{"id":"F2006B04845","name":"AD/CAP 10/2 - Fuel System","slug":"ad-cap-10-2-fuel-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44652,"registerId":"commonwealth-F2006B04845-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CAP 10/2 - Fuel System","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)  Avions Mudry Cap Series Aeroplanes\n\n \n\nAD/CAP 10/2 Fuel System 2/92\n\nApplicability: All CAP 10B aircraft from S/N 01 to 208 inclusive.\n\n \n\nRequirement: Action in accordance with Avions Mudry & CIE Service Bulletin CAP10B-28-001.\n\n \n\nNote: DGAC AD 91-112(A) refers.\n\n \n\nCompliance: Prior to issue of a Certificate of Airworthiness.\n\n \n\nBackground: Loss of engine power through air entering the fuel system via the inverted flight valve hose has been reported.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\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":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific mechanical defect in a specific aircraft model. It has not expanded beyond its original purpose of mandating a fuel system fix for CAP 10B aircraft."},"complexity_factors":["Extremely short document (under 200 words)","Only 1 defined applicability criterion (serial number range 01-208)","Single requirement referencing an external technical document (Service Bulletin)","No conditional logic, exceptions, or nested provisions","No cross-references to other legislation beyond a single note about a French aviation authority directive (DGAC AD 91-112(A))","Straightforward compliance deadline (prior to Certificate of Airworthiness issuance)"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) that requires specific repairs or inspections on aircraft.\n\n**What it does:**\nOrders owners and operators of certain French-made aerobatic planes (Avions Mudry CAP 10B, serial numbers 01 through 208) to fix a dangerous fuel system defect. The problem involves a hose in the inverted flight valve that can let air into the fuel system, causing sudden engine failure — obviously catastrophic during flight.\n\n**Who must act:**\nAnyone who owns or operates one of these specific CAP 10B aircraft before the plane can be issued a Certificate of Airworthiness (the official document saying a plane is safe to fly).\n\n**What action is required:**\nFollow the manufacturer's official repair instructions in \"Service Bulletin CAP10B-28-001\" — essentially a technical memo from the plane's maker (Avions Mudry & CIE) telling mechanics exactly what to check and fix.\n\n**Why it matters:**\nEngine power loss from fuel starvation is a serious safety risk, especially in aerobatic aircraft that routinely fly upside down. This directive prevents crashes by forcing a fix before the plane is certified airworthy."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive’s scope is confined to CAP 10B aircraft S/N 01–208 and requires the actions set out in Service Bulletin CAP10B-28-001 to be completed before issuing a Certificate of Airworthiness (Applicability; Requirement; Compliance). There is no indication in the provided text that the scope has been broadened or narrowed from its apparent original purpose of addressing air ingress to the fuel system via the inverted flight valve hose (Background; Note)."},"complexity_factors":["Narrow and explicit applicability (single model and defined serial number range) reduces scope complexity (Applicability).","Mandates compliance by reference to a single manufacturer Service Bulletin, shifting technical detail outside the directive and requiring consultation of that external document (Requirement).","Compliance point tied to Certificate of Airworthiness creates a clear enforcement trigger but requires coordination with certification processes (Compliance).","No alternative compliance routes, exemptions, or technical detail in the directive increases dependence on the Service Bulletin for implementation decisions (Requirement).","Cross-reference to a foreign AD (DGAC AD 91-112(A)) introduces a secondary source to consult for context but does not materially expand obligations in this text (Note)."],"plain_english_summary":"This directive requires owners/operators of Avions Mudry CAP 10B aircraft (S/N 01–208) to have the work in Service Bulletin CAP10B-28-001 carried out before a Certificate of Airworthiness is issued. It was issued after reports of engine power loss from air entering the fuel system via the inverted flight valve hose.\n\nThe civil regulator enforces compliance by withholding the CoA; owners bear the cost, downtime, and choice of qualified maintenance provider."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cap-10-2-fuel-system","history":"/api/acts/ad-cap-10-2-fuel-system/history","analysis":"/api/acts/ad-cap-10-2-fuel-system/analysis","conflicts":"/api/acts/ad-cap-10-2-fuel-system/conflicts","importantCases":"/api/acts/ad-cap-10-2-fuel-system/important-cases","documents":"/api/acts/ad-cap-10-2-fuel-system/documents"}}