{"id":"F2006B02218","name":"AD/AC-SNOW/5 - Fin Bracing Wire Fittings - Modification","slug":"ad-ac-snow-5-fin-bracing-wire-fittings-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41448,"registerId":"commonwealth-F2006B02218-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/AC-SNOW/5 - Fin Bracing Wire Fittings - Modification","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 7/1967,Aircraft below 5700 kg,Ayres Thrush (Snow) Commander Series Aeroplanes,Fin Bracing Wire Fittings - Modification,5\ntitle: Airworthiness Directive - AD/AC-SNOW/5 - Fin Bracing Wire Fittings - Modification\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)  Ayres Thrush (Snow) Commander Series Aeroplanes\n\n \n\nAD/AC-SNOW/5 Fin Bracing Wire Fittings - Modification 7/67\n\nApplicability: Model S-2D S/Nos. 1311D to 1410D.\n\n \n\nDocument: Aero Commander - Olney Division SL No. 48, Rev. A. Compliance: Forthwith.\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":1365},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This is the original 1967 directive (Issue 7/67) and maintains its original narrow scope. There is no indication of subsequent amendment or expansion beyond the specific fin bracing wire modification for the identified aircraft serial numbers."},"complexity_factors":["Single paragraph of operative text","No definitions section or interpretive provisions","Simple applicability clause referencing specific model and serial number range","Single compliance requirement ('forthwith') referencing an external technical document","No conditional logic, exceptions, or cross-references to other legislation"],"plain_english_summary":"**What this does:** This directive orders owners and operators of specific Ayres Thrush (Snow) Commander aircraft to modify the fin bracing wire fittings (the hardware that holds the tail fin in place).\n\n**Who it affects:** Anyone operating Model S-2D aircraft with serial numbers between 1311D and 1410D.\n\n**What you must do:** You must immediately carry out the modification described in Aero Commander Service Letter No. 48, Revision A. This is a safety requirement to ensure the tail structure remains secure during flight."}},"importantCases":[],"_links":{"self":"/api/acts/ad-ac-snow-5-fin-bracing-wire-fittings-modification","history":"/api/acts/ad-ac-snow-5-fin-bracing-wire-fittings-modification/history","analysis":"/api/acts/ad-ac-snow-5-fin-bracing-wire-fittings-modification/analysis","conflicts":"/api/acts/ad-ac-snow-5-fin-bracing-wire-fittings-modification/conflicts","importantCases":"/api/acts/ad-ac-snow-5-fin-bracing-wire-fittings-modification/important-cases","documents":"/api/acts/ad-ac-snow-5-fin-bracing-wire-fittings-modification/documents"}}