{"id":"F2006B06479","name":"AD/RAD/13 Amdt 1 - VHF Transceiver Circuit Protection - Modification","slug":"ad-rad-13-amdt-1-vhf-transceiver-circuit-protection-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":47994,"registerId":"commonwealth-F2006B06479-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/RAD/13 Amdt 1 - VHF Transceiver Circuit Protection - 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/13\n\nAmdt 1\n\n\nVHF Transceiver Circuit Protection - Modification 10/65\n\n \n\nApplicability: Rexair VTR-5 series Transceivers installed with interwiring looms supplied by Rex Aviation.\n\n \n\nRequirement: Modify interwiring or equipment to provide adequate circuit protection for all wiring between the control unit and the transceiver.\n\n \n\nNote: This requirement can be met by incorporating Rex Aviation Design Change No. 7 which provides a 5 amp fuse in the control unit.\n\n \n\nCompliance: Before 1 March 1966.\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":2108},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The directive maintains a narrow technical scope focused solely on circuit protection for a specific transceiver model. It addresses a discrete safety issue without expanding to broader radio systems or aircraft types."},"complexity_factors":["Single, specific equipment model identified (Rexair VTR-5 series)","No defined terms or interpretation section","Single unambiguous requirement with suggested compliance method","No cross-references to other legislation or conditional exceptions"],"plain_english_summary":"This Airworthiness Directive mandates a safety modification for specific aircraft radio equipment to prevent electrical hazards.\n\n**Who is affected:**\nAircraft owners and operators with **Rexair VTR-5 series VHF transceivers** (radio communication equipment) installed using wiring looms supplied by Rex Aviation.\n\n**What you must do:**\nModify the wiring system or equipment to install adequate circuit protection (such as a fuse) on all wiring running between the radio control unit and the transceiver unit.\n\n**Approved method:**\nYou can satisfy this requirement by implementing **Rex Aviation Design Change No. 7**, which adds a 5 amp fuse to the control unit.\n\n**Why it matters:**\nThis modification protects against electrical faults that could damage your aircraft's communication system or create fire hazards. It ensures the wiring between your radio components has proper overcurrent protection (a safety device that cuts power if too much electricity flows through), keeping your aircraft's electrical system safe and airworthy."}},"importantCases":[],"_links":{"self":"/api/acts/ad-rad-13-amdt-1-vhf-transceiver-circuit-protection-modification","history":"/api/acts/ad-rad-13-amdt-1-vhf-transceiver-circuit-protection-modification/history","analysis":"/api/acts/ad-rad-13-amdt-1-vhf-transceiver-circuit-protection-modification/analysis","conflicts":"/api/acts/ad-rad-13-amdt-1-vhf-transceiver-circuit-protection-modification/conflicts","importantCases":"/api/acts/ad-rad-13-amdt-1-vhf-transceiver-circuit-protection-modification/important-cases","documents":"/api/acts/ad-rad-13-amdt-1-vhf-transceiver-circuit-protection-modification/documents"}}