{"id":"F2006B05309","name":"AD/CESSNA 208/2 - Fuel Reservoir Tank and Wing Fuel Bay Primer","slug":"ad-cessna-208-2-fuel-reservoir-tank-and-wing-fuel-bay-primer","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45741,"registerId":"commonwealth-F2006B05309-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 208/2 - Fuel Reservoir Tank and Wing Fuel Bay Primer","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)  Cessna 208 Series Aeroplanes\n\n \n\n# AD/CESSNA 208/2 Fuel Reservoir Tank and Wing Fuel Bay Primer\n\nApplicability: Models 208 and 208A, S/Nos 20800001 through 20800108.\n\n \n\nModel 208B, S/Nos 208B0001 through 208B0008.\n\n \n\nRequirement: Action in accordance with Cessna S.B. No. CAB 87-14.\n\n \n\nCompliance: In accordance with the Requirement document after 20 November 1987.\n\n# 1/88 DM\n\n \n\nBackground: The manufacturer has requested that a fuel sample be taken and inspected to determine if primer particles are in the fuel system. Additional inspections and possible repairs will be required for the fuel reservoir tank and/or wing fuel bays if primer particles are found.\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, time-bound safety directive focused on a specific manufacturing defect in early Cessna 208 aircraft. It has not expanded beyond its original purpose of addressing primer contamination in fuel systems."},"complexity_factors":["Very short document (approximately 150 words)","Only 2 defined applicability ranges (serial number blocks)","Single cross-reference to external document (Cessna Service Bulletin)","No nested conditions or exceptions","Simple compliance date with no alternative methods or phased implementation","No interpretation section or defined terms"],"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:**\n- Requires owners and operators of certain **Cessna 208 series aircraft** (Caravan models) to inspect their fuel systems for dangerous contamination.\n- Specifically, they must check for **primer particles** (tiny bits of paint primer that may have flaked off inside fuel tanks) in the fuel reservoir tank and wing fuel bays.\n- If contamination is found, additional inspections and repairs are required.\n\n**Who it affects:**\n- Owners and operators of early-model Cessna 208 and 208A aircraft (serial numbers 20800001 through 20800108)\n- Owners and operators of early-model Cessna 208B aircraft (serial numbers 208B0001 through 208B0008)\n\n**Why it matters:**\nPrimer particles in the fuel system can clog fuel lines, filters, or engine components, potentially causing **engine failure in flight**. This directive prevents accidents by catching contamination before it becomes dangerous.\n\n**What must be done:**\n- Follow the manufacturer's Service Bulletin (S.B. No. CAB 87-14) — a technical instruction document from Cessna\n- Complete the work after **20 November 1987**\n- Take fuel samples and inspect them; perform further work if contamination is found"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive’s scope aligns with its stated intent in the text: it targets specific Cessna 208-series aircraft by serial number to detect primer particles in the fuel system and requires actions described in the manufacturer’s service bulletin. There is no indication in the text that the scope has been expanded or narrowed from that stated purpose; the document specifies applicability, the required reference (Cessna S.B. No. CAB 87-14) and the compliance date. (Applicability; Requirement; Compliance; Background)"},"complexity_factors":["Narrow applicability limited to specific models and serial-number ranges (Applicability)","Primary action is a simple diagnostic step (fuel sampling and inspection) but may lead to conditional additional inspections and repairs if particles are found (Background)","Compliance depends on an external technical document (Cessna S.B. No. CAB 87-14), requiring access to and implementation of that bulletin (Requirement)","Fixed compliance date with limited regulatory discretion as to method — clear requirement but constrained flexibility (Compliance; Requirement)","Operational impacts (downtime, parts, maintenance capability) introduce practical implementation considerations beyond the text of the directive (Background; Requirement)"],"plain_english_summary":"Owners/operators of specific Cessna 208-series aeroplanes (listed serial numbers) must, from 20 Nov 1987, follow Cessna Service Bulletin CAB 87-14 to take and inspect a fuel sample for primer particles. If particles are found, further inspections and repairs to the fuel reservoir/wing bays are required before return to service.\n\nThis mandatory AD affects only the named serial-numbered aircraft, places costs and downtime on owners/operators, and hinges on access to the referenced service bulletin and competent maintenance."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-208-2-fuel-reservoir-tank-and-wing-fuel-bay-primer","history":"/api/acts/ad-cessna-208-2-fuel-reservoir-tank-and-wing-fuel-bay-primer/history","analysis":"/api/acts/ad-cessna-208-2-fuel-reservoir-tank-and-wing-fuel-bay-primer/analysis","conflicts":"/api/acts/ad-cessna-208-2-fuel-reservoir-tank-and-wing-fuel-bay-primer/conflicts","importantCases":"/api/acts/ad-cessna-208-2-fuel-reservoir-tank-and-wing-fuel-bay-primer/important-cases","documents":"/api/acts/ad-cessna-208-2-fuel-reservoir-tank-and-wing-fuel-bay-primer/documents"}}