{"id":"F2006B06500","name":"AD/RAD/4 - Bendix D.F. Receiver Mechanical Filter Circuit - Modification","slug":"ad-rad-4-bendix-d-f-receiver-mechanical-filter-circuit-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48060,"registerId":"commonwealth-F2006B06500-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/RAD/4 - Bendix D.F. Receiver Mechanical Filter Circuit - 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/4 Bendix D.F. Receiver Mechanical NK\n\nFilter Circuit - Modification\n\n \n\nApplicability: All Bendix Automatic DF Receivers Type DFA-70 fitted with 1500 cps Mech. Filter Type FLA-70A-3.\n\n \n\nDocument: 1. Bendix Radio SB No. M-249 Issue 1; or 2. ANO 107.9.6.2.2.\n\nCompliance: Before installation in an aircraft.\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":1054},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This appears to maintain its original narrow scope as a specific equipment modification directive targeting the Bendix DFA-70 receiver filter issue, without evidence of scope creep or expansion into broader regulatory areas."},"complexity_factors":["Single, discrete technical requirement","Specific equipment model applicability (DFA-70 with FLA-70A-3 filter only)","No conditional exceptions or nested definitions","External reference to technical service bulletin rather than embedding complex instructions","Clear, unambiguous compliance trigger (before installation)"],"plain_english_summary":"This safety rule bans installing Bendix DFA-70 radio direction‑finding receivers that use the mechanical filter FLA‑70A‑3 unless the filter circuit is modified per Bendix Service Bulletin M‑249 (or Airworthiness Notice 107.9.6.2.2). \n\nIt affects aircraft operators and maintenance personnel who own or install these vintage receivers — compliance is mandatory because installing unmodified units would violate airworthiness regulations and risk navigation safety."}},"importantCases":[],"_links":{"self":"/api/acts/ad-rad-4-bendix-d-f-receiver-mechanical-filter-circuit-modification","history":"/api/acts/ad-rad-4-bendix-d-f-receiver-mechanical-filter-circuit-modification/history","analysis":"/api/acts/ad-rad-4-bendix-d-f-receiver-mechanical-filter-circuit-modification/analysis","conflicts":"/api/acts/ad-rad-4-bendix-d-f-receiver-mechanical-filter-circuit-modification/conflicts","importantCases":"/api/acts/ad-rad-4-bendix-d-f-receiver-mechanical-filter-circuit-modification/important-cases","documents":"/api/acts/ad-rad-4-bendix-d-f-receiver-mechanical-filter-circuit-modification/documents"}}