{"id":"F2006B10915","name":"AD/JETSTREAM/46 - Landing Flap Restriction","slug":"ad-jetstream-46-landing-flap-restriction","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56458,"registerId":"commonwealth-F2006B10915-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/JETSTREAM/46 - Landing Flap Restriction","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)  British Aerospace BAe 3100 (Jetstream) Series Aeroplanes\n\n \n\nAD/JETSTREAM/46 Landing Flap Restriction 12/91\n\nCANCELLED.\n\n \n\nBackground: AD/JETSTREAM/46 duplicates the requirements of AD/JETSTREAM/43.\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\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This document does not expand or alter scope; it is a straightforward cancellation of a redundant directive, consistent with the original regulatory framework for managing aircraft airworthiness."},"complexity_factors":["Document is a single-page cancellation notice with no operative provisions","No defined terms, cross-references, or conditional logic","Consists entirely of a header, title, single-word status ('CANCELLED'), and one-sentence explanation","No substantive legal obligations created or modified — merely removes a duplicate requirement"],"plain_english_summary":"**What this is:** This is a cancellation notice for an Airworthiness Directive (AD) — essentially a safety rule that applies to specific aircraft.\n\n**What it does:** The Civil Aviation Safety Authority (CASA) has cancelled Airworthiness Directive AD/JETSTREAM/46, which previously imposed restrictions on landing flap settings for British Aerospace BAe 3100 (Jetstream series) aeroplanes.\n\n**Why it was cancelled:** The directive was redundant — it repeated the exact same requirements already found in another directive, AD/JETSTREAM/43. Rather than having two rules saying the same thing, CASA cancelled the duplicate.\n\n**Who it affects:** Owners and operators of British Aerospace Jetstream aircraft (specifically the BAe 3100 series). For these operators, nothing actually changes — the same landing flap restrictions still apply via the other directive, they just don't need to follow two separate documents anymore.\n\n**Why it matters:** This is administrative housekeeping. It reduces paperwork and confusion for aircraft operators by eliminating a duplicate safety requirement. The safety standard itself remains unchanged."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":true,"description":"Scope changed in the sense that AD/JETSTREAM/46 itself is removed from the schedule (it is cancelled). The background states the reason: AD/JETSTREAM/46 duplicated the requirements of AD/JETSTREAM/43, so the regulator eliminated the duplicate instrument while leaving the substantive requirements covered under AD/JETSTREAM/43 (Background). Operators should therefore look to AD/JETSTREAM/43 for the operative obligations; the standalone scope of AD/JETSTREAM/46 no longer exists."},"complexity_factors":["Single, discrete administrative action (cancellation) rather than introduction of new technical requirements.","Document is very short and self-contained.","Cross-reference to another directive (AD/JETSTREAM/43) adds a small layer of complexity because readers must consult that directive for operative requirements.","Lack of technical detail about the original flap restriction in this text limits required technical interpretation.","Potential for administrative confusion from cancelling one instrument while retaining equivalent requirements elsewhere."],"plain_english_summary":"This instrument cancels Airworthiness Directive AD/JETSTREAM/46, which applied to British Aerospace BAe 3100 (Jetstream) aeroplanes. The cancellation removes the standalone directive because its requirements duplicated AD/JETSTREAM/43, so operative obligations remain under AD/JETSTREAM/43. \n\nPractically, operators and maintainers lose a duplicate item to track (reducing administrative burden), but must rely on AD/JETSTREAM/43 for compliance; there is some risk of confusion if stakeholders miss the cross-reference."}},"importantCases":[],"_links":{"self":"/api/acts/ad-jetstream-46-landing-flap-restriction","history":"/api/acts/ad-jetstream-46-landing-flap-restriction/history","analysis":"/api/acts/ad-jetstream-46-landing-flap-restriction/analysis","conflicts":"/api/acts/ad-jetstream-46-landing-flap-restriction/conflicts","importantCases":"/api/acts/ad-jetstream-46-landing-flap-restriction/important-cases","documents":"/api/acts/ad-jetstream-46-landing-flap-restriction/documents"}}