{"id":"F2006B09760","name":"AD/F28/23 - Engine Controls - Inspection","slug":"ad-f28-23-engine-controls-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":54630,"registerId":"commonwealth-F2006B09760-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/F28/23 - Engine Controls - Inspection","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\nAD/F28/23 Engine Controls - Inspection NK\n\nApplicability: All models with S/Nos 11003 to 11073, 11075 and 11991 to 11993. Document:  Fokker SB F28/76-16.\n\nCompliance: Before 31 August 1974.\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 is a discrete, time-limited safety directive. It has not expanded beyond its original narrow purpose of mandating a specific inspection on specific aircraft by a specific date."},"complexity_factors":["Extremely short document (under 150 words)","No defined terms section","No cross-references to other legislation beyond the parent regulations","Simple conditional structure: single applicability criterion (serial numbers) and single compliance action","No exceptions, exemptions, or nested conditions","Clear, unambiguous deadline"],"plain_english_summary":"**What this is:** This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) under the Civil Aviation Regulations 1998.\n\n**What it does:** It requires owners and operators of specific Fokker F28 series aircraft to inspect their **engine controls** (the mechanical or electronic systems that manage engine power and operation). The inspection must follow the procedure outlined in **Fokker Service Bulletin F28/76-16**.\n\n**Who it affects:** This applies only to specific Fokker F28 aircraft with serial numbers between 11003–11073, 11075, and 11991–11993.\n\n**Why it matters:** Engine controls are critical safety systems. A malfunction could lead to loss of engine power or control during flight. This directive ensures potential defects are caught before they cause accidents.\n\n**The catch:** The compliance deadline was **before 31 August 1974** — meaning this directive is **long expired** and only of historical interest today. If you're seeing this in a current context, it likely means you're reviewing archived maintenance records or historical regulatory compliance."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The text does not indicate any change in scope from an original intent. It prescribes inspection for a defined set of Fokker F28 serial numbers, references a specific service bulletin for technical instructions, and sets a single compliance date. No amendment or scope-altering language is present in the supplied text."},"complexity_factors":["Narrow technical scope: single action (engine-control inspection) limited to specific serial numbers (Applicability).","Short, fixed compliance instruction with a single historical deadline (Compliance).","Technical details not included in the AD; execution depends on an external document (Fokker SB F28/76-16) (Document).","Regulatory context is straightforward (Schedule of Airworthiness Directives under Part 39), reducing procedural ambiguity.","Potential operational complexity arises from implementing the referenced service bulletin and arranging maintenance downtime, but that complexity is practical rather than legal."],"plain_english_summary":"This airworthiness directive requires owners/operators of the listed Fokker F28 serial-numbered aeroplanes to have the engine controls inspected per Fokker Service Bulletin F28/76‑16 by 31 August 1974. It binds affected operators and their maintenance organisations to comply, places inspection and repair costs and downtime on operators, and relies on the service bulletin for technical steps to mitigate an engine‑control safety concern enforced by the regulator."}},"importantCases":[],"_links":{"self":"/api/acts/ad-f28-23-engine-controls-inspection","history":"/api/acts/ad-f28-23-engine-controls-inspection/history","analysis":"/api/acts/ad-f28-23-engine-controls-inspection/analysis","conflicts":"/api/acts/ad-f28-23-engine-controls-inspection/conflicts","importantCases":"/api/acts/ad-f28-23-engine-controls-inspection/important-cases","documents":"/api/acts/ad-f28-23-engine-controls-inspection/documents"}}