{"id":"F2006B01984","name":"AD/A320/95 - Avionics Rack Protection","slug":"ad-a320-95-avionics-rack-protection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41206,"registerId":"commonwealth-F2006B01984-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/A320/95 - Avionics Rack Protection","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 9/1998,Aircraft above 5700 kg,Airbus Industrie A319, A320 and A321 Series Aeroplanes,Avionics Rack Protection,95\ntitle: Airworthiness Directive - AD/A320/95 - Avionics Rack Protection\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/A320/95 Avionics Rack Protection 9/98\n\nApplicability: All models A320, A321, and A319 series aircraft, without Airbus Industrie Modification 25995 or Service Bulletin A320-25-1186 incorporated.\n\n \n\nRequirement: Action in accordance with the instructions of Airbus Industrie Service Bulletin A320-25-1186.\n\n \n\nNote: DGAC AD 98-178-115(B) refers.\n\n \n\nCompliance: Unless already accomplished, before 16 May 2000.\n\n \n\nThis airworthiness directive becomes effective on 13 August 1998.\n\n \n\nBackground: The manufacturer received several reports of water ingress into the avionics bay. In some cases this has led to damage of computer electrical connectors. An extension of the existing water protection devices is required.\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":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive with a single, specific purpose: mandating water protection modifications for a defined aircraft type. There is no indication of scope creep; it addresses exactly the problem identified (water ingress in avionics bays) with a precise technical solution."},"complexity_factors":["Very short document (approximately 200 words)","Only 1 defined applicability criterion (aircraft without specific modification/service bulletin)","Single, straightforward compliance requirement (follow the Service Bulletin)","No nested exceptions or conditional logic","Only 1 cross-reference (to the French aviation authority's equivalent directive DGAC AD 98-178-115(B))","Clear, fixed deadline with simple 'unless already accomplished' exception"],"plain_english_summary":"This CASA Airworthiness Directive orders owners/operators of Airbus A319/A320/A321 aircraft without Modification 25995 or the Airbus Service Bulletin A320-25-1186 change to install improved water protection in the avionics bay.  \n\nIt addresses water ingress that damaged flight-computer connectors, posing a safety risk; operators had to complete the retrofit by 16 May 2000 to prevent hazardous failures."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive confines its scope to aircraft without the stated modification and mandates the manufacturer's service bulletin to address reported water ingress. There is no indication the AD expands or narrows obligations beyond requiring that specific modification."},"complexity_factors":["Narrow applicability: only A319/A320/A321 aircraft lacking Mod 25995 or SB A320‑25‑1186 are affected (Applicability).","Single required action: incorporation of Airbus Service Bulletin A320‑25‑1186 (Requirement).","Clear deadlines: effective date (13 Aug 1998) and compliance date (before 16 May 2000) reduce regulatory uncertainty (Compliance).","Dependency on external technical document: the AD delegates technical detail to the Airbus Service Bulletin, requiring access to and reliance on that document.","Operational burden: cost, parts, labour and aircraft downtime fall on operators to implement the modification (implied by Requirement/Compliance).","No alternate compliance procedures, exemptions or transition mechanisms specified in the AD, limiting flexibility.","Cross-reference to foreign authority (DGAC AD 98‑178‑115(B)) introduces an external regulatory reference."],"plain_english_summary":"Requires operators of Airbus A319/A320/A321 aeroplanes that do not already have Airbus Modification 25995 or Service Bulletin A320‑25‑1186 fitted to carry out the Service Bulletin instructions to extend water protection for the avionics rack by 16 May 2000 (effective 13 Aug 1998). The manufacturer says the change prevents water ingress that can damage avionics connectors; operators pay for parts, labour and aircraft downtime, and must schedule shop visits to comply."}},"importantCases":[],"_links":{"self":"/api/acts/ad-a320-95-avionics-rack-protection","history":"/api/acts/ad-a320-95-avionics-rack-protection/history","analysis":"/api/acts/ad-a320-95-avionics-rack-protection/analysis","conflicts":"/api/acts/ad-a320-95-avionics-rack-protection/conflicts","importantCases":"/api/acts/ad-a320-95-avionics-rack-protection/important-cases","documents":"/api/acts/ad-a320-95-avionics-rack-protection/documents"}}