{"id":"F2006B04207","name":"AD/BEECH 90/13 - Fuel Heater System Shield - Modification","slug":"ad-beech-90-13-fuel-heater-system-shield-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43963,"registerId":"commonwealth-F2006B04207-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 90/13 - Fuel Heater System Shield - Modification","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 90 and 65-90 (King Air) Series Aeroplanes\n\n \n\nAD/BEECH 90/13 Fuel Heater System Shield - Modification 7/68\n\nApplicability: Models 65-90 & 65-A90 S/Nos. LJ-1 to LJ-301. Document:  Beechcraft SB No. 67-16.\n\nCompliance: Within 100 hours’ time in service after 28 December 1967.\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":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1877},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This directive maintains its original narrow, technical scope. It targets a specific airworthiness issue (fuel heater shielding) for defined aircraft models and has not expanded to cover additional systems, aircraft types, or broader operational requirements beyond the original 1968 safety modification."},"complexity_factors":["Single, unambiguous compliance requirement","Limited applicability to specific aircraft models and serial numbers only","No defined terms section or interpretive provisions","No exceptions, exemptions, or conditional logic","Clear reference to external technical standard (Service Bulletin No. 67-16)"],"plain_english_summary":"Owners/operators of specific Beechcraft King Air 65-90 and 65‑A90 aircraft (S/N LJ‑1 to LJ‑301) must, under this CASA Airworthiness Directive, modify the fuel‑heater shielding to eliminate a potential fire/heat risk to nearby components. Compliance follows Beechcraft Service Bulletin No. 67‑16 and must be completed within 100 flight hours after 28 December 1967."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-90-13-fuel-heater-system-shield-modification","history":"/api/acts/ad-beech-90-13-fuel-heater-system-shield-modification/history","analysis":"/api/acts/ad-beech-90-13-fuel-heater-system-shield-modification/analysis","conflicts":"/api/acts/ad-beech-90-13-fuel-heater-system-shield-modification/conflicts","importantCases":"/api/acts/ad-beech-90-13-fuel-heater-system-shield-modification/important-cases","documents":"/api/acts/ad-beech-90-13-fuel-heater-system-shield-modification/documents"}}