{"id":"F2006B01939","name":"AD/A320/5 - Fuel Quantity System","slug":"ad-a320-5-fuel-quantity-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41161,"registerId":"commonwealth-F2006B01939-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/A320/5 - Fuel Quantity System","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-description: CASA Airworthiness Directive\nmeta-generator: Aspose.Words for .NET 22.10.0\nmeta-keywords: Issue 4/1990,Aircraft above 5700 kg,Airbus Industrie A319, A320 and A321 Series Aeroplanes,Fuel Quantity System,5\ntitle: Airworthiness Directive - AD/A320/5 - Fuel Quantity System\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)  Airbus Industrie A319, A320 and A321 Series Aeroplanes\n\n \n\n \n\n| AD/A320/5 | Fuel Quantity System | 4/90<br>DM |\n| --- | --- | --- |\n| Applicability: | All models listed in SB A320-28-1024. |  |\n| Requirement: | Action in accordance with SB A320-28-1024. |  |\n|  | Note: DGAC AD 90-ebc-005(B) also refers. |  |\n| Compliance: | Within 100 hours’ time in service after 2 March 1990. |  |\n| Background: | To ensure accurate fuel quantity readings. |  |\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 \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1652},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow technical scope. It addresses a specific safety-of-flight issue regarding fuel quantity indication systems in specific Airbus aircraft models, without expanding into broader operational or certification matters."},"complexity_factors":["Single table format with only four substantive fields","No interpretation section or defined terms","Single cross-reference to one external technical document (Service Bulletin)","No conditional logic, exceptions, or carve-outs","Plain language requirement and background explanation included in the instrument itself"],"plain_english_summary":"This CASA Airworthiness Directive requires owners/operators of Airbus A319/A320/A321 aircraft (as identified in Airbus Service Bulletin A320-28-1024) to perform the manufacturer’s prescribed maintenance on the fuel quantity indication system. It’s mandatory because accurate fuel readings are essential to flight safety. Compliance was required within 100 flight hours after 2 March 1990."}},"importantCases":[],"_links":{"self":"/api/acts/ad-a320-5-fuel-quantity-system","history":"/api/acts/ad-a320-5-fuel-quantity-system/history","analysis":"/api/acts/ad-a320-5-fuel-quantity-system/analysis","conflicts":"/api/acts/ad-a320-5-fuel-quantity-system/conflicts","importantCases":"/api/acts/ad-a320-5-fuel-quantity-system/important-cases","documents":"/api/acts/ad-a320-5-fuel-quantity-system/documents"}}