{"id":"F2006B03990","name":"AD/BEECH 55/44 - Fuel Crossfeed Line","slug":"ad-beech-55-44-fuel-crossfeed-line","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43599,"registerId":"commonwealth-F2006B03990-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 55/44 - Fuel Crossfeed Line","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 55, 58 and 95-55 (Baron) Series Aeroplanes\n\n \n\nAD/BEECH 55/44 Fuel Crossfeed Line 9/76\n\nApplicability: All models 58.\n\n \n\nRequirement: Inspect fuel line P/N 58-920000-11 (aircraft S/N TH-1 to TH-384) and P/N\n\n002-920000-11 (aircraft S/N TH-385 and on) in left hand wheel well for signs of chafing by the main wheel tyre.\n\n \n\nNote: All fuel lines in this area of the left hand and right hand wheel wells should be examined for signs of chafing whenever a new main wheel tyre is fitted, and a check made for adequate clearance with gear retracted at each periodic inspection.\n\n \n\nCompliance: Within 100 hours’ time in service after 30 September 1976.\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":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1456},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive maintains its original narrow scope: a targeted safety inspection addressing a specific mechanical defect (fuel line chafing) in one aircraft model. No expansion of scope is evident."},"complexity_factors":["Specific part number variations based on aircraft serial number cut-off (TH-384 vs TH-385)","Technical aviation terminology (P/N, S/N, 'time in service') requiring domain knowledge","Conditional compliance based on maintenance events (new tyre fitting) mentioned in non-mandatory note"],"plain_english_summary":"This Airworthiness Directive requires owners/operators of Beechcraft Model 58 (serial TH‑1 onward) to inspect the fuel crossfeed line in the left wheel well for chafing from main tyre contact and to verify clearance when the gear is retracted; recommended to check fuel lines in both wheel wells whenever fitting a new main tyre. Compliance is mandatory within 100 hours after 30 September 1976 to prevent tyre‑induced fuel leaks and risk of fire or explosion."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-55-44-fuel-crossfeed-line","history":"/api/acts/ad-beech-55-44-fuel-crossfeed-line/history","analysis":"/api/acts/ad-beech-55-44-fuel-crossfeed-line/analysis","conflicts":"/api/acts/ad-beech-55-44-fuel-crossfeed-line/conflicts","importantCases":"/api/acts/ad-beech-55-44-fuel-crossfeed-line/important-cases","documents":"/api/acts/ad-beech-55-44-fuel-crossfeed-line/documents"}}