{"id":"F2006B10187","name":"AD/GAF-N22/40 - Fuel Tank Selector and Fuel Shut-Off Cables - Inspection","slug":"ad-gaf-n22-40-fuel-tank-selector-and-fuel-shut-off-cables-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55845,"registerId":"commonwealth-F2006B10187-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/GAF-N22/40 - Fuel Tank Selector and Fuel Shut-Off Cables - 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)  GAF N22 and N24 Series Aeroplanes\n\n \n\n# AD/GAF-N22/40  Fuel Tank Selector and Fuel Shut-Off Cables - Inspection\n\nApplicability: All models N22 and N24. Document:  GAF Alert SB No. ANMD-28-11.\n\nCompliance: Within 25 hours time in service after 22 July 1980.\n\n# 9/80\n\n \n\nBackground:  Incorrectly crimped cable sheath adjustment sleeves may detach from cable sheath when push loads are applied to the cable, allowing lost motion to the fuel tank selector valves or the fuel shut-off valves.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\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":false,"description":"The instrument, as published, applies to all GAF N22 and N24 models and prescribes an inspection within 25 hours TIS after 22 July 1980, referencing GAF Alert SB No. ANMD-28-11. The text contains no indication of any amendment, extension, narrowing or expansion of scope from an earlier or later version; therefore there is no evidence in the supplied text that the scope has changed from its original stated requirement (Applicability; Compliance; Document)."},"complexity_factors":["Narrow technical scope limited to fuel tank selector and fuel shut-off cable assemblies on N22 and N24 models (Applicability; Background)","Clear, short compliance deadline (25 hours TIS after 22 July 1980) reduces procedural complexity but increases scheduling pressure (Compliance)","Dependence on an external service bulletin (GAF Alert SB No. ANMD-28-11) for inspection procedure shifts procedural detail outside the directive, creating implementation reliance on that document (Document)","Absence of detailed acceptance criteria or centralized enforcement language in the directive leaves interpretation and corrective-action decisions to maintenance organisations/engineers (Document; Compliance)","Technical nature of the defect (crimped cable sheath adjustment sleeves detaching under push loads) requires skilled maintenance personnel and access to parts/tools, adding operational (but not legal) complexity (Background)"],"plain_english_summary":"This directive requires owners/operators of GAF N22 and N24 aeroplanes to inspect fuel tank selector and shut‑off cable assemblies for potentially detached crimped sheath adjustment sleeves, a condition that can cause lost motion at selector or shut‑off valves. Inspections must follow GAF Alert Service Bulletin No. ANMD‑28‑11 and be completed within 25 hours time‑in‑service after 22 July 1980. Costs and repairs fall to operators or their maintenance providers, creating short‑term demand for inspection and repair services."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue airworthiness directive from 1980 addressing a specific mechanical defect in specific aircraft models. It has not expanded beyond its original purpose of mandating a cable inspection."},"complexity_factors":["Extremely short document (under 200 words)","Only 4 operative provisions: applicability, document reference, compliance deadline, and background","No defined terms section","No cross-references to other legislation or regulations beyond the parent Civil Aviation Regulations 1998","Single, unambiguous compliance action with clear deadline","No conditional logic, exceptions, or alternative compliance methods"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) for specific aircraft.\n\n**What it does:**\nOrders owners and operators of **GAF N22 and N24 series aeroplanes** (small Australian-made aircraft, often used for agricultural work and training) to inspect their **fuel tank selector cables and fuel shut-off cables**.\n\n**The safety problem:**\nSome cables have **incorrectly crimped adjustment sleeves** (metal fittings that hold the cable housing in place). If these sleeves detach when force is applied to the cable, the pilot could lose control of the fuel valves — meaning they might not be able to switch fuel tanks or shut off fuel flow in an emergency.\n\n**What must be done:**\n- **Who:** Anyone operating these aircraft models\n- **When:** Within 25 hours of flying time after 22 July 1980\n- **How:** Follow the instructions in **GAF Alert Service Bulletin ANMD-28-11** (the manufacturer's official repair notice)\n\n**Why it matters:**\nFuel system failures in flight can cause engine stoppage. This directive prevents a known mechanical defect from causing potential crashes by forcing a one-time inspection and fix."}},"importantCases":[],"_links":{"self":"/api/acts/ad-gaf-n22-40-fuel-tank-selector-and-fuel-shut-off-cables-inspection","history":"/api/acts/ad-gaf-n22-40-fuel-tank-selector-and-fuel-shut-off-cables-inspection/history","analysis":"/api/acts/ad-gaf-n22-40-fuel-tank-selector-and-fuel-shut-off-cables-inspection/analysis","conflicts":"/api/acts/ad-gaf-n22-40-fuel-tank-selector-and-fuel-shut-off-cables-inspection/conflicts","importantCases":"/api/acts/ad-gaf-n22-40-fuel-tank-selector-and-fuel-shut-off-cables-inspection/important-cases","documents":"/api/acts/ad-gaf-n22-40-fuel-tank-selector-and-fuel-shut-off-cables-inspection/documents"}}