{"id":"F2006B06529","name":"AD/RAD/74 - Garmin GNS 430","slug":"ad-rad-74-garmin-gns-430","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48179,"registerId":"commonwealth-F2006B06529-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# ![](image.001.png)  \nAIRWORTHINESS DIRECTIVE\n\nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\n![](image.001.png)\n\nRadio Communication and Navigation Equipment","sortOrder":0},{"sectionNumber":"AD/RAD/74 Garmin GNS 430 2/2002","sectionType":"part","heading":"AD/RAD/74 Garmin GNS 430 2/2002","content":"# AD/RAD/74 Garmin GNS 430 2/2002\n\nApplicability: Garmin International GNS 430 Comm/Nav/GPS unit Part Number 011-00280-00 with the following Serial Numbers:\n\n96300001, 96300002, 96300017, 96300028, 96300034, 96300040, 96300068,\n\n96300104, 96300108, 96300122, 96300125, 96300130, 96300142, 96300149,\n\n96300161, 96300165, 96300218, 96300222, 96300232, 96300269, 96300272,\n\n96300308, 96300333, 96300340, 96300348, 96300354, 96300369, 96300372,\n\n96300382, 96300394, 96300411, 96300413, 96300429, 96300437, 96300451,\n\n96300484, 96300485, 96300489, 96300504, 96300506, 96300513, 96300522,\n\n96300549, 96300563, 96300585, 96300587, 96300618, 96300621, 96300624,\n\n96300628, 96300641, 96300653, 96300664, 96300713, 96300734, 96300756,\n\n96300766, 96300781, 96300785, 96300786, 96300808, 96300831, 96300837,\n\n96300842, 96300846, 96300866, 96300870, 96300872, 96300899, 96300916,\n\n96300923, 96300925, 96300929, 96300941, 96300961, 96300984, 96300987,\n\n96301021, 96301108, 96301130, 96301280, and 96301296 through 96303200\n\nNote 1: These GNS 430 units are known to be installed in, but not limited to, the following aeroplanes:\n\nManufacturer Model\n\nCessna Aircraft Company 172, 182, 206, 208, 210, 401, 402, 404, 406,\n\n411, 414, 414A, 421A, 421B, 421C, 425, 441,\n\n500, 550, S550, 552, 560, 560XL, 501, 525, and\n\n551.\n\nMooney Aircraft M20, M20A, M20B, M20C, M20D, M20E,\n\nM20F, M20G, M20J, M20K, M20L, M20M, M20R, M20S, and M22.\n\nRaytheon Aircraft Company Beech Models E33, F33, G33, E33A, F33A,\n\nE33C, F33C, 35, 35R, A35, B35, B35TC, C35, D35, E35, F35, G35, H35, J35, K35, M35, N35, P35, S35, V35, V35TC, V35A, V35A-TC, V35B, V35B-TC, 36, A36, A36TC, 50, B50, C50, D50, D50A, D50B, D50C, D50E, E50, F50, G50, H50, J50, 60, A60, B60, 65-90, 65-A90, B90, C90, C90A, C90B, E90, F90, 100, A100, B100, 95-55, 95-A55, 95-B55, 95-C55, D-55, E55, 58,\n\n58P, and 58TC.","sortOrder":1}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The supplied text defines a narrow, serial-numbered scope targeting specific Garmin GNS 430 units and notes aircraft types where they are installed. There is no indication in this text that the scope has been expanded or narrowed from an earlier intent."},"complexity_factors":["Narrow applicability limited to a single part number with many individually listed serial numbers — increases tracing and inventory checks for operators.","Applicability note lists many aircraft models where units are known to be installed, expanding the universe of potentially affected operators across fleets.","Legal authority is delegated to CASA under CAR 1998 subreg 39.1(1), so the specific remedial steps and timing depend on the requirement section issued by the delegate.","The requirement section (detailing exact corrective actions and compliance time) is referenced but not included in the supplied text, creating implementation uncertainty until those instructions are provided."],"plain_english_summary":"This Airworthiness Directive requires corrective action for Garmin GNS 430 Comm/Nav/GPS units of the specified part number and listed serial numbers. It applies to aircraft that have those particular units installed.\n\nThe directive is issued under CASA authority (CAR 1998 subreg 39.1(1)) and requires owners/operators to carry out the actions and meet the timing set out by the delegate. It creates a binding compliance obligation for affected operators to address an identified unsafe condition."},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standard, narrow Airworthiness Directive targeting a specific technical defect in specific units. It has not expanded beyond its original safety purpose."},"complexity_factors":["Highly specific applicability limited to 90+ individual serial numbers plus one range","No substantive legal text — purely administrative/operational in nature","No defined terms, cross-references, or conditional logic beyond simple serial number matching","Straightforward structure: applicability → requirement → compliance (though compliance section not shown in extract)","Single-purpose instrument with no policy complexity"],"plain_english_summary":"This AD mandates corrective action for specific Garmin GNS 430 navigation/communication/GPS units identified by individual serial numbers and the range 96301296–96303200. It affects owners and maintenance organisations of aircraft—commonly many Cessna, Mooney, and Beech models—fitted with those units.\n\nCompliance is legally required: non‑compliant aircraft are unairworthy. The directive addresses an unsafe condition in these units that could compromise flight safety."}},"importantCases":[],"_links":{"self":"/api/acts/ad-rad-74-garmin-gns-430","history":"/api/acts/ad-rad-74-garmin-gns-430/history","analysis":"/api/acts/ad-rad-74-garmin-gns-430/analysis","conflicts":"/api/acts/ad-rad-74-garmin-gns-430/conflicts","importantCases":"/api/acts/ad-rad-74-garmin-gns-430/important-cases","documents":"/api/acts/ad-rad-74-garmin-gns-430/documents"}}