{"id":"F2006B06498","name":"AD/RAD/38 - Collins ATC Transponder TDR-950 - Modification","slug":"ad-rad-38-collins-atc-transponder-tdr-950-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48053,"registerId":"commonwealth-F2006B06498-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/RAD/38 - Collins ATC Transponder TDR-950 - Modification","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 - 107 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Radio Communication and Navigation Equipment\n\n \n\nAD/RAD/38 Collins ATC Transponder TDR-950 - Modification 2/79\n\nApplicability: All TDR-950 transponders with S/Nos. between 8100 and 8600. Document:  Rockwell-Collins SB No. 8 - October 16, 1978.\n\nCompliance: Within 100 hours time in service after 28 February 1979.\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\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1482},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive remains tightly scoped to its original purpose: mandating a specific hardware modification for a narrowly defined batch of transponders. There is no evidence of scope creep into broader operational areas or additional equipment types."},"complexity_factors":["Single, unambiguous applicability criterion (serial numbers 8100–8600)","Only one external technical document referenced (Service Bulletin No. 8)","Simple, single-layer compliance deadline with no exceptions or extensions mentioned","No defined terms section or cross-references to other legislation","Extremely brief text with minimal conditional language"],"plain_english_summary":"This mandatory Civil Aviation Safety Authority Airworthiness Directive requires owners/operators of aircraft fitted with Collins TDR-950 transponders (serial numbers 8100–8600) to carry out the modification specified in Rockwell‑Collins Service Bulletin No. 8 (16 Oct 1978).  \n\nThe change must be completed within 100 hours time in service after 28 February 1979 to prevent transponder malfunctions that could impair ATC tracking and increase collision risk."}},"importantCases":[],"_links":{"self":"/api/acts/ad-rad-38-collins-atc-transponder-tdr-950-modification","history":"/api/acts/ad-rad-38-collins-atc-transponder-tdr-950-modification/history","analysis":"/api/acts/ad-rad-38-collins-atc-transponder-tdr-950-modification/analysis","conflicts":"/api/acts/ad-rad-38-collins-atc-transponder-tdr-950-modification/conflicts","importantCases":"/api/acts/ad-rad-38-collins-atc-transponder-tdr-950-modification/important-cases","documents":"/api/acts/ad-rad-38-collins-atc-transponder-tdr-950-modification/documents"}}