{"id":"F2006B03648","name":"AD/BEECH 1900/30 - Electrical Loom Inspection","slug":"ad-beech-1900-30-electrical-loom-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43238,"registerId":"commonwealth-F2006B03648-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 1900/30 - Electrical Loom Inspection","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nBeechcraft 1900 Series Aeroplanes\n\nAD/BEECH 1900/30 Electrical Loom Inspection 11/99\n\nTX\n\nApplicability: All models.\n\nRequirement: 1. Inspect 531 and 631 zones, under panel 531AT and 631AT, for evidence of electrical wiring chaffing and rub or burn marks on the aluminium fuel lines. Ensure all wire is secured in place with adequate clearance to any fuel line.\n\n    2. If any damage is observed during Requirement 1 inspection, then repair and secure any wiring that is damaged in accordance with approved maintenance data or Federal Aviation Administration Advisory Circular AC 43.13-1B dated 8 September 1998.\n\n    3. If any damage is observed during Requirement 1 inspection, then replace any affected fuel pipe.\n\n    4. Submit a report of the inspection results, including negative results, to the Manager, Technical Specialists, Airworthiness Branch, Civil Aviation Safety Authority, GPO Box 2005, Canberra ACT 2601.\n\nCompliance: 1. Before next flight.\n\n    2. Before next flight.\n\n    3. Before next flight.\n\n    4. Within 10 days of accomplishing this Directive.\n\nThis Airworthiness Directive becomes effective on 20 September 1999.\n\nBackground: A recent in flight fire has been reported by an operator. This was caused by the landing light wire chaffing and shorting onto the fuel line, resulting in a hole in the fuel line.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1938},"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This directive maintains its original narrow, reactive scope addressing the specific hazard of electrical wiring contacting fuel lines in Beechcraft 1900 aircraft. It has not expanded beyond the original safety incident (in-flight fire caused by landing light wire chaffing) that prompted its issuance."},"complexity_factors":["Narrow applicability limited to single aircraft series (Beechcraft 1900)","Precise spatial definitions requiring technical aviation knowledge (zones 531/631, panels 531AT/631AT)","Simple conditional logic: repair obligations triggered only if inspection reveals damage","Immediate compliance deadlines ('before next flight') for safety-critical actions","Single external reference to technical maintenance standard (FAA Advisory Circular AC 43.13-1B)"],"plain_english_summary":"This emergency Airworthiness Directive applies to all Beechcraft 1900 aircraft to address a hazard where electrical wiring can chafe into fuel lines, causing sparks and in‑flight fires after an incident where a landing light wire burned a hole in a fuel pipe.  \n\nOperators must inspect the affected access zones before the next flight, secure or repair wiring and replace any compromised fuel lines immediately, and report inspection results to CASA within 10 days. Effective 20 September 1999."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-1900-30-electrical-loom-inspection","history":"/api/acts/ad-beech-1900-30-electrical-loom-inspection/history","analysis":"/api/acts/ad-beech-1900-30-electrical-loom-inspection/analysis","conflicts":"/api/acts/ad-beech-1900-30-electrical-loom-inspection/conflicts","importantCases":"/api/acts/ad-beech-1900-30-electrical-loom-inspection/important-cases","documents":"/api/acts/ad-beech-1900-30-electrical-loom-inspection/documents"}}