{"id":"F2006B09751","name":"AD/F28/14 - Aileron Control System - Modification","slug":"ad-f28-14-aileron-control-system-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115958,"registerId":"commonwealth-F2006B09751-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/F28/14 - Aileron Control System - 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 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Fokker F28 Series Aeroplanes\n\n \n\n \n\n| AD/F28/14 | Aileron Control System - Modification | NK |\n| --- | --- | --- |\n| Applicability: | All models with S/Nos. 11003 to 11031 and 11991 to 11994. |  |\n| Document: | Fokker SB F28/27-47. |  |\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 \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":4,"scope_assessment":{"changed":false,"description":"The supplied text sets a clear, narrow scope: it applies only to Fokker F28 aircraft with serial numbers 11003–11031 and 11991–11994 and refers to Fokker Service Bulletin F28/27-47 for the modification. The text contains no indication that the instrument’s scope has been altered from any prior or original intent."},"complexity_factors":["Narrow technical scope limited to specific serial numbers (Applicability) — reduces breadth but concentrates technical detail.","Technical execution delegated to an external manufacturer service bulletin (Fokker SB F28/27-47) — requires cross-referencing and specialist interpretation.","Regulatory enforceability under Part 39/CASA — compliance is mandatory and interacts with maintenance certification and approval processes.","Operational impacts on owners/operators (scheduling, parts, certified labour, aircraft downtime) — practical complexity for implementers.","Lack of explanatory material in the AD text itself — the rationale and detailed procedures are in the referenced document, increasing reliance on external technical documentation."],"plain_english_summary":"This AD, issued by CASA under Part 39, mandates a modification to the aileron control system on Fokker F28 aeroplanes with S/Ns 11003–11031 and 11991–11994, to be carried out by following Fokker Service Bulletin F28/27-47.  \n\nThe affected owners/operators must arrange, fund and certify the work, bearing costs, downtime and normal retrofit risks."},"kimi_summary":{"content_quality":"rejected","complexity_score":2,"rejection_reason":"The provided content is clearly incomplete — it appears to be only a header table or cover page for an Airworthiness Directive, with extensive whitespace padding and no substantive legislative text (no requirements, compliance dates, or operative provisions). The actual AD content (mandatory actions, compliance timeframes, etc.) is missing.","scope_assessment":{"changed":false,"description":"Not applicable — insufficient content to assess scope changes. The fragment appears to be a standard Airworthiness Directive cover page, which by design has a narrow, specific scope (particular aircraft serial numbers and a single system modification)."},"complexity_factors":["Extremely short document — only a header table with basic identifying information","No substantive legislative text provided — appears to be a fragment or cover page only","Single cross-reference to external technical document (Fokker SB F28/27-47)","No defined terms, conditions, or procedural requirements visible in the extracted content","Simple applicability criteria (specific serial number ranges)"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) under the Civil Aviation Regulations 1998.\n\n**What it does:**\n- Requires owners and operators of specific Fokker F28 series aircraft to modify the aileron control system (the mechanism that controls the plane's roll and banking).\n- The modification must follow the instructions in **Fokker Service Bulletin F28/27-47** — a technical document from the aircraft manufacturer detailing the required fix.\n\n**Who it affects:**\n- Operators of Fokker F28 aircraft with **serial numbers 11003 to 11031 and 11991 to 11994**.\n\n**Why it matters:**\n- Airworthiness Directives are legally binding safety requirements. If you don't comply, you can't legally fly the aircraft. This particular AD addresses a specific safety issue with the aileron control system that, if left unaddressed, could affect the aircraft's controllability and safety."}},"importantCases":[],"_links":{"self":"/api/acts/ad-f28-14-aileron-control-system-modification","history":"/api/acts/ad-f28-14-aileron-control-system-modification/history","analysis":"/api/acts/ad-f28-14-aileron-control-system-modification/analysis","conflicts":"/api/acts/ad-f28-14-aileron-control-system-modification/conflicts","importantCases":"/api/acts/ad-f28-14-aileron-control-system-modification/important-cases","documents":"/api/acts/ad-f28-14-aileron-control-system-modification/documents"}}