{"id":"F2006B02586","name":"AD/B-2/15 - Superseded by AD/B-2/23","slug":"ad-b-2-15-superseded-by-ad-b-2-23","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41842,"registerId":"commonwealth-F2006B02586-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B-2/15 - Superseded by AD/B-2/23","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET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OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Brantly B-2 Series Helicopters\n\n \n\nAD/B-2/15 Superseded by AD/B-2/23 NK\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n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 schedule entry records that AD/B-2/15 has been superseded by AD/B-2/23, which indicates the operative scope and requirements have been replaced. The entry itself does not state the new or former technical obligations; to determine the precise change in scope one must compare the full texts of AD/B-2/15 and AD/B-2/23."},"complexity_factors":["Document is an index/schedule entry rather than a full regulatory text (no substantive requirements included).","Supersession requires cross-referencing to a successor AD (AD/B-2/23) to know current obligations.","Regulatory hierarchy reference (Civil Aviation Regulations 1998, Part 39) implies further procedural context outside the entry.","Stakeholder effects (costs, inspections, downtime) depend entirely on the successor AD’s content, introducing conditional complexity."],"plain_english_summary":"What this document is: A short entry in the Civil Aviation Safety Authority's Schedule of Airworthiness Directives that names an airworthiness directive for Brantly B‑2 series helicopters and records that AD/B‑2/15 has been superseded by AD/B‑2/23 (see lines: “Brantly B-2 Series Helicopters” and “AD/B-2/15 Superseded by AD/B-2/23”). It is issued under the Commonwealth’s Civil Aviation Regulations 1998, Part 39 (header: “COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES”).\n\nWho it affects: Owners, operators, maintenance organisations and any other parties responsible for the airworthiness and maintenance of Brantly B‑2 series helicopters. CASA (the Civil Aviation Safety Authority) is the issuing authority listed in the header and therefore the decision‑maker for the entry.\n\nWhat it does mechanically: It records that a prior airworthiness directive (AD/B‑2/15) has been replaced by a later directive (AD/B‑2/23). Mechanically, that means compliance obligations arising from the superseding AD (AD/B‑2/23) take precedence over AD/B‑2/15. The schedule entry itself does not set out technical requirements or compliance steps; those would appear in the text of the relevant ADs.\n\nWhy it matters: Airworthiness directives impose mandatory maintenance, inspection or modification requirements to maintain an aircraft’s certificate of airworthiness. By marking AD/B‑2/15 as superseded, the schedule signals that operators must look to AD/B‑2/23 for the current mandatory actions and compliance timeline. This shifts which specific inspections or corrective actions operators must perform, and therefore shifts who pays and what work is done.\n\nCosts, incentives and trade-offs (mechanical, source‑grounded):\n- Who pays: Owners/operators of Brantly B‑2 helicopters bear the compliance costs (inspection, repair, modification, downtime) required by the active AD (the successor AD is specified in the entry). (See: “Brantly B-2 Series Helicopters”; “AD/B-2/15 Superseded by AD/B-2/23”.)\n- Who decides: CASA, under the Civil Aviation Regulations 1998, Part 39, determines AD issuance and supersession (see header). The schedule entry records that decision; the contents of the successor AD set specific obligations and timelines.\n- Compliance burden and uncertainty: The schedule entry itself does not describe technical measures, so affected parties must obtain and follow the full text of AD/B‑2/23 to know exact obligations. That creates a cross‑reference requirement and potential short‑term uncertainty until the successor AD is consulted.\n- Implementation risk and administrative cost: Supersession shifts enforcement and administrative focus to the successor AD. Operators must track such updates to remain compliant; failure to consult the current AD can lead to non‑compliance risk and operational consequences.\n- Incentives and substitution effects: Supersession can alter which corrective actions are required (for example, different inspections, repetitive intervals, or mandated modifications). That can change maintenance scheduling, spare‑parts demand, and choices about continued operation versus retirement or sale. The schedule entry identifies the replacement but does not disclose the new technical or economic details.\n\nWhat this entry does not do: It does not itself specify technical requirements, compliance dates, cost estimates, or the substantive content of either AD/B‑2/15 or AD/B‑2/23. Those substantive details must be read in the full text of the relevant ADs."},"kimi_summary":{"content_quality":"rejected","complexity_score":1,"rejection_reason":"This is not substantive legislation but a navigation stub/tombstone page indicating that Airworthiness Directive AD/B-2/15 has been superseded by AD/B-2/23. It contains no operative provisions, requirements, or meaningful legislative content — only metadata, document identifiers, and a supersession notice. The actual legislative content would be found in the full text of AD/B-2/15 (historical) or AD/B-2/23 (current).","scope_assessment":{"changed":false,"description":"Not applicable — this is a navigation/metadata document rather than substantive legislation. It indicates a directive has been replaced but contains no legislative content itself."},"complexity_factors":["Document is essentially a placeholder/tombstone page indicating a superseded directive","No substantive regulatory content present — only metadata and cross-reference to replacement directive","No defined terms, conditional logic, or operational requirements in the visible content","Consists entirely of header information, document identifier, and supersession notice"],"plain_english_summary":"This document is a **superseded Airworthiness Directive (AD)** for Brantly B-2 series helicopters. An Airworthiness Directive is a mandatory safety notice issued by the Civil Aviation Safety Authority (CASA) requiring aircraft owners or operators to perform specific inspections, repairs, or modifications to address unsafe conditions.\n\n**What this document shows:**\n- **AD/B-2/15** was the 15th Airworthiness Directive issued for the Brantly B-2 helicopter series\n- It has been **superseded** (replaced) by **AD/B-2/23** — meaning the requirements in AD/B-2/15 are no longer in force and have been updated or replaced by a newer directive\n- The \"NK\" notation typically indicates the directive was issued by CASA's Continuing Airworthiness Management Section\n\n**Who it affects:**\n- Owners and operators of Brantly B-2 series helicopters\n- Maintenance organisations servicing these aircraft\n\n**Why it matters:**\nAirworthiness Directives are legally enforceable safety requirements. When an AD is superseded, operators must comply with the newer version (AD/B-2/23 in this case), not the old one. This document serves as a historical reference showing the directive has been updated."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b-2-15-superseded-by-ad-b-2-23","history":"/api/acts/ad-b-2-15-superseded-by-ad-b-2-23/history","analysis":"/api/acts/ad-b-2-15-superseded-by-ad-b-2-23/analysis","conflicts":"/api/acts/ad-b-2-15-superseded-by-ad-b-2-23/conflicts","importantCases":"/api/acts/ad-b-2-15-superseded-by-ad-b-2-23/important-cases","documents":"/api/acts/ad-b-2-15-superseded-by-ad-b-2-23/documents"}}