{"id":"F2006B10128","name":"AD/G73/17 - Superseded by AD/G73/21","slug":"ad-g73-17-superseded-by-ad-g73-21","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55682,"registerId":"commonwealth-F2006B10128-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/G73/17 - Superseded by AD/G73/21","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET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OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Frakes (Grumman) G73 Series Aeroplanes\n\n \n\nAD/G73/17 Superseded by AD/G73/21 NK\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n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":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":true,"description":"The entry records that the scope of regulatory obligations for Frakes (Grumman) G73 Series aeroplanes has changed in that AD/G73/17 is no longer the operative AD and has been replaced by AD/G73/21 (source line: \"AD/G73/17 Superseded by AD/G73/21 NK\"). The Schedule entry itself does not set out the new or previous technical requirements; it only indicates the supersession, so anyone affected must consult AD/G73/21 for the current scope of required actions."},"complexity_factors":["Record is a single-sentence schedule entry with no substantive technical requirements listed (low textual complexity).","Cross-reference/supersession relation (AD/G73/17 -> AD/G73/21) requires consulting another instrument for operative details (moderate navigational complexity).","Regulatory context reference (Civil Aviation Regulations 1998, Part 39) adds legal framing but not operational detail.","Absence of remedial measures, compliance timeframes or technical instructions in this entry increases reliance on external document (AD/G73/21) to determine obligations."],"plain_english_summary":"Frakes (Grumman) G73 Series aeroplanes: CASA’s Schedule records that airworthiness directive AD/G73/17 has been superseded by AD/G73/21. Owners, operators and maintenance organisations must now follow the requirements in AD/G73/21; the Schedule entry itself is an administrative record of the change, not a substitute for the technical compliance steps and costs specified in the replacing AD."},"kimi_summary":{"content_quality":"rejected","complexity_score":1,"rejection_reason":"This is a navigation/header page or stub document containing only metadata (document identification, supersession notice, and formatting artifacts). It contains no substantive legislative content — no operative provisions, requirements, definitions, or regulatory text. The actual Airworthiness Directive content appears to be missing or this is a cover page from a larger document.","scope_assessment":{"changed":false,"description":"Not applicable — this is a document header/placeholder with no substantive scope to assess. The document merely indicates that AD/G73/17 has been replaced by AD/G73/21, which is a standard administrative update rather than a scope change."},"complexity_factors":["Document is essentially a placeholder or header page indicating supersession status","No substantive regulatory content present — only metadata and document identification","No defined terms, operative provisions, or conditional logic","Consists entirely of document control information (AD number, aircraft type, supersession notice)"],"plain_english_summary":"This document is an **Airworthiness Directive (AD)** — a mandatory safety notice issued by the Civil Aviation Safety Authority (CASA) for aircraft registered in Australia. Specifically, **AD/G73/17** applies to **Frakes (Grumman) G73 series aeroplanes** (a type of amphibious aircraft). \n\nThe key information here is that this particular directive has been **superseded by AD/G73/21** — meaning the older directive (AD/G73/17) is no longer in force and has been replaced by a newer version. Aircraft owners and operators must now follow the requirements in AD/G73/21 instead.\n\n**Why this matters:** Airworthiness Directives are legally binding safety instructions. If an aircraft owner fails to comply with the current (non-superseded) directive, they cannot legally operate the aircraft. This document serves as a historical reference point showing the regulatory lineage — useful for maintenance records, legal disputes, or understanding when safety requirements changed."}},"importantCases":[],"_links":{"self":"/api/acts/ad-g73-17-superseded-by-ad-g73-21","history":"/api/acts/ad-g73-17-superseded-by-ad-g73-21/history","analysis":"/api/acts/ad-g73-17-superseded-by-ad-g73-21/analysis","conflicts":"/api/acts/ad-g73-17-superseded-by-ad-g73-21/conflicts","importantCases":"/api/acts/ad-g73-17-superseded-by-ad-g73-21/important-cases","documents":"/api/acts/ad-g73-17-superseded-by-ad-g73-21/documents"}}