-500-11-aft-facing-seat-inspection/analysis","conflicts":"/api/acts/ad-cessna-500-11-aft-facing-seat-inspection/conflicts","importantCases":"/api/acts/ad-cessna-500-11-aft-facing-seat-inspection/important-cases","documents":"/api/acts/ad-cessna-500-11-aft-facing-seat-inspection/documents"}}