{"id":"F2006B08285","name":"AD/CESSNA 340/8 - Tip Tank Fuel Seepage - Inspect","slug":"ad-cessna-340-8-tip-tank-fuel-seepage-inspect","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115607,"registerId":"commonwealth-F2006B08285-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 340/8 - Tip Tank Fuel Seepage - Inspect","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 340 Series Aeroplanes\n\n \n\nAD/CESSNA 340/8 Tip Tank Fuel Seepage - Inspect 4/75\n\nApplicability: All models fitted with strobe lights in the wing tip fuel tank nose cap. Document:  1. Cessna SL ME73-4 Part II Item 2; or\n\n2. FAA AD 75-05-08.\n\n \n\nCompliance: Within 100 hours time in service after 30 April 1975 and thereafter at intervals not exceeding 100 hours time in service.\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":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue safety directive from 1975 addressing a specific airworthiness concern (fuel seepage near electrical equipment). It has not expanded beyond its original purpose of mandating recurring inspections for this specific defect in this specific aircraft model."},"complexity_factors":["Extremely short document (under 200 words)","Only 3 operative requirements: applicability, document reference, and compliance timing","No defined terms section — all language is plain operational English","No cross-references to other legislation beyond optional technical document sources","Simple conditional logic: one applicability criterion (strobe lights in wing tip tank nose cap) and one recurring compliance interval","No exceptions, exemptions, or nested conditions"],"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). Think of it as a \"recall notice\" for aircraft, but legally binding.\n\n**What it requires:** Owners and operators of **Cessna 340 series aeroplanes** must inspect the wing tip fuel tanks for fuel seepage (leaks). This applies only to planes that have **strobe lights installed in the nose cap of the wing tip fuel tank**.\n\n**When to do it:**\n- **First inspection:** Within 100 hours of flying time after 30 April 1975\n- **Repeat inspections:** Every 100 hours of flying time thereafter\n\n**Why it matters:** Fuel leaking near strobe lights (electrical equipment) creates a serious fire and explosion risk. This AD forces operators to catch leaks before they become dangerous.\n\n**Where the technical details come from:** Operators can follow either:\n- Cessna Service Letter ME73-4 Part II Item 2, **or**\n- FAA Airworthiness Directive 75-05-08 (the US equivalent)\n\n**Who's affected:** Anyone operating a Cessna 340 with this specific strobe light configuration — typically private owners, charter operators, and flying schools using these twin-engine aircraft."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument sets a defined inspection requirement for all Cessna 340 models with strobe lights in the wing tip fuel tank nose cap and specifies initial and recurring intervals (Applicability; Compliance). There is no text in the instrument indicating an expansion or narrowing of that scope from an earlier version."},"complexity_factors":["Narrow applicability: applies only to Cessna 340 models fitted with strobe lights in the wing tip fuel tank nose cap (Applicability).","Single, simple operational requirement: a recurring inspection at fixed 100-hour intervals (Compliance).","Technical detail delegated to external documents (Cessna SL ME73-4 Part II Item 2; FAA AD 75-05-08), requiring access to those materials for execution (Document).","Implicit implementation actions (arranging inspections, paying for labour/parts, scheduling downtime) are required but not specified in detail, adding minor practical complexity (Compliance; Document)."],"plain_english_summary":"This airworthiness directive requires owners/operators of Cessna 340s fitted with a strobe light in the wing-tip fuel tank nose cap to inspect for tip‑tank fuel seepage within 100 flight hours after 30 April 1975 and every 100 hours thereafter. Inspections must follow the referenced Cessna/FAA procedures; operators bear costs, schedule impacts, and any repair work. The rule targets a specific safety risk on a limited subset of aircraft."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-340-8-tip-tank-fuel-seepage-inspect","history":"/api/acts/ad-cessna-340-8-tip-tank-fuel-seepage-inspect/history","analysis":"/api/acts/ad-cessna-340-8-tip-tank-fuel-seepage-inspect/analysis","conflicts":"/api/acts/ad-cessna-340-8-tip-tank-fuel-seepage-inspect/conflicts","importantCases":"/api/acts/ad-cessna-340-8-tip-tank-fuel-seepage-inspect/important-cases","documents":"/api/acts/ad-cessna-340-8-tip-tank-fuel-seepage-inspect/documents"}}