{"id":"F2006B02037","name":"AD/AA-1/6 - Control Surface Bearing Support - Inspection","slug":"ad-aa-1-6-control-surface-bearing-support-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41259,"registerId":"commonwealth-F2006B02037-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/AA-1/6 - Control Surface Bearing Support - Inspection","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 NK,Aircraft below 5700 kg,Gulfstream (Grumman American/ American Aviation) AA-1 Series Aeroplanes,Control Surface Bearing Support - Inspection,6\ntitle: Airworthiness Directive - AD/AA-1/6 - Control Surface Bearing Support - Inspection\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)  Gulfstream (Grumman American/ American Aviation) AA-1 Series Aeroplanes\n\n \n\nAD/AA-1/6 Control Surface Bearing Support - Inspection NK\n\nApplicability: AA1A-0095 to 0323. Document:  American Aviation SB No. 126.\n\nCompliance: Before issue of a Certificate of Airworthiness.\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":2156},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This directive retains its original narrow scope as a targeted airworthiness inspection for a specific mechanical component on a defined subset of Gulfstream AA-1 aircraft. There is no evidence of scope expansion beyond the original safety issue concerning control surface bearing supports."},"complexity_factors":["Extremely brief text (approximately 25 words of substantive regulatory content)","No defined terms, interpretation section, or legislative notes","Single external reference to a technical standard (Service Bulletin No. 126)","Simple binary applicability test based solely on aircraft serial number","Unconditional compliance requirement with no exceptions, alternatives, or procedural steps detailed within the instrument itself"],"plain_english_summary":"**What this is:** A mandatory safety inspection rule for specific light aircraft.\n\n**Who it affects:** Owners and operators of Gulfstream AA-1 series aeroplanes built within a specific serial number range (AA1A-0095 to AA1A-0323). These are small aircraft weighing less than 5,700 kg.\n\n**What it requires:** Before the aircraft can be issued a **Certificate of Airworthiness** (the official government permit allowing it to fly), the bearing supports for the control surfaces must be inspected according to the procedures in American Aviation Service Bulletin No. 126.\n\n**Why it matters:** Control surfaces are the moving parts (like ailerons and elevators) that pilots use to steer and stabilise the aircraft. Faulty bearing supports could cause these surfaces to jam or fail, potentially leading to loss of control. This inspection ensures the hardware is safe before the aircraft enters or returns to service."}},"importantCases":[],"_links":{"self":"/api/acts/ad-aa-1-6-control-surface-bearing-support-inspection","history":"/api/acts/ad-aa-1-6-control-surface-bearing-support-inspection/history","analysis":"/api/acts/ad-aa-1-6-control-surface-bearing-support-inspection/analysis","conflicts":"/api/acts/ad-aa-1-6-control-surface-bearing-support-inspection/conflicts","importantCases":"/api/acts/ad-aa-1-6-control-surface-bearing-support-inspection/important-cases","documents":"/api/acts/ad-aa-1-6-control-surface-bearing-support-inspection/documents"}}