{"id":"F2006B01979","name":"AD/A320/9 - Fuel Probes","slug":"ad-a320-9-fuel-probes","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41201,"registerId":"commonwealth-F2006B01979-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/A320/9 - Fuel Probes","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 7/1990,Aircraft above 5700 kg,Airbus Industrie A319, A320 and A321 Series Aeroplanes,Fuel Probes,9\ntitle: Airworthiness Directive - AD/A320/9 - Fuel Probes\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\nAD/A320/9 Fuel Probes 7/90\n\nApplicability: Models A320-111, A320-211, and A320-231.\n\n \n\nRequirement: Unless already accomplished, action in accordance with AOT 28/89/03 or Airbus Industrie Service Bulletin A320-28-1024 Revision 1.\n\n \n\nNote: DGAC AD 90-017-005(b) refers.\n\n \n\nCompliance: Prior to 31 August 1990.\n\n \n\nBackground: An investigation of inconsistent and inaccurate fuel quantity indication revealed hardware contacting fuel probes at various locations. This AD requires an inspection and modification.\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":2402},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow focus on the specific airworthiness issue of hardware contacting fuel probes in the designated Airbus A320 variants. There is no indication of scope expansion beyond this particular safety defect."},"complexity_factors":["Single-paragraph operative provision referencing external technical documentation","No definitions section or interpretive provisions","Narrow applicability limited to three specific aircraft model variants","Simple conditional logic ('unless already accomplished')"],"plain_english_summary":"**What this does:** Requires inspection and modification of fuel probe systems on specific Airbus A320 aircraft to fix safety issues with inaccurate fuel readings.\n\n**Who it affects:** Owners and operators of Airbus A320-111, A320-211, and A320-231 aircraft.\n\n**The requirement:** Operators must follow specific technical instructions from Airbus (Alert Operator Transmission 28/89/03 or Service Bulletin A320-28-1024 Revision 1) to inspect and modify the fuel probes, unless this work has already been completed.\n\n**Why it matters:** Investigations revealed that hardware was physically contacting fuel probes inside the tanks, causing inconsistent and incorrect fuel quantity indications. Pilots rely on accurate fuel data to ensure flights can be completed safely without running out of fuel."}},"importantCases":[],"_links":{"self":"/api/acts/ad-a320-9-fuel-probes","history":"/api/acts/ad-a320-9-fuel-probes/history","analysis":"/api/acts/ad-a320-9-fuel-probes/analysis","conflicts":"/api/acts/ad-a320-9-fuel-probes/conflicts","importantCases":"/api/acts/ad-a320-9-fuel-probes/important-cases","documents":"/api/acts/ad-a320-9-fuel-probes/documents"}}