{"id":"F2006B08176","name":"AD/CESSNA 310/48 - Goodyear Fuel Cells - Inspection","slug":"ad-cessna-310-48-goodyear-fuel-cells-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115372,"registerId":"commonwealth-F2006B08176-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 310/48 - Goodyear Fuel Cells - 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)  Cessna 310 Series Aeroplanes\n\n \n\nAD/CESSNA 310/48 Goodyear Fuel Cells - Inspection 6/78\n\nApplicability: All models 310 fitted with Goodyear BTC-39 fuel cells. Document:  Cessna SL No. ME78-7.\n\nCompliance: Within 100 hours time in service after 30 June 1978 and annually thereafter as detailed in Cessna SL No. ME78-7.\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\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 focused on a specific aircraft part (Goodyear BTC-39 fuel cells in Cessna 310s). It has not expanded beyond its original purpose of mandating inspections for this particular defect. Airworthiness Directives are inherently narrow in scope by design."},"complexity_factors":["Extremely short document (approximately 150 words of substantive content)","Only 4 defined elements: applicability (aircraft model), specific part (Goodyear BTC-39 fuel cells), reference document (Cessna SL No. ME78-7), and compliance timeframe","No cross-references to other legislation beyond the parent Civil Aviation Regulations 1998","Single, straightforward compliance requirement with clear deadline","No conditional logic, exceptions, or nested provisions","Binary applicability test: either your aircraft has these fuel cells or it doesn't"],"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 compulsory \"recall notice\" for aircraft, but instead of fixing cars, it fixes planes.\n\n**What it does:** It requires owners and operators of **Cessna 310 series aircraft** fitted with **Goodyear BTC-39 fuel cells** to inspect those fuel cells for defects.\n\n**Who must comply:** Anyone operating a Cessna 310 model with these specific Goodyear fuel cells.\n\n**When to do it:** \n- **First inspection:** Within 100 hours of flying time after 30 June 1978\n- **Repeat inspections:** Every year after that\n\n**How to do it:** Follow the instructions in **Cessna Service Letter No. ME78-7** (a technical bulletin from the manufacturer).\n\n**Why it matters:** Fuel cells are critical components that store fuel. Defective fuel cells can leak, cause fires, or lead to engine failure. This AD ensures potential safety issues are caught before they cause accidents.\n\n**The bottom line:** If you own or fly one of these specific Cessna planes, you legally must get this inspection done on schedule. Flying without complying is against the law and puts lives at risk."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive, as written, applies specifically to all Cessna 310 models fitted with Goodyear BTC-39 fuel cells and requires an initial inspection within 100 hours time in service after 30 June 1978 and annual inspections thereafter, following Cessna SL No. ME78-7. The text contains no indication that the applicability or inspection requirements have been broadened or narrowed from an earlier stated intent; it sets a narrow, targeted inspection obligation and delegates procedural detail to the referenced Service Letter."},"complexity_factors":["Narrow technical applicability: applies only to Cessna 310 models fitted with Goodyear BTC-39 fuel cells (Applicability)","Time-based compliance schedule requiring tracking of hours-in-service and annual intervals (Compliance)","Reliance on an external document (Cessna SL No. ME78-7) for procedural detail increases administrative steps to obtain and follow that document (Document: Cessna SL No. ME78-7)","Reference to a historical benchmark date (30 June 1978) requires record-checking to determine when the first inspection window applies (Compliance)","Statutory issuance context (Civil Aviation Regulations, Part 39) requires operators to follow aviation regulatory enforcement practices","Absence of procedural text in the AD itself creates potential uncertainty about who may perform the inspections and what exact steps are required (Document: Cessna SL No. ME78-7)"],"plain_english_summary":"Requires inspection of Goodyear BTC-39 fuel cells in Cessna 310 aircraft within 100 hours time‑in‑service after 30 June 1978 and annually thereafter, carried out per Cessna Service Letter No. ME78-7. \n\nApplies to Cessna 310 owners/operators under Australia’s Civil Aviation framework; they must obtain the Service Letter, bear inspection costs, track hours/annual compliance and retain records."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-310-48-goodyear-fuel-cells-inspection","history":"/api/acts/ad-cessna-310-48-goodyear-fuel-cells-inspection/history","analysis":"/api/acts/ad-cessna-310-48-goodyear-fuel-cells-inspection/analysis","conflicts":"/api/acts/ad-cessna-310-48-goodyear-fuel-cells-inspection/conflicts","importantCases":"/api/acts/ad-cessna-310-48-goodyear-fuel-cells-inspection/important-cases","documents":"/api/acts/ad-cessna-310-48-goodyear-fuel-cells-inspection/documents"}}