{"id":"F2006B03735","name":"AD/BEECH 23/19 Amdt 1 - Fuel and Oil Pressure System","slug":"ad-beech-23-19-amdt-1-fuel-and-oil-pressure-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43327,"registerId":"commonwealth-F2006B03735-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 23/19 Amdt 1 - Fuel and Oil Pressure 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)  Beechcraft 19, 23 and 24 Series Aeroplanes\n\n \n\nAD/BEECH 23/19\n\nAmdt 1\n\n\nFuel and Oil Pressure System 12/71\n\n \n\nApplicability: Models A23A, B23 & C23 with S/Nos. M-1069 to M-1310; Models 19A, M19A & B19 with S/Nos. MB-289 to MB-500;\n\nModels A23-24 and A24 with S/Nos. MA-273 to MA-368; and Model A24R with S/Nos. MC-3 to MC-72 except MC-22, MC-23, MC-39, MC-43, MC-63, MC-64 and\n\nMC-71 and aircraft produced prior to the above S/Nos. which have had the original line(s) replaced with the 130524-3 fire sleeved lines.\n\n \n\nRequirement: Action in accordance with Beechcraft SI No. 0411-240.\n\n \n\nNote: Compliance with a previous issue of this Directive constitutes compliance with this issue.\n\n \n\nCompliance: Within 100 hours time in service after 31 December 1977.\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a narrow, technical airworthiness directive focused on a specific safety issue with specific aircraft. It has not expanded beyond its original purpose of mandating a manufacturer service instruction for fuel and oil pressure systems."},"complexity_factors":["Single requirement referencing an external manufacturer document (Beechcraft SI No. 0411-240) rather than spelling out technical steps","Applicability limited to specific aircraft models and serial number ranges (4 model groups with defined serial number ranges, plus exception list for one model)","One simple compliance condition (time-in-service deadline)","No defined terms section, no cross-references to other legislation, no nested exceptions","Very short document (approximately 150 words of substantive content)"],"plain_english_summary":"This is an **Airworthiness Directive** (a mandatory safety order) issued by Australia's Civil Aviation Safety Authority for specific **Beechcraft aeroplanes**.\n\n**What it does:**\nRequires owners and operators of certain Beechcraft models (including the 19, 23 and 24 series) to inspect or modify their **fuel and oil pressure systems** following instructions from the manufacturer (Beechcraft Service Instruction No. 0411-240).\n\n**Who it affects:**\n- Owners and operators of specific Beechcraft models with particular serial numbers (mostly manufactured between certain serial number ranges)\n- Also covers older aircraft that have had their original fuel/oil lines replaced with a specific fire-resistant type (part number 130524-3)\n\n**Why it matters:**\nFuel and oil pressure systems are critical for safe flight. This directive addresses a known safety issue to prevent potential engine failure or fire. The compliance deadline was set for within 100 hours of flight time after 31 December 1977.\n\n**Key point:** If you already complied with an earlier version of this directive, you're still covered—no need to do it again."},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The amendment restates the applicability (by serial number), requires the action in Beechcraft SI No. 0411-240, sets the same type of compliance window, and explicitly accepts compliance with a previous issue of this Directive as satisfying the requirement (Note). On the face of the text provided, the amendment does not expand or narrow obligations beyond recognizing prior compliance; it continues to require the same technical action as prescribed in the referenced Service Instruction. (Applicability, Requirement, Compliance, Note)"},"complexity_factors":["Narrow applicability with specific serial-number ranges and explicit serial-number exclusions, which increases aircraft-by-aircraft verification complexity. (Applicability)","Dependence on an external technical document (Beechcraft SI No. 0411-240) for the required work creates implementation dependency and potential access/application issues. (Requirement)","Compliance deadline tied to hours-in-service after a calendar date requires operational scheduling and tracking of flight hours. (Compliance)","Technical nature of the required work (fuel and oil pressure system) implies need for qualified maintenance staff and parts, adding to execution complexity. (Requirement)","A clear provision that earlier compliance satisfies this amendment reduces redundancy and simplifies compliance in some cases. (Note)"],"plain_english_summary":"This Airworthiness Directive applies to specified Beechcraft Model 19, 23 and 24 aeroplanes by serial number and requires owners/operators to carry out the actions in Beechcraft Service Instruction No. 0411‑240 to address fuel and oil pressure system components. The work must be completed within 100 hours time-in-service after 31 December 1977; prior compliance with an earlier issue satisfies this amendment.\n\nCASA enforces the AD; owners/operators bear costs, must verify applicability (serial numbers and 130524‑3 fire‑sleeved line fitment) and keep records of compliance."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-23-19-amdt-1-fuel-and-oil-pressure-system","history":"/api/acts/ad-beech-23-19-amdt-1-fuel-and-oil-pressure-system/history","analysis":"/api/acts/ad-beech-23-19-amdt-1-fuel-and-oil-pressure-system/analysis","conflicts":"/api/acts/ad-beech-23-19-amdt-1-fuel-and-oil-pressure-system/conflicts","importantCases":"/api/acts/ad-beech-23-19-amdt-1-fuel-and-oil-pressure-system/important-cases","documents":"/api/acts/ad-beech-23-19-amdt-1-fuel-and-oil-pressure-system/documents"}}