{"id":"F2006B02227","name":"AD/AIRCON/11 - ABG Semca Cold Air Unit - Compressor Wheel and Scroll","slug":"ad-aircon-11-abg-semca-cold-air-unit-compressor-wheel-and-scroll","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41457,"registerId":"commonwealth-F2006B02227-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/AIRCON/11 - ABG Semca Cold Air Unit - Compressor Wheel and Scroll","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 6/1992,Equipment,Airconditioning Equipment,ABG Semca Cold Air Unit - Compressor Wheel and Scroll,11\ntitle: Airworthiness Directive - AD/AIRCON/11 - ABG Semca Cold Air Unit - Compressor Wheel and Scroll\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Airconditioning Equipment\n\n \n\n# AD/AIRCON/11 ABG Semca Cold Air Unit - Compressor\n\nWheel and Scroll\n\nApplicability: Aerospatiale AS332 helicopters, but not limited to this type.\n\n# 6/92\n\n \n\nRequirement: Action in accordance with the technical requirements of French AD 91-254(AB) for ABG SEMCA cold air units P/N 3202 A0101 and 3202 B0101 respectively installed in airconditioning pack P/N 3502 A03 and 3502 D01 as installed on, but not limited to, Aerospatiale AS332.\n\n \n\nNote: ABG SEMCA Service Bulletin No. 3502-21-01 R1 is referred.\n\n \n\nCompliance: Within 100 hours after 21 June 1992.\n\n \n\nBackground: To prevent compressor wheel and scroll deterioration due to erosion of heads of rivets which attach the shield to the compressor gasket. ABG SEMCA Service Bulletin No. 3502-21-01 R1 refers.\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":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The text shows no evidence the directive's scope was altered from its stated purpose. It applies to specified ABG SEMCA unit part numbers installed in named air‑conditioning packs and notes applicability beyond the Aerospatiale AS332; the instrument relies on the referenced French AD and service bulletin to define the exact technical scope."},"complexity_factors":["Directive delegates technical detail to a foreign AD (French AD 91-254(AB)) rather than reproducing actions","Requires consultation of manufacturer service bulletin (ABG SEMCA SB No. 3502-21-01 R1)","Applicability names specific part numbers but states 'not limited to' Aerospatiale AS332, creating potential scope uncertainty","Short compliance window (100 flight hours from 21 June 1992) imposes scheduling pressure","Technical actions likely require specialist maintenance facilities and parts, creating implementation and cost burdens on operators"],"plain_english_summary":"This directive requires operators to perform the technical actions set out in French AD 91-254(AB) on ABG SEMCA cold air units (P/N 3202 A0101 & 3202 B0101) installed in specified air‑conditioning packs, with compliance within 100 flight hours of 21 June 1992. It is presented as a preventive measure to stop compressor wheel and scroll deterioration from rivet‑head erosion (Background). Operators pay for inspections/repairs, must consult the foreign AD and ABG SEMCA Service Bulletin No. 3502-21-01 R1, and will incur maintenance downtime."},"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific mechanical defect in specific aircraft equipment. It has not expanded beyond its original purpose of mandating repairs to prevent compressor wheel deterioration."},"complexity_factors":["Very short document (approximately 200 words)","Only 2 defined part numbers explicitly referenced","Single compliance requirement with clear deadline","No nested exceptions or conditional logic","Cross-references only to external technical documents (French AD and Service Bulletin) rather than internal legislative provisions","No interpretation section or defined terms within the instrument itself"],"plain_english_summary":"This AD mandates inspection and repair of ABG Semca cold air units (P/N 3202 A0101/3202 B0101) on Aerospatiale AS332 helicopters because rivets securing the compressor wheel/scroll shield can erode and fail. Affects owners, operators and maintainers; compliance requires following French AD 91-254(AB) and ABG Semca Service Bulletin 3502-21-01 R1 within 100 flight hours after 21 June 1992. It’s safety-critical — non‑compliance grounds the aircraft."}},"importantCases":[],"_links":{"self":"/api/acts/ad-aircon-11-abg-semca-cold-air-unit-compressor-wheel-and-scroll","history":"/api/acts/ad-aircon-11-abg-semca-cold-air-unit-compressor-wheel-and-scroll/history","analysis":"/api/acts/ad-aircon-11-abg-semca-cold-air-unit-compressor-wheel-and-scroll/analysis","conflicts":"/api/acts/ad-aircon-11-abg-semca-cold-air-unit-compressor-wheel-and-scroll/conflicts","importantCases":"/api/acts/ad-aircon-11-abg-semca-cold-air-unit-compressor-wheel-and-scroll/important-cases","documents":"/api/acts/ad-aircon-11-abg-semca-cold-air-unit-compressor-wheel-and-scroll/documents"}}